quick timing ?
06-18-2009, 11:38 AM
#1
Staging Lane
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quick timing ?
Would being a tooth off on a 214/220 559/564 111.5 camshaft in a 05 gmc z71 with a L33 5.3, pac 1218, comp 7.4, tt3000, long tubes ory single 3" exhaust have the same performance as the stock camshaft?
06-18-2009, 11:47 AM
#2
Staging Lane
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Forgot to mention tuned by nelson already got a retune he said that is as much timing he can give it without having the truck there. i live in chicago so thats not happening. Took the truck to the track and ran 15.2 with the stock cam and a 15.1 with the new cam im lost any ideas?
06-19-2009, 10:46 AM
#4
Wouldn't shifting the camshaft timing just move the powerband of the cam? Advancing it putting the powerband lower in the rpm range, opposite for retarding it.
I would expect to still see a greater performance gain, unless it was retarded 4 degrees and on a stock stall killing its power gain.
I would expect to still see a greater performance gain, unless it was retarded 4 degrees and on a stock stall killing its power gain.
06-19-2009, 11:22 AM
#5
Wouldn't shifting the camshaft timing just move the powerband of the cam? Advancing it putting the powerband lower in the rpm range, opposite for retarding it.
I would expect to still see a greater performance gain, unless it was retarded 4 degrees and on a stock stall killing its power gain.
I would expect to still see a greater performance gain, unless it was retarded 4 degrees and on a stock stall killing its power gain.
Advanced cams offer more low end torque as well, so maybe he's blowing the tires off the line.
06-19-2009, 01:40 PM
#6
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Exact opposite its a dog till 4k i have a 3000 stall and it wont even spin the tires a lil when i floor it. stock cam it used to go up in smoke.
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06-19-2009, 03:23 PM
#8
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Its dot to dot i already double checked last night im thinking i should advance it one tooth and see what happens the cam has no advance ground in to it see if that will bring my power range down.
06-19-2009, 03:50 PM
#9
AhhH! I thought it was a tooth off. I think something else is up. Did you make sure you were at zero lash and proper preload?
Do a quick compression test -- low compression can mean your valve train components are mistuned.
I also assumed the 111.5 is lsa? Do you know the ICL?
Do a quick compression test -- low compression can mean your valve train components are mistuned.
I also assumed the 111.5 is lsa? Do you know the ICL?
06-19-2009, 04:33 PM
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ICL is 110.5 and lobe seperation is 111.5 does that mean 1 degree of timing ground in? Im new at this im still learning. This cam was designed for a trailblazer ss from speed inc they ground it for a ls1 so the cam sensor would work. Could that be my prob they said it should work great in my truck.