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Seem to be having problems

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Old 08-20-2006, 07:13 PM
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Default Seem to be having problems

https://ls1tech.com/forums/drag-racing-results/562394-whats-wrong-here.html
Anybody have any suggestions?
Old 08-20-2006, 09:57 PM
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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?
Old 08-20-2006, 10:14 PM
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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.
Old 08-20-2006, 11:34 PM
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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!
Old 08-20-2006, 11:39 PM
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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.
Old 08-20-2006, 11:43 PM
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I was just going to ask what injectors you are running since I don't see them in your sig?
Old 08-20-2006, 11:48 PM
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stock 28lb injectors.




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