1987 Holden Commodore BT1 review from Australia and New Zealand

I have just brought my VL turbo about 4 weeks so I don't know of the things that have gone wrong with it in the past..

But... I do know that 2 new injectors have been replaced... there is a slight grinding noise when I let go of the clutch. I think it's the thrust bearing, and I have a knocking sound at the tail shaft, which is the universal joint..

But other than that the car is in great order and doesn't miss a beat.. even after a thrash...

At the moment the car is pretty stock..

It's been re-sprayed canary yellow, has a 2 and a half inch exaust, K&N air filter and a massive inter-cooler (stage 4-6??).

The car is only running at 9 psi of boost.

I want to do a few mods to the car without spending too much money and putting too much strain on the engine.

Can anyone tell me what is the highest, but safest psi level I can boost the turbo?

I was also thinking of putting a chip, port and polish as well as working the cam and an extra injector or bigger fuel pump. Getting a t4 or even to high-flow the turbo.

I don't really know the best combo or how affective the mods are. I might just do them all.. but will that be putting to much strain on it? I have about $2000 to spend.. my e-mail is juddaboy@hotmail.com. If anyone has ideas and can tell me how my car can rip almost anyone on the streets, give me a buzz on a comment or e-mail.

Thank you for your comments..