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Discussion Starter · #1 ·
I've got a friend saying if we put 100hp injectors in his truck he will have to have studs, what do y'all think?
 

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You should be fine without them.
 

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Only if you see 40+ pounds of boost.
 
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Cylinder pressure is what kills the gasket, which is a combination of static compression, boost, fuel & timing.

Ed
 

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^^ Ed is correct. Boost is a measure of restriction, you could have less boost, but a lot more air being stuffed into the cylinder, that's what porting and polishing does, among other mods that increase air flow. On the flip side, if you have a lot of air restriction, you could be pushing 80 lbs boost and getting less air in the engine than a different setup pushing 50 lbs boost, This is just for arguements sake. The cam grind also has an effect on cylinder pressures, and of course fuel injected. Etc....

I was running up to 45 on stock head bolts, unmolested. I have head studs now just for peace of mind, but I am willing to bet the stock head bolts and factory head gasket seal would still hold what I have in my sig. My turbo will hit 52lbs before the waste gate opens properly where it then sits at 47-48. Something I need to look into.
 

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I hit that on a stock turbo!....... :hehe: :rof
 

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Lol, that doesn't sound very efficient!!! Poor Holset!!!
 

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I'm screwing with you, i hadn't gone over 30 on a stock turbo, which was 7 years ago. I had compounds on when I hit 72psi.
 

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I know I could hit mid 40's with the HX, didn't work worth , but was funny seeing the boost gauge up there!!

I have an HX sitting under the bench that's a prime example of what can happen with it's driven too fast, too hot, for too long, it's basically a chewed up housing, the rest of it ended up in different parts of the intake system, and some of it on the highway, lol.

It's for sale BTW, make me an offer!!! Haha.
 
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