Launching - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 10 Old 10-04-2008, 06:47 AM Thread Starter
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Launching

hey guys i just came back from the track and i got some bad times. my best run (1/8 mi) was a 9.5 with a 2.1 60ft and that was with the performance tune that came with my livewire. All of my runs i launched at 2000rpm and used 4wd. ill spin and have bad wheel hops on all tires. i even did a small 2wd burnout, then put it into 4wd for the launch. anybody know what im doing wrong?

2007 F-250 Lariat 6.0L CC/SB/FX4
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4in TB MBRP Exhaust -Straight Pipe
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post #2 of 10 Old 10-04-2008, 11:19 AM Thread Starter
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any help is appreciated

2007 F-250 Lariat 6.0L CC/SB/FX4
Mods:
SCT Livewire w/ Innovatives Extreme Race Tune
4in TB MBRP Exhaust -Straight Pipe
AFE Stage 2 XP
Zoodad Mod
Cfm+ Smallmouth
Fass 95 series system
ARP Studs
Pyro, Boost gauges
Exterior Apperance:
Ranch Hand Grill Guard
Alien Hide Spray-In Bed Liner
Tool Box/55gal Fuel Tank
305/60/18 Dick Cepek Fun Country
Pro Comp Series 1079 Wheels
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post #3 of 10 Old 10-04-2008, 12:14 PM
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I have always heard not to do a burnout first. It heats your rears and give uneven traction to the front and rear on a 4x4 launch, which could cause things to break.

Nick, BPS Historian
1995 F-250 4x4 7.3 Powerstroke
Isspro Gauges, Tony Wildman Tunes, PSGH Stage 1 Injectors, Early 99 Intercooler, ATS Stage 6 E4OD, TCI Tranny Cooler, Snow Water/Meth, Traction Bars, EBPV Brake, TC Lockup Switch, Spray-on Liner, K&N Intake w/ NAPA 6637 Filter, 3" downpipe, 5" mitre stacks.
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post #4 of 10 Old 10-04-2008, 12:35 PM
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have you tried lowering tire pressure any? you may want to launch at 10 psi boost instead of 2000 rpm, i would think at that engine speed you would have too much boost. i am not sure this is correct but it seems logical to me. hopfully someone with more track time will chime in and we can both learn something. you may want to consider removing some weight spare tire, skid plates, tailgate and run on less than 1/4 tank to get those e.t.'s down when you hook up you should loose about 2 or 3 tenths without the weight.
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post #5 of 10 Old 10-04-2008, 01:04 PM
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Yep, it sounds like you had too much boost built. Mine will burn all 4 tires as long as I stay in the throttle if I launch above 15 PSI. Try a power brake in 4wd, and as soon as you hit 15 PSI, floor it and let go of the brake. That will give your best launch with no wheel spin. To really get some better times, get some custom tunes too.


2006 F-250 Powerstroke Crew Cab Lariat Long Bed 4x4 FX4

SCT Xcal2 with Xtreme tunes by Innovative

Banks Monster Exhaust/Quadzilla Commander

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post #6 of 10 Old 10-04-2008, 08:15 PM
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the last time i was at the track i did a little burnout and launched at 2100 and pulled a 1.57 60ft and i got alot of wheel hop and torque steer

09 F250 CCSB Tuned by Eric, Trans built by Craig at MPD, DPC Converter, MPD S476 Single, Stage 2 Colt Cam, 100% MPD Inj., RCD Dual Fuelers, ARP's,20X12 Fuel Mavericks, 11.31@120 on fuel, 11.05@124 on a baby shot, 911hp fuel only
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post #7 of 10 Old 10-05-2008, 09:10 AM
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06lariatf250 what kind of time did the 1.57 60 ft get you? that is low. i see you have a crew cab. is it long or short bed and did you go 1/8th or 1/4 mile? i ask cause i plan on running this week 1/8th and would like to see what times i should expect.
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post #8 of 10 Old 10-05-2008, 09:15 AM
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never do a burn out when your launching 4x4
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post #9 of 10 Old 10-05-2008, 10:24 AM
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Quote:
Originally Posted by GM Duraturd View Post
I have always heard not to do a burnout first. It heats your rears and give uneven traction to the front and rear on a 4x4 launch, which could cause things to break.
Sounds right, but I think the front would always have more traction in a pickup since the back is light.


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post #10 of 10 Old 10-05-2008, 12:03 PM
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i went 13.9 i forgot the mph and i have a short bed

09 F250 CCSB Tuned by Eric, Trans built by Craig at MPD, DPC Converter, MPD S476 Single, Stage 2 Colt Cam, 100% MPD Inj., RCD Dual Fuelers, ARP's,20X12 Fuel Mavericks, 11.31@120 on fuel, 11.05@124 on a baby shot, 911hp fuel only
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