Estes

iTrader: (1)

When should I be seeing full boost on a turbo set up. I have it set to 6psi and just wondering if you only see 6psi at high rpms. I see boost quickly, and it builds up to 6 and stops, but it just takes a minute. Small leak possibly or is this normal?

SippiSpeedhawk

iTrader: (21)

Some details on your setup would be useful.

Estes

iTrader: (1)

Sorry. One 72mm Turbo. Unsure of A/R, Tial Wastegate/6psi. 6.2liter LS3. Upgraded fuel system able to support proposed 750hp. No cats, or muflers.

Sluggish

iTrader: (10)

You should be seening full boost at around at lease 3000 rpm with that motor and small turbo.

Fbodyjunkie06

iTrader: (10)

This, your drive pressure will be a lot higher with that turbo than a LS1 would which will help build boost very quickly but it will also fall off faster too. Does it jump to 6 then flatten out around 4-5 psi?

Estes

iTrader: (1)

No, it gets to about 4 real quick and then slowly builds up to 6. I can't remember exactly what rpm it gets to 6 at. Maybe 4500 or later.

Fbodyjunkie06

iTrader: (10)

If you suspect a boost leak they make a smoke machine that pumps through the intake tract and can identify a vacuum or boost leak.

Edit added: My car will jump to 9psi really quick then at around 4300-4400 it hits 11-12.

Estes

iTrader: (1)

Thanks, judging by your quick 9 and then up to 11-12 things on my end are normal. Sorry, I'm new to boost. Learning quickly on this sight though. Thanks again.