I’m curious how much I’m losing or what gains are to be had if I went to a turbo specific cam vs the tick stage 3 sns torque max cam I have now.

it is 235/243. .630/.610 LSA 111+2
I know it’s a n/a cam but I have no idea just how much it is helping or hurting my setup.

car runs ok. I think it should run faster. But maybe not.
Car is a 2000 TA. Stock engine other than cam/springs/pushrods. 78/75 on3
Made about 680 through the 4l80e and 8.8
4.10 gear.
Car has ran 6.60 at 107.
12.5 lbs of boost
1.53 60’ leaving on 6psi (footbrake w/ 2step)
3500-3600 lbs without me

is it worth a cam swap?

 

How much converter?

 

Looking at the data log, it looks like it flashes to about 4k or slightly over once I let off the footbrake/2step.

 

Large N/A cams work great with turbos, particularly at low back pressure ratios. Thats a pretty solid cam, it will go really far as long as back pressure doesn't become excessive.

 

Combo appears to be working pretty decently, 680whp on a cam only LS1 and 7875 on 12.5 lbs is pretty good.
I wouldn't push that stock LS1 much harder unless you have a 5.3 or something on standby, I ran my previous SBE LS1 up to 14.5lbs but was told it was grenade with the pin half pulled lol.
If you can get that 60' down a little more that would be ideal, that would get you tickling 9's in the 1/4.

 

You will max out the turbo and connecting rods before you have to worry about changing the cam. Get yourself a turbo with a larger turbine wheel (hot side). VS Racing also makes good cheap turbos.

 

@Summitracing

 

How's your exhaust? My truck has a VS Racing 78/75 gen 2.5 and I initially had 3 inch exhaust on it and it struggled to get past around the power level your at until I added a 4 inch cutout.

 

Thanks for all the responses.

the exhaust is just 3” all the way back till it splits to the dual tail pipes
it does have a 3” cutout under the driver floorboard which I open at the track.


I know this is completely unrelated to the original question. But I’m just pondering different things.
What do yall think about the 4.10 gear? Would it be beneficial to have something numerically lower? I’m needing rear tires soon and I’ve thought about going up to a 28” to give me a little higher gear. But I do wonder if it would hurt the sixty foot with the 4l80e and its high first gear

 

What size is your exhaust housing on your turbo? Also that is exactly how my exhaust use to be my my truck and it was killing my performance. So what we did on my truck is kept the 3 inch exhaust and did away with the 3 inch cutout under the truck and by the manifold under the hood we made a 4 inch fender exit with a 4 inch cutout and I have that controlled by a switch and also by rpm so if im driving normal it uses the 3 inch exhaust and if I go wot it opens the 4 inch fender exit. Also I tried 411 gears and I hated them so I went back to 342, mind you I have a 4l60e so my gearing is different.

 

I run 28s, 5.3, 230/236 Baker/Capizzi cam with a 3.50 gear.

 

If it were me, I'd be moving to a 3.50 gear or even a 3.23 gear. That tall first gear and OD would make it much more street friendly and help load the turbo better.

 

good to know. I’ll keep that in mind.
the a/r on my turbo is .96

I end up swapping a 3.55 gear in. And I’m going to get some 28s for the track.
It could be in my head but it seemed noticeably faster on the test drive.

 

You'd be surprised how quickly you will acclimate to the power especially if the car is able to put most of it down.
I had 4.11's in my last car with a T56 and it didn't really come to life until 3rd / 4th gear, it certainly wouldn't make full boost until the top of 3rd.
My current car has 3.50 gears with a TH400 and is much happier, I'm kiinda pondering a switch to 3.23's once I have it running on 18-20lbs. on E85 to help manage the power a little better and get more mph out of it.

 

mine is 1.25 ar and my truck is definitely faster with the 342 versus the 411. My first pass on the truck with the changes my mph went from 124 to 132 and I left soft on the transbrake and was my flex pipe on my down pipe had a bad exhaust leak so I only saw 12 psi, ive since but them off and welded in slip fit joints, I should of saw 20 psi. Haven't tested again yet but plan to soon. Keep in mind this is a truck.