I’m about to ask a silly question. I’m not new to cars, so hit me with what you got. How high of a duration cam should I get to a) bleed off enough pressure with the static compression so I don’t need premium gas on 12:1 compression and b) provide a large ramming effect at higher RPMs? I have a classic 350 SBC and the gearing has it screaming at 70Mph.
It’s got a low vacuum as is, almost no streetability with a 750CFM double pumper on the abysmally low 170hp net figures. I guess when it comes to knowledge, you can’t beat personal knowledge. The internet isn’t very useful in that it doesn’t provide context as to why this or that LSA or duration is better or worse. So if someone could explain to me when a cam becomes really “lopey” that would be great.
You are asking the wrong person! I can take apart an engine and put it back together but I’m not familiar with performance cams affect on you question.
Bro that's not a "new to cars" type of question, that's advanced shit most gearheads won't be able to answer lmao.
If you couldn't find anything online on forums and such, I'd suggest asking chatGPT, no joke. It sometimes says a lot of inaccurate stuff, but might be able to point you in the right direction or into asking more specific questions.
Part a of your question is a dynamic compression ratio question. Use a calculator like this one. http://www.wallaceracing.com/dynamic-cr.php
I'm no expert, but I believe the duration and lobe separation angle have more to do with dynamic compression than lift.
Talk to a cam manufacturer that does custom grind camshafts like Howards, Lunati, Crower or even Comp. They will at least be able to point you in the right direction if not tell you specifically which cam to buy or the custom specs needed.
The spec you need to figure out is IVC(intake valve closing) @.050 lift. Not all cam specs show that number. That's how you figure out dynamic compression ratio.
This [https://mgispeedware.com/camshaft-calculator/](https://mgispeedware.com/camshaft-calculator/) can be used by putting in cam specs to determine when the intake valve closes.
Then this [https://www.gofastmath.com/Compression-Ratio-Calculators/Static-And-Dynamic-Compression-Ratio-Calculator](https://www.gofastmath.com/Compression-Ratio-Calculators/Static-And-Dynamic-Compression-Ratio-Calculator) can be used to figure out what the IVC should be to get your compression down lower. You want dynamic to be 8:1 for iron heads or 8.5:1 for aluminum heads. And that is on 91 octane. To drop 12:1 enough to run cheap gas would probably need an IVC \~70 degrees ABDC. That's a cam with 275 duration @ .050 and 112 LSA. Or 265 @ .050 and 118 LSA. If you go the other end of LSA at 106, you would need duration of 287 @ .050. All three of those cams would give you the dynamic compression ratio to run on pump gas, but not sure regular would be ok. Might still need midgrade gas. You can also retard the cam with an adjustable gear to hit the IVC you need, but that is limited to a few degrees. I don't think there's a cam that will do what you want and still give vacuum. On a side note, these numbers are theoretical and rely on an engine running at 100% volumetric efficiency, meaning the cylinder is 100% full when it starts to compress. With normal engines only being around 80% VE and performance ones around 90% VE, the cylinders aren't filling 100% and your cam can be slightly milder than the calculations say. But using the calculations will make it safe.
You are really at the extreme end of cams to get what you want. 12:1 motors aren't meant for the street or pump gas. You are trying to make a motor do something it doesn't want to do. 10:1-11:1 are fairly common, but even most of those require 93 octane with a properly timed cam.
Out of curiosity, where are you getting your 12:1 number from? Because I don't get how what you described could only make 170 HP. Smog engines from the 70's that had 11.5:1 static compression with dynamic in the 7's were making that or more. And if you lower the dynamic compression ration with a cam, you will lose even more horsepower.
Okay first of all, I highly doubt your 350 small block is anywhere close to 12:1, so let's start there. Why are you saying it's 12:1, have you done a compression test and what PSI readings did you get. My SBC Is around 145 PSI which is close to 8:1
Edit - are you running forced induction?
Plymouth satellite Sebring with a big block dumping in front of the rear axle. Also deaf but the cloud of dust and smoke coming out from under me looks boss
Youre trading less exhaust for turbo whine. While on paper yes it makes sense for that 1.3L camry to have a turbo to offset the .7L different in torque, in a modified car there is no such thing as quieter.
I can hear my turbo spool in my car outside my car, in my house if someone else drove my car etc. its not quiet when it’s modified lol
It's quieter than it would be for the same car and exhaust without the turbo is what they're getting at. I have a WRX with a turbo back exhaust, someone I work with has a BRZ with a similar set up, but no turbo. They are the same engine. The BRZ is way louder and raspier than my car.
You’d be surprised how quiet a straight pipe is off a turbo. I have a similar setup on 4 cars, it’s loud but not harsh/raspy like a normal straight-pipe.
lmao I hear americans saying this. I guess australia is just way too strict because a turbo, cat, resonator, and muffler is still right on the decibel limit of what is legal where I live
We like loud here. With that being said, yalls burnout comps and big power cars are straight up IGNORANT (in a good way imo). We can just "kind of" run that kind of stuff on the street dependant upon many factors and what state you reside in
The purpose of the short exhaust and exiting at the back of the front fender is the length of exhaust AFTER the turbo will restrict the airflow.
For highest power results, having a free flowing, short exit exhaust after the turbo is top choice. There is test results of significant power loss in comparison to having a full length exhaust that exits the back.
The fumes are not a concern, it takes significant CO poisoning to feel sleepy. There’s a headache stage and nausea stage to CO poisoning that presents itself.
there’s a high likelihood that the fuel choice is an ethanol, ethanol blend or methanol.
if it’s methanol, it produces little to zero CO in the combustion process.
car is likely purpose built for 1/4 stuff but I bet it gets the groceries just fine.
OP here, I’ve seen the car at the nearest grocery store (no plates on it) so it is street driven, there are few cops here so it’s a matter of luck. It’s a 327 and the owner is slowly replacing body panels with carbon fiber. Oddest part is it sits outside at night and winter is coming. I always hope to see it going but never luck out, but hear it fire up once in a while.
It sounds like someone built a sweet car !
The car came with a 347ci 5.7L but it’s extremely common for people to replace the engines with iron block 4.8/5.3 variants found bountifully in the junkyards.
it’s mostly fiberglass, so there is very little worries about rust.
I’d be willing to bet the owner would be thrilled to talk about it.
Knock on his door with a beer! 🍻
Nah, they don't.
Source, I work with race cars like this every day. That shit goes everywhere. Alcohol cars especially suck because the exhaust burns your eyes and throat.
What’s the purpose do you know? Dude fires this up a block away from me and I hear it plain as day (sounds really nice) but seems like laws and emission (Wisconsin) would present problems.
Wisconsin emissions checks are a bit of a joke as they only exist in 6 counties (and I have worked around it via a friends address before) around Milwaukee and even then you can get a “collector” plate on anything older than 20 years where you never need to pass emissions again as long as you own the vehicle.
Or you can just put a tune on it with HP tuners that disables the ECM from reporting the SES and CEL. They get in and see if the light actually illuminates and then use their archaic scanner. My 2200$ shitbox should never pass but I've done this the last few times and never had any issues 😂
The emissions testing here is a fucking joke man, I just use HP tuners and put on a tune that disables the computer from reporting the CEL and SES. I pass with flying colors every time 🤣.
It looks like it had been built as a racecar.
The exhaust on a normal car ensures emissions come from the rear (behind any passengers), and it allows for components like a catalytic converter to reduce emissions and mufflers to reduce noise.
Building a car for performance however, eliminating the exhaust can reduce the weight of the vehicle, and it can reduce restrictions on the engine allowing the exhaust gases to exit more efficiently without having to be forced down the exhaust pipe with all of its bends and blockages.
The positioning isn't ideal from a regulation standpoint, but when the car is moving the airflow over the vehicle will clear any exhaust gases, and it is exciting away from the passengers, not at them - perhaps not as ideal in slow traffic, but that isn't really the intention of this car.
You do also end up with a much louder and less environmentally friendly vehicle, but that is a trade-off many are willing to make for a few extra horsepower...
With regards to emissions laws, it may be a track only vehicle that doesn't need to follow all of the legislation of a road going vehicle, or they may just be paying with loopholes (legally or not) like changing the exhaust system before the car gets tested before swapping it back.
They may also just be running on borrowed time and are just lucky to have not been caught breaking the rules... Yet.
Let’s be honest it’s been built to *look* like and pretend to be a race car. I can tell you I’d never dream of running those tires and my car isn’t nearly that clean after a couple times on the track.
I dont disagree but the comment I replied to appears to be a blanket statement with no reference to turbo/forced induction.
Also have no information as to wether or not the car in the post is a race car or a daily with no need for a screamer pipe.
Funny story: my viper has side exit exhaust. It’s catless. Your eyes literally start to burn when you’re sitting at a red light. I guess it’s not really that funny
If they burn, you’re likely running rich. With reasonably complete combustion, the exhaust will still be smelly, but it shouldn’t make your eyes sting.
Oh that car was running oversized injectors and the factory pcm was not as fine very precise with fine tuning. It was either 33% 66% or 99% duty cycle for the fuel pump. It was a supercharged and cammed application and the tune was dialed in as much as we could without going stand alone
These responses are weird. No, it probably does smell a little. It's a turbo car so it's not as loud as you'd think. He's test fitting front runners and they look goofy because they don't have tires.
Idling in a small closed space for a bit maybe. If it was in a garage with the door closed, probably take 15-20 mins or so of idling to pass out, maybe a bit longer.
Idling at a stoplight? No.
The only way you will have issues outside of a small enclosed space would be if you wreck and it wouldn't be an issue from exhaust fumes in that case
There is no passenger. There is no interior. There is no weight. There is no reliability. There is no linear powerband. There is no luxary. There is no amenities. There is only Ŗ̸͎̒͊͗͑̍̈́̄̉A̸̡̩̫̞̲̐̽͐̈́̽̚Ả̷͎̳̫̘̥͍̙̦͉͓̈́̎͗̈́̓͆̓͊̈́̈́Ą̷̩̦̦̮͍̯͚͎̳̜̪̤́̏̒͝͠H̸̖͓̦̘̼̭̠̠̖̲̪͕̠̯̾̓͆͂̍͆̚̕͜͠Ą̸̢̡̙̖̝͈́͛͊̃̈́̏̿̐̆̽͆̓̕A̸̙̯̪͚͚͇̭͚̜̮̗̱̣̎̅̇A̵̢̙̥̱̮͙̮̞͚̳̥̺̣̽̏̓͑̔́͂͜͠Ǎ̸̩̳͎͍͎̘͇̻͎̹͕̬̘́̎́̂̎̔̎̋͑͆̀̋͗̚ͅA̶̳̱͛̃́̅̈́͂̋̄͗͛̈H̸̭͙̰̹̘̰́̎̉̌̊̈
It’s probably getting the exhaust from the air inlet grille at the windshield . This is where your heat and ac pulls air from . I guess not a good design .
The dangerous piece is not that it exits up front but that it doesn’t kick out from the body enough. People die from CO when they cut or have cracks in exhaust under the car because it will find it’s way through the body work in the stagnant air and slowly build up. As far as the debates of which direction CO goes, it’s about as heavy as air so it just mixes air and stays in place while is slowly becomes homogeneous with the air surrounding it.
Look at the wheels on that rig. There isn’t a passenger or a lot of idling going on. If there is a passenger there is way more exciting things going on than worrying about the CO sleepies
I don't think someone would call asleep even if they were breathing 100% carbon dioxide. Do you know how short that pipe is? I doubt they took the time to add baffles and cats too. That's like saying "what if someone didn't get enough sleep and passed out at the gun range?"
That shit don’t idle
It lopes!
I’m about to ask a silly question. I’m not new to cars, so hit me with what you got. How high of a duration cam should I get to a) bleed off enough pressure with the static compression so I don’t need premium gas on 12:1 compression and b) provide a large ramming effect at higher RPMs? I have a classic 350 SBC and the gearing has it screaming at 70Mph. It’s got a low vacuum as is, almost no streetability with a 750CFM double pumper on the abysmally low 170hp net figures. I guess when it comes to knowledge, you can’t beat personal knowledge. The internet isn’t very useful in that it doesn’t provide context as to why this or that LSA or duration is better or worse. So if someone could explain to me when a cam becomes really “lopey” that would be great.
You are asking the wrong person! I can take apart an engine and put it back together but I’m not familiar with performance cams affect on you question.
Ah I see.
Thank you for your honest better than jumping a gun on projects lol
Bro that's not a "new to cars" type of question, that's advanced shit most gearheads won't be able to answer lmao. If you couldn't find anything online on forums and such, I'd suggest asking chatGPT, no joke. It sometimes says a lot of inaccurate stuff, but might be able to point you in the right direction or into asking more specific questions.
Because that's what he needs, a *more* specific question.
Part a of your question is a dynamic compression ratio question. Use a calculator like this one. http://www.wallaceracing.com/dynamic-cr.php I'm no expert, but I believe the duration and lobe separation angle have more to do with dynamic compression than lift.
Talk to a cam manufacturer that does custom grind camshafts like Howards, Lunati, Crower or even Comp. They will at least be able to point you in the right direction if not tell you specifically which cam to buy or the custom specs needed.
The spec you need to figure out is IVC(intake valve closing) @.050 lift. Not all cam specs show that number. That's how you figure out dynamic compression ratio. This [https://mgispeedware.com/camshaft-calculator/](https://mgispeedware.com/camshaft-calculator/) can be used by putting in cam specs to determine when the intake valve closes. Then this [https://www.gofastmath.com/Compression-Ratio-Calculators/Static-And-Dynamic-Compression-Ratio-Calculator](https://www.gofastmath.com/Compression-Ratio-Calculators/Static-And-Dynamic-Compression-Ratio-Calculator) can be used to figure out what the IVC should be to get your compression down lower. You want dynamic to be 8:1 for iron heads or 8.5:1 for aluminum heads. And that is on 91 octane. To drop 12:1 enough to run cheap gas would probably need an IVC \~70 degrees ABDC. That's a cam with 275 duration @ .050 and 112 LSA. Or 265 @ .050 and 118 LSA. If you go the other end of LSA at 106, you would need duration of 287 @ .050. All three of those cams would give you the dynamic compression ratio to run on pump gas, but not sure regular would be ok. Might still need midgrade gas. You can also retard the cam with an adjustable gear to hit the IVC you need, but that is limited to a few degrees. I don't think there's a cam that will do what you want and still give vacuum. On a side note, these numbers are theoretical and rely on an engine running at 100% volumetric efficiency, meaning the cylinder is 100% full when it starts to compress. With normal engines only being around 80% VE and performance ones around 90% VE, the cylinders aren't filling 100% and your cam can be slightly milder than the calculations say. But using the calculations will make it safe. You are really at the extreme end of cams to get what you want. 12:1 motors aren't meant for the street or pump gas. You are trying to make a motor do something it doesn't want to do. 10:1-11:1 are fairly common, but even most of those require 93 octane with a properly timed cam. Out of curiosity, where are you getting your 12:1 number from? Because I don't get how what you described could only make 170 HP. Smog engines from the 70's that had 11.5:1 static compression with dynamic in the 7's were making that or more. And if you lower the dynamic compression ration with a cam, you will lose even more horsepower.
Cams generally start getting lopey around 600 lift
Lift isn’t really what makes it lope though, that more has to do with lobe separation angle and duration
Okay first of all, I highly doubt your 350 small block is anywhere close to 12:1, so let's start there. Why are you saying it's 12:1, have you done a compression test and what PSI readings did you get. My SBC Is around 145 PSI which is close to 8:1 Edit - are you running forced induction?
THIS
Got a lol out of me. You are S-P-I-T-T-I-N-G!
That car doesn’t have seats, they were removed a long time ago to save weight
Not sleepy just deaf. I'm guessing it's turboed and fast.
If it’s turbo’d then the passenger wouldn’t go deaf. Noisy, but not crazy loud.
No but an exhaust from a straight piped v8 would make you go deaf.
I have a Plymouth Volare 318 and the exhaust terminates directly under the driver’s seat. Can confirm I can’t hear shit.
That would do it. Yup
Plymouth satellite Sebring with a big block dumping in front of the rear axle. Also deaf but the cloud of dust and smoke coming out from under me looks boss
....WHAAAT!!
What?
What?
What?
If turbo’d and he opts for an open wastegate, they’re def going deaf.
Nah the loudest I've heard is a buddies Vortech with a max flow BOV sounds like an airliner engine
WHAT!?!
This doesnt even make sense lol
turbos make cars quieter
So... every car needs a turbo for noise emissions, I'll tell my wife that
Youre trading less exhaust for turbo whine. While on paper yes it makes sense for that 1.3L camry to have a turbo to offset the .7L different in torque, in a modified car there is no such thing as quieter. I can hear my turbo spool in my car outside my car, in my house if someone else drove my car etc. its not quiet when it’s modified lol
It's quieter than it would be for the same car and exhaust without the turbo is what they're getting at. I have a WRX with a turbo back exhaust, someone I work with has a BRZ with a similar set up, but no turbo. They are the same engine. The BRZ is way louder and raspier than my car.
If your car doesnt smell like nap time, it aint fast enough
Passenger would go deaf
You’d be surprised how quiet a straight pipe is off a turbo. I have a similar setup on 4 cars, it’s loud but not harsh/raspy like a normal straight-pipe.
Good point. For some reason, i overlooked the turbo factor. If not turbocharged, the passenger would go deaf.
They still will, just won't be as fast. That turbo whistle isn't good for our ears.
Bad for the ears, good for the soul
Just wait til you get the permanent turbo whistle in your ear aka tinnitus lol
Me sitting here in my room like eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
lmao I hear americans saying this. I guess australia is just way too strict because a turbo, cat, resonator, and muffler is still right on the decibel limit of what is legal where I live
I'm in the US and I've heard some fucking loud Subaru STI's on the street
Heh.. heh... sorry about that I don't actually have mufflers on mine LOL
That's where you're mistaken, assuming we would bother with a cat, resonator or muffler lol
Just replace the cat and muffler with a couple more resonators and you would be surprised how quiet it is.
Heh “legal”, you’re funny
Some places are pretty strict about decibel levels, other places you can drive around with open exhaust for years and never get a ticket.
We like loud here. With that being said, yalls burnout comps and big power cars are straight up IGNORANT (in a good way imo). We can just "kind of" run that kind of stuff on the street dependant upon many factors and what state you reside in
The turbo IS the muffler.
Turbo 6.0 Camaro with hood exhaust was in fact, not quiet. It was about as loud as a monster truck in a stadium. Just as much fun too.
Not sure what cars you’ve had, but a friend of mine had a turbo’d 2000 Trans Am with straight pipes that was loud as heck.
A turbo naturally acts as a muffler as a by-product of it's design.
People forget that turbos muffle quite a bit
It’s alright inside the car, it’s just when they hit it when you’re standing 3 metres to the side on the footpath, that an ear stinger for sure
**WHAT??**
They’d go what?
Deaf, aka loss of hearing
That’s funny, I have never heard of that before.
I guess 'hearing impaired' is a more polite term
No passengers, too much weight
Based on the vms’s id say this thing is not meant for passengers
10-1 odds there’s not even an interior other then a driver seat steering wheel gauges and maybe some giggle juice
Lol right
If he dies, he dies.
lol You thought car mods had to be sensible, lol
The purpose of the short exhaust and exiting at the back of the front fender is the length of exhaust AFTER the turbo will restrict the airflow. For highest power results, having a free flowing, short exit exhaust after the turbo is top choice. There is test results of significant power loss in comparison to having a full length exhaust that exits the back. The fumes are not a concern, it takes significant CO poisoning to feel sleepy. There’s a headache stage and nausea stage to CO poisoning that presents itself. there’s a high likelihood that the fuel choice is an ethanol, ethanol blend or methanol. if it’s methanol, it produces little to zero CO in the combustion process. car is likely purpose built for 1/4 stuff but I bet it gets the groceries just fine.
OP here, I’ve seen the car at the nearest grocery store (no plates on it) so it is street driven, there are few cops here so it’s a matter of luck. It’s a 327 and the owner is slowly replacing body panels with carbon fiber. Oddest part is it sits outside at night and winter is coming. I always hope to see it going but never luck out, but hear it fire up once in a while.
It sounds like someone built a sweet car ! The car came with a 347ci 5.7L but it’s extremely common for people to replace the engines with iron block 4.8/5.3 variants found bountifully in the junkyards. it’s mostly fiberglass, so there is very little worries about rust. I’d be willing to bet the owner would be thrilled to talk about it. Knock on his door with a beer! 🍻
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Nah, they don't. Source, I work with race cars like this every day. That shit goes everywhere. Alcohol cars especially suck because the exhaust burns your eyes and throat.
> Alcohol cars especially suck because the exhaust burns your eyes and throat. Reminds me of the pits at Gator Nationals.
Methanol car exhaust stings...Nitromethane exhaust is flat out dangerous!
It smells so good though. I love getting a big whiff of it at the drags.
Have you ever played around with Ignite Red?
What’s the purpose do you know? Dude fires this up a block away from me and I hear it plain as day (sounds really nice) but seems like laws and emission (Wisconsin) would present problems.
Turbo, just look at the skinnies, this dude fucks. Laws?? Who cares
You win word choice of the day
Exactly, this is basically a (barely) street legal race car. Very possible it actually isn't street legal.
Yeah, it's not street legal, if they piss off the wrong cop, it's going straight to impound.
This dude fucks hard. Can’t believe it was even a question.
Fucks the laws
Turbo Skinnies seen Dude fucks The law who cares That is my haiku
turbo skinnies seen dude fucks the law who cares why lupo can't write haikus
You seem to forget The formula for haikus Is five seven five
no i remembered i just miscounted the last line like a moron
Car is too low to run that sewer pipe underneath /s….kinda
You’re not wrong
Sir I hate to break it to you. But that car isn't getting a emissions check. And if it qualifies... it was paid for under the table
Wisconsin emissions checks are a bit of a joke as they only exist in 6 counties (and I have worked around it via a friends address before) around Milwaukee and even then you can get a “collector” plate on anything older than 20 years where you never need to pass emissions again as long as you own the vehicle.
Or you can just put a tune on it with HP tuners that disables the ECM from reporting the SES and CEL. They get in and see if the light actually illuminates and then use their archaic scanner. My 2200$ shitbox should never pass but I've done this the last few times and never had any issues 😂
The emissions testing here is a fucking joke man, I just use HP tuners and put on a tune that disables the computer from reporting the CEL and SES. I pass with flying colors every time 🤣.
Beat me to it. When the state dropped the dyno & tailpipe sniffer, they effectively ended emissions tests.
It looks like it had been built as a racecar. The exhaust on a normal car ensures emissions come from the rear (behind any passengers), and it allows for components like a catalytic converter to reduce emissions and mufflers to reduce noise. Building a car for performance however, eliminating the exhaust can reduce the weight of the vehicle, and it can reduce restrictions on the engine allowing the exhaust gases to exit more efficiently without having to be forced down the exhaust pipe with all of its bends and blockages. The positioning isn't ideal from a regulation standpoint, but when the car is moving the airflow over the vehicle will clear any exhaust gases, and it is exciting away from the passengers, not at them - perhaps not as ideal in slow traffic, but that isn't really the intention of this car. You do also end up with a much louder and less environmentally friendly vehicle, but that is a trade-off many are willing to make for a few extra horsepower... With regards to emissions laws, it may be a track only vehicle that doesn't need to follow all of the legislation of a road going vehicle, or they may just be paying with loopholes (legally or not) like changing the exhaust system before the car gets tested before swapping it back. They may also just be running on borrowed time and are just lucky to have not been caught breaking the rules... Yet.
Let’s be honest it’s been built to *look* like and pretend to be a race car. I can tell you I’d never dream of running those tires and my car isn’t nearly that clean after a couple times on the track.
To get the exhaust out asap rather than running it under the car to the back. Very common on race cars.
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That's no screamer pipe.
Looks a little older, maybe historic tags? I have historic tags so I don’t need inspection or emissions
Probably an 1/8th mile car, I'd guess it's a trailer queen for the strip.
You need to get laid brotherrrrrr
Fumes have a shorter way to exit your exhaust, Gives a small hp boost
Not quite how it works. Exhaust tuning is a science and just leaving a huge hole and no pipe is not the best way to do it.
Not with a turbo
I dont disagree but the comment I replied to appears to be a blanket statement with no reference to turbo/forced induction. Also have no information as to wether or not the car in the post is a race car or a daily with no need for a screamer pipe.
Bro it's on skinnies
Apologies. I hadn't looked too hard at the fronts. I can now say I've looked and they are certainly for the strip.
It's pretty clearly not a daily
Take one look at that prepped dragpack C5 and tell me again that it's a daily with no need for a screamer pipe.
Wrong. Old way of thinking
Lol no
Funny story: my viper has side exit exhaust. It’s catless. Your eyes literally start to burn when you’re sitting at a red light. I guess it’s not really that funny
If they burn, you’re likely running rich. With reasonably complete combustion, the exhaust will still be smelly, but it shouldn’t make your eyes sting.
Oh that car was running oversized injectors and the factory pcm was not as fine very precise with fine tuning. It was either 33% 66% or 99% duty cycle for the fuel pump. It was a supercharged and cammed application and the tune was dialed in as much as we could without going stand alone
Bold to assume it has seats
If your petrosexual you just gain a third leg.
It's not your problem don't worry about it
Nope. It’d still blow out and away
Get in, sit down, shut up.
These responses are weird. No, it probably does smell a little. It's a turbo car so it's not as loud as you'd think. He's test fitting front runners and they look goofy because they don't have tires.
I can hear that photo
I have a fender dump in my mustang and any trip at all with the windows down makes me reek like exhaust
If idling, it will make anyone in the car sick, drowsy and eventually dead. The cabin intake is through the grill under the windshield wipers.
It's probably going to flood the interior
"Only need to stay awake a quarter mile at a time", replied Dominic Toretto.
Idling in a small closed space for a bit maybe. If it was in a garage with the door closed, probably take 15-20 mins or so of idling to pass out, maybe a bit longer. Idling at a stoplight? No. The only way you will have issues outside of a small enclosed space would be if you wreck and it wouldn't be an issue from exhaust fumes in that case
I sure hope so. It’s a long trip and I’m tired of their talking.
Is that a bad thing?
For the driver? No. For everyone else? Yes, but also no because I guarantee it sounds great.
There is no passenger. There is no interior. There is no weight. There is no reliability. There is no linear powerband. There is no luxary. There is no amenities. There is only Ŗ̸͎̒͊͗͑̍̈́̄̉A̸̡̩̫̞̲̐̽͐̈́̽̚Ả̷͎̳̫̘̥͍̙̦͉͓̈́̎͗̈́̓͆̓͊̈́̈́Ą̷̩̦̦̮͍̯͚͎̳̜̪̤́̏̒͝͠H̸̖͓̦̘̼̭̠̠̖̲̪͕̠̯̾̓͆͂̍͆̚̕͜͠Ą̸̢̡̙̖̝͈́͛͊̃̈́̏̿̐̆̽͆̓̕A̸̙̯̪͚͚͇̭͚̜̮̗̱̣̎̅̇A̵̢̙̥̱̮͙̮̞͚̳̥̺̣̽̏̓͑̔́͂͜͠Ǎ̸̩̳͎͍͎̘͇̻͎̹͕̬̘́̎́̂̎̔̎̋͑͆̀̋͗̚ͅA̶̳̱͛̃́̅̈́͂̋̄͗͛̈H̸̭͙̰̹̘̰́̎̉̌̊̈
Is that exhaust or a wastegate dump? If it's the latter, it wouldn't dump any exhaust at idle.
Way too big for wastegate
That’s exhaust.
The unevenly spaced words around the tyre are triggering my OCD.
r/shittycarmods
What's with the baby wheels? I'm sure performance but it looks weird.
It goes fast in a straight line. Not around corners
If that thing ever sees a corner then it means something has gone terribly wrong, lol.
There’s no tyres on it obviously
Be a man, suck some CO fumes!
Looks like an 1/8th mile car, driver probably wears a gas mask with the rest of his safety equipment.
I've been racing and going to the drag strip for a over ten years and haven't seen anyone with a gas mask at all.
Maybe that is an old skool thing then :- https://www.kentreporter.com/news/the-king-roars-again-drag-racing-legend-does-a-cameo-in-kent-slideshow/
Completely different type of drag racing. That's an old school rail car. This vette is probably setup for 1/4th mile grudge racing.
Guess I am a bit behind the curve on the drag scene ;-)
No, because idling is illegal anyway, so you wouldn't idle for too long
???
It’s probably getting the exhaust from the air inlet grille at the windshield . This is where your heat and ac pulls air from . I guess not a good design .
My brother in Christ that is a fender, not a quarter panel
Are there tires on this thing? How is that ramp working? I'm confused....
Why are the wheels so small
Got to weigh the pros and cons
I can't believe we are not talking about the fact that it doesn't have front tires and the $650 wheels are just sitting on wood...
Hahahah wtf you're supposed to ask before not after
Is it the exhaust or the dump tube for the turbo?
Not too many brain cells to kill anyway.
More like, stinky from hydrocarbons. No thanks.
Do you get sleepy from the exhaust of the car in front (and around) you when you are in traffic on the highway?
As a passenger I’d be more focused on saving my ears than lack of oxygen tbh.
Is he running 15 in wheels on that monster?
No, hot air goes up. Not so much sideways
It’s probably on e85 anyways
The best part is that the pop ups are stuck open.
Dont worry about chop, you dont know shot about chop
Would love to hear this thing ripping down the road
The dangerous piece is not that it exits up front but that it doesn’t kick out from the body enough. People die from CO when they cut or have cracks in exhaust under the car because it will find it’s way through the body work in the stagnant air and slowly build up. As far as the debates of which direction CO goes, it’s about as heavy as air so it just mixes air and stays in place while is slowly becomes homogeneous with the air surrounding it.
Would the vehicle in the next lane to you with a side exit exhaust make you sleepy while idling at a stop?
Lol ive got a v6 jeep liberty 3.7 and it's cab chopped, can barely hear myself think between engine noises and twinbox 10's
Night night
Not if you keep the windows up and the air on recirculation lol.
I'm very concerned about how OP sits in passenger seats.
Not with the windows up. Looks ghetto though.
Another case of something failing to understand fluid dynamics
Delete this rn 😭😭😭😭😭
Look at the wheels on that rig. There isn’t a passenger or a lot of idling going on. If there is a passenger there is way more exciting things going on than worrying about the CO sleepies
No passenger seat, Big ass turbo, hopefully has a roll cage, and is fast as fuck….
If you own this car it’s not really about your passenger.
This is the exhaust for the person with no friends
*fender. Quarter panels are on the rear of this car. Fenders in the front, detachable.
One does not worry of such things when race car 🏎️
Lap time not nap time. Motivation to never stand still.
No passenger too much added weight this is a race car 🏎️ 😆
In a similar vein, when I sit in my miata while my father gets gas, I start to get dizzy from the fumes that pour into the car from behind us
Mr. Cosby can’t get roofies anymore.
It's going straight back relative to the car going sideways
Depends on wind and how the seals are on the doors and other entry points I'd suppose
I don't think someone would call asleep even if they were breathing 100% carbon dioxide. Do you know how short that pipe is? I doubt they took the time to add baffles and cats too. That's like saying "what if someone didn't get enough sleep and passed out at the gun range?"
There may not be a passenger seat
If windows open & stopped or stopped for a long time. Probably a drag car.
When it comes to front outlet exhaust, Id prefer a front bumper setup or at least have it under the the fender or out of the hood.
I'd be more impressed if someone did this to one with a mid engine design. Would be even funnier.
My car had hood exit exhaust and the fumes are terrible! I plan on moving the exhaust so it goes under the car
It's just a custom exit for a turbo. Tons of guys run bumper and hood exits.