Fast shifting

1320 feet of adrenaline
manualshift
Senior Standardshifter
Posts: 160
Joined: Tue May 19, 2009 2:36 am
Cars: 2010 Mazda 3 Sport GS

Fast shifting

Postby manualshift » Thu Jun 11, 2009 8:41 pm

Is fast shifting necessary when drag racing, and i mean something like

http://www.youtube.com/watch?v=L-99Ghk3 ... re=related
Image

Rope-Pusher
Master Standardshifter
Posts: 10567
Joined: Mon Mar 16, 2009 3:44 pm
Cars: '08 Jeep Liberty
Location: Greater Detroit Area

Re: Fast shifting

Postby Rope-Pusher » Thu Jun 11, 2009 11:38 pm

^ Yes, if you are serious about it, since every shift is an interruption in the time you have to apply power, sew ewed knead too shipht fassed two redoose the interruption time.
'08 Jeep Liberty 6-Speed MT - "Last of the Mohicans"

User avatar
Leedeth
Master Standardshifter
Posts: 7469
Joined: Sun Feb 04, 2007 9:33 am
Location: Suburbia

Re: Fast shifting

Postby Leedeth » Fri Jun 12, 2009 1:45 am

You only need to shift as fast as how fast the RPM falls to the target RPM in the next gear.

Like, if your target RPM is 5000, then you need to be ready to clutch out slightly before that.

Wait.

You can get extra power by shifting fast and using the momentum of the engine, while dragging the RPMs down, to further boost the car's speed.

So I guess you need to shift as fast as possible.

User avatar
mad_finn
Senior Standardshifter
Posts: 452
Joined: Thu May 07, 2009 4:42 pm
Cars: Cevrolet Caprice STW (at)
Location: Vantaa Finland

Re: Fast shifting

Postby mad_finn » Fri Jun 12, 2009 2:05 am

And in low power wehicles, wich dosen't have enough power to cause wheelspin, you can keep full throttle while you are shifting.
it will cause similiar effect to this
Leedeth wrote:You can get extra power by shifting fast and using the momentum of the engine, while dragging the RPMs down, to further boost the car's speed.
So I guess you need to shift as fast as possible.

only bit stronger, and RMP's dont fall aslow like thy would here, but causes greater risk to brake your differential, gearbox, and engine.
13litre engine, 18 speed manual, total weight 36tons.11 years on the road,700k.miles driven

User avatar
theholycow
Master Standardshifter
Posts: 15990
Joined: Tue Jun 24, 2008 1:36 pm
Cars: '80 Buick LeSabre 4.1 5MT
Location: Glocester, RI
Contact:

Re: Fast shifting

Postby theholycow » Fri Jun 12, 2009 8:47 am

I imagine that fast everything is necessary in drag racing.
1980 Buick LeSabre 4.1L 5MT

Put your car in your sig!

Learn to launch/FAQs/lugging/misused terms: meta-sig
watkins wrote:Humans have rear-biased AWD. Cows have 4WD


Return to “Drag Racing”

Who is online

Users browsing this forum: No registered users and 1 guest