that's why i said to get the smallest pulley you can run the tvs safely.....you also might have to lower the rev limit back to 6500 if you go this route. I'm not sure about the Bypass valve being slow though, don't you remember when your car was stock. Ever remember that needle going past 12psi?

 

There is no reason to lower the rev limiter back down to 6500rpms, the car can take 7k NO problem, 7200 with no issues and SEVERAL people have ran 7500 rpm's for a LONG time without any issues, but 7-7250 is considered "safe" on these motors with or without a tvs.

The only problem with the smaller pulley theory is the fact that it creates A LOT of heat and that the OP would have to run methanol injection with a decent amount of water in it to cool the iat2's down, that in return is less methanol which means less timing.

It's a little bit of a trade off but I am sure he would put down more power with a smaller pulley. If the op's head isn't ported I would HIGHLY suggest it because then you will be looking at roughly 330whp with a solid tune.

 

i dont think you read what i said correctly. or you missunderstood. your car will spike boost way past your set level and be very dangerous.

and you blower will spin at that velocity all the time its not very good for it. yes you can get a "safe" pulley but its still gonna spin alot faster than normal an

 

thx Zach and btw i wasn't talking about the rev being turned down for engine protection i meant to keep the supercharger from spinning too fast. I remember going to 2.5" on the M62 + 7K = M62 going out of tolerance. Don't know what it is on the TVS though.

 

To be honest with you people say anything under a 2.8 isn't "worth" it on an m62. I personally agree with this statement. Anything under a 2.8 on the m62 you are create way to much heat and really aren't seeing much gains. Now with the TVS I personally have known people to run the SMALLEST pulley that will fit on that s/c without headaches. There is no reason why you can't run 27lbs of boost right area?? *wonders if he's lurking this thread*

 

Area is and exception to the norm. People shouldnt take his results as typical and expect the same with their runt-of-the-mill, out-of-the-box TVS set ups. It will lead to dissapointment as I have seen with many people.

 

so, a stock motor with valve springs is an exception to the norm?

really?

go sit in the corner.

 

no wonder area is so fast, he's still building power for an extra 1k rpms.

 

He made peak power at 7400 rpm

 

*puts on dunce hat and faces the wall*

I meant your tuning is the exception.

The vast majority of tuned cars that I saw at a local dyno day failed miserably.
2.7" and 2.8" pullied cars with water/methanol, 3" exhausts, etc. putting down only 245-250
TVS powered cars putting down only 280hp and 240tq with big h/e and full 3" exh.
The high number of the day went to a ms3 with only a cobb intake and larger i/c. (298whp 300wtq)

?Que' Pasa?

I've never seen anyone else put down 350+ on a tvs cobalt. IMO the rest of us just fail at tuning.

 

Not everyone posts there results.

 

thats because byan has the only "area tuned" tvs car silly. i just can't wait till i get the tvs on my car. i made, what was it bryan like 230 or 231wtrq?, on a low reading dyno with the 2.8, which i remember you telling me is better than what you got with the 2.7

bryan's tuning=

.....and people think i'm crazy for driving 7 total hours for tuning.

 

i was thinking of driving 24hrs to meet up with him to get a tune if i get a tvs or go ported head on m62

 

I realize that, but I'm just going by what i have seen or read on this forum.

My point exactly.

 

yeah i normally syncronize my trips to topeka with intstalling **** on my car. so, every time i go to topeka, i'll head over to kc and have him tune it and meet up with some other members. last time i went up there me, cobalttc05, revhigh18, and elite cyborg went to heartland park and did some racing

 

well enlighten us then, assuming your redline was still 7000, whats your peak hp # then?

on a completely stock motor (that means never even taking off the valve cover) and 93 octane like most of us actually have, I don't care who tunes it you won't get 350whp except maybe on a really generous dynojet an even that is completely unrealistic

 

area's redline is 8k, just cuz u didnt make 300whp on a tvs doesnt mean ppl cant or is impossible.

 

huh? who are you talking to?

 

we are arguing semantics. I'm not saying I expect to see 350+ out of every TVS powered car. but 280whp/240wtq is a bit on the weak side IMO.

 

I'm so sick of what these TVS threads turn into. People need to quit bitching about low numbers, learn how to tune for themselves by trial and error and not sit in a corner griping on why 1 person makes 340+ to the wheels while another can't break 280.

This forum is so full to argumentative bullshit it's not even funny. I'm not singling anybody out or directing this to any 1 person. I'm just tired of seeing the constant e-fighting because people think they know it all.

 

i'm still just curious who rodimus was talking to hahah

 

prolly to u, cuz hes pissed that u made 30 less whp with just 60s and 2.8 LMFAO

 

would you expect 250whp out of the stock m62 pulley? of course not. how do you make more power throughout the powerband? drop pulley sizes and supporting mods, right?

why expect any more than 300 with the "stock" TVS pulley? 90% of TVS owners are still on teh stock pulley. almost all of the "TVS dyno #'s" threads are on base tunes from ott with almost no individual tuning done. that's it. until there is more time spent on the tuning, then no, you won't see over 300. drop pulleys, do supporting mods and tune like a **** and you'll see well over 300. i imagine i'm there already

 

why would he be talking to me? i got no beef. and no. thats not how much i made

 

i thought u made 260whp?