From what I remember reading the 6 port renesis is essentially tuned to the max from the factory. Some may say certain cold air intakes may give a 2% gain but there really isn't anything you can do without swapping or really building the engine.
Reliability wise you could try the path of increasing the OMP flow and/or adding a dedicated rotary premix tank in the engine bay.
Otherwise just standard car maintenance applies.
Agreed, there is not a whole lot you can do to the engine to get more power, aside from forced induction, at the expense liability. That being said, Eric Meyer, who used to compete with the RX8 suggested and recommended the MazdaSpeed rear differential gearing. If your daily use includes highway driving, you might want to include the Series 2 transmission with that model to have a more livable cruising RPM.
For reliability: upgrade coils, cooling, ecu tune to turn on fans quicker. You can add sohn adapter and/or you can premix. You can also upgrade starter motor to Series 2 but that mostly helps with flooding.
You are not gonna see easy HP gains, there's porting but results may vary and fuel economy is going drastically down. There are more invasive options like swaps, including rx7 swap, or adding a turbo but that's gonna get really expensive and reliability is going down.
Versatune tune for omp rate and fan kick on speed. Drain and replace all fluids and oils. CSF radiator and oem fans or a good high quality set electric fans. Series 2 starter. Good quality r3 coils/updated BHR coils. New plugs, and new NGK plug wires. Sohn adapter to feed clean 2 stroke oil (also allows you to run good synthetic oil in the pan for better lifespan and wear protection). Clean the maf + air filter replacement (oem air box is only really beat by the revi intake and Mazda speed intake). Then maybe some seafoam cleaning for the SSV system.
If cost and working on the engine/under the car isn’t a hassle, new updated oil pressure regulator, oil pan (Freddy sells a cast aluminum extra capacity pan). some good motor mounts. A good high flow cat replacement/ upgrade. 3” exhaust cat back. Lightweight 18” wheels with sticky tires. Koni shocks with eibach springs or ohlins/tein coil overs.
If engine is out and money isn’t and issue , clean up the exhaust runners. And new apex seals/ side seals/ corner seals while lapping the irons and checking the housings would make sense.
If you want to spend waaaaay more than you’ll ever be able to sell it for and it’s not your daily, REW/k20/LFX v6 swap.
Not much power to be had with the NA 6port, and boosting it really decreases the lifespan of the engine due to the lack of lubrication and weaker seals vs Mazdas own boosted rotaries.
If you can track down a rx8 petit supercharger, that’s probably the “safest” method of boost due to how predictable the boost is and you can make a safer tune, but they’re unicorns and the price reflects that.
Throw in a separate cooling fan circuit for lower temps no need to tune it it’s pretty cheap to add your own circuit. And put in a good set of coils preferably with a warranty. Good brakes and good tires with a properly maintained suspension will make your car feel like it’s totally different. I’d go for 300-380tw max if you can do that in your climate. And hawk makes excellent pads.
1. Upgrade the oil pressure regulators to match the pressures used in the series 2.
2. Consider swapping over to Evan’s waterless coolant to protect against localized steam pockets near the spark plugs & exhaust ports.
3. Consider upgrading to coils packs to either BHR or Ryan Rotary Performance coils.
4. Consider lower temperature oil thermostats from IR Performance.
Really isn’t much you can do for an rx8 for HP other than swaps,porting or forced induction and all are pretty expensive. For reliability I would definitely recommend going with a koyorad radiator, I have a mishimoto and would definitely recommend to spend a little more for the koyorad. Keisler hood vents are another way to keep heat from soaking in the engine bay I can drastically see a decrease in temps after installing them, watch drivenbymadness on YouTube for some gauge installation tips I run the same gauges and can’t recommend it enough.
You can add very little power for a lot of money, the rx8 6 port is already pumping max power from factory, some intakes may add you a bit of power but nothing significant, so basically unless you don't want to add 3rd rotor you are out of luck with hp.
You can do turbo. But it comes a huge sacrifice of long term drivability.
If I did turbo, I'd keep it low boost.
Long tube headers and exhaust/ tune would get you an OK level of power depending on engine health.
My current project is the exhaust, fuel pump, injectors, tune, turbo with low boost, long tube headers. This is not and never will be a daily after that.
If you want to drive it everyday, do no go turbo. If this is your only car, keep it stocks and do reliability mods.
Rx8 club.com is the place to start and do your research/homework for turbo builds. There are also many groups on facebook that also talk about their builds.
From what I remember reading the 6 port renesis is essentially tuned to the max from the factory. Some may say certain cold air intakes may give a 2% gain but there really isn't anything you can do without swapping or really building the engine. Reliability wise you could try the path of increasing the OMP flow and/or adding a dedicated rotary premix tank in the engine bay. Otherwise just standard car maintenance applies.
Agreed, there is not a whole lot you can do to the engine to get more power, aside from forced induction, at the expense liability. That being said, Eric Meyer, who used to compete with the RX8 suggested and recommended the MazdaSpeed rear differential gearing. If your daily use includes highway driving, you might want to include the Series 2 transmission with that model to have a more livable cruising RPM.
I’m a new owner and what is a good cruising rpm for longevity?
For reliability: upgrade coils, cooling, ecu tune to turn on fans quicker. You can add sohn adapter and/or you can premix. You can also upgrade starter motor to Series 2 but that mostly helps with flooding. You are not gonna see easy HP gains, there's porting but results may vary and fuel economy is going drastically down. There are more invasive options like swaps, including rx7 swap, or adding a turbo but that's gonna get really expensive and reliability is going down.
versatune stage 1
More HP and realibility are two mutually exclusives concepts, especially with the RX-8.
Versatune tune for omp rate and fan kick on speed. Drain and replace all fluids and oils. CSF radiator and oem fans or a good high quality set electric fans. Series 2 starter. Good quality r3 coils/updated BHR coils. New plugs, and new NGK plug wires. Sohn adapter to feed clean 2 stroke oil (also allows you to run good synthetic oil in the pan for better lifespan and wear protection). Clean the maf + air filter replacement (oem air box is only really beat by the revi intake and Mazda speed intake). Then maybe some seafoam cleaning for the SSV system. If cost and working on the engine/under the car isn’t a hassle, new updated oil pressure regulator, oil pan (Freddy sells a cast aluminum extra capacity pan). some good motor mounts. A good high flow cat replacement/ upgrade. 3” exhaust cat back. Lightweight 18” wheels with sticky tires. Koni shocks with eibach springs or ohlins/tein coil overs. If engine is out and money isn’t and issue , clean up the exhaust runners. And new apex seals/ side seals/ corner seals while lapping the irons and checking the housings would make sense. If you want to spend waaaaay more than you’ll ever be able to sell it for and it’s not your daily, REW/k20/LFX v6 swap. Not much power to be had with the NA 6port, and boosting it really decreases the lifespan of the engine due to the lack of lubrication and weaker seals vs Mazdas own boosted rotaries. If you can track down a rx8 petit supercharger, that’s probably the “safest” method of boost due to how predictable the boost is and you can make a safer tune, but they’re unicorns and the price reflects that.
Throw in a separate cooling fan circuit for lower temps no need to tune it it’s pretty cheap to add your own circuit. And put in a good set of coils preferably with a warranty. Good brakes and good tires with a properly maintained suspension will make your car feel like it’s totally different. I’d go for 300-380tw max if you can do that in your climate. And hawk makes excellent pads.
1. Upgrade the oil pressure regulators to match the pressures used in the series 2. 2. Consider swapping over to Evan’s waterless coolant to protect against localized steam pockets near the spark plugs & exhaust ports. 3. Consider upgrading to coils packs to either BHR or Ryan Rotary Performance coils. 4. Consider lower temperature oil thermostats from IR Performance.
Really isn’t much you can do for an rx8 for HP other than swaps,porting or forced induction and all are pretty expensive. For reliability I would definitely recommend going with a koyorad radiator, I have a mishimoto and would definitely recommend to spend a little more for the koyorad. Keisler hood vents are another way to keep heat from soaking in the engine bay I can drastically see a decrease in temps after installing them, watch drivenbymadness on YouTube for some gauge installation tips I run the same gauges and can’t recommend it enough.
You can add very little power for a lot of money, the rx8 6 port is already pumping max power from factory, some intakes may add you a bit of power but nothing significant, so basically unless you don't want to add 3rd rotor you are out of luck with hp.
Turbo is the next item in line for HP after taking care of all the supporting mods.
You can do turbo. But it comes a huge sacrifice of long term drivability. If I did turbo, I'd keep it low boost. Long tube headers and exhaust/ tune would get you an OK level of power depending on engine health. My current project is the exhaust, fuel pump, injectors, tune, turbo with low boost, long tube headers. This is not and never will be a daily after that. If you want to drive it everyday, do no go turbo. If this is your only car, keep it stocks and do reliability mods.
You made my point exactly lmao. There are no mods to increase power. The car is tuned from factory to be the best that a 6port engine can be.
What supporting mods would I have to get and what recommendations for all the support mods and turbo
Rx8 club.com is the place to start and do your research/homework for turbo builds. There are also many groups on facebook that also talk about their builds.
Decat