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The mkiv Supra Owners Club

Auto Drag Racing Advice


hadyn

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Im going to attempt this at the pod on Sunday if I get to run in my auto.

 

1. OD off

2. MANU on

3. Engage 2nd gear from idle

4. Powerbrake to 2k rpm

5. Launch

6. Change into 3rd manually just before redline.

 

Do you think this will reduce my 1/4 through using the tried and tested technique of powerbrake and leave the car engaged in D with the OD off?

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Guest slow dog

practise your rpm on the line try and get the rpm as high as you can before the wheels start to spin i use low to start revs faster in low tubbies will spin up faster if the revs get up there faster = faster time

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Guest slow dog

the thing is i dont wanna sat ah dont worrie you will be ok then bangggggg

lol just dont hold her on the line forever let it all cool down dont do run after run

straight away and maybe all will be well mate

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As far as my experiences I'm pretty sure that the gearbox (only in MANU mode) will get itself into the gear you select as soon as its possible.

 

So:

 

You put it in second and as soon as your revs get to a point where the box thinks its good enough for 2nd to take over, it will change.

 

I lost a race like this a long while ago. think it changed up from 1st to 2nd at about 3000rpm! Very :limp:

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For drag strip i always put it in manu mode, then put it in 1st brake on heavy rev to about 2k, floor it off the line and change gear just before the limiter, managed a 12.55 on bpu with it :) very consitant aswell

 

blimey 12.55 is amazing ! what was the terminal time ?

 

was that at santa pod ? with normal street tyres ?

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terminal time ? 12.55 :p

speed has varied between about 112 and 119 think it was 118 on that run

12.56 was 119

its been at elvington and york dragway with normal tyres (cheapo nasty ones at that)

 

sorry mate i meant terminal speed but you answered that:drown:

 

my best (in a manual) is 13.1 @ 112. i'm bpu (327wbhp)

 

best i get practicing !:whistle:

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Mines quite a bit up on power compared to yours for both being bpu i know rolling roads give different readings but thats a massive difference mines 396@ hubs from thor or 398 summit like that cant remember now.

Practicing is fun though so get cracking :D

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