Competition 1/4 mile and WEIGHT

[thekidfan]

I seem to remember hearing something like a tenth of a second per 100#'s, is that a "general rule o thumb?

What brings this up is I saw "a guy" run a 12. 62@ 108mph recently on #2 only. And he had front AND rear winch bumpers WITH winches plus a toolbox full o tools in the bed and big mud tires. Curiousity (sp) is driving me nuts

 

[PetesonM]

That is the general rule of thumb and has been very accurate on the cars I have built. Though once past the 11. 99 mark it seams to be less accurate. After that it takes a bit more power or weight reduction to get the . 010.



12. 6 and a good MPH with an extra 4-5 hundred pounds on the truck makes me think this guy has just a wee bit of power under there.

 

[Dockboy]

At our wieght, it generally works out more to 0. 1 sec. for every 200 lbs

 

[TJSHOTROD]

I seem to remember hearing something like a tenth of a second per 100#'s, is that a "general rule o thumb?

What brings this up is I saw "a guy" run a 12. 62@ 108mph recently on #2 only. And he had front AND rear winch bumpers WITH winches plus a toolbox full o tools in the bed and big mud tires. Curiousity (sp) is driving me nuts

Where did you see it at?

 

[TAlbiston]

I'm at 250-300lbs per . 10!

 

[JasonCzerak]

I can shake off 400# of dead weight and fuel for a race (7050-ish)



But, when I leave the truck stop I"m at 7450-ish...



It sure doesn't feel like it's . 400's slower.

 

[rockjeep73]

I agree with TAlbiston.

Jeff, I emailed you about the turbo, let me know if your still interested.

 

[Cowpunk]

Ok my question kinda has to do with wieght. When I was at our local drive train shop picking up my new clutch the guy there said I should put an aluminum drive shaft on. He said that less rotating mass = a lot more power. Is this true, will it make a differance?

 

[thekidfan]

Where did you see it at?

Samoa (sp) drag strip up in Eureka. He was just havin' a good time, I think I was more excited then he was . Now if I could just get him on the scale :-laf