If you do it I will do the same and take it to ISP, just waiting for it to get a bit cooler here in MD its over 90 for like 50 days.

 

Do it and while your at it raise the boost a pound or two.

 

 

So what do you think 21 22 23? I am at 20 now but when its real hot its a bit under that.

 

I'd suggest 20-21. That seems to be a safer spot to stop at. Theres not much on the road that will still be faster IMO so I'd rather be safer.

Also, with headgasket issues popping up, would boosting more psi escalate potential problems for a thicker head gasket?

 

Well from what I have been told, I think inline pro tunes to 21 psi or 500 hp. Other have stated up to 23 is OK but they usally only do it upon request. I would probably not go above 21 psi unless I did a bit of light work to the motor, valves retainers ect.

 

I'm only on a 2mm head gasket with stock bolts right now at around 18 psi... I'm at my limit IMO. I do have a full built suupertech head on the car right now though.

The car is soooo much faster at 18 psi vs 14 psi..

 

I told you so, I brought mine home from the shop yesterday on 12-14PSI and it just felt blah. I got home and enabled the boost control again to 18PSI for now and it was a night and day difference. When I get the battery problem solved I am going to shoot for 21PSI for the street which should put me at 510WHP - 530WHP based on my last tuning session.

 

Yep, did some pulls this morning on the way to the golf course...
Car was sooooo much fun at 17 or so psi.
The datalogs looked awesome when I got home also! I had no knock over 1 volt on any pull and AFR's were right where they needed to be. (11.3-12.0)

 

Have videos been takin yet or did I miss that part