what boost limit for track days?
 

How much boost is ok to run for track days? I am contemplating installing a 1.0 bar spring in my 1979 930 and the only mods to the car are the following:
K27HFS turbo
GSF exhaust headers
B&B intercooler
stock Porsche wastegate
stock CIS with no other fuel enrichment devices.
AM I asking for trouble or will a 1.0 bar spring still not be too much for hard track driving?
Need some real experienced users to chime in as I do not want to find out the hard way that this was a bad idea.

Thanks,
Fred

When you leave two black stripes from the exit of one corner to the entrance of the next you have enough boost. :D (Paraphrase Mark Donahue quote).

If you use that 1 bar spring, you need to use 100 octane unleaded race gas, for sure.

I would STRONGLY suggest that you check your AFR's before doing the DE event, too. :)

i ran a 1.0 spring for many, many hard track days (a few years), as do just about every other turbos out there and never had a problem. As steve mentioned, make sure your AFM is right and you use high octane.