How much boost?

[oehm]

How much boost can you run through a stock 87 TR (with proper injectors, and fuel pump of course) only using 100 octane unleaded gas, and no alky, or propane?

 

[Weazel]

Every car will be different. If you're looking for ballpark, I will go out on a limb and say 20 psi shouldn't be a problem. It will depend on the timing of your chip too. A 22° degree chip would be good for 100 octane I would imagine, and 20 psi should be reachable. But as I always say, 'get a scantool'! Good luck