very simple thread


i have a cobalt ss

i had a 2.8 inch pulley
and i have a cobalt addict tune and the boost bypass off cause I thought I didnt need it
and when i dropped to the 2.7 i had problems

i kept loosing boost and i couldnt figure it out


got stg 2 belt still loosing boost

checked entire engine bay for leaks and took supercharger off

no leaks

I then thought to myself lemme try to the boost bypass mod . i tried it and i had full boost again

i took the bleeder/bypass off and looked at the internals and all the platic and everything was cracked and bent and broken

sooo if anyones having boost problems just throw the bypass mod back on

thought id input my 2 cents

 

thanks man

 

anytime? but do you have a cobalt?

 

Where did the boost go from- down to? Did it keep dropping or finally level off?

 

it would level off at some point like the computer was fixing it but it wasnt

the boost would actually flutter out of it kinda sounding like a wastegate

ooo and it was from 17 to 10

it wouldnt peak after i blew it out

 

I just barely posted about why I'm getting such crappy boost, maybe this is my answer

 

so your saying we should plug back in our boost bypass mod?? is that only because you have a tune or?

 

If you get the car tuned properly then boost management is completely disabled and there's no need for the bypass mod. It is very easy with HPTuners

 

^^ something i plan on doin, just dont know wat to do about first gear...

 

not trying to dick but i already said that i had the tune and i was holding boost and then when i went to the 2.7 that i blew the internals out so i had to go back to using the boost bypass mod

 

oo and go full boost

if you can drive which i think everyone on here can by now just learn how to use the power

 

ya, i have cabs, solid motor mount and im lowered, i just may do what u said

 

lemme tell you i have no motor mounts or anything and my car feels amazing with full boost in first gear


ooo and back to the thread
bump lol

 

damn you mike and your full boost in first... well now that my car actually gets traction I"m changing it tonight to see how much I can push and still get traction... but I'm also switching to the 2.5 so lets see how that goes..

 

you better ******* watch your timing and all your ratios your pushing it man

 

the boost bypass mod totally ***** with your a/f. Yes. I gained 4 hp and 5 or 6 tq. but it made my a/f look like /\/\/\/\/\/\/\/\/\/\ during the entire pull on the dyno.

I STILL would not reccomend doing the bypass. Just get hptuners. and compensate for it.

 

hey thats what I do best... leveled out my AFR to around 12.2 so thats all good brought the timing back down to 24 deg... and running a 70%meth/30%water setup so no detonation.... hitting the track sunday and dyno oct 7th.... lets see what she can do...
oh yeah addin a little nitro to the mix for sunday... fingers crossed she don't explode (only using lik 8 oz to 1.5 gallons should be ok) I hope

 

he did... the diapragm in the bypass broke and was bleed boost off (he has a hp tune on a car)

 

that wrx guy got banned.

 

That was quick