17.5 BL gearing in xray T2
Hi all,
i have searched hard for info on this subject in threads but couldnt find it, but i bet its been asked before, sorry:p i have an old (pre '007) T2 xray and a 17.5 BL novak motor. novak says 3.5 FDR but what are people using and how do you get it (spur/pinion) in a T2. Also, what is the internal drive ratio. Applogies if this is somewhere else. Thank you in advance |
Internal ratio is 1.7. Start with something like a 3.9 FDR. For 64p, Xray makes down to a 104t, though you can't reach the really low FDRs with that spur.
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thanks adamge,
are you talking for rubber tires (ie 63mm)? are there any after market suppliers of small 48p spurs that fit the T2? thanks again |
Yes, rubber tires. The numbers I mentioned won't be perfect, but they should get you started. Have some pinions larger than what you need to arrive at that FDR, because there's a decent chance you'll need them.
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so has anyone used the kimbourgh spurs in the xray t2. I found a 76 tooth 48p one that would give me the right FDR but will I have to machine it? ah well i think i may be the first person to have done this crazy gearing that novak recomends in a T2.....i will let evryone know when I find the solution.
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Originally Posted by Finite Racing
(Post 5006354)
so has anyone used the kimbourgh spurs in the xray t2. I found a 76 tooth 48p one that would give me the right FDR but will I have to machine it? ah well i think i may be the first person to have done this crazy gearing that novak recomends in a T2.....i will let evryone know when I find the solution.
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Originally Posted by ercwhtsd
(Post 5007077)
The Associated/Kimbrough goes down to 69T in 48P, Kimbrough part number #150 or ASC3921. You will have better luck going to 64P, with gearing down to 76T by PRS and 74T by RW Racing.
cheers |
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