I didn't file the rings on this one although I wish I had. It's gonna get pushed till it blows, then it's getting a forged destroked 6.0 and bigger turbos anyways.

I did run it at the track this weekend and managed a new best of 11.09@122mph 1.64 60ft
Also beat a 750hp lightning 2 times in a row so I was quite happy with the truck

 

How hot did you get it? I've made countless back to back 1/8m passes at more boost then that. To butt the rings at 12 there was some more going on unless temps were through the roof.

 

230 but my timing was real high too. I can't remember now but I think I was at 20 degrees. I figured it wouldn't last long, but didn't think it would blow up like that. I went bigger and better too. That's why I have a forged 6.0 now.

 

230 is insane. Also, you fell victim to the timing craze.

I keep my ECTs in the 170-180 range and timing is 15*

 

230 is about 50* hotter then supposed to be....can run 20* but have to have right fuel and motor has to be cool

Pistons based on rear cylinder temps exceeding safe limit and coming in contact with walls

If laptop says 230 your rear cylinders are 250-260*

This is why it's a must to keep motor cool when boosting

 

I hit like 190-195 by the end of the pass. It's set to start pulling timing at 150. So I went from 18* timing to 10* by the end of the pass. Also running the innovate scg-1 boost controller and I haven't quite set it up right. It was supposed to make 18psi and I had the boost cut set at 18.4psi and 100% cut, so when it shifted third gear the boost spiked to 19psi and it automatically dropped boost back to spring pressure which is 13psi.

There's a few things that need adjusting yet but I'm very confident that when its all lined out and the weather cools down it will run low 10s.

 

That explains the low trap speed for what it put on the dyno. I'm assuming you're running gasoline? For me on E85, I don't even worry about IATs.

 

I had a MP112 with a 10% overdrive crank pulley and a 2.6" supercharger pulley. I was pushing it as hard as I could. This turbo with a wet intercooler seems to be working real well.

 

i still pull timing based on IATs and ECT on e85

 

Well, that would be one area we differ.