Who has a cam and DoD
Someone even said Comp has/ making one. Talked to comp, sales guy there said not the case...
I want to get the most out of my car obviously, but I do drive 104 miles a day and mileage is a factor.
Anyone? Anyone?
A ProCharger would be expensive though...more so than the Cartuning Kit
Last edited by Brian396; Apr 30, 2010 at 08:50 AM. Reason: I suffer from CRS
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It looks like new era makes a few things which is nice
Some could probably make it work if they got a 3.8 CSC kit. I know when its on a L36 there a monster...
The kit comes with the cam, PAC 1218's, 7.45" chromoly pushrods (to account for the reduced radius of the cam base circle), and an LS2 timing chain dampener. The cam is a Comp Cams LS grind. It's a single bolt cam (07+ for us) that was ground not to exceed the lift limitations of the DOD lifters and to still operate when DOD was active. I’ve kinda pieced together from scattered conversations that they tried several grinds that made good power and chose the one that worked the best as a 4 cylinder too. The cam was designed with a 6.0L in mind, but the power peak in the 6.0 was somewhere around 5800RPM, so it’s not going to be too radical in a 5.3L.
I hope to install it towards the end of the month, along with the headers, when I finally get a weekend to myself. Once it’s installed, I hope to make it to the dyno for some WOT tuning and then the track.
The kit comes with the cam, PAC 1218's, 7.45" chromoly pushrods (to account for the reduced radius of the cam base circle), and an LS2 timing chain dampener. The cam is a Comp Cams LS grind. It's a single bolt cam (07+ for us) that was ground not to exceed the lift limitations of the DOD lifters and to still operate when DOD was active. I’ve kinda pieced together from scattered conversations that they tried several grinds that made good power and chose the one that worked the best as a 4 cylinder too. The cam was designed with a 6.0L in mind, but the power peak in the 6.0 was somewhere around 5800RPM, so it’s not going to be too radical in a 5.3L.
I hope to install it towards the end of the month, along with the headers, when I finally get a weekend to myself. Once it’s installed, I hope to make it to the dyno for some WOT tuning and then the track.
EDIT: I ask because my ultimate goal is to deal with the intake and exhaust (headers back) and then swap out the camshaft that will hopefully remove the massive bottom end torque (yet retaining DOD/AFM), thus alleviating the path to the 6T75 six speed automatic transmission swap.
I feel this is a must when going with that six speed (high first gear ratio of 4.484:1). And I will be going to that six speed; money is sitting around and waiting.
Last edited by GXP25; May 4, 2010 at 12:39 AM. Reason: Added some more information.
I've posted a couple times about getting rid of the bottom end, but it's not exactly that I dislike it and want it to go away. I just think losing the bottom end won't hurt performance, except for climbing hills in 4th. Actually, the gear change I already did will more than offset any lost bottom end, relative to stock. I think I'll be fine with whatever low end torque I lose, and the extra mid range and top end will really help acceleration. We have a high stall converter already in the car, too. Also, since I'll be able to spin the engine a little more, the RPMs will be a little higher after the 1->2 shift.
While this cam isn't as lumpy as Mixerda's, I think it will still sound pretty good. There isn't a lot of stop and go traffic where I live, so the overlap won't kill my mileage. If there was a lot of stop and go in my life, I might have paired a stock L76 cam with Crane 1.8:1 rockers. That would bump up duration but keep the overlap close to stock.
By the way, the only thing I know about this cam spec wise is the LSA (113) and roughly the lift (something close to 0.57" valve lift). They also claim to have dyno'd an extra 54HP at the wheels of a G8 GT. Sure I'd like to know the specs, but it's not like there are a lot of options.
ditch DOD
just my 2 cents


