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5 speed vs 6 for 1/4 mile?

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Old 06 February 2011, 05:11 PM
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wrx0211
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Default 5 speed vs 6 for 1/4 mile?

hi guys,ive got my 03 wrx running 340 sti engine 13.7 1/4 mile times at the moment but am considering goin 6 speed jdm,how much time would i loose or not due to the 6 speed bein heavier or would the better ratios even things out.thanks alot guys.
Old 06 February 2011, 05:21 PM
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dont think it'll make much difference, yeah you'll be able to launch harder but as you say the 6 speed is a lot heavier.

my best is 13.7 in my 53 remapped STI so i would wait until your box blows to change
Old 06 February 2011, 05:28 PM
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5 speed, less swapping cogs. Or better still, drag auto box.
Old 06 February 2011, 06:23 PM
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The 5 speed box is much much better for drag racing. Unless you find yourself a late hawkeye box then the 6 speed is too awkward for quarter miles..
Old 06 February 2011, 07:18 PM
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i have done both from my 5 speed and 6 speed box

the 5 speed box i had to nurse of the line but could hang the gears out (uk box)

the 6 speed you can give full beans on the launch but you got the weight and changes

but tbh the time i got was all around the 12.4 mark with the 5 and 6 speed box

darc

ps my option go for a 6 speed
Old 06 February 2011, 07:20 PM
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i love my new six speed (from a spec d hawkeye) should be crossing the line in fourth as third tops out at 90mph
Old 06 February 2011, 07:29 PM
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Upto 2005 the quickest out of the box subaru had a 6 speed box

Tony

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Old 06 February 2011, 07:37 PM
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Up to? Doesn't the fastest still have a 6 speed?
Old 06 February 2011, 07:45 PM
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Originally Posted by ScoobyDoo69
Up to? Doesn't the fastest still have a 6 speed?
That was the last figure I had seen from Subaru for the 2005 Spec C, I have not seen any more figures with 1/4 mile or terminal speeds since, so I cannot say if any more are quicker but the original Subaru figure from Subaru Japan was 1/4 in 13 dead at 108mph for a 280ps car

Tony
Old 06 February 2011, 07:52 PM
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Crazy quick for such low power
Old 06 February 2011, 08:07 PM
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Originally Posted by mickywrx
5 speed, less swapping cogs. Or better still, drag auto box.
How does a drag auto work compared to a std auto?
Old 06 February 2011, 09:24 PM
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mickywrx
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Originally Posted by andythejock01wrx
How does a drag auto work compared to a std auto?
I believe they drag auto's only have 2 forward gears, could be wrong though.

There was one on Ebay, from a good source, starting price was 4.5k.
Old 06 February 2011, 10:40 PM
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cheers guys,think ill be savin the pennies for a 6 speed asap as its stronger,then ill be able 2 go for more power 2.
Old 02 May 2011, 11:46 AM
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went for a 6 speed uk,took half second of my 1/4 mile.13.2@104.not great but better.lol.omex launch controller is next on my list.cheers guys.
Old 02 May 2011, 12:01 PM
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Originally Posted by wrx0211
hi guys,ive got my 03 wrx running 340 sti engine 13.7 1/4 mile times at the moment but am considering goin 6 speed jdm,how much time would i loose or not due to the 6 speed bein heavier or would the better ratios even things out.thanks alot guys.

a 13.7 for a car running 340???? No offence but that is slow. Either your car isn't 340 or your bogging down off the line.

Mine is a wrx running 322 on a 5 speed box and with a knacked turbo still managed 13.1 @ santa pod a month or so back.
Old 02 May 2011, 12:11 PM
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5 speed PPG... 450bhp 11.4@122mph still in 4th gear
Old 02 May 2011, 12:19 PM
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Originally Posted by birchy2010
a 13.7 for a car running 340???? No offence but that is slow. Either your car isn't 340 or your bogging down off the line.

Mine is a wrx running 322 on a 5 speed box and with a knacked turbo still managed 13.1 @ santa pod a month or so back.
ye im not 100% happy with that. 13.7@crail which is a crap strip,car was mapped by no other than andy forrest.would love to go to the pod and see how it would go there.
Old 02 May 2011, 12:29 PM
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I've managed 10.9 on the 1/4 with my UK Six speed.

I aim to significantly better that with a built 5 speed set up soon
Old 02 May 2011, 01:14 PM
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Are you going for the scoobyclinic gearset Daz
Old 02 May 2011, 01:29 PM
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yes I think so
Old 02 May 2011, 01:31 PM
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I ran low 13's with a 280 ish WRX (only change is exhaust and remap).

Kept getting 13.3's with 105 terminal, thats with a 5 speed Hawk... Just shows its also how you do the drag.
Old 02 May 2011, 01:46 PM
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Originally Posted by dazdavies
yes I think so
I'll be interested in seeing how it performs, been looking at one myself Daz
Old 02 May 2011, 02:40 PM
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Originally Posted by Anger
5 speed PPG... 450bhp 11.4@122mph still in 4th gear
In my wrx I change to 3rd at 65mph but I can't quite remember what I change to 4th at, I know it's over 100mph.

One of the quickest cars I ever had was a 1.3l Escort, I dropped a 1.6 engine in, a few breathing mods and kept the 4 speed gearbox, it went like a rocket and nothing could touch it! So long as you give it hell in 1st gear a longer ratio gearbox should smash short ratios.
Old 02 May 2011, 03:00 PM
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Originally Posted by RS_Matt
One of the quickest cars I ever had was a 1.3l Escort, I dropped a 1.6 engine in,.
So it was a 1.6l then?
Old 02 May 2011, 03:10 PM
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Originally Posted by Pack_Scoob
So it was a 1.6l then?
Dunno, came from a breakers, might have been a 1.6lx
Old 02 May 2011, 05:36 PM
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Originally Posted by RS_Matt
it went like a rocket and nothing could touch it!
You really havent been in a quick car have you fella?...That must of been all of about 80bhp...
Old 02 May 2011, 05:54 PM
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It was back in 90's when the only quick cars were Astra GTE's and Fiesta RS turbos, I'd maybe see the odd Cosworth been driven hard.

Put it this way I sold it for a 174bhp RS Turbo and the RS couldn't live with it, apart from at Junctions when the 1.6LX couldn't stop!

I guess I'm just a big believer in long ratios and they most really suit my style.
Old 02 May 2011, 06:25 PM
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Originally Posted by birchy2010
a 13.7 for a car running 340???? No offence but that is slow. Either your car isn't 340 or your bogging down off the line.
Ive done Crail, 250bhp PPP'd MY00 with 2 up, 13.9, think if your getting 13.7 your bogging the car down (i did it quite a few times).

Tony
Old 02 May 2011, 10:52 PM
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I managed 13.1 in my WR1 when it was standard, that was my first attempt at Santa Pod and with half a tank of fuel. You must be doing summit wrong to get 13.7 in a lighter car with more power.

Anders
Old 03 May 2011, 07:40 AM
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10.8 from a factory STi 6 5 speed box @ 132mph


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