Cam selection advice
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Joined: Dec 2020
Posts: 51
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Cam selection advice
Help me make a decision.
Other mods: Catless headers, flex fuel, and ported intake manifold/TB.
Goals: Street (occasional strip) car, good low/mid range power, and decent drive ability.
Car: 2011 GrandSport m6
- Spinmonster 230/234 .600/.615 114 +4
- Titan III 227/237 .621/.604 113 +6
- CMC-30 227/239 629/.623 114 +5
Other mods: Catless headers, flex fuel, and ported intake manifold/TB.
Goals: Street (occasional strip) car, good low/mid range power, and decent drive ability.
Car: 2011 GrandSport m6
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Are you sure you have the advance right on the Spin cam and the Titan 3? I thought there were 2 and 3.5 respectively.
The Spin cam is going to be the smoothest of the three and probably equal or close enough to equal on top end power. The other two probably better on the bottom end and might be a smidge better through the mid range. But, with more overlap comes more low speed/street type issues. Vengeance has a 227/235 115+4 cam that I would choose before any of the three. 1 degree of overlap vs 4+ on the others. I'm running a Cam Motion custom at 226/234 115+4. It has 0 overlap and I like it better than any shelf cam out there. It fits me just perfect. Not saying that anyone else needs to run it though. Pat G has a really nice mild LS3 cam also. Might be wise to get his thoughts on things. Costs a few bucks, but well worth it.
You won't go far wrong with any of them. BTR has one that slots right in there too. Maybe their Stage 2 LS3 cam?
The Spin cam is going to be the smoothest of the three and probably equal or close enough to equal on top end power. The other two probably better on the bottom end and might be a smidge better through the mid range. But, with more overlap comes more low speed/street type issues. Vengeance has a 227/235 115+4 cam that I would choose before any of the three. 1 degree of overlap vs 4+ on the others. I'm running a Cam Motion custom at 226/234 115+4. It has 0 overlap and I like it better than any shelf cam out there. It fits me just perfect. Not saying that anyone else needs to run it though. Pat G has a really nice mild LS3 cam also. Might be wise to get his thoughts on things. Costs a few bucks, but well worth it.
You won't go far wrong with any of them. BTR has one that slots right in there too. Maybe their Stage 2 LS3 cam?
Racer
Joined: May 2014
Posts: 488
Likes: 76
Are you sure you have the advance right on the Spin cam and the Titan 3? I thought there were 2 and 3.5 respectively.
The Spin cam is going to be the smoothest of the three and probably equal or close enough to equal on top end power. The other two probably better on the bottom end and might be a smidge better through the mid range. But, with more overlap comes more low speed/street type issues. Vengeance has a 227/235 115+4 cam that I would choose before any of the three. 1 degree of overlap vs 4+ on the others. I'm running a Cam Motion custom at 226/234 115+4. It has 0 overlap and I like it better than any shelf cam out there. It fits me just perfect. Not saying that anyone else needs to run it though. Pat G has a really nice mild LS3 cam also. Might be wise to get his thoughts on things. Costs a few bucks, but well worth it.
You won't go far wrong with any of them. BTR has one that slots right in there too. Maybe their Stage 2 LS3 cam?
The Spin cam is going to be the smoothest of the three and probably equal or close enough to equal on top end power. The other two probably better on the bottom end and might be a smidge better through the mid range. But, with more overlap comes more low speed/street type issues. Vengeance has a 227/235 115+4 cam that I would choose before any of the three. 1 degree of overlap vs 4+ on the others. I'm running a Cam Motion custom at 226/234 115+4. It has 0 overlap and I like it better than any shelf cam out there. It fits me just perfect. Not saying that anyone else needs to run it though. Pat G has a really nice mild LS3 cam also. Might be wise to get his thoughts on things. Costs a few bucks, but well worth it.
You won't go far wrong with any of them. BTR has one that slots right in there too. Maybe their Stage 2 LS3 cam?
If you can get a hold of him after he steals your money! Want any more info? Pm me
Last edited by rajahhindi; Sep 7, 2021 at 12:12 AM.
Thread Starter
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Joined: Dec 2020
Posts: 51
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Sorry, guess I had some numbers mixed up.
So the cam options have been narrowed down to 2. Others are unable to ship. I could probably find someone to grind me the spinmonster cam, if I look around more.
1- 228/235 .6xx/.6xx 111 +2 (Comp cams)
If I go this route I’ll have it ground on a 113 LSA for drive ability.
2- 227/237 .621/.604 113 +3.5 (Cam motion)
So the cam options have been narrowed down to 2. Others are unable to ship. I could probably find someone to grind me the spinmonster cam, if I look around more.
1- 228/235 .6xx/.6xx 111 +2 (Comp cams)
If I go this route I’ll have it ground on a 113 LSA for drive ability.
2- 227/237 .621/.604 113 +3.5 (Cam motion)
Last edited by Zee_; Sep 8, 2021 at 12:33 AM.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Of those two, I'd choose the Cam Motion one for sure. No telling what lobe series Comp is using. Some of their cams are just hard on the valve train. I just changed the valve springs (BTR dual .660 lift) and rocker arms (stock) on my LS3 with over 30K miles on them. They looked perfect. My Cam Motion cam has .620 lift on both sides. I saved those springs and will have them tested to possibly use on a future project with a milder cam.
You won't save any money, but you can buy direct from Cam Motion. They'll tell you the real story on delivery time too. You throw a retailer into the mix and some will tell you what you want to hear to make the sale....no matter if it's true or not.
You won't save any money, but you can buy direct from Cam Motion. They'll tell you the real story on delivery time too. You throw a retailer into the mix and some will tell you what you want to hear to make the sale....no matter if it's true or not.
Burning Brakes
Joined: Dec 2011
Posts: 876
Likes: 116
From: HOMESTEAD FL
I have been planning on the Texas Speed Stage 2 LS3 cam. 229/244 112 LSA It pulls great all the way up to 6500 Rpms.
It also makes more power and torque than the TSP Stage 3 cam while maintaining better overall street manners.
SPEED SAFE, NICK
It also makes more power and torque than the TSP Stage 3 cam while maintaining better overall street manners.
SPEED SAFE, NICK
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Just beware that you get 10 degrees more overlap comparing their stage 1 vs stage two. 12.5 degrees vs 2.5. That's a lot of drivability you're giving up for gains above 6000 rpm. The stage one is actually better under 4000rpm, and hangs right with the stage 2 to 6000 rpm. If you live between 6000 and 7000 rpm, it might be worth it. For a street ride that occasionally sees track time, it ain't worth it to me. YRMV
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Burning Brakes
Joined: Dec 2011
Posts: 876
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From: HOMESTEAD FL
SPEED SAFE, NICK
Last edited by AIR_RAM; Sep 8, 2021 at 07:31 PM.
Tech Contributor
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
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Heyyy, what’s up Spin? Been reading your threads for a while. That cam of yours is real nice.
That’s what I’ve been reading. Makes you wonder why people opt for these big *** 18 degree overlap cams just to make a few extra peak hp and sacrifice drive ability and low/mid range.
Le Mans Master
Joined: Dec 2005
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From: Southeast TX
Burning Brakes
Joined: Jan 2019
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From: Dallas, Tx
Burning Brakes
Joined: Dec 2011
Posts: 876
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From: HOMESTEAD FL
i know that I personally would chose the one with the a more pronounced lope even though It may not be the most “efficient”. And with mine being a standard Trans, it’s a bit more forgiving that with an Auto having to match a torque converter to it.
so there are more variables involved other than the absolute most HP…
Racer
Joined: Jun 2018
Posts: 296
Likes: 87
I think those who opt for the overlap are doing it just as much for the sound as they are the HP… if there where two cams available and they both made the same amount of HP but one had more lope than the other yet the one without the lope was most efficient…
i know that I personally would chose the one with the a more pronounced lope even though It may not be the most “efficient”. And with mine being a standard Trans, it’s a bit more forgiving that with an Auto having to match a torque converter to it.
so there are more variables involved other than the absolute most HP…
i know that I personally would chose the one with the a more pronounced lope even though It may not be the most “efficient”. And with mine being a standard Trans, it’s a bit more forgiving that with an Auto having to match a torque converter to it.
so there are more variables involved other than the absolute most HP…
Well here's how my spinmonster cam sounds with only 4 degrees of overlap...
Burning Brakes
Joined: Dec 2011
Posts: 876
Likes: 116
From: HOMESTEAD FL
https://youtu.be/BH1Vt_B9Qd8
Well here's how my spinmonster cam sounds with only 4 degrees of overlap...
Well here's how my spinmonster cam sounds with only 4 degrees of overlap...
SPEED SAFE, NICK
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Whoa wait a minute, you're onto something. No one ever thought of using letters. I can start off with a Stage................ B.