max lift allowable still keeping factory l92 springs
01-20-2011, 11:43 PM
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max lift allowable still keeping factory l92 springs hey guys i have been searching for a couple hours to find the answer to this question.
what is the largest cam specs i can install in an l92 while still keeping the factory valve springs. i know i will probably have to change pushrods but im ok with that. if u could tell me the correct pushrod length that would be greatly appreciated.
what is the largest cam specs i can install in an l92 while still keeping the factory valve springs. i know i will probably have to change pushrods but im ok with that. if u could tell me the correct pushrod length that would be greatly appreciated.
01-21-2011, 04:50 PM
#3
hey guys i have been searching for a couple hours to find the answer to this question.
what is the largest cam specs i can install in an l92 while still keeping the factory valve springs. i know i will probably have to change pushrods but im ok with that. if u could tell me the correct pushrod length that would be greatly appreciated.
what is the largest cam specs i can install in an l92 while still keeping the factory valve springs. i know i will probably have to change pushrods but im ok with that. if u could tell me the correct pushrod length that would be greatly appreciated.
01-22-2011, 08:40 AM
#4
The stock LS3 springs support a stock cam at ~.550 lift. However, aftermarkter cams, even something like mild XE lobes are faster ramp rates than the stock cam. Its not only lift, it's the lobe profile you need to consider.
IMO, limiting yourself to slower, lower lift lobes in order to run stock springs is leaving power on the table for the wrong reasons. Moderately priced springs will allow you many more options and provide better HP and TQ for a given amount of overlap at .006.
IMO, limiting yourself to slower, lower lift lobes in order to run stock springs is leaving power on the table for the wrong reasons. Moderately priced springs will allow you many more options and provide better HP and TQ for a given amount of overlap at .006.
01-22-2011, 01:49 PM
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thank you guys. my guy decided to listen to what i told him and is gonna do it correctly with cam, springs and correctly measured pushrods. along with a very mild clean up port job. mostly to the exhaust side.
this is going into a desert race truck so reliability is key hoping for around 500-600 crank hp.
this is going into a desert race truck so reliability is key hoping for around 500-600 crank hp.
