Gtech times for my car....any input?

[Z28Driver]

Borrowed a gtech and gave it a couple runs tonight, let me first tell you about my car:

Pros/mods: 15PSI, Ford powerstroke intercooler, Cold air intake, full tank of 100LL, 29k original miles, rest of the car is stock to my knowledge

Cons: Granny street tires can't lauch with any boost, bad 02 sensor(haven't put the denso in yet), full tank of gas, 4200 feet alt.

1st run:
No launch at all, slight uphill = 15.0@don't remember mph

2nd run:
Reved it up a little bit on the lauch with no boost = 14.6@100.7mph

3rd run:
Same 14.6@100.7mph

4th run:
Lauched with 1 pound of boost = 14.7@101mph

5th run:
Lauched with 3 pounds of boost spinning all the way = 15.2@don't remember mph

I don't think it's that bad considering my altitude of 4200 and the fact i can't launch it with any boost if i want the tires to hook.

 

[turbo nasty]

Times sounds right to me ...now w/ that octane and a better IC you are short changing yourself on boost. I could get 16 PSI bone stock w/gutted cat, 93 pump gas, K&N and chip. So try adding 1 lb at a time.