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Old TC Cars - Still Racing Competitively

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Old 11-07-2018, 03:39 PM
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Originally Posted by GuyIsDamGood View Post
I ran the(my) HPI Pro 4 and Tamiya Evolution 5 with Ni-MH and Li-Po batteries installed at my Fastest-Lap Challenge.

Pro 4 Fastest-Lap with Li-Po 5800mah 110c: 30.05
- - - - - - - - - - - - - - - - - - - with Ni-MH 3600mah: 31.53 (charged with a 4.3amp rate for 15-minutes; later with a regular charge)

Evolution 5 Fastest-Lap with Li-Po 5800mah 110c: 31.91
- - - - - - - - - - - - - - - - - - - - -with Ni-MH 3600mah: 32.56 (charged with a 4.3amp rate for 15-minutes; later with a regular charge)

I had to add some weight on the battery side on both chassis.

(I like the Ni-MH Batteries!)
Which Nimh did you use ??? The best nimh by far was the green smc 4600mah side by side pack, and you need to individually discharge each cell to 0.9volts before you individually charge them with the Spintec ICC charger: nimh is pain compared to lipo, but it can be just as fast, if not faster(no voltage limits)....Did you also run both cars at the same weight???
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Old 11-07-2018, 05:11 PM
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Originally Posted by TJD8521 View Post
You guys running TC3s. What size and pitch spurs and pinions are you running? Most of the guys running newer chassis are running FDRs in the 3s. Is that possible with the TC3?
For 48 pitch, either 55/35 or 60/38. Robinson for the spurs, pinions will be aluminum above 35T.
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Old 11-07-2018, 07:23 PM
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Originally Posted by Kevin Marcy View Post
For 48 pitch, either 55/35 or 60/38. Robinson for the spurs, pinions will be aluminum above 35T.
Any recommendation for 64 pitch? I have both, but I know the pinion size is limited with the way the motor is mounted.
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Old 11-07-2018, 08:56 PM
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Originally Posted by TJD8521 View Post
Any recommendation for 64 pitch? I have both, but I know the pinion size is limited with the way the motor is mounted.
If you know the tooth count for the 48p gear you want to convert to 64p, just multiply by 64/48. So a 55T 48p spur would be a 73T 64p spur. I know Robinson Racing does 48p gears of that size, I don't know of any 64p spurs in that range.

The lowest I've gone in FDR in my TC3 was 3.2 using 52/41 (48p)
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Old 11-07-2018, 10:19 PM
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You can go 49t spur with 41t pinion for 2.98fdr in a tc3, but there will not be much gearing flexibility and not much infield punch either.....
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Old Yesterday, 06:17 PM
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Hey bertrandsv87.

The Ni-MH battery I run/use is the Duratrax 3600mah (they run strong with a higher charge rate. . . . . . .so-far).
(I charge my Ni-MH batteries with the Graupner EX1400. . . . . . .my son charged my Li-Po batteries with the HiTec X1 Pro)

I added weight (11 grams - front and rear) to the chassis when the Li-Po batteries were installed until I had the ride height (6mm); compared to when Ni-MH batteries are installed.

I haven't weighed the Tamiya Evolution 5 or HPI Pro 4; with all electronics.

Last edited by GuyIsDamGood; Yesterday at 06:28 PM.
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Old Yesterday, 06:47 PM
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The duratrax 3600mah are perfect for nitro starter box, but can't come close to competing with Smc 4600mah Energ cells with side by side configuration and charged/discharged individually.....Too bad they don't make them anymore....
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Old Today, 11:32 AM
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This thead was started in 2011.

Many cars that were new then are now old.

Would it be worth talking about to wonder if a 1st gen XRAY T3 is still competitive with the lastest gen XRAY T4?
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