2500HD Cam choice
2500HD Cam choice I have a 2005 2500HD with the LQ4 in it and 4.10 gears. The motor is currently on the engine stand for a rebuild which was originally going to be a stock overhaul...
coincidently I need a torque converter too.
So I figure if I have the motor out and need a converter anyway, I might as well do a cam and if necessary an ls6 intake, injectors, CAI and headers.
Any suggestions on a cam that preferably can be used with stock injectors, exhaust manifolds and the lq4 intake before I just sink a bunch of money into it and try to make a work truck into a race truck?
coincidently I need a torque converter too.
So I figure if I have the motor out and need a converter anyway, I might as well do a cam and if necessary an ls6 intake, injectors, CAI and headers.
Any suggestions on a cam that preferably can be used with stock injectors, exhaust manifolds and the lq4 intake before I just sink a bunch of money into it and try to make a work truck into a race truck?
I'd keep the truck intake - it's better than the LS6. Or I'd step up to the LSXRT from FAST.
Cam - I'd do something in the 218/224 110 range. It'll run out of breathe pretty early, but in a big truck, you want as much grunt as possible, especially if you keep stock compression.
I'd run a Yank Truck Thruster 2600. You want something that can still be used to tow. This can do that.
Cam - I'd do something in the 218/224 110 range. It'll run out of breathe pretty early, but in a big truck, you want as much grunt as possible, especially if you keep stock compression.
I'd run a Yank Truck Thruster 2600. You want something that can still be used to tow. This can do that.
Well with a mild cam I can have my converter rebuilt for $150. He's done a few for me before with good results.
I'd like to continue to be able to plow with this truck but I do ocassionally (rare actually) tow around 11,000lbs with this truck.
I was looking at the 212/216 .520/.524 111 IC. Should I go bigger?
I'd like to continue to be able to plow with this truck but I do ocassionally (rare actually) tow around 11,000lbs with this truck.
I was looking at the 212/216 .520/.524 111 IC. Should I go bigger?
Check into Brian Tooley stage 3 or 4 truck cam. With your 4.10 gears and if you also stall up the TC a bit as Jake suggests, those will do quite well. Brian keeps his lifts around 0.550, so you should be able to use stock LS springs, assuming the 317 heads use the same springs as the LS6, 2, etc
I remember a cam shootout that had a tiny crane 210/218 .550 lift that made the most avg power and lost virtually nothing down low. Seems like for a truck that would be ideal. Anyone ever use it?
I emailed BTR and explained what I am looking to do.
I'd love to do something radical and sink a bunch of money into this truck because I don't have a race car anymore but realistically it's a work truck. I'll probably be doing a small cam, tune and calling it done.
I'd love to do something radical and sink a bunch of money into this truck because I don't have a race car anymore but realistically it's a work truck. I'll probably be doing a small cam, tune and calling it done.
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Keep it small since not raising the compression ratio or opening up the exhaust. The 4.10s and slight stall will help a bunch for when you're lugging the additional 5 tons of cargo. Perhaps if you found a great deal on a good used Lingenfelter GT 2-3 or a similar sized BTR grind. Either way, LS 2 chain, push rods, and springs/gaskets can all be gotten from Brian.
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Any of the truck cams with new LS6 springs is $439 shipped and is here: http://www.briantooleyracing.com/btr...-camshaft.html
The cam install kit is here: http://www.briantooleyracing.com/btr...ation-kit.html
The cam specs can be found here: http://www.briantooleyracing.com/truck-cams.html
Looks like I'm ordering the BTR Stage 2 (212/218 duration) truck cam with LS6 springs. Jared at BTR advised against the Stage 3 cam if I use the truck to tow or plow.
Took my cam out today, the number 3 cam bearing shrunk tight to the cam journal. Block looks good but the machine shop will check it out for me when they are installing cam bearings.
Stock cam is a little chewed up on the 3rd bearing journal... I guess I found out my low oil pressure and grooved #4 & #5 main bearing cause.
Thanks a bunch guys. No point in not camming it now since I need a replacement cam anyway.
Took my cam out today, the number 3 cam bearing shrunk tight to the cam journal. Block looks good but the machine shop will check it out for me when they are installing cam bearings.
Stock cam is a little chewed up on the 3rd bearing journal... I guess I found out my low oil pressure and grooved #4 & #5 main bearing cause.
Thanks a bunch guys. No point in not camming it now since I need a replacement cam anyway.
Awesome it's a very similar cam on paper. The BTR cam just has 2 degrees more duration on the intake lobes.
I however am keeping stock exhaust because it's a work truck for me and I could very well be plowing somebody's driveway at 5 AM or going on an estimate.
I however am keeping stock exhaust because it's a work truck for me and I could very well be plowing somebody's driveway at 5 AM or going on an estimate.