Drag Racing Tech - TP4400 guys...

you locking up your converter at the end of the 1/4? just wondering. any gains? just looking for anything to help with the bolt on race

Chris

I don't think anyone that tried has reported any measurable/repeatable gains.

Good Luck

LAter <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

thanks Bob <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> just worked on my old vig3200, so wanted to see if anyone else tried it <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Chris

Terry burger got 2MPH from locking his TP4400
I have wired in a LU switch with a momentary switch just to see if it helps?It was worth 1.5MPH on my PI3800 too.

JS

I dont lock my 4500, but then again I'm not that fast. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Might help with MPH, but from what I have read, doesn't do squat for the ET. If it does, let me know, I'll get one on. Good luck.

Black Sunshine...

with my vig3200, i went 12.79 @ 104, to a 12.65 @ 106 w/ the same 1.71 60fts one pass after another, and then did it again with the same results(or close enough to). But that is a little slower than you were going and with a stock motor. you could try it. hopefully it would work for you. i do know it would get over powered on spray though.

Chris

From what I have read, the vigilante converters aren't very effecient up top and that is the cause for the significant gains when you lock them up. Yanks are more effecient than vigilante up top which is why you dont have to lock them up. Thats what makes some Yank converters great converters from a punch(roll)...

I asked Mike at Yank about one for my PT4200 and he said DO NOT do it.. Didn't really elaborate, just that it wouldn't help me any.

I tried it on both my Vig3600 and UT4800 with no gains in ET or MPH. I did only have 3.23 gears at the time so with more gear I might have seen a little MPH improvement.

Paul