How Much TIMING
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How Much TIMING
how much timing are you guys running on your 5.0 pickups initial and total and when it's all in by right now i have mine running 8*initial and i think 36* all in but i forget it's set to be all in at 2800 i was thinking bumping up the initial to 10-12* or maybe higher depending on what you guys think
motor specs:
Adv. Duration: 300 intake/ 310 exhaust
Duration @ .050: 224 intake and 234 exhaust
Valve lift: .496 intake and .520 exhaust
Lobe C/L: 112
Flowtech Long Tube Headers
2.5in exhaust turbo mufflers
Ported E7 heads
RPM Air Gap Intake manifold
Holley 570 Street avanger w/ jet extentions
Pro Billet HEI Dissy with a Mallory Coil
Ford Motorsport Plug Wires
NOS powershot system 125shot (i'm gona pull out about 5* of timing before i spray it)
3500 stall converter AOD trans
3.73 gears detroit lockers all around 33in all terrains
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motor specs:
Adv. Duration: 300 intake/ 310 exhaust
Duration @ .050: 224 intake and 234 exhaust
Valve lift: .496 intake and .520 exhaust
Lobe C/L: 112
Flowtech Long Tube Headers
2.5in exhaust turbo mufflers
Ported E7 heads
RPM Air Gap Intake manifold
Holley 570 Street avanger w/ jet extentions
Pro Billet HEI Dissy with a Mallory Coil
Ford Motorsport Plug Wires
NOS powershot system 125shot (i'm gona pull out about 5* of timing before i spray it)
3500 stall converter AOD trans
3.73 gears detroit lockers all around 33in all terrains
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Joined: Nov 2008
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From: houston
When I had the 5.0 in my `90 truck I had it at 12 deg. most of the time.With the new 393 I have it up to 17 but I`m putting octane booster in w/premium Shell gas and it seems to run crisper.I just kept advancing it until I found the sweet spot
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From: iowa
first octane boosters is a scam, better off buying premium. Now your old school camshaft bleeds off more compression than a stock one. It results a lower dynamic compression ratio and thats whats important for fuel requirements, not the static compression. Having your timing all in by 2800 may need some more octane.
I also would increase the timing, do you use any vac advance?
I also would increase the timing, do you use any vac advance?
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From: iowa
i would try to get up around 16-20 inital if i was you, as long as it restarts warm.
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yeah i tried 12* initial today and it ran great but i need to adjust something because it detonates when i take my foot off the throttle or make the transition from three quarter throttle to half throttle i think maybe my carb is out of adjustment just by a littlebit
and the more timing i give it the worse it gets
and the more timing i give it the worse it gets
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Postmaster
Joined: Jul 2003
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From: iowa
yeah i tried 12* initial today and it ran great but i need to adjust something because it detonates when i take my foot off the throttle or make the transition from three quarter throttle to half throttle i think maybe my carb is out of adjustment just by a littlebit
and the more timing i give it the worse it gets
and the more timing i give it the worse it gets
I take it you are running some lighter springs in your dizzy. You may be stuck with 8 degrees since you have it coming in so fast. heavy vehicles don't like the timing so as a lighter car would.
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yeah i'm realizing that with the converter (3500 stall) i have in the truck it isn't a problem at all and has really good power and everything till i get in 3rd with the converter locked up and the secondaries open, when i let off the throttle the secondaries close and i can feel detonation so i'm thinking about putting some heavier springs in it and running all in at 3000 or 3200
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