1/4 mile drags, METH and TC LOCK SWITCH - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 10-23-2008, 04:03 PM Thread Starter
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1/4 mile drags, METH and TC LOCK SWITCH

I have been playing around taking off different ways with my truck to see which way is the fastest before I do some drags this weekend. I figured out that if I lock my TC at 30 mph it takes off really fast. Is this bad or can I lock it up at 25 mph ? I will be running 40% meth. I have it to start injecting at 10 psi of boost and then come on full at 18 psi of boost. Are those safe levels to be injecting 40% meth or can I lower it to come on all the way at 15 psi boost? All my mods are in my sig. If anyone has any pointers or thinks I should do something different just let me know. Im open to all suggestions. GARRETT

2010 F250 6.4 powerstroke lariat
8" bds lift with king shocks
37" toyos on 22's
sinister egr delete, 5" exhaust with rbp tip, afe intake, river city diesel 585 tune
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2010 Mastercraft X35 saltwater edition

2012 Polaris RZR S on 31's


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post #2 of 6 Old 10-23-2008, 05:02 PM Thread Starter
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Anyone? I really wanna know about when to have my injection coming on because Im running 40% meth. Or should I run less meth?

2010 F250 6.4 powerstroke lariat
8" bds lift with king shocks
37" toyos on 22's
sinister egr delete, 5" exhaust with rbp tip, afe intake, river city diesel 585 tune
Recon Lighting

2010 Mastercraft X35 saltwater edition

2012 Polaris RZR S on 31's


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post #3 of 6 Old 10-23-2008, 05:55 PM
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40% is the max I run... And I run my water at the same settings you are. Works great. Lock up your going to have to play with...

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #4 of 6 Old 10-23-2008, 06:47 PM Thread Starter
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thanks CSIPSD. I just didnt wanna have it coming on to soon and cause something to go wrong with my engine. So I guess me locking up my TC earlier than it normally does isn't bad for it. I remember reading somewhere that way to early will hurt it. I might try locking it at 25mph or so. I guess my tranny can only blow up!! haha

2010 F250 6.4 powerstroke lariat
8" bds lift with king shocks
37" toyos on 22's
sinister egr delete, 5" exhaust with rbp tip, afe intake, river city diesel 585 tune
Recon Lighting

2010 Mastercraft X35 saltwater edition

2012 Polaris RZR S on 31's


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post #5 of 6 Old 10-23-2008, 10:29 PM
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When I was running a drop-in turbo (38R) I'd throw my lock-up switch right as it was shifting to 2nd. Then I had Jody build my race tune to do that automatically. So my t/c loced during the 1-2 shift. Worked great for me.

With the big turbo I'm running now, t/c lock has to be much later, as to not snuff out the charger.

2002 LB7 Duramax
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post #6 of 6 Old 10-23-2008, 10:46 PM
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In the Buick Gn they were locked at the start when racing. But yes this is hard on the setup. I have too look and see what the diff was with it. I think was a few tenths in time. Just had to run a ground wire to it with a switch. Pretty much almost any car with a TC can be done. Works good as an engine brake too, BUT hard on things so keep that in mind.
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