The Story begins…
I had a great time at NJMP this weekend. I walked away thinking I have alot to do on the nut behind the wheel and I still do. I was 4-5 sec behind the leader.
After watching some video of other drivers i am really convincing myself that I was really down on power. coming thru the Esses others are shifting 3rd to 4th maybe 10 Ft sooner than me, but they are shifting to 5th at the beginning of the straight. I am not getting 5th at all. Even if i was really bad coming out of the octopus. i would hope to hit 5th by the turn 1 breaking zone.
I still need to make sure i have the right diff in the car.
But I did a compression test last night. I stopped after 3 cylinders
all 3 were reading 130 cold dry and 150 cold wet
that is so low i couldn’t believe it. I ordered a new compression tester just so I could double check. I also ordered a leak down tester. The car runs fine. doesn’t burn any oil. I had a few misses mostly due to low fuel(i think). More results to come this weekend.
History of this engine:
I over heated this at NHMS due to a failed motor mount. I ran a full 1.5 laps with the dash temp pegged at max. I now have bright LED lights that warn of temp and pressure loss.
It seemed to run fine after that, but i soon found that It was pressurizing the coolant and over heating.
Warped head- Took it off complete head rebuild by a very reputable shop. new cam, several new rockers, a few new valves.
this is only the 3rd track weekend on this head.
With the new testers I will run the following:
Compression Cold and Warm, Dry and Wet.
I will also do leak down tests.
If compression stays low/leak down is greater than 5%, then I guess I am pulling out that bad boy for some bottom end work.