110 LSA cam with 2.73 gears...
04-03-2006, 08:15 AM
#1
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Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
110 LSA cam with 2.73 gears...
I currently have a 350 in the garage with a 210/215 (@ .050") roller cam. I want to put the engine back together and throw it in the car.
Right now the engine is mismatched as far as cam and compression...too much cam and not enuf compression. At this point I'm going to get a new cam to match the pistons I have, or use the 210/215 cam with new flat top pistons.
If I use the current cam with new ~9.5:1 pistons, am I going to regret it with 2.73's?
Right now the engine is mismatched as far as cam and compression...too much cam and not enuf compression. At this point I'm going to get a new cam to match the pistons I have, or use the 210/215 cam with new flat top pistons.
If I use the current cam with new ~9.5:1 pistons, am I going to regret it with 2.73's?
04-04-2006, 11:20 PM
#2
The LSA doesn't really mean much without the duration @ 0.050" data. Stock TPI cams were as low as 108° LSA, but the durations were something near 190° and 200°, so overlap was nearly nonexistant.
It's tough to call based on one specification only.
It's tough to call based on one specification only.
04-05-2006, 04:16 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Originally Posted by V8Astro Captain
It's 210/215 (@ .050") 110°LSA .465"/.480" lift
04-05-2006, 07:44 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
What is it going into? The Caprice or the Astro? If the it is going into the caprice it should work fine. It is a little too much for the Astro's aerodynamics with 2.73 gears.
04-05-2006, 08:06 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Originally Posted by Fast355
What is it going into? The Caprice or the Astro? If the it is going into the caprice it should work fine. It is a little too much for the Astro's aerodynamics with 2.73 gears.
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04-05-2006, 08:58 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Originally Posted by 305q_ta86
Sorry but what does LSA stand for? It's the lobe separation, right?
04-06-2006, 07:29 AM
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Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
ME Leigh...I believe the adv. duration is 284/288 but I'm not 100% sure.
Fast355...haha you caught me
It's going into the Caprice.
The cam did have a little rump to it, but nothing I would call wild.
I have a set of worked 083 heads that I want to use on this engine. Unless I can sell the 350 and put a Weiand 142 on the LG4 lol.
Fast355...haha you caught me
It's going into the Caprice.The cam did have a little rump to it, but nothing I would call wild.
I have a set of worked 083 heads that I want to use on this engine. Unless I can sell the 350 and put a Weiand 142 on the LG4 lol.
Last edited by V8Astro Captain; 04-06-2006 at 07:33 AM.
04-06-2006, 03:00 PM
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Originally Posted by V8Astro Captain
ME Leigh...I believe the adv. duration is 284/288 but I'm not 100% sure.
Fast355...haha you caught me It's going into the Caprice.
The cam did have a little rump to it, but nothing I would call wild.
I have a set of worked 083 heads that I want to use on this engine. Unless I can sell the 350 and put a Weiand 142 on the LG4 lol.
Fast355...haha you caught me
It's going into the Caprice.The cam did have a little rump to it, but nothing I would call wild.
I have a set of worked 083 heads that I want to use on this engine. Unless I can sell the 350 and put a Weiand 142 on the LG4 lol.
04-06-2006, 08:08 PM
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Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
True...it may be lazy but lazy is how I like it. I like the engine to come on like a ton of bricks all the way up to 5000 rpm.
The roller cam I had in my '92 van was 196°/206° @.050 .431"/.451" 109°LSA. It was the stop light king with 3.42 gears. I love the way it drove. The 196/206 cam is the alternative to the one listed above.
The roller cam I had in my '92 van was 196°/206° @.050 .431"/.451" 109°LSA. It was the stop light king with 3.42 gears. I love the way it drove. The 196/206 cam is the alternative to the one listed above.
04-06-2006, 10:06 PM
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Originally Posted by V8Astro Captain
True...it may be lazy but lazy is how I like it. I like the engine to come on like a ton of bricks all the way up to 5000 rpm.
The roller cam I had in my '92 van was 196°/206° @.050 .431"/.451" 109°LSA. It was the stop light king with 3.42 gears. I love the way it drove. The 196/206 cam is the alternative to the one listed above.
The roller cam I had in my '92 van was 196°/206° @.050 .431"/.451" 109°LSA. It was the stop light king with 3.42 gears. I love the way it drove. The 196/206 cam is the alternative to the one listed above.
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