80 series overboosting (1 Viewer)

[GotAn80]

I just recently bought a 1991 80 series and am unfamiliar with overboosting, is it bad for my engine? Is it something I can do on a daily basis? Is it something that shouldn't even be happening?

It has a boost gauge and it starts overboosting at about 15 psi and I've had it up to 20. Any help is appreciated!

 

[GotAn80]

I just recently bought a 1991 80 series and am unfamiliar with overboosting, is it bad for my engine? Is it something I can do on a daily basis? Is it something that shouldn't even be happening?

It has a boost gauge and it starts overboosting at about 15 psi and I've had it up to 20. Any help is appreciated!

Forgot to mention it does have an aftermarket intercooler

 

[AussieHJCruza]

It's probably been hopped up. If it's still running the stock turbo it won't be particularly happy but you won't hurt the engine (presume a 1HDT) with 20 pounds of boost. A diesel runs cool when it's lean.