running t28 without boost control

[crsj333]

Does anyone know if it is safe to run a t28 without a boost controller? My brother's turbo is shot, so he bought a big t28. The t25 s already removed, but he neglected to get a boost gauge or controller first. i assume it would be fine if he puts the boost control selenoid back in but wanted to check first.

Thanks,
Chris

 

[AdrenilineCrash]

well stock you car comes with a boost controller that you cant really customize. so yes. you dont need an aftermarket one although theyre much better than the stock junker.

-mike

 

[truwarrior]

I'd buy a controller for that. It's a beast compaired to the t25. I'm running a t25 with no boost control and I'm pushing 16-17 psi.

 

[WhiteCharisma]

Originally posted by truwarrior
I'd buy a controller for that. It's a beast compaired to the t25. I'm running a t25 with no boost control and I'm pushing 16-17 psi.

17 psi, no boost controller, sweet dude how r u duin that ????

 

[truwarrior]

I guess that's when the stock controller opens the wastegate. I wouldn't run more then 16 psi though. I'm kinda pushing it to it's limits. The boost dies off to about to 12 psi by redline though.

 

[crsj333]

Thanks guys. He ordered a mbc yesterday with a boost gauge, it will just take a few days to get there and he's anxious to try out the new turbo.

 

[WhiteCharisma]

but the stock boost controller is set at 8psi max.. did u bypass something??

 

[truwarrior]

no it's not, u must have a boost leak.

 

[AW4G63]

Originally posted by WhiteCharisma
but the stock boost controller is set at 8psi max.. did u bypass something??

I nail 14-15psi and bleed down to 12psi every time I punch the gas. Its your BOV if your stock.

 

[WhiteCharisma]

yeah im bone stock..stock 2g BOV suck ass ....so what is the actual stock psi???

 

[doodie]

11-12psi after hard intercooler pipes + BOV you'll see around 14-15psi

 

[DSMgurlie]

Originally posted by doodie
11-12psi after hard intercooler pipes + BOV you'll see around 14-15psi

I'm at about 15 psi too on my T25 with no boost controller.

 

[Wikkedson]

You could run a hose straight from the pressure source on the turbo to the wastegate actuator. This will give you the lowest boost setting possible. Should be 11 or 12lbs with a t28.

 

[crsj333]

Thas sounds like a good idea, but it turns out that he did not get all of the gaskets he needs. He bought the exhaust manifold gasket set, and planned on using the old gasket for the O2 housing to the turbo. Any opinions as to who would have the best price for the turbo to O2 housing gasket? My local parts store dosen't sell them.

 

[WhiteCharisma]

ur gonna have to go to the dealer or ur local performance shop, im sure they will make you one.......another way less expensive alternative go to the autoparts and get a tube of RED high temperature silicone it works wonders, and holds up to 500 degrees...

 

[WhiteCharisma]

im gonna change my blowoff valve,i found this dude that can get me a type S for 100 bux!,is that a good deal or wut...do they have mounting flanges for the stock itercooler pipe???

 

[WhiteCharisma]

wikkedson,that steering wheel i sweet dude,nice...