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Old 01-20-2014, 09:40 AM   #1
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Default USLMP Racing Rules - 1/10 Le Mans Prototype

*** Rules below are copied from http://www.usvintagetransam.com/rules/ ***
What do you guys think about this race class?

USLMP Rules

Min ride height 3mm

Max width 205mm

Min wheelbase 255mm

Max wheelbase 275mm

Min weight 1200g

Motor limit indoor tracks 21.5, outdoor tracks 17.5

Esc ROAR approved blinky only

Battery 2S regular or shorty

Single nut wheel attachment

Rubber tires

Max wheel width front TBA

Max wheel width rear TBA

Min wheel width front TBA

Min wheel width rear TBA

Max wheel diameter 50mm

Max tire diameter TBA

Min tire diameter TBA

Only LMP, Group C, GTP, GT1, Can Am, Sports Prototype bodies are allowed
  • If body comes with molded in kick up at rear, must be cut out to resemble separate wing as on full scale car.
  • If body come with separate wing, must be mounted in same location as full scale car.
  • No oval or TC style wings allowed.
  • Scale liveries encouraged and recommended, we will make fun of you if you paint a tribal flamejob-no exceptions.

Qualifying format to be USSRCRA style, 3 min single qualifier using 5 fastest avg laps to seed your position for mains.

3 x 10 min mains for points to determine overall winner
  • Option to use standard IFMAR qualifying and single main event (club choice)

Commercially available LMP chassis (SpeedPassion LM-1) or converted 1/10 pan chassis (WGT, Pro-10) pan chassis fitting the dimensions are allowed.

Body recommendations-
  • Speed Passion LMA
  • Royce RM-1
  • Toyota GT-1 TS020
  • Rivall LMP1
  • Porsche 962
  • Nissan R91CP
  • Toyota Group C 88CV
  • Mercedes Group C CLR
  • Porsche 962C
  • Toyota GT1 TS020
  • Porsche 911 GT1
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Old 01-20-2014, 10:40 AM   #2
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Love the idea. Hope it goes well.

Last edited by Evoracer; 01-20-2014 at 10:59 AM.
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Old 01-21-2014, 11:59 AM   #3
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How many people (on RCtech) have a car that fits the description for USLMP?
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Old 01-21-2014, 12:08 PM   #4
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Full thread here:

LeMans LMP1: 200mm Pan Class Discussion

That thread was an extension of this previous thread:

RCHSR: Radio Controlled Historic Sportscar Racing

I'm very glad to see a return to racing cars that look like real racing cars!
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Old 01-21-2014, 12:49 PM   #5
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Does there really need to be another class? Seems like most races have loads of classes these days with 4 people in each one...and why does every new class get slower?
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Old 01-21-2014, 01:01 PM   #6
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This should be faster than VTA or USGT. I would expect anyway. If anyone is running something like this, how does it compare to laptimes for other classes?
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Old 01-21-2014, 01:59 PM   #7
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Sorry, already discussed elsewhere

Last edited by rctrackman; 01-21-2014 at 03:01 PM.
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Old 01-21-2014, 02:13 PM   #8
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I was planning on either converting an F109 or a GenX 10. Am I missing something. You sound like thats not possible.
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Old 01-21-2014, 02:23 PM   #9
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Wrong place. Sorry

Last edited by rctrackman; 01-21-2014 at 03:00 PM.
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Old 01-21-2014, 02:35 PM   #10
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Quote:
Originally Posted by snoopyrc View Post
I was planning on either converting an F109 or a GenX 10. Am I missing something. You sound like thats not possible.
It's quite easy to use a standard F1 rear axle on a WGT chassis. You'll need the axle (with hubs) and a pair of 6x10mm flanged bearings. Just drill or ream out the rear axle adjusters to 10mm to accept the bearings.

The F109 should be ready to go; just change the body.

All of this is already discussed in the other thread:

LeMans LMP1: 200mm Pan Class Discussion
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Old 01-21-2014, 02:53 PM   #11
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Never mind. Sorry
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Old 01-22-2014, 07:01 AM   #12
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There needs to be a bit more clarity of the rules as far as rubber tires are concerned. What type of rubber tires are to be used? The only reason why I ask is that there was a F103GT kit in which you could run touring sedan rubber tires. This could open up another can of worms as far as the type of tires then start the brand "spec-ing" of tires talk to this class.
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Old 01-22-2014, 07:34 AM   #13
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Quote:
Originally Posted by snoopyrc View Post
This should be faster than VTA or USGT. I would expect anyway. If anyone is running something like this, how does it compare to laptimes for other classes?
Lap times are a few tenths quicker than USGT and about 1 sec faster than USVTA, closing speeds are considerably faster for the 21.5 LM1 versus USGT.
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Old 01-22-2014, 08:04 AM   #14
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Quote:
Originally Posted by JLock View Post
There needs to be a bit more clarity of the rules as far as rubber tires are concerned. What type of rubber tires are to be used? The only reason why I ask is that there was a F103GT kit in which you could run touring sedan rubber tires. This could open up another can of worms as far as the type of tires then start the brand "spec-ing" of tires talk to this class.
I have measured several different brands of TC rims, and none meet the 50mm maximum diameter rule.
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Old 01-22-2014, 08:12 AM   #15
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Quote:
Originally Posted by wwddww34 View Post
  • Scale liveries encouraged and recommended, we will make fun of you if you paint a tribal flamejob-no exceptions.
thank you!

Quote:
Originally Posted by wwddww34 View Post
Mercedes Group C CLR
This is a LMGTP car from 1999, better known as the 'flying' CLR prototype.

I really want one!

Quote:
Originally Posted by wwddww34 View Post
How many people (on RCtech) have a car that fits the description for USLMP?
I have the 1996 Tamiya 911 GT1 and want about 5 cars off that list.
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