Going to a bigger cam
07-22-2018, 11:10 AM
#1
Teching In
Thread Starter
Join Date: Nov 2016
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Going to a bigger cam currently have an LS2/T-56 C6 vette cam only set up with 1 3/4 headers, full cat-less Corsa exhaust, trunion upgrade, dual 660 springs, hardened pushrods, 25% under-driven balancer, cold air intake, wires, plugs, and BTR stage 3 cam: 231/242 .617"/.592" 112+2 with a dyno tune. The car made 437 rwhp and 427rwtq. The car drives great and has stock like street manners but I want more out of it. I would like to be between 510 and 530 rwhp.
I’m having my 243 heads CNC ported, valve job, and surface milled, port matching a Fast 102, Nick Williams 102 throttle body, 42lb injectors etc.
I’m looking at going to a Tick Polluter Cam and I'd obviously like to make more power but I’d still like to retain good street manners. I know the drive-ability has a lot to do with the tuner and my tuner is excellent.
I just wanted to see if any others used any of these cams and see if this cam (Tick Polluter) would be a good choice or will it be too big for my stock gears etc? I had also looked at the BTR Stage 4 (235/242 .621"/.592" 111+3) and the LG G5X4 as well.
I’m having my 243 heads CNC ported, valve job, and surface milled, port matching a Fast 102, Nick Williams 102 throttle body, 42lb injectors etc.
I’m looking at going to a Tick Polluter Cam and I'd obviously like to make more power but I’d still like to retain good street manners. I know the drive-ability has a lot to do with the tuner and my tuner is excellent.
I just wanted to see if any others used any of these cams and see if this cam (Tick Polluter) would be a good choice or will it be too big for my stock gears etc? I had also looked at the BTR Stage 4 (235/242 .621"/.592" 111+3) and the LG G5X4 as well.
07-22-2018, 11:22 AM
#3
Teching In
Thread Starter
Join Date: Nov 2016
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
07-22-2018, 11:35 AM
#6
TECH Senior Member
iTrader: (2)
Join Date: Aug 2012
Location: Howell & Fenton MI
Posts: 11,145
Likes: 0
Received 15 Likes
on
15 Posts
Yeah that's about what I would expect as well. As a reference, my buddy made 495 rwhp with Mast 215 heads, big cam, and Fast 92 intake. This was on a stock cube LS2 with a manual trans. Before the heads he made 445 rwhp. The only thing he changed was the heads
07-23-2018, 12:41 AM
#7
Teching In
Join Date: Sep 2006
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
I think 500 is doable. I mean you are getting ported heads, bigger cam, fast 102 and maybe some 1 7/8 headers. They should get you 500 or real close to it. Getting more than 500 will require to raise the compression quite a bit.
Trending Topics
07-23-2018, 01:15 AM
#8
TECH Junkie
I run the Polluter V2 in my Ls1. Details in sig.
Be prepared to spin it.
I love the cam. Above 6000 rpms it absolutely hauls which with a 4400 stall im always above 6200 rpms.
Be prepared to spin it.
I love the cam. Above 6000 rpms it absolutely hauls which with a 4400 stall im always above 6200 rpms.
07-23-2018, 05:47 AM
#9
This thread may have some excellent details of hitting 500whp-520whp with ported 243's
https://ls1tech.com/forums/generatio...m-ls1-6-a.html
500+ whp is doable with top notch ported 243's with a lot of attention to details. Here's an example with a 5.7 LS6
Is easier done with ported Trick flow or other aftermarket heads.
https://ls1tech.com/forums/generatio...m-ls1-6-a.html
500+ whp is doable with top notch ported 243's with a lot of attention to details. Here's an example with a 5.7 LS6
Is easier done with ported Trick flow or other aftermarket heads.
07-23-2018, 08:22 PM
#12
I'd suggest the BTR stage 3 for a weekend drag car or the BTR stage 2 for a street car. I just saw someone post their dyno numbers for a BTR stage 4 and they were only 8 hp higher than my numbers with a BTR stage 2 cam. We both are running similar heads. They were also running a Fast 102 vs my Dorman 92.
07-24-2018, 10:20 AM
#16
Teching In
Join Date: Mar 2018
Location: Bristol, TN
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
If you are opening up the heads, and want to maintain street manners, I don't think a bigger cam is the answer. That's just going to move the power band higher, and you will lose on the bottom end.
07-24-2018, 08:13 PM
#19
i just did heads on my car and want to go to a smaller cam......you dont need as much cam to make power when you now have the ability to move more air with good heads. think about it, why do square and rectangular port heads have such higher duration on the exh than the int? im no expert but that tells me because it can't move air on that side like it can on the intake. so you bandaid that by more duration.
back to this discussion, good 243s won't need a cam to bandaid them, because they can flow. if you wanted to send peak power higher, that would be the only real benefit i see in increasing cam size with good heads.
back to this discussion, good 243s won't need a cam to bandaid them, because they can flow. if you wanted to send peak power higher, that would be the only real benefit i see in increasing cam size with good heads.
07-25-2018, 09:04 AM
#20
Teching In
Join Date: Mar 2018
Location: Bristol, TN
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
To build on this a little, its a matter of physics. If you can get more air through the heads, it will take less time to fill the same sized cylinder at the same rpm range. You don't have to hold the valve open as long, meaning smaller camshaft. Hold it open too long and you bleed cylinder pressure.