HO Cam Advance
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HO Cam Advance
Just wanted to mention - I put a new timing set and water pump on my truck, and while I was in there I took a stab at advancing the cam timing.
Used a Ford Racing adjustable timing set from summit racing - crank gear has notches so that it can be installed 2,4,6,or 8 degrees advanced or retarded, plus straight up. Total of 9 notches on the crank gear.
Installed the set with 4 deg advanced lined up, buttoned everything together.
It's no supercharger, but I would certainly recommend this change to anyone with a 302, stickshift, and the roller cam (351 firing order). It tames the hot cam a bit and brings the torque curve down to a more usable rpm. Off-idle power is much, much improved (I have a ZF5 with 3.55 gears and 33" tires), engine note is a little deeper. The power gain is gone around 2000 rpm, from 2000 - 3500 it seems about the same, however the motor seems to run out of breath a bit earlier than before. Not that I often rev over 4k, so I don't mind it one bit.
If you have an automatic, you won't notice much with this change, because the engine is never below 2000 rpm when you have the pedal down.
Used a Ford Racing adjustable timing set from summit racing - crank gear has notches so that it can be installed 2,4,6,or 8 degrees advanced or retarded, plus straight up. Total of 9 notches on the crank gear.
Installed the set with 4 deg advanced lined up, buttoned everything together.
It's no supercharger, but I would certainly recommend this change to anyone with a 302, stickshift, and the roller cam (351 firing order). It tames the hot cam a bit and brings the torque curve down to a more usable rpm. Off-idle power is much, much improved (I have a ZF5 with 3.55 gears and 33" tires), engine note is a little deeper. The power gain is gone around 2000 rpm, from 2000 - 3500 it seems about the same, however the motor seems to run out of breath a bit earlier than before. Not that I often rev over 4k, so I don't mind it one bit.
If you have an automatic, you won't notice much with this change, because the engine is never below 2000 rpm when you have the pedal down.
