It's A LOT faster than stock. I did stay even with a mach 1 the other day. I found out after we raced from a 40 roll that he runs 13.0@109

 

wow thats sweet. i have raced my frinds evo that runs 12.7 and can stay at his rear bumper till 120 then we stop. but thats awd so most of that time was from getting out of the hole

 

nice man i got slaughtered by an evo that had a mbc and a flash. He was running 12.2@112 lol

 

lol i love evos so much capability

 

why cant we be like evos

 

yah iknow i wish we could just add exhaust intake meth and tune and make like 400 hp. well thats the new evo 9s and they have manual boost controler. but still lol

 

o my dream to be an evo killer hmmmmmmmm

 

you should walk the stock evos lol. so you are a evo killer

 

but i cant beat the simple bolt on ones pathetic

 

yea one day we should be able to though. when are after market comes around

 

but it sucks we have to build the engine to get it there but it would be soo worth it to absolutely rape an 11 second evo

 

hell yah. expically if that was from a dead stop. i would be happing just smaking the **** out of a 11 sec evo from a roll. my one frind had a evo that he never ran that could beat the one that ran 12.7 by bout 3 car lengths. but my friend has a 11.6 civic and when he would race the evo from a dead stop the evo would walk him till like high 3rd gear goign into 4th before the civic would pass him. when i was stock he could leave the evo in 5th and beat me from a 40 roll while i was in second. when i got stage to he just had to keep it in 4th. lol that car was sick and was only a few boltons

 

You'll feel a noticeable difference, should be around 270 whp. The tq levels will get the biggest gains by dropping pulley sizes.

 

i read a formula at ecotec forum.. they said:
.1"= 1psi
1psi= 4 hp + 6lb-ft

hope that helps you

 

After a 2.8 all you really get is better tq. HP tops out at about 270.

 

thanks guys i have something to look foward to now lol

 

brian , did you tell slotte how I slaughtered you by 2 cars? HA! Im fasta

 

I know it sucks but tomorrow i will be

 

wrong, me , jmac88 and 06blackssg85 are proof its wrong. You just need the proper mods, mainly methanol injection to produce the numbers we did.

2.5/2.6 plus what you have and meth on a good tune will yield 285+ whp

the fact a handful have done it on a handful of differnet dynos in different locations, using rougly the same mods gives more then enough proof that it is infact realistic and valid.

 

i made 270whp with the 2.7 and i have the stock exhaust. I guess the guy that tuned it is really good.

 

there is a difference between 270 hp and 270 whp friend.

 

That is super, but we are discussing the difference between a 2.8 and a 2.6 not the difference between 2.8 and a 2.6 with meth injection. Also whats a 'good tune' mean ?

For the original poster: Intense did several dyno pulls with difference pulleys and smaller than a 2.8 only got you more tq and the HP was topped out at about 270 whp on there dyno with a baseline of 225 whp.

 

Well... i am meerly displaying that the issue with the smaller pulley is heat related, and in reality, if heat wasnt an issue, the pulley allows for an hp gain just as it would going from a 3.2 to a 3.0

There is no one out there running a 2.8 who has more hp then someone running the 2.6 pulley on an equally good tune.

As for whatsa good tune, well in my case, im running a very vehicle specific tune, we spent 7 hours on a dyno tuning at a world renound shop.

A shitty tune would be adding timing to a gm st2 tune and running a 2.7 pulley. or having the car tuned without a vast knowledge in hpt tuners.

 

x2, big difference!

 

whats the stock pully for GM stage 2?

3.0"