i want all the hp

[dug06824]

Engine
The D962R comes standard with the new RX-8 based Renesis engine, which puts out 254 hp (in stock form), and 178 ft./lb. of torque. This engine is brand new- a 'crate' engine. This engine is fuel injected and is controlled by a Microtech ECU, which is fully programmable.
what is the reality of getting my 05 MT rx8 putting out 254hp ,is it not going to happen with the stock ecu or is it justv a flash away if we kneel east towards japan . i know this has been beaten to death in the forums but hey if you can buy a stock new crate moter why not give us what we want ..... i know i saw 238hp in print when i bought mine is the answer in the fully programmable ecu...... so what if our cars dont idle

 

[Mikey444]

Meh, big deal . 238 or 254 I still think are engines have plenty of power, as long as I can toss it in a turn I am happy.

 

[KYLiquid]

"After over 200 runs on the DynoTime chassis dyno in West Palm Beach, and a ton of hours of development, we have now nailed the production numbers, mapping of the ecu, and intake manifold configuration.

Almost a year ago, we ran the Mazda Renesis engine on Daryl Drummond's engine dyno, and were able to get 254 hp at the crank.

Today, on the chassis dyno, we are consistently pulling 218 hp at the wheels at 9000 rpm. That is in-line with a loss of 15% with the Hewland transaxle.

5 of the engines are being fitting with the dry sumps and should be back tomorrow, and the remaining 5 will be done early next week. At that time, the engines will be placed in the chassis, and the transaxle/bellhousing assembly can be fitted to the engine. We are getting very close to delivery!"

254 crank HP in the D962R vs about 220 in the RX8
218 wheel HP in the D962R vs about 180 in the RX8

The D962R is a RACE CAR, it doesnt give a lot of specs on the motor....but I would guess its running race gas, that would allow you to advance the timing much more, just the timining advance alone could yeild up to 10hp. It also appears that it has a custom intake manifold, as well as a custom header/exhaust systems....

with just an exhaust and the right tuning, that could be another 10hp on the top end. Who knows that they have changed with the intake system.

I am also willing to bet the car has a better drive train, so that would also let it get higher whp.

The stock rx8 will put on average 180 wheel HP. This car has almost 40 more than that, but the combo of the custom intake manifold, exhaust system, and race gas is a huge part of that....along with the ECU.

I would be willing to bet that the increase in power is almost all at the top end, from maybe 6000rpm and up, i wouldnt be suprised if power below 6000rpm was near stock (or even below stock on the very low end (sub 4000rpm).

If you want more power from the stock ECU and you are set on staying NA....you can get about 200whp (a 20whp increase) while still running pump gas, figure another 5hp if you run race gas and tune for it.

I would bet that their version of the motor would not be streetable. Its not a motor built for stop/go....its made to be started and run bettween 5krpm and 9k rpm all day......never dipping low into its RPM band.

The thing that does suprise me is their crank TQ claim, almost 20 more ft/lbs of TQ ...... thats pretty suprising for NA.

To get around 200whp NA, you would spend about double what a quality turbo system would run (like the greddy kit with all the fixes and an x-interceptor) and the turbo system would give you double the stock hp and almost 50% more TQ

 

[Dalton]

Turbo - way to go

To get around 200whp NA, you would spend about double what a quality turbo system would run (like the greddy kit with all the fixes and an x-interceptor) and the turbo system would give you double the stock hp and almost 50% more TQ

Yep just slap the Turbo on and watch (glare)


(omg)
http://www.turbokits.com/rx-8_turbo_kits.html