Jonblarc7

The truck is L86 2014 6 speed with 3.42 and 22x12 33” tires. I tow a lot so I want to keep the stock stall. This will be with a DOD delete. I would like to keep the VVT and if it works with boost or already won’t hurt it with boost for later down the road that would be great. This is not an all out race truck.



GPI VVT1
The only thing I don’t like their package is they Chevy performance LT1 springs. But they claim will work good with something like a procharger.
https://gwatneyperformance.com/produ...#configuration


Then there’s the


TSP Gen V Lt1 VVT1 I like this because it comes with there spring instead of the GM ones.
https://www.texas-speed.com/p-4532-t...t-package.aspx


But I talked to TSP because I was worried about the stock stall. They actually suggested the L83 VVT2 cam for my 6.2 with a stock stall
https://www.texas-speed.com/p-5412-t...t-package.aspx

ZO6Ted

I do like TSP's suggestion for now but not for boost later so...

Jonblarc7

So your saying the TSP Gen5 VVT2 which is a 218/226, .635"/.635", 113 LSA, 109 ICL wouldn't be good for boost. But will it worse with boost later if you know what I mean. I figured since it's a smaller cam it's got to be better than a stock cam if I add boost later. Especially since it will have a over 32% fuel lobe.

But that's why I'm asking I have no idea.

Jonblarc7

So your saying the TSP Gen5 VVT2 which is a 218/226, .635"/.635", 113 LSA, 109 ICL wouldn't be good for boost. But will it worse with boost later if you know what I mean. I figured since it's a smaller cam it's got to be better than a stock cam if I add boost later. Especially since it will have a over 32% fuel lobe.

But that's why I'm asking I have no idea.

ZO6Ted

The one I saw was 112/108. I wouldn't prefer it.

Jonblarc7

Do you think that 112/108 would even sound like a cam in my 6.2. I'm trying not to base my choice in cams over sound but after doing all this work. I would like to hear what I've done when I start it up.

ZO6Ted

I don't think you'll hear much. It would be just fine for NA or maybe turbo but not with a stock stall (turbo). I think a blower could definitely use more however there is the stock stall issue again. I would ask Vortec350ss for a recommendation. Seems to have a pretty good handle on cams imho.

Jonblarc7

I just wrote him this nice long email only to find out his mail box is full LOL. Oh well.

I think ill I’ll just go with the VVT1 I’m getting Atomic to tune it and he suggested the same cam as you too. He think it will get a decent sound out of it.

00pooterSS

iTrader: (40)

I like GPI overall but I don't understand why they only do 54x lift cams. The TSP cam is .635

Looking at overlays of TSP high lift and low lift truck cams the high lift cams out perform the low lift cams (even with all other specs the same) through the entire dyno chart. So I personally would want the TSP higher lift cam right out of the gate.

You will need more serious springs and potentially have more spring maintenance down the line (may get fatigued in 50k or so miles for example) but you're a spring changing pro now so that's not biggie, and there is a chance they may go 100k plus. I really don't know.

I do know there are several really good running trucks out there on TSP cams and they have done tons of R&D with their in house machines and dyno's so I would feel really good about running a TSP cam. GPI does too but I don't think they cut their own cams or heads and I don't think they have an in house engine dyno. Doesn't mean they don't make a quality product but it's hard to beat someone that can cut and test a cam against many variations of cams all in house.

For the stock stall, I would recommend staying on the smaller side of cams for your truck, stage 1 or stage 2. I have a feeling you aren't chasing every last horse power and your truck has tons of power now. So for ease of tuning, not ending up hating the stall with the cam, etc etc I vote the stage 1 TSP

PonyKLR416

Call Steven at cam motion, they are awesome and he will custom spec one for your application. I have done 2 cams with him now.

I went with 222/236 112+3. 416 lt1 stroker with 2.9 whipple. 3k stall.