L83 Cam Swap

rjw · August 17, 2016

some pics of the blower install

rjw · August 17, 2016

By the way, don't forget to do a C.A.S.E. learn with the PCM after doing a cam swap. It sync's up the camshaft timing to the cam sensor for more accurate spark and fuel injector firing. I did this with every cam swap I did in the 99-07 trucks.

I thought it was only when changing pcm's ?

hirdlej · August 18, 2016

Nope, a C.A.S.E. learn should be performed whenever changing anything related to valve timing. Chain, sprockets, camshaft.

I thought it was only when changing pcm's ?

rjw · August 18, 2016

Nope, a C.A.S.E. learn should be performed whenever changing anything related to valve timing. Chain, sprockets, camshaft.

all I have is crankshaft learn. when I click on it I get a message to slowly accelerate to fuel cutoff. I click on OK and do so...should I get a message that it was succesful? Also, is fuel cutoff 4k while in case learn??

thx

hirdlej · August 18, 2016

I'm not sure if the same parameters need to be met on the new trucks, but on the 99-07's the procedure was to get engine up to temp, apply both e-brake, regular foot brake and have truck in park. In HP Tuners I clicked on the learn button and then pushed through the throttle until the fuel cutoff around 4-5k rpm. I did it so fast that I never even looked at the tach. I think it is 4k RPM though if my memory serves me correct. It's simply and only takes a few seconds.

rjw · August 18, 2016

I'm not sure if the same parameters need to be met on the new trucks, but on the 99-07's the procedure was to get engine up to temp, apply both e-brake, regular foot brake and have truck in park. In HP Tuners I clicked on the learn button and then pushed through the throttle until the fuel cutoff around 4-5k rpm. I did it so fast that I never even looked at the tach. I think it is 4k RPM though if my memory serves me correct. It's simply and only takes a few seconds.

I think that things are different on the 2105 with E92 ecm.... thanks

truckguy82 · August 19, 2016

You guys are crazy for wanting to install an lt1 cam. The 6.2's only make 65 more hp than the 5.3. I don't think the cam is a big part of the equation.

For a part in which the install labor is the primary expense, I'd probably go with a better cam.

07Softail · August 19, 2016

I think I would have done the LT4 cam since it's a Blower cam and cheap.

RT

rjw · August 20, 2016

You guys are crazy for wanting to install an lt1 cam. The 6.2's only make 65 more hp than the 5.3. I don't think the cam is a big part of the equation.

For a part in which the install labor is the primary expense, I'd probably go with a better cam.

LT4 cam...$140 delivered, ....better fuel lobe, and is a blower cam......not looking for 700 hp on a daily driver

If I had to do the cam again, labor would be cut in 1/4.....

07Softail · August 20, 2016

Sure it's capable of 600+ but doesn't mean you have to reach for max effort. It would work well at 550+ easy while retaining it's timing features and again it's cheap!

RT

rjw · August 20, 2016

that's what we are going for. 500 rwhp = good enough. anything more is gravy

Lupe Figueroa · September 24, 2016

I have a 2016 5.3 silverado, I installed the cam that comes factory on the 2016 z06 corvette, I'm installing a turbo and this cam produces more fuel at the mechanical fuel pump that comes on the l83 motor, this is a big job since you are supposed to remove the heads but I work at Chevy and we did it without having to, a lot easier, the computer adjusted itself and the truck ran like if no changes had been made, I decided to tune it before installing the turbo with the new cam and it went from 10.02 to 9.6 in the 1/8 mile my truck is a short bed single cab with factory 3.42 gears with posi traction, next time I'll try it with e85 fuel before I install my t88 precision turbo which should give me around 650 hp to the wheels without having to reinforce the bottom end or replacing any other parts.