NEW UPDATE WITH BETTER VIDEO & DYNO RESULTS! Finally done with heads and cam swap!!!
05-20-2013, 01:09 PM
#63
He has the LS2 Stage 3 TorqueMAX cam. There is more to the differences between the LS2 and LS1 Stage 3 than just the exhaust duration change. The LS1 Stg. 3 you have, has an exhaust valve opening event of 54.5 degrees before bottom dead center. The LS2 Stg. 3 has an EVO event of 53.5 degrees before bottom dead center. The LS2 Stg. 3 has an intake valve close event of 47.5 degrees after bottom dead center where as your LS1 has an IVC event of 46.5 degrees ABDC. The LS2 also has less overlap of 13 than your LS1 has which is 17.
What does this do you ask? Your cam will make for a slightly broader power curve than the LS2 from the added overlap. Your cam also closes the intake valve sooner which will make for more torque under the curve, but not carry it quite as far as the LS2 with it's later event. The LS2 has a later EVO event which will build more bottom end torque and peak torque, but not carry torque quite as far into the RPM range as the LS1's earlier EVO event.
So as you can see they both have their pro's and con's, but if you notice their pro's and con's compliment one another. I didn't just spec these cams ***** nilly, I had a systematic approach. I wanted them to all fill a certain void and not have two cams that perform so close to one another that there is no point in having two separate camshaft profiles.
What does this do you ask? Your cam will make for a slightly broader power curve than the LS2 from the added overlap. Your cam also closes the intake valve sooner which will make for more torque under the curve, but not carry it quite as far as the LS2 with it's later event. The LS2 has a later EVO event which will build more bottom end torque and peak torque, but not carry torque quite as far into the RPM range as the LS1's earlier EVO event.
So as you can see they both have their pro's and con's, but if you notice their pro's and con's compliment one another. I didn't just spec these cams ***** nilly, I had a systematic approach. I wanted them to all fill a certain void and not have two cams that perform so close to one another that there is no point in having two separate camshaft profiles.
, Well I definitely can feel the power all over to be a cam that size!!! Thanks for the info, I totally forgot about the LS2 types. 
05-20-2013, 02:14 PM
#65
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05-20-2013, 07:31 PM
#67
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He has the LS2 Stage 3 TorqueMAX cam. There is more to the differences between the LS2 and LS1 Stage 3 than just the exhaust duration change. The LS1 Stg. 3 you have, has an exhaust valve opening event of 54.5 degrees before bottom dead center. The LS2 Stg. 3 has an EVO event of 53.5 degrees before bottom dead center. The LS2 Stg. 3 has an intake valve close event of 47.5 degrees after bottom dead center where as your LS1 has an IVC event of 46.5 degrees ABDC. The LS2 also has less overlap of 13 than your LS1 has which is 17.
What does this do you ask? Your cam will make for a slightly broader power curve than the LS2 from the added overlap. Your cam also closes the intake valve sooner which will make for more torque under the curve, but not carry it quite as far as the LS2 with it's later event. The LS2 has a later EVO event which will build more bottom end torque and peak torque, but not carry torque quite as far into the RPM range as the LS1's earlier EVO event.
So as you can see they both have their pro's and con's, but if you notice their pro's and con's compliment one another. I didn't just spec these cams ***** nilly, I had a systematic approach. I wanted them to all fill a certain void and not have two cams that perform so close to one another that there is no point in having two separate camshaft profiles.
Justin is a good tuner too. I'd do that for sure Ross.
I would go with a Mickey Thompson 28x10.50" ET Street Bias Ply stiff sidewall slick. With tubes preferably.
What does this do you ask? Your cam will make for a slightly broader power curve than the LS2 from the added overlap. Your cam also closes the intake valve sooner which will make for more torque under the curve, but not carry it quite as far as the LS2 with it's later event. The LS2 has a later EVO event which will build more bottom end torque and peak torque, but not carry torque quite as far into the RPM range as the LS1's earlier EVO event.
So as you can see they both have their pro's and con's, but if you notice their pro's and con's compliment one another. I didn't just spec these cams ***** nilly, I had a systematic approach. I wanted them to all fill a certain void and not have two cams that perform so close to one another that there is no point in having two separate camshaft profiles.
Justin is a good tuner too. I'd do that for sure Ross.
I would go with a Mickey Thompson 28x10.50" ET Street Bias Ply stiff sidewall slick. With tubes preferably.
Cool, When are you getting it dyno
05-20-2013, 10:29 PM
#68
Tubes help keep the tire inflated. A slick with no tube will lose air pressure over time and flat spot if not jacked up off the ground. If you have two sets of wheels you swap out it really doesn't matter though. Some have said it helped with stability down track. I don't think at the speeds you'll be trapping you'll have issues with stability though. Not until you decide to spray it or something crazy like that lol.
05-20-2013, 10:37 PM
#69
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Tubes help keep the tire inflated. A slick with no tube will lose air pressure over time and flat spot if not jacked up off the ground. If you have two sets of wheels you swap out it really doesn't matter though. Some have said it helped with stability down track. I don't think at the speeds you'll be trapping you'll have issues with stability though. Not until you decide to spray it or something crazy like that lol.
