Because my supra has almost the same mods as his and I know how well it pulls for the stock turbo at 9-10 psi (given it's not going to beat a lot of newer sports cars on the road, but it shouldn't have that much of problem with a RAM with the mods listed unless there's something wrong with the...
You sure that thing wasn't supercharged or something? I didn't think they were that quick. I've driven them before and stock they're nothing special...?
On 7M's, YES.
They're notorious for BHG's. If it blows and overheats, the AL head probably got too soft, especially around #5 & #6 as this is where the majority of the BHG's occur. That part of the head also runs hotter than the rest of the head as well (EGR) and can aneal even without...
Not to rain on your parade, but the head can and will aneal from just one BHG, regardless of how many miles are on it. As it's a JDM head per what you just said, you do not know it's history.
I suggest calling your machine shop and finding out exactly what they did to the head. I doubt they...
Haven't seen this on here yet...
Have you hardness tested your new(er) head? This should be the first thing you do. If the head's too soft (annealed), then you've just wasted all of your time on that head.
:)
For your sake, I hope the AL is still hard on your new head as it sounds like...
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