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any PTV issues with this cam choice? LS3 c6.


LivnTheDream23

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Got a cam going in over at IPS in a few weeks and wanted to see what others think of my cam choice. My main concern being PTV clearance.

 

Cam spec...

 

231/238 .638”/.615” 113LSA +3

 

Comp EHI/LXL lobes

 

Cam was Specd out by Pat Guerra.

 

 

 

Car is a 2010 LS3 c6.

 

Hoping to make anything north of 470.

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THe BEST way to measure IMO is to use dial indicators. You will still need to replace the hydraulic lifter with a solid lifter, and use a check spring in place of the valvespring. (you can get a check spring from Home Depot... they have these packs of screen door springs for like 5 bucks) and for a solid lifter, I just welded a bad hydraulic one. Also make sure you use a head gasket (an old one since you will toss it when done) and tq the heads down....

 

here is what it looks like all set up:

http://i30.photobucket.com/albums/c318/Juicedh22/IMG_2352.jpg

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Start the motor.............

 

yea but you have heating of the metals and such, so what might work at cold start up might not work with back to back 2-4th gear runs...

 

THe BEST way to measure IMO is to use dial indicators. You will still need to replace the hydraulic lifter with a solid lifter, and use a check spring in place of the valvespring. (you can get a check spring from Home Depot... they have these packs of screen door springs for like 5 bucks) and for a solid lifter, I just welded a bad hydraulic one. Also make sure you use a head gasket (an old one since you will toss it when done) and tq the heads down....

 

here is what it looks like all set up:

http://i30.photobucket.com/albums/c318/Juicedh22/IMG_2352.jpg

 

 

Is that something a shop does/or I can request, when they put a cam in?

 

great info by the way..

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Did you pick the cam, or did IPS recommend it? If IPS recommended it, then I would say it's their responsibility to make sure the clearance is correct.

 

I think Dave was kidding about "Start the motor", although you will find out if you have adequate clearance or not very quickly.

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yea but you have heating of the metals and such, so what might work at cold start up might not work with back to back 2-4th gear runs...

 

I was just being an ass. Nothing is going to be "easy" to check for that. If it's questionable, then check.

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Did you pick the cam, or did IPS recommend it? If IPS recommended it, then I would say it's their responsibility to make sure the clearance is correct.

 

I think Dave was kidding about "Start the motor", although you will find out if you have adequate clearance or not very quickly.

 

It was specd out by Pat Guerra.

 

I was just being an ass. Nothing is going to be "easy" to check for that. If it's questionable, then check.

 

I figured you were.

 

Ok thanks guys. I have IPS looking into it.

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