Chops Posted February 18, 2016 Share Posted February 18, 2016 Ive got a dilemma here! i have a white starlet shell i intend to build up in the near future to a good 300 odd hp, and a green all original project that im in the process of converting to manual. for these two cars i have a c63 from a mk7 celica, and a c52 with a mechanical lsd from my old advance, and ive no idea which gearbox should go in which car lol.Is the c63 tough enough to deal with a good bit of power, or should it go in the green car so i can put the known to be pretty tough c52 in the white? Is it a waste to put a mechanical lsd into a bone stock car? I need some advice! Quote Link to post Share on other sites
daniel_g Posted February 18, 2016 Share Posted February 18, 2016 C52 in the shell and C63 in the green MK2 Quote Link to post Share on other sites
Chops Posted February 19, 2016 Author Share Posted February 19, 2016 Thats what i wanna do, just voicing concern peeps might not think putti g a 6 speed in is sympathetic to the cars nature. Found the c63 has a silly tall final drive, how interchangeable are flthe final drives in c series boxes? Quote Link to post Share on other sites
5e colin Posted February 20, 2016 Share Posted February 20, 2016 6 speed sucks on a turbo you will lose some of its torque feeling turbos like longer gears Quote Link to post Share on other sites
Chops Posted February 20, 2016 Author Share Posted February 20, 2016 the c63 has much taller gears than the c52, the final drive is way lower Quote Link to post Share on other sites
5e colin Posted February 20, 2016 Share Posted February 20, 2016 c63 is close ratio no ?? 4.3 or 4.5fd Quote Link to post Share on other sites
pockrockgtti Posted February 20, 2016 Share Posted February 20, 2016 driveshaft splines are different on c63, in comparison to c52/c56. Quote Link to post Share on other sites
Chops Posted February 21, 2016 Author Share Posted February 21, 2016 (edited) are they? would it be as easy as using the outside cups from the celica driveshafts on the starlet shafts? Edited February 21, 2016 by Chops Quote Link to post Share on other sites
pockrockgtti Posted February 21, 2016 Share Posted February 21, 2016 i dont know all i know is the splines are different. 23 teeth on a c5x vs 20 c6x Quote Link to post Share on other sites
Chops Posted February 21, 2016 Author Share Posted February 21, 2016 heres another thought, the selector arms are mounted on top of the gearbox instead of the back of it like the starlet's, will I need to convert it or could i get away with leaving it where it is? i don't think it fouls anything, can anybody shed any light on it! Quote Link to post Share on other sites
Chops Posted February 24, 2016 Author Share Posted February 24, 2016 Someone must have an idea surely. By the look of things the splines are actually part of the diff unit itself, if i swap the diff out for a uk starlet's diff, will it sort the spline issue out? Quote Link to post Share on other sites
pockrockgtti Posted February 24, 2016 Share Posted February 24, 2016 the diffs are a different widths aswell Quote Link to post Share on other sites
pockrockgtti Posted February 24, 2016 Share Posted February 24, 2016 129mm c5x vs 136mm c6x also the diameter of the crown wheel is different aswell Quote Link to post Share on other sites
Chops Posted February 24, 2016 Author Share Posted February 24, 2016 (edited) I need a diff the right size and with the right spine count too then. Edited February 24, 2016 by Chops Quote Link to post Share on other sites
pockrockgtti Posted February 24, 2016 Share Posted February 24, 2016 Get a 6 speed c160 out of a levin bzr, if you want the 6 speed swap the bellhousing over. Or do what i did, take the lsd out of the c160 and fit it in the C5x. Quote Link to post Share on other sites
Phil Posted February 24, 2016 Share Posted February 24, 2016 Get a 6 speed c160 out of a levin bzr, if you want the 6 speed swap the bellhousing over. Or do what i did, take the lsd out of the c160 and fit it in the C5x.Could you fit the c63 gearset to the c160 box and fit the c52 bellhousing ?That what I want to know lolPhil Quote Link to post Share on other sites
Chops Posted February 24, 2016 Author Share Posted February 24, 2016 (edited) My c52 has a mechanical lsd in it, i was going to just swap it over to my c63 as i read up that they were the same. I dont want a c160 as ive heard from many places now that theyre made of chocolate and dont like power. So i couldnt just dump the c52 lsd in the c63 and keep its og ring gear? I wonder if i could just use celica driveshafts? Edited February 24, 2016 by Chops Quote Link to post Share on other sites
pockrockgtti Posted February 24, 2016 Share Posted February 24, 2016 I think you would need a lot of modifications, even the diameter of the bearings either side of the diffs are different between the two. Even the pcd of the diffs are diffrent so you couldnt even swap the ring gear from one diff to the other without modification. the c5x is 8x131mm, c6x is 8x140mm. Quote Link to post Share on other sites
Chops Posted February 24, 2016 Author Share Posted February 24, 2016 well. theres some pretty heavy failure here lol. the saving grace would be if i could just use celica mk7 driveshafts, im trying to find some information on them now Quote Link to post Share on other sites
morgey Posted February 24, 2016 Share Posted February 24, 2016 Could always get stuff machined like the box holes on the ring gear and shim out the gearboxes to suit a smaller diff but then the shafts might not reach in far enough to lock. Quote Link to post Share on other sites
5e colin Posted February 25, 2016 Share Posted February 25, 2016 ^^^^ be cheaper then to just keep the c63 original and keer the inner cups and tripod bals and just get custom driveshafts made there is a crowd in holland that doos them for 300e a piece if i remember right Quote Link to post Share on other sites
morgey Posted February 25, 2016 Share Posted February 25, 2016 Conpany in uk that does them for £192 each. Quote Link to post Share on other sites
Chops Posted February 25, 2016 Author Share Posted February 25, 2016 Wouldnt the celicas inner cv joints fit on the starlet shafts? Just strip all the tripod gubbins off and chuck the celicas on? Thatd make things eisier! Quote Link to post Share on other sites
5e colin Posted February 25, 2016 Share Posted February 25, 2016 maybie ?? but does the c63 align in the same spot as the starlet box it might be like 10mm to the left or right visa versa you wont know till you actually slot your wan in there buy a used driveshaft from the c63 then you have al the info u need chops Quote Link to post Share on other sites
Chops Posted February 25, 2016 Author Share Posted February 25, 2016 Ill be grabbimg a couple of celica inner cvs and the correct bellhousing from a scrappys tomorrow, have a play with it all n see. Quote Link to post Share on other sites
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