can someone explain gearboxes to me?
09 December 2008, 08:45 AM
#1
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can someone explain gearboxes to me?
sooo much talk of straight cut gears, and dog boxs about im just wondering wtf is the difference between these and a normal manual box - and what are the benefits of them?
all i know is one whines!
all i know is one whines!
09 December 2008, 08:50 AM
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Road car gearboxes have the teeth cut at an angle (15 degrees I think) which cuts down on the noise they make - but it does sap power. Racing boxes are cut straight across so they are noisy as **** but you do get a free power increase. They are usually stronger as well.
A dog box means no synchro so also stronger - but more tricky to use.
A dog box means no synchro so also stronger - but more tricky to use.
Last edited by Mother Theresa; 09 December 2008 at 08:56 AM.
09 December 2008, 09:34 AM
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Yes but important to note that your engine doesn’t pump out more bhp
you just loose less transmitting it to the road
but I doubt you could live with a straight cut box on the road (its what gives the WRC cars their distinctive whine)
Too noisy -- if you want to experience what it would be like -- drive everywhere in reverse -- that’s straight cut!!
you just loose less transmitting it to the road
but I doubt you could live with a straight cut box on the road (its what gives the WRC cars their distinctive whine)
Too noisy -- if you want to experience what it would be like -- drive everywhere in reverse -- that’s straight cut!!
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11 December 2008, 10:52 AM
#9
yup - 6 speed or PPG straight cut works out roughly the same - straight cut more competition orientated as the whine will go through your head on the road, even though 5th is usually oem
Don't bother with either unless you're running 350bhp+ I've got a P1 standard gearbox and I'm running 440bhp/380 ftlb torque
Don't bother with either unless you're running 350bhp+ I've got a P1 standard gearbox and I'm running 440bhp/380 ftlb torque
Last edited by Fat Boy; 11 December 2008 at 10:54 AM.
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