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#1
28-08-2008, 19:07
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fitment queries?
hey guys, am wondering on the possibilities of fitting the gearbox off of a s13 (jap spec...SR20 not CA18) to my silvia, as im finding the CA18 box off the 13 bit short in 5th, dunno might just be the rev counter reading wrong but my car still pulls like a train when approaching redline and keeps on going past it, for fear of total destruction i was looking at somthing slighlty longer and remembered that my 180sx pulled 150mph (on my private race track officer!) at around the 6,000rpm mark. i dont think my 12 would reach that speed but would be nice to know that im not gonna terminally injure the engine if i get to carried away on a high speed test!!
any info greatfully recieved.
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S13 running gear, independent rear suspension, coilovers all round, il post a thread sometime...when i get a chance!! 
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#2
28-08-2008, 23:15
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the UK SR20 boxes have a shorter 5th than the UK DET boxes, so its unlikely to be longer. the silvia mk1 and 2 boxes are identical ratios to the UK s13 DET boxes.
can you not just run a different diff ratio for greater top speed?
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 Racing is life. Everything else, before and after, is just waiting. - Steve McQueen
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#4
29-08-2008, 17:15
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ha ha ha!
I have the vlsd out of a jap 180sx, so i dunno what the final drive is on that.... rolling on 15's at present as the rubber is cheaper and i have quite a few part worns for drifty drifty!! maybe i should just get a lighter pair of shoes or just take the lead out of my right boot!! 
__________________
S13 running gear, independent rear suspension, coilovers all round, il post a thread sometime...when i get a chance!!
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