If you are on the stock studs I would not try to go higher than 32psi. I have known a bunch of people taking it that high with no problems on the stock studs. From reading on the forums it sees that most the people I see attempting 35psi on the stock studs end up lifting the head. I guess that at that point cyl. pressure is just to great.

If you are looking for more power. The wmi ,your planning on using, will help you get it. Just don't go for to much torque on that stock block (as I am sure you know). I gained about 70 whp and 50 wtrq at peak gain. I have pics up on my thread called HFS-3 love

30psi is good. No point in pushing it anymore...

 

According to his mod list, he has ARP head studs.


-Bink

 

lol I just noticed now that you said it...

Turn it up to 37 and tell up how she feels . J/K I think that it would make to much torque at that point. You are now not limited by what the head can hold as much as the bottom end. I would worry more about the rod bolts etc.

 

I think im just going to do 30PSI n call it a day.. untill i build the motor and stuff

 

Bink, do you monitor EGT? It's tough to make big power, particularly on pump, on a Black without running hotter than 1650F. I would imagine that the guys putting down 600 whp are way past that. The key to not cooking the turbo is limiting the high EGTs to short bursts so that the components don't actually reach those temperatures.

 

It isn't necessarily a bad idea, you just have to remember you are going to be out of the turbo's effeciency.

 

Out of an FP Black's efficiencies range? I think not......


-Bink

 

^

I missed that part. For some reason I was thinking stock turbo.

 

Word


-Bink

 

I like more boost, slightly rich afr (12.0 - 12-8 to 1), then time it 1 - 2° late of peak power.


This is with no limit to octane

 

Wow everyone please step away from the laptop!

Taking advice from ppl that blow motors on FP blacks at 27 psi lmao.

Go pay for a tune and be done with it.

.02

 

I like your thought..

Less * is better then boost but to much of anything can be a bad thing>I would try to have a equal balance..If the block is stock I would run 28 to 30 psi max with lower * maybe 10 to 11* but then again your not gonna make lots of power like that.

 

Im at 35psi with stock block. I have head studs though.

 

u can a friend of mines is made 515whp(DYNOJET)stock block+meth but u have to change the headgasket but timing is key how aggressive your car do run

Mike/MiTech

 

Finally a somewhat decent post in here.

Not so much 10-11... but just tune it right.

My ix runs hta 35r at 30psi all day stock block with 14* up top with room for more but on pump gas its a gamble. The key is to make sure you are running quality 93 oct. Not some hole in the wall gas station that has not seen a truck in 3 weeks