Timing Gears
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Timing Gears
I have a 1992 F150 4x4 and I was wondering if the stock timing gears in these trucks are retarded 4 degrees? I know that the 400/351M are retarded 4 degrees and I have swapped the gears out in them before and ran them straight up with a noticable difference.
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Joined: Feb 2003
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From: Muskegon, MI (home)
From what I understand degreeing a 300 to straight up helps a whole bunch with low end. Does it also help or hinder mid and top range power? I have been interested in doing this to my truck for a while.
Postmaster
Joined: May 2002
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From: Broken Arrow, OK
Your 300 has top end power? 
I doubt that it will matter much since the entire practical operating range for the 300 is really considered the low end. Ford retarded the cams in the 460 as well and moving them back to straight up is supposed to help everywhere below 5500 rpm. Whether or not it really does is anybody's guess. If I ever get a free weekend I'm going to put the straight up gears in my truck and go back to the dyno. Once I get the gears changed I can go about testing some of my other stuff.
I doubt that it will matter much since the entire practical operating range for the 300 is really considered the low end. Ford retarded the cams in the 460 as well and moving them back to straight up is supposed to help everywhere below 5500 rpm. Whether or not it really does is anybody's guess. If I ever get a free weekend I'm going to put the straight up gears in my truck and go back to the dyno. Once I get the gears changed I can go about testing some of my other stuff.
Postmaster
Joined: Feb 2003
Posts: 3,441
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From: Muskegon, MI (home)
Originally Posted by Silver Streak
Your 300 has top end power? I doubt that it will matter much since the entire practical operating range for the 300 is really considered the low end. Ford retarded the cams in the 460 as well and moving them back to straight up is supposed to help everywhere below 5500 rpm. Whether or not it really does is anybody's guess. If I ever get a free weekend I'm going to put the straight up gears in my truck and go back to the dyno. Once I get the gears changed I can go about testing some of my other stuff.
I doubt that it will matter much since the entire practical operating range for the 300 is really considered the low end. Ford retarded the cams in the 460 as well and moving them back to straight up is supposed to help everywhere below 5500 rpm. Whether or not it really does is anybody's guess. If I ever get a free weekend I'm going to put the straight up gears in my truck and go back to the dyno. Once I get the gears changed I can go about testing some of my other stuff.
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