what cam?
Thread Starter
Drifting
Joined: Aug 2004
Posts: 1,830
Likes: 1
From: atlanta Georgia
what cam should I use?
I have a 1996 auto LT1. 80k. stock rear 2.59s stock TC
I have or will install with this cam the following:
Hedman ceramic coated LTs..by me
k an n open air lid
mufflers elims
not cats
under drive pullies
gm 1.6 rrs
ls1 stock valve springs
bbk 52 mm tb
meizere water pump
cloyles true double chain
I acctually think a cam that gets power between 3-5 would be best for me as I have a dana 36 and dont wanna risk too much tq to the rear upon take off... I was looking at hot cam but want more agressive
I'd acctually like a choppy Idle hehe but not a must.
what do you think would be the best cam for me and my set up? and why?
thanks alot your friend
Sean
I have or will install with this cam the following:
Hedman ceramic coated LTs..by me
k an n open air lid
mufflers elims
not cats
under drive pullies
gm 1.6 rrs
ls1 stock valve springs
bbk 52 mm tb
meizere water pump
cloyles true double chain
I acctually think a cam that gets power between 3-5 would be best for me as I have a dana 36 and dont wanna risk too much tq to the rear upon take off... I was looking at hot cam but want more agressive
I'd acctually like a choppy Idle hehe but not a must.
what do you think would be the best cam for me and my set up? and why?
thanks alot your friend
Sean
Last edited by redbullapril23; Feb 8, 2005 at 06:12 PM.
Intermediate
Joined: Jun 2004
Posts: 47
Likes: 0
From: ocean isle nc
I opted for the gm 845 cam. Ive bought it but havent installed it yet. It is used quite often in heavier vehicles such as impalas because of its torque output. it has been favorable over the hotcam due to the lower rpm power output and as I mentioned, torque. With your automatic transmission and gear ratio it should do quite well. Specs are 214/218 @.050 488/509 lift w/ 1.5rr 112 deg. As you can see the numbers are not far from the hotcam. Slightly less duration and more lift. I dont recall the lift with 1.6 rockers but it exceeds the hotcam by a signifigant amount. Probably does not require additional tuning. Also, it is a true "drop in" camshaft. One drawback is that if you go with 1.6 rockers your lift will exceed the limits of the lt4 springs. Everyone I have talked with about this cam has fallen in love with it, saying they increased power and torque throughout the range with no sacrifice in low end or drivability. Also say it has a nice sound. If I get mine in next week as I plan I will sure let you know. You can find a lot of info on the yahoo search. Ive also heard good things about the comp cams 501.
Thread Starter
Drifting
Joined: Aug 2004
Posts: 1,830
Likes: 1
From: atlanta Georgia
I am running ls1 springs though..
what about the 846 cam? to big?
does anyone have dyno sheets for the different cams they are running for close to stock cars with different cams?
what about the 846 cam? to big?
does anyone have dyno sheets for the different cams they are running for close to stock cars with different cams?
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Your rear end gear ratio is another one of the concerns in camshaft selection. Too much cam and the car will feel like a dog with 2.59s.
With 2.59s, how often will the engine actually see 3000/5000 RPMS?? Rarely I'll bet.
You need to shoot for a short duration, high lift, wide LSA and fast ramp cam to keep the car feeling peppy.
Just my thoughts.
Jake
With 2.59s, how often will the engine actually see 3000/5000 RPMS?? Rarely I'll bet.
You need to shoot for a short duration, high lift, wide LSA and fast ramp cam to keep the car feeling peppy.
Just my thoughts.
Jake
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Race Director
Joined: Sep 2004
Posts: 13,793
Likes: 0
From: St. Peters MO Sometimes you have to prove yourself by doing alot of killing or alot of dying...
Personally I'd call Competition or any other brand name cam co. that had EFI grinds and ask them what they recommend. If you are honest and tell them everything about your car with no 
: they will sell you the perfect cam for the car.
: they will sell you the perfect cam for the car.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Originally Posted by JAKE
Your rear end gear ratio is another one of the concerns in camshaft selection. Too much cam and the car will feel like a dog with 2.59s.
With 2.59s, how often will the engine actually see 3000/5000 RPMS?? Rarely I'll bet.
You need to shoot for a short duration, high lift, wide LSA and fast ramp cam to keep the car feeling peppy.
Just my thoughts.
Jake
With 2.59s, how often will the engine actually see 3000/5000 RPMS?? Rarely I'll bet.
You need to shoot for a short duration, high lift, wide LSA and fast ramp cam to keep the car feeling peppy.
Just my thoughts.
Jake
Bingo!
Drifting
Joined: Oct 2001
Posts: 1,759
Likes: 0
From: Round Rock,Austin, Texas
I have pretty close to the same setup except I have 3.54 gears and I am currently installing a new comp cam.
Thunder racing has them on sale right now for cheap and you can get them custom ground.
http://www.thunderracing.com/catalog...vid=11&pcid=51
Mine is the 5th down. I had it ground to 114 so it would idle a little better.
Thunder racing has them on sale right now for cheap and you can get them custom ground.
http://www.thunderracing.com/catalog...vid=11&pcid=51
Mine is the 5th down. I had it ground to 114 so it would idle a little better.
Pro
Joined: Nov 2004
Posts: 698
Likes: 1
From: louseyville Ky
Originally Posted by RadPolo96
I have pretty close to the same setup except I have 3.54 gears and I am currently installing a new comp cam.
Thunder racing has them on sale right now for cheap and you can get them custom ground.
http://www.thunderracing.com/catalog...vid=11&pcid=51
Mine is the 5th down. I had it ground to 114 so it would idle a little better.
Thunder racing has them on sale right now for cheap and you can get them custom ground.
http://www.thunderracing.com/catalog...vid=11&pcid=51
Mine is the 5th down. I had it ground to 114 so it would idle a little better.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Originally Posted by redbullapril23
I am running ls1 springs though..
what about the 846 cam? to big?
does anyone have dyno sheets for the different cams they are running for close to stock cars with different cams?
what about the 846 cam? to big?
does anyone have dyno sheets for the different cams they are running for close to stock cars with different cams?
Pro
Joined: Nov 2004
Posts: 698
Likes: 1
From: louseyville Ky
Originally Posted by kwik_ta
Personally I'd call Competition or any other brand name cam co. that had EFI grinds and ask them what they recommend. If you are honest and tell them everything about your car with no : they will sell you the perfect cam for the car.
: they will sell you the perfect cam for the car.
That is good advice. This is what I did. Just call them and tell them what you have or what else you are getting and make sure you have someone who knows there stuff. Feel them out with a few questions. They are there to help and do this every day for a living.
Thread Starter
Drifting
Joined: Aug 2004
Posts: 1,830
Likes: 1
From: atlanta Georgia
awesome I will call them tomm!
I would love to have 3.73s
but!!!!
I dont trust dana 36!
If i go new gears Id get a dana 44 then go to 3.73s
hmmm should I wait until I get new gears to get a cam?
thanks alot your friend
Sean
I would love to have 3.73s
but!!!!
I dont trust dana 36!
If i go new gears Id get a dana 44 then go to 3.73s
hmmm should I wait until I get new gears to get a cam?
thanks alot your friend
Sean