I own a 1990 Turbo II

I have the following modifications:

Racing Beat Downpipe
Racing Beat Dual Exhaust
255Lph Walbro Fuel Pump
HKS FCD
Turbo Timer
Cold-Air Intake*

* - coming soon

Now I know the 13B loves fuel, but what sort of barrier will I have with the stock fuel system? Last thing I want the car to do is crater on me.

Boost should be around 11-12 psi as it's not electronically aided.

Just how reliable will the motor be at this level? Assuming I drive the car rather hard at times.

 

It varys......there is no way to tell you how it will hold up. My setup was 3" dp, HKS 3" single side from dp, 680cc secondarys, 3rdgen fp, fpr, fcd, TID mod and TB mod. When i dynoed my a/f ratios were mid 11s all the way across, my boost was about the same 9-13psi and it still went. When it decides to go it will, mine help up for about a year of daily driving and im not a soft driver. So if its a used engine then i don't think there is a way to tell how long, if its a new rebuild then it should hold for some time.