Blower Camshaft! Opinions again!!!

[robwclark]

OK guys. I already asked this question in my giant post about my rebuild, but never really got any advice. I will be building a stock ci forged bottom end for my 06 truck. The heads will stay stock for now. I will be using the paxton already on the truck before the tear down. I will get a smaller pully and try to get all the boost the paxton will push(I'm guessing about 8 or 10). My question is: What cam do I run? I know I'm a fag, but I want a massive lumpy ldle!!!!!! I just dont want to lose any power over not using the stock cam. I am fairly certain that I should be able to get a cam that actually helps power. Anyone have any advice on where to even get the cam? Or even exactly what cam has been proven?

 

[Bone]

A long duration cam with a bunch of overlap isn't good with a blower because the boost pressure goes in the intake valve and right out the exhaust port at low speed. What works the best is a cam with little overlap, a lot of lift and duration but more lift and duration on the exhaust valves (since the blower really does nothing to help evacuate the cylinders). With a turbocharged engine, more lift and duration is needed on the intake valve to prevent back pressure (created by the turbo) from backing up into the cylinder.

Hope this helps.

Stinker can help you.

Justin can help you.

Comp Cams has technical assistance.

The one other concern is tuning your Idle. A very big cam will need to be tuned. Split Second makes a cam tuner to adjust Short Term Trim, which in turn adjusts your Long Term Trim.

 

[robwclark]

Every bit of advice I get helps. Thanks

A long duration cam with a bunch of overlap isn't good with a blower because the boost pressure goes in the intake valve and right out the exhaust port at low speed. What works the best is a cam with little overlap, a lot of lift and duration but more lift and duration on the exhaust valves (since the blower really does nothing to help evacuate the cylinders). With a turbocharged engine, more lift and duration is needed on the intake valve to prevent back pressure (created by the turbo) from backing up into the cylinder.

Hope this helps.

Stinker can help you.

Justin can help you.

Comp Cams has technical assistance.

The one other concern is tuning your Idle. A very big cam will need to be tuned. Split Second makes a cam tuner to adjust Short Term Trim, which in turn adjusts your Long Term Trim.

 

[rottenronnie]

http://www.vtcoa.com/forums/showthread.php?t=31247&highlight=camshaft