Originally Posted by
suzukipro
I copied this from an excel spreadsheet so the format is bit off, but it shows the FDR using 15 - 21 Tooth pinions for the EB48.1-3 and for the new gearing used in the EB48.4.
TEKNO FDR EB48-.3
Pinion - FDR
15 - 11.73333333
16 - 11
17 - 10.35294118
18 - 9.777777778
19 - 9.263157895
20 - 8.8
21 - 8.380952381
TEKNO FDR EB48-.4
Pinion - FDR
15 - 9.768
16 - 9.1575
17 - 8.618823529
18 - 8.14
19 - 7.711578947
20 - 7.326
21 - 6.977142857
I was using a 17t pinion on my .3 and dropped to a 15t on my .4 and my temps were a bit out of control 160deg with a heatsink and a fan on it.
My motor is a T8i 1950kv. Hoping I can fit a 14t, it should bring the FDR back to the same as my .3 was.
This got me to thinking, what is the benefit of the new ring/pinion ratio if I am gearing it to the same FDR anyway? thanks.
Edit: Also I noticed the new body fits a lot tighter around the front and back. so there is less air getting into and out of the car, this may be a big factor in my motor temps.