Thread: LSA and Idle

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Would a 275 duration 477 lift cam idle smoother with a 110 lsa or with 108 lsa? Will one or the other cause the idle speed to be higher? Which would make more power in a 9.5 to 1 305?
The 305 is bored .030 over with ported, polished and gasket matched stock heads with 981-16 comp springs and 1.94 and 1.5 valves and 600cfm edelbrock carb on a weiand x-cellerator intake, what size stall would you recomend with either cam?
Going through turbo 400 tranny and 3.43 gears.

the 110 lsa may idle better but the 108 lsa will make more torque so this may work better in some thing thats is a heavy vehicles or with a auto trans hard to say on the stall how heavy is the vehicle there is many thing that can work on the stall but i would say 2500 stall

Originally posted by pat mccarthy
the 110 lsa may idle better but the 108 lsa will make more torque so this may work better in some thing thats is a heavy vehicles or with a auto trans hard to say on the stall how heavy is the vehicle there is many thing that can work on the stall but i would say 2500 stall

YEAH WHAT PAT SAID

The engine will be in a 82 Scottsdale/Silverado, do you think the 108lsa would be a better choice to make good torque in the truck? not planning on racing or anything just want to feel a little more torque/power from the engine, stock the engine will only spin the tires for about 1 to 2 feet from a dead stop.

Originally posted by dcurtis
The engine will be in a 82 Scottsdale/Silverado, do you think the 108lsa would be a better choice to make good torque in the truck? not planning on racing or anything just want to feel a little more torque/power from the engine, stock the engine will only spin the tires for about 1 to 2 feet from a dead stop.

i like the 106 to 108 on small hi tq engines but the 110 may be more smooth at very low rpms and if it will run at very low rpms and need to ilde good you may want the 110 .hard for me to say i do not know what you need this engine to do?

I really just want the engine to have descent hp-tq numbers for a 305, I also want it to have that hopped up engine crackle to it at idle, the truck is only driven about two times a week so I want which ever cam will give me the most power up to-but preferably no more than 6000 rpm's, I want the cam to be streetable with a 2600 stall as I have a brand new B&M 2600 stall still in the box.
Is there any specific cam you or anyone else would reccomend for that? I can go to about .500 lift.

max torque 1300/5500 .449/.449-224/224 lsa1081 part no 112431 howards the rpm band will start higher up than with the max torque 1200/5800 465/467225/235 112lsa part no112581 so you need to find were you will be at in finale grear driving it speed if you put to much cam in it it will be a slug