Custom camshafts Experts Help!
06-17-2008, 03:46 PM
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Custom camshafts Experts Help! I have a bolt on Camaro & i want to use big shots of Nitrous (Max 300hp)
I need a custom cam for my application.
What do you guys recommend?
I need a custom cam for my application.
What do you guys recommend?
06-17-2008, 05:42 PM
#5
Calling Comp is a HORRIBLE idea, nobody knowledgable sits there answering the tech lines, you will get some goober who just looks at a computer screen with the right catalogue page opened for the engine and all their RPM ranges are WAY off for the LT1.
Head flow is going to be a big problem trying to shove a 300 shot through. Untouched heads are unlikely to allow any gains beyond about 175, maybe 200 which is about all the rings will take anyway before the endgap butts closed and destroys pistons, the block and everything else.
Ported heads and regapped rings and guys have gone to about 280 in two stages but that is quite a gamble and is done vaguely well wouyld put you into the 10s easily meaning extra safety gear and such you are probably not ready for.
Basically stick to a smaller shot and with a smaller shot there is no need to consider the nitrous when picking the cam. Only reason to do a 113LSA for a small nitrous shot or NA would be for emissions purposes.
Head flow is going to be a big problem trying to shove a 300 shot through. Untouched heads are unlikely to allow any gains beyond about 175, maybe 200 which is about all the rings will take anyway before the endgap butts closed and destroys pistons, the block and everything else.
Ported heads and regapped rings and guys have gone to about 280 in two stages but that is quite a gamble and is done vaguely well wouyld put you into the 10s easily meaning extra safety gear and such you are probably not ready for.
Basically stick to a smaller shot and with a smaller shot there is no need to consider the nitrous when picking the cam. Only reason to do a 113LSA for a small nitrous shot or NA would be for emissions purposes.
06-17-2008, 10:33 PM
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Calling Comp is a HORRIBLE idea, nobody knowledgable sits there answering the tech lines, you will get some goober who just looks at a computer screen with the right catalogue page opened for the engine and all their RPM ranges are WAY off for the LT1.
Head flow is going to be a big problem trying to shove a 300 shot through. Untouched heads are unlikely to allow any gains beyond about 175, maybe 200 which is about all the rings will take anyway before the endgap butts closed and destroys pistons, the block and everything else.
Ported heads and regapped rings and guys have gone to about 280 in two stages but that is quite a gamble and is done vaguely well wouyld put you into the 10s easily meaning extra safety gear and such you are probably not ready for.
Basically stick to a smaller shot and with a smaller shot there is no need to consider the nitrous when picking the cam. Only reason to do a 113LSA for a small nitrous shot or NA would be for emissions purposes.
Head flow is going to be a big problem trying to shove a 300 shot through. Untouched heads are unlikely to allow any gains beyond about 175, maybe 200 which is about all the rings will take anyway before the endgap butts closed and destroys pistons, the block and everything else.
Ported heads and regapped rings and guys have gone to about 280 in two stages but that is quite a gamble and is done vaguely well wouyld put you into the 10s easily meaning extra safety gear and such you are probably not ready for.
Basically stick to a smaller shot and with a smaller shot there is no need to consider the nitrous when picking the cam. Only reason to do a 113LSA for a small nitrous shot or NA would be for emissions purposes.
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06-18-2008, 01:12 PM
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Calling Comp is a HORRIBLE idea, nobody knowledgable sits there answering the tech lines, you will get some goober who just looks at a computer screen with the right catalogue page opened for the engine and all their RPM ranges are WAY off for the LT1.
Head flow is going to be a big problem trying to shove a 300 shot through. Untouched heads are unlikely to allow any gains beyond about 175, maybe 200 which is about all the rings will take anyway before the endgap butts closed and destroys pistons, the block and everything else.
Ported heads and regapped rings and guys have gone to about 280 in two stages but that is quite a gamble and is done vaguely well wouyld put you into the 10s easily meaning extra safety gear and such you are probably not ready for.
Basically stick to a smaller shot and with a smaller shot there is no need to consider the nitrous when picking the cam. Only reason to do a 113LSA for a small nitrous shot or NA would be for emissions purposes.
Head flow is going to be a big problem trying to shove a 300 shot through. Untouched heads are unlikely to allow any gains beyond about 175, maybe 200 which is about all the rings will take anyway before the endgap butts closed and destroys pistons, the block and everything else.
Ported heads and regapped rings and guys have gone to about 280 in two stages but that is quite a gamble and is done vaguely well wouyld put you into the 10s easily meaning extra safety gear and such you are probably not ready for.
Basically stick to a smaller shot and with a smaller shot there is no need to consider the nitrous when picking the cam. Only reason to do a 113LSA for a small nitrous shot or NA would be for emissions purposes.
Thanx
06-21-2008, 04:07 PM
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gear, weight, stall and shift RPM are all important too.
I am guessing 350-355 cubes, 3300 lbs with driver, 4500 stall and 6600-6800 RPM shift point, 150-200 shot of nitrous, I would use a cam with a low-mid 230 duration on intake with about 6-8 degrees more on exhaust and an LSA around 108.
If you are using a 300 shot and want it to run on nitrous more so than N/A, add about 2-4 degrees larger on exhaust and widen the LSA 2 degrees.
Lift is more about what springs you are using, how long you want them to last as well as what rockers, pushrods, retainer weight, etc you are using.
Lloyd Elliott
972-617-5671
I am guessing 350-355 cubes, 3300 lbs with driver, 4500 stall and 6600-6800 RPM shift point, 150-200 shot of nitrous, I would use a cam with a low-mid 230 duration on intake with about 6-8 degrees more on exhaust and an LSA around 108.
If you are using a 300 shot and want it to run on nitrous more so than N/A, add about 2-4 degrees larger on exhaust and widen the LSA 2 degrees.
Lift is more about what springs you are using, how long you want them to last as well as what rockers, pushrods, retainer weight, etc you are using.
Lloyd Elliott
972-617-5671
06-24-2008, 12:29 PM
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Its not me doing the 300shot im asking about a custom cam for My Brother's.
We don't go to the Track we Race on the Streets.We have 3 LT1s Doing 300 shots but only when there is a serious Car Challenging them & its for money ofcource & usually those are the guys with Ferrari's & Porchees who think they can never be beaten by LT1s
& they get smacked
We don't go to the Track we Race on the Streets.We have 3 LT1s Doing 300 shots but only when there is a serious Car Challenging them & its for money ofcource & usually those are the guys with Ferrari's & Porchees who think they can never be beaten by LT1s
& they get smacked
06-24-2008, 02:19 PM
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