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USIC USGT 2016 Motor and Chassis list

TQ A.F. TSR A800
2nd D.J. TeamPowers A800
3rd B.S. TSR A800
4th M.L. TSR A800
5th M.F TeamPowers A800
6th D.J TSR Destiny
7th J.W. Trinity Monster '17 Xray
8th C.V TSR Destiny
9 A.C. TSR A700
10 B.K. R1 v15 A700
11
12
13 J.L. TSR A800
14 M.L. TSR Destiny
15
16
17
18 R.C. TSR T4
19
20 S.J. TSR Destiny
21
22 E.S. motiv T4
23
24
25
26 P.D. TSR Destiny
27
28
29
30 V.P. Reedy M3 serpent 3.0
31
32
33
34
35 Y.B. Fantom A800
36
37
38 R.C. TSR A800
39
40 W.S. Reedy
41
42
43 Motiv xray
44
45
46 Motiv Xray
47
48
49
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53
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Old 01-31-2013, 06:28 PM   #841
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Sometimes you need to go to a bigger pinion to actually keep the car from over revving. BL motors, especially high winds, have a lot more torque. It's not like stock motors in the old days, too small a pinion is just as bad as too big.
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Old 01-31-2013, 06:42 PM   #842
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I've gotta try something before I hurt my motor, as it is now if I developed a small bind issue in a run it would prob cook itself. I'll do like you said and temp it every minute and see what happens. I already use the largest spur and pinion that will fit in the car when I choose a ratio to go with. My T4 (VTA) has a 106/53 in it now

SS, what kind of difference in lap times are yall seeing between GT and TC?
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Old 01-31-2013, 07:07 PM   #843
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We tried the same thing tonight with a motor that did not necessarily like the gearing of the motor it replaced. Went from a 4.1 to a 3.8. Much cooler temps, but are no were near the super low 3's some have mentioned. This was going from a SS to a ballistic.
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Old 01-31-2013, 07:10 PM   #844
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Rob K, seriously thank you for the constructive input on the topic and without feeling the need to tell us how many National, Regional, local titles or TQ positions you have taken in the last year to make a point. LOL

Alloyslash - Now that the GT cars are geared properly the difference between them and 17.5 TC is .7 - 1.0 sec per lap.
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Old 01-31-2013, 07:14 PM   #845
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Originally Posted by SS LS1 View Post
Rob K, seriously thank you for the constructive input on the topic and without feeling the need to tell us how many National, Regional, local titles or TQ positions you have taken in the last year to make a point. LOL

Alloyslash - Now that the GT cars are geared properly the difference between them and 17.5 TC is .7 - 1.0 sec per lap.
I heard that...lol
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Old 01-31-2013, 07:22 PM   #846
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Rob K, seriously thank you for the constructive input on the topic and without feeling the need to tell us how many National, Regional, local titles or TQ positions you have taken in the last year to make a point. LOL

Alloyslash - Now that the GT cars are geared properly the difference between them and 17.5 TC is .7 - 1.0 sec per lap.
Hey, DON'T FORGET THE ROW OF PICS too!! roflmao
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Old 01-31-2013, 07:28 PM   #847
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Rob K, seriously thank you for the constructive input on the topic and without feeling the need to tell us how many National, Regional, local titles or TQ positions you have taken in the last year to make a point. LOL

Alloyslash - Now that the GT cars are geared properly the difference between them and 17.5 TC is .7 - 1.0 sec per lap.
Rob K has won something?
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Old 01-31-2013, 07:46 PM   #848
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Matt was .1-.2 faster running 3.3 but his consistency wasn't as good between fast lap and avg .( it was harder for min to run fast and efficient. But with the 3.75 FDR his lap times r way closer together
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Old 01-31-2013, 08:19 PM   #849
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I am in NO way looking for more speed. My entire issue is with the heat I'm getting with the gear I'm running now. I am not able to drive the car smooth and efficiantly yet, so I am getting some heat that a smoother/more experienced driver wouldn't.
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Old 01-31-2013, 08:44 PM   #850
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I am in NO way looking for more speed. My entire issue is with the heat I'm getting with the gear I'm running now. I am not able to drive the car smooth and efficiantly yet, so I am getting some heat that a smoother/more experienced driver wouldn't.
I think the D3.5 21.5 is just a motor that runs hot. I have one and so does another guy I race with and they both run really hot. I geared mine at 4.36 FDR with max timing at it was coming off the track at 180deg. If I went any lower on the FDR it would just get hotter and really slow down if I took timing out of the motor it just ran slower and was still hot.

I run my SP 21.5mmm at 4.26FDR and it runs at 170deg all day.
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Old 01-31-2013, 09:33 PM   #851
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I think the D3.5 21.5 is just a motor that runs hot. I have one and so does another guy I race with and they both run really hot. I geared mine at 4.36 FDR with max timing at it was coming off the track at 180deg. If I went any lower on the FDR it would just get hotter and really slow down if I took timing out of the motor it just ran slower and was still hot.

I run my SP 21.5mmm at 4.26FDR and it runs at 170deg all day.
Kevin have you tried going up on gearing with the D3.5? There is a sweet spot to it. I keep mine around 160 degrees. I have found either way you go it can cause changes.
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Old 01-31-2013, 09:37 PM   #852
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Old 01-31-2013, 09:43 PM   #853
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Kevin have you tried going up on gearing with the D3.5? There is a sweet spot to it. I keep mine around 160 degrees. I have found either way you go it can cause changes.
You have a 21.5 D3.5?

The D3.5 21.5 is nothing like the 17.5 every 21.5 that I have seen or heard about runs really hot....must be something with the wire they used in the 21.5...
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Old 01-31-2013, 10:26 PM   #854
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I've gotta try something before I hurt my motor, as it is now if I developed a small bind issue in a run it would prob cook itself. I'll do like you said and temp it every minute and see what happens. I already use the largest spur and pinion that will fit in the car when I choose a ratio to go with. My T4 (VTA) has a 106/53 in it now

SS, what kind of difference in lap times are yall seeing between GT and TC?
Sorry to butt in, but with that gearing, you're running an fdr of 5:1. I would think smaller spurs (80's - low 90's) is what you're looking for, not larger. Unless I'm reading it wrong.
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Old 02-01-2013, 12:17 AM   #855
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A 106/53 combo in an XRay T3 and T4 comes out to a 3.8fdr (106/53x1.9). I posted that as an example of how I run the largest spur/pinoin combos, while still achieving the desired ratio. A rule of thumb with the XRay's 1.9 internal ratio is that for every 2 teeth you go up, or down in spur size, you can match it with a 1 tooth change on pinion and achieve the same ratio.

106/53
104/52
100/50
96/48
92/46

All of those combos will net a 3.8fdr. I normally run a 3.6 in my VTA, but went up because I'm racing at a smaller track this weekend.

I'll go with a 96/55 combo (3.32fdr) and see where it gets me next week at Thunder R/C
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