Took a second look at my numbers and IDK where my head was when I did the altitude correction. The first run on 6psi would have been 13.97 not 14.2 and the run when it poped would have been 13.2 not 13.4. So I was a little faster than I thought.

 

those numbers are much better i knoew there was no way in hell the car was that slow with that much n20 and boost

 

I think it was still too slow on nitrous. Even having it ramp up the way I did something just doesn't add up.

 

leaky ex valves more then likley, i got those heads apart and started on them, some of the valve seats on the ex side didnt look to good

 

It got beat on near the end that's for sure! I beat on it on the street too and it just wouldn't quit. Till I got to the track anyway...

 

lol yeah it held up though had it not been for that one lean spot ud still be beating the crap out of it

 

I have found that ALL 660's are hard on exh valves. I can't tell you how many of them have been through my surface grinder lol - even low mileage 3500's!

 

When I put 3x00 springs on it I found out it didn't have valvestem seals on the exhaust side, I think in an attempt to keep them cooler. Had to fix that so I wouldn't have oil burning in the exhaust screwing with the turbo.

 

his looked good but u could see the carbon building up on them i suspect someone did the seats and then replaced the guides as i found new guides installed and the valves werent 100% true to the seats



im pretty sure its due to the design of the ex port under the seat that causes the engines to be hard on the valve seats but i could be wrong

 

I want to see shrapnel pictures. :-)

 

Turbos AND nitrous!?? This guy is f-ing crazy.. Lol. Hope the clutch doesent chop his foot off so I guess it would be ok to run a 75 shot in my stock 3.1? Lol

 

Clutch? BTW this has been done and over with for a few years...

 

I know, I was jus trying to make a joke lol