Three cam suggestions for a LS3 DD
11-02-2011, 06:09 PM
#1
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Three cam suggestions for a LS3 DD Hi!
Asked around a bit and got 3 totally different cam recommendations for a DD LS3.
Mentioned requests was made. (or to get them as close to them at least)
1. Idle as near as stock as possible.
2. 500hp/torque if possible. (at the crank)
3. It's 99.9% a DD so it needs to have good street manners.
4. As little to no valve train wear as possible
Results.
1. 215/223 604/610 114lsa
2. 225/230 .617"/612" 114 LSA
3. 222/226 .597/.602" 114LSA +2
My mods consist of, headers, no cats, Cold air intake.
The car weighs in at around 1800KG or shy of 4000 lbs?
Goal? What cam would give me the best power under the curve from bottom to the top?
My thoughts: the 1st one seems to be a bit odd suggestion?
Your thoughts/suggestions/recommendations?
Asked around a bit and got 3 totally different cam recommendations for a DD LS3.
Mentioned requests was made. (or to get them as close to them at least)
1. Idle as near as stock as possible.
2. 500hp/torque if possible. (at the crank)
3. It's 99.9% a DD so it needs to have good street manners.
4. As little to no valve train wear as possible
Results.
1. 215/223 604/610 114lsa
2. 225/230 .617"/612" 114 LSA
3. 222/226 .597/.602" 114LSA +2
My mods consist of, headers, no cats, Cold air intake.
The car weighs in at around 1800KG or shy of 4000 lbs?
Goal? What cam would give me the best power under the curve from bottom to the top?
My thoughts: the 1st one seems to be a bit odd suggestion?
Your thoughts/suggestions/recommendations?
11-03-2011, 11:11 AM
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525 HP @ 6300 rpm
489 LB-FT @ 4400 rpm
What do you get when you take GMPP's aggressive ASA camshaft - developed for the high-rpm world of circle-track racing - and slip it into an LS3 6.2L engine? The answer is 525 horsepower in one of our most powerful production-based crate engines - the new LS376/525.
The ASA camshaft is a hydraulic roller with .525-inch lift on both sides, along with 226 degrees duration on the intake side and 236 degrees on the exhaust side. Coupled with a tight, 110-degree lobe separation angle, it helps the engine deliver excellent throttle response and breath exceptionally well at high rpm. And for durability, we complement the cam with higher-rate valve springs.
WOW didn't know GM had a hot hot cam available for the LS3.
Can't find a dyno sheet on it though or where the power starts at so a matching converter can be installed.
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11-03-2011, 01:29 PM
#9
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525 HP @ 6300 rpm
489 LB-FT @ 4400 rpm
What do you get when you take GMPP's aggressive ASA camshaft - developed for the high-rpm world of circle-track racing - and slip it into an LS3 6.2L engine? The answer is 525 horsepower in one of our most powerful production-based crate engines - the new LS376/525.
The ASA camshaft is a hydraulic roller with .525-inch lift on both sides, along with 226 degrees duration on the intake side and 236 degrees on the exhaust side. Coupled with a tight, 110-degree lobe separation angle, it helps the engine deliver excellent throttle response and breath exceptionally well at high rpm. And for durability, we complement the cam with higher-rate valve springs.
WOW didn't know GM had a hot hot cam available for the LS3.
Can't find a dyno sheet on it though or where the power starts at so a matching converter can be installed.
525 HP @ 6300 rpm
489 LB-FT @ 4400 rpm
What do you get when you take GMPP's aggressive ASA camshaft - developed for the high-rpm world of circle-track racing - and slip it into an LS3 6.2L engine? The answer is 525 horsepower in one of our most powerful production-based crate engines - the new LS376/525.
The ASA camshaft is a hydraulic roller with .525-inch lift on both sides, along with 226 degrees duration on the intake side and 236 degrees on the exhaust side. Coupled with a tight, 110-degree lobe separation angle, it helps the engine deliver excellent throttle response and breath exceptionally well at high rpm. And for durability, we complement the cam with higher-rate valve springs.
WOW didn't know GM had a hot hot cam available for the LS3.
Can't find a dyno sheet on it though or where the power starts at so a matching converter can be installed.
11-03-2011, 01:53 PM
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11-03-2011, 05:09 PM
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In the quest for cam advice, you left out some key details about your intended application.
Is your 4000lb car a manual transmission or auto transmission?
-- If it is an auto, what converter are you running?
- Tire size
- Rear gear
Is your 4000lb car a manual transmission or auto transmission?
-- If it is an auto, what converter are you running?
- Tire size
- Rear gear
Last edited by topbrent; 11-03-2011 at 08:35 PM.
11-03-2011, 08:42 PM
#13
Pat G has posted a nice combo with a strong under the curve punch. https://ls1tech.com/forums/dynamomet...p-446rwtq.html
I would bet he could spec you out something using EPS lobes for a little less valvetrain stress and make similar/same hp/tq numbers.
Cam: This cam is ground on Comp LSL lobes:
- 273/281 @.006 (ADV), 223/231 @.050, - .610/.617, 113LSA +4 advance, 51°/ 1° overlap
-------------------------------------------------------
The GMPP Hot cam and ASA Hot cam are decent @.050, but the lobes are comparatively slow with tons of overlap at .006, when judged next to more modern lobes, ie Comp XE, XE-R, XFI, LSL, EPS, ect.
One of their main benefits is that they don't require much valvespring to function properly.
Other than that, you are better served with a more modern profile.
I would bet he could spec you out something using EPS lobes for a little less valvetrain stress and make similar/same hp/tq numbers.
Cam: This cam is ground on Comp LSL lobes:
- 273/281 @.006 (ADV), 223/231 @.050, - .610/.617, 113LSA +4 advance, 51°/ 1° overlap
-------------------------------------------------------
The GMPP Hot cam and ASA Hot cam are decent @.050, but the lobes are comparatively slow with tons of overlap at .006, when judged next to more modern lobes, ie Comp XE, XE-R, XFI, LSL, EPS, ect.
One of their main benefits is that they don't require much valvespring to function properly.
Other than that, you are better served with a more modern profile.
Last edited by topbrent; 11-03-2011 at 09:43 PM.
11-04-2011, 01:12 AM
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I gave that info the manufactures as well, should have stated it here though.
It's an Auto A4 with a broken 2100 stall converter at the moment. It was stated that I'm looking to get a lower stall converter for a little better street manners. (1900 ish)
Tire size is 27" tal
Rear gear is 3.73:1
11-04-2011, 09:05 PM
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Hi!
Asked around a bit and got 3 totally different cam recommendations for a DD LS3.
Mentioned requests was made. (or to get them as close to them at least)
1. Idle as near as stock as possible.
2. 500hp/torque if possible. (at the crank)
3. It's 99.9% a DD so it needs to have good street manners.
4. As little to no valve train wear as possible
Results.
1. 215/223 604/610 114lsa
2. 225/230 .617"/612" 114 LSA
3. 222/226 .597/.602" 114LSA +2
My mods consist of, headers, no cats, Cold air intake.
The car weighs in at around 1800KG or shy of 4000 lbs?
Goal? What cam would give me the best power under the curve from bottom to the top?
My thoughts: the 1st one seems to be a bit odd suggestion?
Your thoughts/suggestions/recommendations?
Asked around a bit and got 3 totally different cam recommendations for a DD LS3.
Mentioned requests was made. (or to get them as close to them at least)
1. Idle as near as stock as possible.
2. 500hp/torque if possible. (at the crank)
3. It's 99.9% a DD so it needs to have good street manners.
4. As little to no valve train wear as possible
Results.
1. 215/223 604/610 114lsa
2. 225/230 .617"/612" 114 LSA
3. 222/226 .597/.602" 114LSA +2
My mods consist of, headers, no cats, Cold air intake.
The car weighs in at around 1800KG or shy of 4000 lbs?
Goal? What cam would give me the best power under the curve from bottom to the top?
My thoughts: the 1st one seems to be a bit odd suggestion?
Your thoughts/suggestions/recommendations?
That would help with valvetrain wear.
11-05-2011, 02:42 AM
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Ofc GMs normal hotcam that rates at 480HP/475ft lbs.
I've been told though that the new springs on the market should be able to handle a 0.6" lift without problems. Higher then 0.6" and it becomes a bit iffy on the wear side if things. (As far as I know...)
