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USIC USGT 2016 Motor and Chassis list in qualifing order

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 J.M. TSR. 15 Xray
17
18 R.C. TSR T4
19 M.K. Reedy Powered M3 AE TC7
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
50
51
52
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55

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Old 08-11-2014, 02:16 PM
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Originally Posted by John Wallace2 View Post
Did anyone help you? That would be on the high side of what I would let my motors go (with a fan). Experts don't agree on the max temp for motors. Some say in the 160 -170 range others in the 170 to 180 range. but probably all would agree that 185 is pushing it. Motor timing gives you more RPM & AMP Draw and more AMP draw gives you heat. Is there any way to check the amp draw at the timing you have set in the motor (or just check the ESC temp and or check to see how much battery you consume during and calculate the amp draw)? If ESC wasn't hot too, do you have to run that FDR for your class? These brushless motors don't like to over rev, so if the ESC wasn't hot, I'd add gear and check the temps FREQUENTLY. If the motor temps don't drop, take the motor apart and see if there is anything inside that is binding (grit, bad bearing, etc.). Lowest FDR I've heard of in USGT is 4.25 with the high revving R1 motor on a small track, everything else seems to be in the 3.0 to 4.0 range. 5.5 FDR is really low. At least that's my experience. Hope that helps
Thank you John, your info really helped.

I've since installed a better Integy single fan heat sink, like the one below, and temps are down to around 150. The Integy heat sink and fan I was using was a different style and it wasn't doing very well.



Haven't checked the Hobbywing V3.1 esc temps yet, will check them this weekend. I am getting ready to try some gearing combos to reduce the heat, but I don't want to sacrifice speed. My first test will be to reduce the pinion size by 1 tooth, that should help a lot.

Not sure why we have a 5.5 FDR rule here....but that's what they're doing so to play I must comply.

Thanks again,
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Old 08-11-2014, 05:51 PM
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John cant wait for you to come back racing.
Was coming off the track 175 + so i had to get a fan, the cheap Integy fan was a joke but I do like the heat sink.. called my buds at Superior Hobbies for the F5 fan since I couldnt find any R1's. USGT rocked last Sat.

☆frankie p☆

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Old 08-11-2014, 05:55 PM
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That car has a little too much toe out that has to be 5 I would check that on a setup station.IMHO
Originally Posted by OttoKrosse View Post
Thank you John, your info really helped.

I've since installed a better Integy single fan heat sink, like the one below, and temps are down to around 150. The Integy heat sink and fan I was using was a different style and it wasn't doing very well.



Haven't checked the Hobbywing V3.1 esc temps yet, will check them this weekend. I am getting ready to try some gearing combos to reduce the heat, but I don't want to sacrifice speed. My first test will be to reduce the pinion size by 1 tooth, that should help a lot.

Not sure why we have a 5.5 FDR rule here....but that's what they're doing so to play I must comply.

Thanks again,
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Old 08-11-2014, 06:00 PM
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Originally Posted by robk View Post
No matter what type of racing it is, people try to run trucks.
Originally Posted by robk View Post
(I will not be swayed!!!!!))
Trucks are fun.
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Old 08-11-2014, 06:12 PM
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Boy, that's a lot of toe-in. I run about 2 deg.
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Old 08-11-2014, 06:49 PM
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Originally Posted by vivo quevas View Post
That car has a little too much toe out that has to be 5 I would check that on a setup station.IMHO
It's just lens distortion making it look that way.
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Old 08-11-2014, 07:33 PM
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Originally Posted by vivo quevas View Post
That car has a little too much toe out that has to be 5 I would check that on a setup station.IMHO
It's an optical delusion, I've seen many pic that leave that impression with me too. Toe out is actually about 1-2 degrees tops. The pic was taken using the macro (close-up) setting which can distort the images.
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Old 08-11-2014, 07:41 PM
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Originally Posted by Mr.75MHz View Post
John cant wait for you to come back racing.
Was coming off the track 175 + so i had to get a fan, the cheap Integy fan was a joke but I do like the heat sink.. called my buds at Superior Hobbies for the F5 fan since I couldnt find any R1's. USGT rocked last Sat.

☆frankie p☆

I had the same Integy heat sink that you have with the Integy fan, it was very weak as you stated. The new Integy heat sink / fan is MUCH BETTER!! Dropped my temps by 25-30+ degrees.
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Old 08-11-2014, 08:08 PM
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Originally Posted by OttoKrosse View Post
Not sure why we have a 5.5 FDR rule here....but that's what they're doing so to play I must comply.
5.5 FDR? Maybe there's some intent on allowing Tamiya M-0x cars to run with y'all and be competitive?

Frankie, John, I'm looking forward to running with you guys again, but this weekend looks like we're racing off road. Lucas and I will make it down there for some asphalt action before too long!
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Old 08-11-2014, 09:50 PM
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Originally Posted by Mr.75MHz View Post
John cant wait for you to come back racing.
Was coming off the track 175 + so i had to get a fan, the cheap Integy fan was a joke but I do like the heat sink.. called my buds at Superior Hobbies for the F5 fan since I couldnt find any R1's. USGT rocked last Sat.

☆frankie p☆
Frankie I thought you retired from RC racing and went into bicycle racing. Depending on what the Doc says Wednesday, I'll at least come out to Al's this Saturday and do some bench racing. If I can go up/down the latter to the drivers stand, I may even race USGT and who knows what else. I was at the EOS race in Austin and came off at 170 after the 12 minute USGT main (with an R1 fan).

Last edited by John Wallace2; 08-11-2014 at 10:04 PM.
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Old 08-11-2014, 10:03 PM
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Originally Posted by OttoKrosse View Post
Thank you John, your info really helped.

I've since installed a better Integy single fan heat sink, like the one below, and temps are down to around 150. The Integy heat sink and fan I was using was a different style and it wasn't doing very well.



Haven't checked the Hobbywing V3.1 esc temps yet, will check them this weekend. I am getting ready to try some gearing combos to reduce the heat, but I don't want to sacrifice speed. My first test will be to reduce the pinion size by 1 tooth, that should help a lot.

Not sure why we have a 5.5 FDR rule here....but that's what they're doing so to play I must comply.

Thanks again,
I wouldn't worry too much about 150 degrees, so dropping a tooth now most likely will only slow you down. If you have to run 5.5FDR then get as close to 5.5 FDR as you can and get the largest possible legal tires you can find to maximize the rollout (how far the car rolls per motor revolution). Almost all spec tires are the same diameter repeart ALMOST ALL IF your ESC has a data logger check the RPM of you motor and let me know, if you aren't getting at least 15K rpm on the track.

Tamiya or TCXX chassis hard to tell in the photo?

Last edited by John Wallace2; 08-11-2014 at 10:23 PM.
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Old 08-11-2014, 11:59 PM
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Originally Posted by John Wallace2 View Post

Tamiya or TCXX chassis hard to tell in the photo?
I think its a TC6 variant
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Old 08-12-2014, 07:20 AM
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Originally Posted by John Wallace2 View Post
I wouldn't worry too much about 150 degrees, so dropping a tooth now most likely will only slow you down. If you have to run 5.5FDR then get as close to 5.5 FDR as you can and get the largest possible legal tires you can find to maximize the rollout (how far the car rolls per motor revolution). Almost all spec tires are the same diameter repeart ALMOST ALL IF your ESC has a data logger check the RPM of you motor and let me know, if you aren't getting at least 15K rpm on the track.

Tamiya or TCXX chassis hard to tell in the photo?
I'm running 2 TC6.2s chassis', 1 in 17.5 blinky and the other in Spec GT. The 5.5 ratio is giving me plenty of speed for that class so if I needed to drop down a tooth on the pinion I wouldn't loose much (5.51 to 5.66). Plus I need to try out different gearing to see if it would help me in our slow infield section.

Needless to say I was relieved to see the temp gauge under 160 degrees during this past weekends races.

Thanks for your input!!!
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Old 08-12-2014, 01:42 PM
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Originally Posted by robk View Post
No matter what type of racing it is, people try to run trucks. This drives me insane, since there are no trucks raced in any gt or prototype road racing events (nascar notwithstanding). Trucks at Lemans...?
((counting down the seconds until someone produces pictures of trucks at some full size event)(I will not be swayed!!!!!))
I'm getting the impression that you don't like the truck body idea. Seriously, don't hold back your feelings. Let us know what you think.


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Old 08-12-2014, 02:21 PM
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Originally Posted by robk View Post
No matter what type of racing it is, people try to run trucks. This drives me insane, since there are no trucks raced in any gt or prototype road racing events (nascar notwithstanding). Trucks at Lemans...?

((counting down the seconds until someone produces pictures of trucks at some full size event)(I will not be swayed!!!!!))
Mwahahahah. Real men race REAL trucks.

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