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Old 04-03-2002, 03:51 PM   #1
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Just read on speedtechrc.com that the JP MT-12 is now legal because of recent rule changes. What are the new rules? Is a modified crankshaft legal?

The ROAR website doesn't have anything on this.
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Old 04-03-2002, 09:21 PM   #2
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The new rule book is at the printers now. Once its printed we will know for sure. Until then rumors are abound.
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Old 04-03-2002, 09:42 PM   #3
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The anticipation is killing me!!!!
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Old 04-16-2002, 08:31 PM   #4
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I've heard that ROAR has started sending out the new rule books. Anybody get there's yet? Got an update for us?
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Old 04-17-2002, 10:12 AM   #5
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What version will the "new" book be? I recently re-newed my membeship and got the 2002 rule book. Is there going to be another one?
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Old 04-17-2002, 11:45 AM   #6
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My understanding is that the 2002 book is the most current. Could you enlighten us on the new engine rules. Ie turbo plugs, mods, etc?
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Old 04-17-2002, 02:48 PM   #7
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I was mistaken..I have the 2001 book. It says copyrighted in 2001, so I guess it's the 2001 book...Sorry
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Old 04-17-2002, 07:43 PM   #8
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As I understood it when I was in Austin, TX a few weeks ago, you can work on the crank slightly. Mike Queller lives in Austin and he explained some of the changes for the new year. More or less, the race director still has final say but, it sounds like you can polish, surface, smooth, radius, etc. your crank as long as you don't increase the bore or length of the intake port in the crank. I am not 100% on this since I moved, started a new job, and had my mother undergo surgery since then so, check with Mr. Queller to be sure. Hope this helps you guys.
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Old 04-24-2002, 12:44 PM   #9
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word for word 02 rule book
.12 fuel touring car 4wd
max length 18.1
max width 7.87
ht minimum 4.5 inches
wheel base min 9.8 max 10.6
min wt 60ounces with transponder
wheel dia min 1.85 max 2.
wheel width min .94(24mm) max 1.19 (30mm)
tire dia min 2.17 max 2.64
tire width min .94(24mm) max 1.19(30mm)
wheel cutout .25 max over tire
engine .12
trans 1 or 2 speed
rear suspension independent
race length quals 5 minutes main 5 to 60 minutes
tires foam or rubber no capped tires
notes
one wing allowed, fitted same place as the wing on the car
wing must be fastened to the rear deck
no part of the wing may protrude above the roof line
rear of body to include the rear bumper and may not be cut out for cooling
one cooling hole not to exceed 2 inches in any direction may be cut in the windshield
four wheel drive only

bodies must resemble 4 door cars that have run in a touring car series
engine specs .12
max displacement .129/2.11cc
max carb bore above jet 5.5mm ( this is new, clarifying above jet)
max exaust port ht 4.0 ( almost all current .12s are not legal)
max internal ports w/exh 4
max muff outleet interior diameter 5.0
min outlet length beyond pipe 15mm
turbo plugs allowed NO
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Old 04-24-2002, 08:12 PM   #10
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What no side or rear window cooling??
and what does 5.5 above the jet do its below the jet that counts. Cripes.
and 4 mm makes every single engine being produced illegal.
And TC3's have 14 mm stingers beyond the pipe and 1 mm inside so those are illegal too
A tire diameter minimum?? how stupid

No point in running this class anymore. Its just to much of a hassle.
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Old 04-24-2002, 08:29 PM   #11
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hey my rtu was 5.5 above the jet last year( not that i disagree) but they were trying to fail those that were not.... mine was good though thanks .
the side windows and rear can be cut out... it is listed in with all the gas garbage too hard to pull out of context and more than i wanted to write... but it is okay to cut your side and all of your rear window out.

tire diameter rule has always been there and i am not even sure it changed... width was modified, use to have a larger width allowed...... on tire not rim

robert has taken the blame on the exust port gt.... on sgrid... he is going to recheck how he measueres may be more there than in the actuall ht???... hope it is fixed,,, otherwise we all are going to be pushing our cars...... teathered nats

never saw a stinger length checked????? but i would guess.. not sure what it use to be stinger length is also unchanged...old rule...fyi
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Old 04-25-2002, 04:53 AM   #12
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Interesting rule changes. Looks like ROAR shot themselves in the foot with this one! Glad my LHS that sponsers our races are not this anal!!!
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Old 04-25-2002, 07:44 PM   #13
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ammdrew the one that failed was an RTO 6.2 mm carb and the guy knew it before he went to tech. I am super carefull around the inlet now because of the issues last year.
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Old 04-26-2002, 07:18 AM   #14
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they actually failed me at first and i stood there having a fit, there dummy guage hit the spray bar.... but it was made so that if it roattated it was good??? anyways after a long discussion they passed, and i know the guys you are referring too and he sayed he did know.........

by the way thanks for making such a great product ... i see alot of people who are afraid to let people see it is a rtu( grind the head or polish it) becuse they do not want any greif in tech... i just put er out there and say it is legal.... go ahead and check..... and that was the first time i ever got challenged... and they were using there tools incorrectly......

hey roar has officially posted the rules on there website...
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Old 05-09-2002, 08:16 AM   #15
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Guess now the question is whether or not Yokomo will change the 32mm tires to 30mm. Ellegi, mugen, etc don't fit
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