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My motor is a JDM D series, got a crower stage 3 cam and a full set of supertech valve springs for it. Wondering if I could get by using the stiffer (supertech) springs just only for the intake side and use stock intake (stiffer than stock exhaust) springs for exhaust. The reason for this is to reduce valve train friction as poss. When checked manually did not see any coil bind issues on the exhaust springs with this cam.

Any input on this will be appreciated
 

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measure the strength of the jdm d in. springs and compare to supertech or crower spring and that should help you make a decision.
 

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My motor is a JDM D series, got a crower stage 3 cam and a full set of supertech valve springs for it. Wondering if I could get by using the stiffer (supertech) springs just only for the intake side and use stock intake (stiffer than stock exhaust) springs for exhaust. The reason for this is to reduce valve train friction as poss. When checked manually did not see any coil bind issues on the exhaust springs with this cam.

Any input on this will be appreciated
If you have just use it, its worth the peace of mine.
Steven,

BTW, how much did you pay for the cam and springs?
 
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