speedy sie Posted June 18, 2012 Report Share Posted June 18, 2012 1st 2.375 (38/16) same as std zx7rr 2nd 2.000 (36/18) same as std zx7r 3rd 1.619 (34/21) same as std zx7r 4th 1.391 (32/23) same as std zx7r 5th 1.291 (31/24) not zx7r or zx7rr so could be kit 6th 1.103 (32/29) same as std zx7r looks like a mass of zx7r,zx7rr and kit part to make the gear box up,do the ratioes look ok?? Link to comment Share on other sites More sharing options...
porter_jamie Posted June 18, 2012 Report Share Posted June 18, 2012 Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 can you put it bit simpler please.. Link to comment Share on other sites More sharing options...
porter_jamie Posted June 18, 2012 Report Share Posted June 18, 2012 in fact, i think i would run the stock box, as it is only overall 60% from first to top, whereas running the 'factory' first gear makes the jump into 2nd 15%, then the jump into 3rd 19%. The so called factory ratios have a jump of 9% from 4 to 5, and then 14.5% to top, cannot be right. are you sure you have all the right bits? looking at various ratios people run, full on factory stuff tends to be overall (less than) 50%, and they have smaller and smaller gaps aas they go up the box. i can't be bothered to put any more piccys up as i cannot just cut and paste excel. Your 'standard' box has a nice spread of about 60%, and sensible gaps between the ratios, i would run that. Are you absolutely sure you have the correct information? Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 is the 5th gear wring in the set up ?? Link to comment Share on other sites More sharing options...
BudgetBoy Posted June 18, 2012 Report Share Posted June 18, 2012 http://www.gearingcommander.com/ Tis all you need Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 yep i have 4 gear box's out of zx7rr race bikes,three run just zx7r gears,one box is zx7rr with this odd 5th?? Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 the one this is the gears them selves are difrent diamiters to the zx7r gear box,as in teeth are diferent so i think the o/d will come in to this,if you look over the box the gear are quite close in o/d,but im no gear box expert.. Link to comment Share on other sites More sharing options...
porter_jamie Posted June 18, 2012 Report Share Posted June 18, 2012 http://www.novaracing.co.uk/kawasaki-zx10r-close-ratio-04-10.htm check out what these boys are doing, they supply most of the BSB grid. You defo want smaller gaps as you go up the box. Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 ill check over the numbers agine :icon_salut: and thank for the help Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 yep 24/31 5th,is it best to change to 33/27 then?/ Link to comment Share on other sites More sharing options...
Superdunc Posted June 18, 2012 Report Share Posted June 18, 2012 What Jamie said. the rev drops need to be smaller between the higer gears. With the 5th gear you've listed you will have to much of a rev drop when you change fro 5th to 6th. Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 yep can seen that,so now removing and fitting the 33/27 set up. Link to comment Share on other sites More sharing options...
speedy sie Posted June 18, 2012 Author Report Share Posted June 18, 2012 now sorted as to the spec above... Link to comment Share on other sites More sharing options...
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