Feel like it should be much faster - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 03-23-2012, 05:05 PM Thread Starter
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Feel like it should be much faster

I ran 10.20 in 8th mile last night. 4x4 boosted launch. Sems slow for all thats done?

boost, pyro, egt, an fuel psi gauges, fass 150 55psi, fuel tank sump, regulated return, fuel bowl delete, Terminator t500, swamps gen3, irate wastegated t4 kit, billet s475, 400cc400%, fluidamper, swamps girdle, block filled, manley h beam rods, mhale cut/coated pistons, gear heads stage 2 sled series cam, ported an polished heads, fire rings, h11 head studs, swamps springs, swamps push rods, php hydra, precision convertor, suncoast internals, billet shafts, bts valvebody, detroit truetrac.
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post #2 of 5 Old 03-23-2012, 05:37 PM
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On that 7.3?
Fuel pressure might be a little low? I'd bump it up near 65 or higher, unless you tried that and it likes that pressure. Stock injectors and canned tunes I assume?



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
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post #3 of 5 Old 03-23-2012, 05:42 PM Thread Starter
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Im running 90 psi an yes canned tunes

boost, pyro, egt, an fuel psi gauges, fass 150 55psi, fuel tank sump, regulated return, fuel bowl delete, Terminator t500, swamps gen3, irate wastegated t4 kit, billet s475, 400cc400%, fluidamper, swamps girdle, block filled, manley h beam rods, mhale cut/coated pistons, gear heads stage 2 sled series cam, ported an polished heads, fire rings, h11 head studs, swamps springs, swamps push rods, php hydra, precision convertor, suncoast internals, billet shafts, bts valvebody, detroit truetrac.
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post #4 of 5 Old 03-23-2012, 06:38 PM
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Oh ok, sig said 55.
Not sure what else to suggest. Maybe the spool up time is slow cause of the bigger exhaust housing?



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
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post #5 of 5 Old 04-10-2012, 11:01 AM
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Sounds about right to me. Maybe you should have been a touch faster. But the amount of fuel you had in the tank, humidity, track conditions, how much boost you was launching at, all have a role. I would think your setup should be in the 9.7-9.8 range. My buddies 02 7.3 CCSB on stock tires and wheels runs consistent 10 flats. He broke a 9.98 once. It is DP 5 position tuner, intake, 4 inch exhaust, shimmed fuel pressure spring. And that was launching in 4 high as hard as he could get it to spool every time.



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