yeah they love the brakes and are having no issues with them yet. see the original spec can be had mostly from tuning. Paul from Mazmart introduced me to Dr. Iannetti last year. way cool

 

Wow. That's only 12HP more than the stock Renesis at the crank... and with a whole new ECU, too. I suppose that the curve could be a lot broader though, peak HP isn't the whole story. Kind of makes me feel good about my CZ :p


-MD

 

That concurs with the Conversation that Marietta 8 had with the speed source folks at Road ATlanta. M8 dynoed 204 and Speedsource said they were not much more than that. My point in this thread was to clarify that chasing HP gains in NA form was a lot of energy with good but limited results. After the usual bolt on's --intake(REVI), high flow cat and or catback, lighten flywheel,plus maybe a tuned cz unit, newest plugs and flash then thats about it. After that you need to concentrate on the soul of the car--- handling. Im talking about a daily driver car that see's the track and or autocrosses 4-5 times a year. You know us regular guys with credit cards!
I agree if Racing beat is not showing much gain with their ecu mods(they have by far the best set up to research this) then I guess I need to let go of that wish. Maybe a better MAF will at least give people some consistancy between cars.
Good conversation guys!
Olddragger

 

while I don't expect to squeeze much more peak HP outta the ECU, there is still alot of potential in modifing the ECU in terms of power band and economy. I could care less about peak HP numbers, but a fatter midrange and better fuel economy is reason enough to see what kinda fun a stand alone could be.

Average power wins races, ask Speedsource.

 

Good luck. if you are going to try it, go for it. Honestly from the hp gains I have seen from numerous CZ users it's a lot of top end hp gain. Tq. gain didn't seem as substantial. I think even with all the intake, exhaust, hi-flow cat, ECU tweaking, even porting you are not going to get loads of midrange. That is one thing I really like about my car now is the much greater push/acceleration I get in the midrange. I was looking for more low end/mid range power for this car & the Greddy gave me that. I too would rather have larger midrange, than top end.

 

Maybe Mazda's R & D or RE-A will make some power break-throughs in the near future?

 

You just keep smoking that stuff, you'll be fine.

 

fi= forced induction in this case

 

apparently Judge Ito was able to take his 'bone stock' RX8 way higher than the advertised HP....though he could never prove it.

 

Judge was smoking too!
OD

 

I wonder if focusing on reducing drivetrain lost is the next step for those of us that do not want to go the FI route yet? We are getting 15-to 20% lost from what I understand. If we could reduce that by just 5% thats a little over 10 horses right there. I know its off topic but Ideas? Light wheels--expensive, red line in gearbox and the rear end, light flywheel(allready mentioned) underdrive pulleys(not worth it per others). So where the hell is the drag in this drivetrain?
Olddragger

 

FI=Forced Induction ala Turbo or Supercharger. Also Nitrous is an option.

Olddragger,
I honestly don't think we are suffering a 20% drivetrain loss. We don't have 238 hp on "normal/stock" tune of the engine. The acceleration #'s don't support it. The dynos don't support it. I think that is how CZ is getting the large hp increases with his piggyback unit vs. something like an S2000 that claims 240 hp at the crank & puts out a real 200-205 whp. The voltage irregularities in the MAF, the need to meet stringent emissions has taken a toll on our engines. A lightened flywheel is only freeing up a few hp. Pullies did nothing for me. Even if we changed out the gear/differential/motor oil I could only see a few hp opening up. I did the tranny oil already.

 

Yea you are probaly right. i always thougt that was a high percentage for a 2 wheel drive car but im not an expert. I think I will just steal Marieata 8's maf when we all go to barber to meet and see the speed source folks(he dyno'ed 204 with the same mods as I have)! I must continue to remember that this engine is only 2 yrs old. Things will come in time. Put that smoke down RP and get that dang axial sc ready dude. I'm not getting any younger here!
I do think a little exhaust port work with a good high flow cat/midpipe and the stock cat back( for reduced sound) may gain another 10. If we can get the maf and ecu stable and out of the constant learning mode it seems to be in. I swear it adjusted to my pro lite flywheel after 1 month!
olddragger

 

You see you get what you deserve. All you guys refused to worship the Weber God. Now suffer. :p

 

thre 's a sticky thread at the top of the tech forum id like you to join if you have some acceleration numbers and a formula to prove that point?

 

Sure, I'll check it out.

I noticed you are from Oregon. Are you coming down to Sevenstock ?

 

yep