hey guys, i just ordered an aem intake, red, to go on my black, a nice combination. and a greddy exhaust system. my question is what else should be on my shopping list to keep my car n/a, but to get it to 13's in the 1/4 mile. i know this might be a re-post, but there is no definitive answer out there. should i go with a fly wheel, or lightened rotary or what. ive got a couple grand left to spend, but i dont want to go turbo, cause of the reliabitity issue with the greddy and what not. where should i go from here guys. thanks

 

"i need nos"


intake and exhaust aint gonna do crap... its all for sound if anythign you might be lucky to get a few HP.... get a CZ ecu.... flywheel and 17's.......from what ive read

 

RP Supercat (hi-flow cat) or midpipe (if you don't care about emissions & CEL), lightweight flywheel, and CZ Piggyback ECU. That's about it, unless you want to go nitrous.

 

you can get this GT4 package from this web site or you can buy Stainless High Flow Cat Midpipe or Underdrive Power Pulleys to make your horse up
http://www.srmotorsports.com/RX8_Packages.html

 

I would seriously recommend you not get this. The pullies are a waste of money. I have them, and got a whopping 1-2 hp across the rev range. I also had their hi-flow cat which was a very good piece. The notion of 25 hp from stuff like the pulley, hi-flow cat & exhaust is nonsense. You have the intake, & exhaust. The only other stuff is the hi-flow cat/midpipe, flywheel & ECU. Pullies are a waste of money. We are not talking about V8 pullies with heavy harmonic balancers.

 

I would suggest reading everything you can on the racing beat web site...it has a lot of good information. The two best mods you could have done are the RP Super-cat and the Aluminum Flywheel. I must construe that your are looking for some additional straight line power...in that case you could also look at having the FEED 4.778 gear (Ring and Pinion) installed.

http://www.racingbeat.com/FRmazda4.htm

http://www.rx7store.net/RX8_Performa...ories_s/17.htm

http://www.fujita-eng.com/rx8/index.html


Also Headers do nothing for this car....at least all that have been design so far.

 

Do not buy the marketing hype..... I don't trust them.

If you must get pullies, then get them from UR (Unorthodox Racing) and save yourself a hundred Plus dollars

 

the ur pulleys do make power i did a before after test with them before them in was making 183.4hp after i jumped to 188.6 with a sould 4whp across the whole band if i had a scanner i post both dyno sheets

 

I have that stuff... my SR cat failed about a week ago. So I am installing the RP supercat saturday morning.

 

your going to need a great driver with a lot of practice more then anything...

 

Feel free to post the dyno. I got about 1-2 whp across the rev range. But for the money, I would rather get the RP Supercat.

 

ditto...to pull a 13.9 n/a, driver is gonna be key.

 

im trynna do the same thing ,n/a HIGH 13's...but then i learned long time ago it would be super hard...well i already have exhaust,intake,rp super cat....well goal is to get the lightweight flywheel, interceptor ecu, light weight rims,porting,and headers? for a complete exhuast system and stay bars to reduce wheelhop off the line...dear god if that enough ima be mad haha.....but the the easiest and probably cheaper way is turbo....well these were just IMO..iunno if these really get you in 13's but i just want it anyway
oh that 4.777 gearing but i wouldnt use it becuase i drive freeway alot and high speeds and that would kill my gas

 

The word is that Mazda did a good job of squeezing out just about all that they can.

May I recommend putting the straight-line high-speed dreams to rest for a while. Until a really good aftermarket fuel management system comes along, you really can't tune too much more out of it. Give it another year or two... or three.. There is the interceptor-X but I'm not sure what it'll do for you without a turbo.

If you want a fast straightliner, get an RX7 and mod the hell out of it. You can get that down in the low 11s. The Renesis is an entirely different beast.

I would, (and actually plan to) instead, concentrate on the car's strongpoints - its handling. Get some tokico shocks, sway bars, maybe some lowering springs and give the autocross circuit hell!

Think about it - 40 in first, almost 70 in second... and those upper RPM ranges are pretty darn torquey. As you know, it's not fast off the line but once you get it rolling about 25MPH, its a mean machine and rip through a course. The RX8 can seriously mop up in the Stock B class.

Just my 2 cents.