https://ls1tech.com/forums/drag-racing-results/562394-whats-wrong-here.html
Anybody have any suggestions?

 

Why is my H/C car running high 12s. My best guess it a bad converter/gear combo for the large cam, would this and my crappy 60' lead to that bad a time and mph?

 

You would benefit from a higher stall speed with that cam. I would suggest a 4-4400. Even with the 3500, I can't see why your running that poor down the 1320.

For comparison my previous car was a 225/225 cam only, without a ported TB, running a 3500 stall, and it went 11s@112-113.

What is the DA on your runs? This makes a difference, but I don't think it would be bad enough to make a car with your mods run THAT poorly. And how in the world are you 60fting a 2.1 with a stalled auto There are some missing pieces of the puzzle to be filled in here.

 

DA in Michigan is low. Its just humid at times. You are trapping really low... I'd have someone take a look at the computer. You may have a code set thats making it run in limp mode or may simply need a tune. Did you just swap cams and leave the tune off your old one? I would be taking a look at injector duty cycle as well. Get that thing to hook!

 

The car has been tuned and after talking with the tuner today he is saying fuel pressure. He says the car is running very strong in the 1/8 but injector duty may be running out on the top end or possibly a clogged fuel filter. First thing I'm gonna do it replace the fuel filter since its cheap and easy and I don't know if its ever been changed then if its still not helping I'm going to bring it by his shop so he can take a look at it. 60' times are bad due to so much power and only running on worn 245 Nittos. I'll be ordering some Micket Ts very soon as well as a strew of suspension parts to drop that drastically.

 

I was just going to ask what injectors you are running since I don't see them in your sig?

 

stock 28lb injectors.