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Gear ratio guru's

Posted: Sun Jan 05, 2014 8:33 pm
by GreenyUK
Ok folks can some explain this to me it's all a bit boggling for my simple mind :lol:
Was sat here bored so thought I'd compare gear ratios between 4g prelude and the CTR as on the road there doesn't seem much between them.

So the prelude.
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And the CTR
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Now I thought lower ratio means more torque to wheels and thus faster acceleration? So the Lude should have it beat.
Even more so for the M2B4 lsd box.

Please be gentle if I'm wrong and sound like a tool. :lol:

Posted: Sun Jan 05, 2014 9:36 pm
by CrunchyAdams82
@Merlin, @mercutio

These guys know about gear ratio shizzle. ;)

Posted: Sun Jan 05, 2014 9:44 pm
by Merlin
GreenyUK wrote:Now I thought lower ratio means more torque to wheels and thus faster acceleration?
The higher the number = the shorter the gear.

Posted: Sun Jan 05, 2014 10:12 pm
by GreenyUK
Merlin wrote:The higher the number = the shorter the gear.
:lol: you've just blown my mind. Ok so a higher number means shorter gear but more torque so faster acceleration? Lol

Posted: Sun Jan 05, 2014 10:28 pm
by mercutio
but don't forget the relative weights of the vehicles yes the lude has lower gearing but the ctr has lower weight so it kind of evens it out

Posted: Sun Jan 05, 2014 10:59 pm
by GreenyUK
I thought preludes were lighter 1230kg vs ctr at 1246kg ?

Posted: Sun Jan 05, 2014 11:04 pm
by RattyMcClelland
Depends on the prelude but generally ludes are heavier. Also civic have a 6 speed box and shorter ratios.

Posted: Sun Jan 05, 2014 11:17 pm
by GreenyUK
Ah right I didn't know. Well yes that will help lol.

Posted: Sun Jan 05, 2014 11:30 pm
by prelude91
and torque, like bhp is an absolute, measured normally at the crank, and is not dependant on gear ratios, I believe.

Posted: Mon Jan 06, 2014 1:24 pm
by GreenyUK
Ok yeah that makes sense.

Well thank you all for your answers :)