Cam ?
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From: The city of Hewitt in Central Texas
Cam ? I am working on a budget so I wanted to see what everyone opinion is. I want a cam but i know I need an intake and headers also. How much will I choke my cam if I do the cam first? I want a TR224/224 LSA114. Is this too much cam for stock heads and intake? Can I get buy with just headers? Or will I need headers and intake? Any help will be appreciated! Mods in sig
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Joined: Apr 2003
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From: Miami
LT's alone will help.
TR224 is a great cam for stock heads.
If you want a cam that's designed for stock manifolds, check out Thunder's CheaTR cam. Works great with stockers, and with Long Tubes.
TR224 is a great cam for stock heads.
If you want a cam that's designed for stock manifolds, check out Thunder's CheaTR cam. Works great with stockers, and with Long Tubes.
The stock intake is ok to go, the cam i am running in my camaro is much larger, and will be ok. It's not that the LS1 intake manifold is HIGHLY restrictive or anything, its jsut that it doesnt sned the airflow as directly to the heads. The stock heads will be fine on several if not all the cams out there really. I would spring for a set of lt's however,or run w/o a catback, just the cam exhaust manifolds and Y pipe... if you can gut your stock cats, that could help as a temporary fix.
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Verdad Gallardo !LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
^ I think you're totally wrong.
Edit: I'll clarify.
I think it's impractical advice to tell people to drop their high flowing (hell, open plate is basically a cutout) Borla exhaust in search of a couple possible ponies.
Edit: I'll clarify.
I think it's impractical advice to tell people to drop their high flowing (hell, open plate is basically a cutout) Borla exhaust in search of a couple possible ponies.
Last edited by SouthFL.02.SS; Jan 15, 2006 at 01:13 PM.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
From JRP's sticky:
C. Lobe Separation Angle (LSA)
- LSA is defined as spread in camshaft degrees between the intake centerline and the exhaust centerline.
- Overlap is the number of crankshaft degrees that both the intake and exhaust valves are open as the cylinder transitions through the end of the exhaust stroke and into the intake stroke
- LSA is ground into the cam and cannot be changed without grinding a new cam
- Bigger duration cams will have more overlap then a smaller duration cam even if both are on the same LSA.
- The key to making overlap work is maximizing the power in the rpm band where you want it.
- Long overlap periods work best for high-rpm power. For the street, a long overlap period combined with long-duration profiles combine to kill low-speed torque
- Reducing overlap on a long-duration cam will often increase midrange torque at the expense of peak power, but if the average torque improves, that’s probably a change worth making.
- Many enthusiasts purchase a camshaft strictly on the basis of how it sounds. A cam with generous overlap creates that distinctive choppy idle that just sounds cool.
- While doing my research on the T1 I cam across this dyno in which if I recall Tony (Nineball) stated that the blue graph was a T1 (112 lsa) and the other 2 where a B1 (114) lsa. 112 vs. 114
- What really affects where the cam makes the most power is the intake timing events. What affects drivability most is the exhaust-closing event.
C. Lobe Separation Angle (LSA)
- LSA is defined as spread in camshaft degrees between the intake centerline and the exhaust centerline.
- Overlap is the number of crankshaft degrees that both the intake and exhaust valves are open as the cylinder transitions through the end of the exhaust stroke and into the intake stroke
- LSA is ground into the cam and cannot be changed without grinding a new cam
- Bigger duration cams will have more overlap then a smaller duration cam even if both are on the same LSA.
- The key to making overlap work is maximizing the power in the rpm band where you want it.
- Long overlap periods work best for high-rpm power. For the street, a long overlap period combined with long-duration profiles combine to kill low-speed torque
- Reducing overlap on a long-duration cam will often increase midrange torque at the expense of peak power, but if the average torque improves, that’s probably a change worth making.
- Many enthusiasts purchase a camshaft strictly on the basis of how it sounds. A cam with generous overlap creates that distinctive choppy idle that just sounds cool.
- While doing my research on the T1 I cam across this dyno in which if I recall Tony (Nineball) stated that the blue graph was a T1 (112 lsa) and the other 2 where a B1 (114) lsa. 112 vs. 114
- What really affects where the cam makes the most power is the intake timing events. What affects drivability most is the exhaust-closing event.