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-   -   How do you burn out before dragging (https://www.rx7club.com/race-car-tech-103/how-do-you-burn-out-before-dragging-167523/)

Richierich 03-17-03 09:42 PM

How do you burn out before dragging
 
I have a set of M/t street drag tires, I ran once with out a burn out (12.4 at 109 at 12 psi)

Set the psi to 18 and did a long burn out with holding my left foot on the brake and the right foot on the gas at about 5000 rpm for about 5 to 10 seconds. When I started...POP! my differential blew out a hole the size of a silver dollar on my rear end.

Should I not burn out, or am I doing it wrong, or do I need a aftermarket rear end?


opinions please?

jeremy 03-18-03 10:20 AM

ive heard that the 3rd gen diffs do this quite frequently with decent power upgrade and sticky tires. i'd search in the 3rd gen section on rearends.

GeTCrAzYKiD 03-25-03 11:51 AM

i would go with an aftermarket diff, or import one off an RZ or another japanese model..but thats just me..

efiniracing 03-26-03 12:21 PM

I did the same thing only I made it through the burn out then when the light turned green and I launched and I got nothing. When the track guy pushed me back I heard all kinds of things falling to the ground. When I got out and looked underneath I saw a hole in the rear end housing about the size of a hocky puck. Turns out that my rear end broke mainly cause I didn't maintain it right. The gear oil was old and I hadn't changed it. Ever! From what I gather, if your making around 300 hp you can still run on a stock set up. If you got 350hp or more then you should get racing componants before you break everything.


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