Alright I am curious who has pushed the bar the most in this arena. I am interested in knowing how well the car ran and the general details!

I am considering S2's on the stock ECU at this point....although JUN 272's could also be interesting.

 

Realistically the Cossies are bigger than the S2's at least from the specs (ramp rates aside). There is at least one person on this board that I know of that has some Revolvers that "work" with the stock ECU. EvoDan2004 I believe is still running them.

 

there have been revolvers on stock ecu. You'll be fine. The car will idle... lope like hell.. but run... thats what matters

 

I may also be considering Jun 272's any ideas with these?

 

for what kind of turbo?

 

This is classified. Something with a T4 flange.

 

If you convert to a ls1 maf you'll be perfectly fine dude.

think about the cams they do.

 

I have been considering ECU+ to utilize the GM MAF control....tell me more. I may go this route again!

 

from the posted spec's of cosworths 272s they are smaller than the S2 cams. less intake lift, and not as steep of of a flank rate.

S2's will work on the stock ecu its been done before.

 

u talkin about the cosworth m2's? if u are what are the spec's? as this is somethin that has been asked b4, but there was no answer

 

MafTranslator (just the regular evo maf translator, not the maftpro) + gm maf = ~$250, can run blow through or draw through, Blow through will require ic piping mod. I've tuned (ecuflash) a few cars with this setup and it does seem to improve idle with big cams when you go to blow through mode. Never had a problem on the stock ecu with cams though, but I've never tried to tune anything larger than 280's.

TTP sells the translators IIRC.

 

Sorry I was thinking the IX cams. @ .050 to @ .050 the Cosworths are advertised as being larger. They also seemed to be measured in the European method rather than what I am used to seeing because where the Cosworth cam card has valve events happening arent typical. I think this coupled with whatever the ramp rates are (I dont have the reverse engineered specs on my work computer) are why even though they claim 255/222 @ .050 Greg is saying they are smaller.

 

I have used:
HKS 272 272
HKS 280 280
GSC 280 280
Cosworth M2 for Evo 8

all on the stock ECU.

 

The M2's do indeed work fine on the stock Ecu. They lope like hell but the idle is pretty strong.

 

cant wait to get my cams! I have seen many people use 280's on stock ecu