how much boost did it take you to make 600WHP? And on what turbo

 

ARP studs are only rated safely for up to 500hp. Anyone running higher is playing roulette.

 

that is exactly what I had in mind when I was going for my setup.

On the street with 92 pump gas, my high/low boost switch toggles between 350 low and 400 high, with boost by gear setup.

Then I got a race gas map good for around 450 that I flash in for the track. All of this on stock head gasket, with zero headaches so far.

It's a shame that I've always thought the GT30R was capable of 500 on race gas, but the turbo actually maxed out on the dyno..

 

is this confirmed? stock head bolts handle 500whp, so why wouldnt arp studs be capable of higher consistently?

seems weird 500hp would be there rated strength.

 

that's very odd

 

what type of dyno was used? some read low. could be the case. turbo should make more on pump and race thats for sure. but it depends on the reference point being used.

 

It was dyno'd on a Mustang dyno, and I understand that dyno are just used as a reference point. I should have worded my statement more on the line of:

I thought I could get more than just 50 more HP out of race gas tune before maxing out the GT30R.


But either way, I think you got the right mentality/approach to a street setup Turbo S, with 400+ HP on pump, its very fun on the streets.

 

this is such a dumb statement.

thats like saying, "valve cover paint is only rated at 300hp"...... what the hell does HP have to do with the studs tensile strength and stretch? detonation is what lifts heads and stretches studs, and that can happen at any level.

and secondly, these are rated in PSI..... so how did you equate 200,000 psi to 500hp?

 

Because we called ARP and thats exactly word for word what they said. You can't just measure off of PSI.

GT28 @ 25 psi vs a 6262 @ 25 psi, no where near the same. Yes pressure is the same but damn sure not the amount of volume and stress inside the cylinder. Either way, it's what ARP recommended so any other word is obviously luck of the draw and personal experience. Just because we pull 700hp outta the F20C doesnt mean it was rated for it.

 

I'm on stock bolts, 2mm gasket, inline stage 1 kit and run 16-18 psi daily on 91 octane..