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Unlimited MT class

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Old 04-21-2004, 11:50 AM
  #1  
rcblaze
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Default Unlimited MT class

I'd like to start a discussion on the unlimited MT class. First question I have is this class going to become a roar class soon. And if so what rules should be in place? Should only 8th scale trucks be allowed? Should there be 2 classes.(Small block & Big block). This came up as a question in my mind due to all the new MT's coming. With all the REVO vs LST vs MGT vs what ever going on I was wondering if it is really fair when you race or compare a REVO small block to a LST or MGT big block? Or should this class remain what it is, race what you bring? Bring on the comment's.
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Old 04-21-2004, 11:53 AM
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Default RE: Unlimited MT class

definitly should include the truggy type MT's.

In our club we have a UNlimited MT class and a stock MT class. Unlimited is all truggies and MT's on a buggy platform, Dominator, Gs Sut, etc and a savage/ tmaxx with an upgraded motor

The stock mt class is basically for savage tmaxx with the stock powerplants.

This seperation was the easiest for our club racing.
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Old 04-21-2004, 12:13 PM
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fhm101
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Default RE: Unlimited MT class

Here's a cut and paste of the proposed MT class rules that will be submitted to ROAR for provisional approval as soon as they are formatted to match the current ROAR rule standard.


STANDARD MONSTER TRUCK (referred to as β€œMONSTER TRUCK”), FUEL, OFF-ROAD
Scale – unknown 1/10-1/8
Description:
Other than frame supports, skid plates, suspension (including wheels),
drive shafts, mounting hardware, steering linkage and steering servos,
no item on the truck may exist below the output shafts of the transmission.
Minimum track width - - - - - - - - - - - - - - Continuous 10 feet
Wheel base - - - - - - - - - - - - - - - - - - - Minimum 11 inches?
Minimum weight - - - - - - - - - - - - - - - - - 7 pounds
Wheel diameter - - - - - - - - - - - - - - - - - Minimum - 3.2”
Wheel width – - - - - - - - - - - - - - - - - - Minimum - 2.0”
Wheel width – - - - - - - - - - - - - - - - - - Maximum - 3.0”
Tire diameter - - - - - - - - - - - - - - - - - Minimum – 5.0” **
Minimum tire width - - - - - - - - - - - - - - - Minimum - 2.0”
Engine - - - - - - - - - - - - - - - - - - - - - ***
Transmission - - - - - - - - - - - - - - - - - - 1, 2 or 3 speed are
OK(rule 6-18 is void here)
Race lengths - - - - - - - - - - - - - - - - - - Qualifiers – 5 to 7
minutes, Main events - 10 to 60 minutes
Bodies - - - - - - - - - - - - - - - - - - - - -Truck or SUV off-road
style body that resembles an actual off-road racing or Monster truck
Demonstration/Racing vehicle (no buggy or car bodies allowed – ref:3-16)
Bumpers - - - - - - - - - - - - - - - - - - - - Bumpers are optional
and must not extend further than 1” past the body on the front and rear.
Skid Plates - - - - - - - - - - - - - - - - - - Skid Plates must not
extend further than 1” past the body on the front and rear.
Tires - - - - - - - - - - - - - - - - - - - - - Rubber only
Rear Wing - - - - - - - - - - - - - - - - - - - Width must not exceed
body width and may not project more than 1” past rear wheel/body
whichever is furthest rear on the vehicle.
Fuel Tanks - - - - - - - - - - - - - - - - - - - single fuel tanks max
capacity: 125cc for .18ci and below, 250cc for .18 and over

Notes –
** Per the post by Kent Poulsen the T140 LP Komodo Dragon measured 5.0” in diameter so this
does not disallow this tire
***Most Power Plants used in MTs are currently not approved for ROAR
racing, nor are the exhaust systems. This should be remedied by the
1/06. Mfrs should submit product for approval. Currently any .12-18
small block and .15 to .26 big block motors are common. Small Block and
Big Block are common breakdowns of this class.
2 and 3 channel radios are permitted – ref:1-57
Bodies may need to be trimmed past trim line to accommodate exhaust
pipes only – ref:3-12
Two or four wheel drive allowed.


Outlaw MONSTER TRUCK (referred to as β€œOutlaw MONSTER TRUCK or Unlimited
MONSTER TRUCK”), FUEL, OFF-ROAD
Scale – unknown 1/10-1/8
Description:
Any Monster Truck that does not 100% meet the Standard MONSTER TRUCK
specifications while still meeting the below guidelines.
Minimum track width - - - - - - - - - - - - - - Continuous 10 feet
Wheel base - - - - - - - - - - - - - - - - - - - Minimum 11 inches?
Minimum weight - - - - - - - - - - - - - - - - - 6 pounds
Wheel diameter - - - - - - - - - - - - - - - - - Minimum - 3.2”
Wheel width – - - - - - - - - - - - - - - - - - Minimum - 2.0”
Wheel width - - - - - - - - - - - - - - - - - - Maximum - 3.0”
Tire diameter (mounted)- - - - - - - - - - - - - Minimum – 5.0” **
Minimum tire width (mounted) - - - - - - - - - - Minimum - 2.25”
Engine - - - - - - - - - - - - - - - - - - - - - ***
Transmission - - - - - - - - - - - - - - - - - - 1, 2 or 3 speed are
OK(rule 6-18 is void here)
Race lengths - - - - - - - - - - - - - - - - - - Qualifiers – 5 to 7
minutes, Main events - 10 to 60 minutes
Bodies - - - - - - - - - - - - - - - - - - - - -Truck or SUV off-road
style body that resembles an actual off-road racing or Monster truck
Demonstration/Racing vehicle (no buggy or car bodies allowed – ref:3-16)
Bumpers - - - - - - - - - - - - - - - - - - - - Bumpers are optional
and must not extend further than 1” past the body on the front and rear.
Skid Plates - - - - - - - - - - - - - - - - - - Skid Plates must not
extend further than 1” past the body on the front and rear.
Tires - - - - - - - - - - - - - - - - - - - - - Rubber only
Rear Wing - - - - - - - - - - - - - - - - - - - Width must not exceed
body width and may not project more than 1” past rear wheel/body
whichever is furthest rear on the vehicle.
Fuel Tanks - - - - - - - - - - - - - - - - - - - single fuel tanks max
capacity: 125cc for .18ci and below, 250cc for .18 and over

Notes –
** Per the post by Kent Poulsen the T140 LP Komodo Dragon measured 5.0” in diameter so this
does not disallow this tire
***Most Power Plants used in MTs are currently not approved for ROAR
racing, nor are the exhaust systems. This should be remedied by the
1/06. Mfrs should submit product for approval. Currently any .12-18
small block and .15 to .26 big block motors are common.
2 and 3 channel radios are permitted – ref:1-57
Bodies may need to be trimmed past trim line to accommodate exhaust
pipes only – ref:3-12
Two or four wheel drive allowed.


Unless the race is Fuel only, then Electrics may be accounted for and
race in either class


If you see something you don't like or think could be better, ROAR will run an open comment period after they have given them a once over.
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Old 04-21-2004, 01:56 PM
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rcblaze
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Default RE: Unlimited MT class

Thanks FHM great info. So this should be in place soon I take it? So it's stock mt vs modified mt in your club cemeb4dk? So a modified Tmaxx with (for arguments sake) a .18 Siro are side by side with lets say a dominator with a picco .26? If you don't mind what are the result's in most case's? I'm trying to get and idea of how big blocks do vs small blocks. Also if the smaller lighter trucks have a bigger turn out for races then the Unlimited. Thanks for the info
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Old 04-21-2004, 02:11 PM
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Default RE: Unlimited MT class

In my opinion, I feel that traditional style MT such as the Savage, T maxx, MGT, Terra crusher, Revo and trucks like that should run in the same class, or be divided by size of motor,IE small block and big block. I believe that truggies and buggy based monsters should run in their own class. Power to weight ratio with truggies and traditional style trucks don't compare. Buggies are built to race from the beginning, MT's are built to be MT's, if you want to race traditional MT's, you usually buy hop-ups to make them race worthy. Truggies are at the advantage over traditional style trucks. But I do know that racing is mainly the driver, but still truggies are at the advantage. Just my 2 cents.
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Old 04-21-2004, 02:37 PM
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Default RE: Unlimited MT class

ORIGINAL: bcash

Thanks FHM great info. So this should be in place soon I take it?
The above should be in the hands of the proper ROAR officials any day now if not already, but as i understand the process full ROAR approval would take at least a year after provisional status is granted. I have no idea how long it will take ROAR to grant provisional status, but i've heard it would be for the beginning of the 05 season. In short, if the scuttlebutt is even close it will be next year before we would be racing under ROAR provisional rules and 06 before MT becomes an official ROAR approved class.
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Old 04-21-2004, 09:07 PM
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Default RE: Unlimited MT class

bcash,

No the stock MT's savage tmaxx etc (none buggy chassis types) run in their own class. These are with the stock motor(ie traxxas 2.5, HPI nitro 25).


Our unlimited class is all buggy type MT's (Truggy's, gs sut, dom's, etc) also Upgraded powerplant savage and tmaxx's. (ie a savage with a picco 26 or a tmaxx converted to a 21)

The truggies do outperform the others with their better turning radius and way better jumping ability. But it still comes down to driver.
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Old 04-21-2004, 09:18 PM
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Default RE: Unlimited MT class

at my track they run unlimited but i run with a .27 and all the others are totally stock. its going to be nice if that goes through, then i can race in ROAR tracks.
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Old 05-31-2004, 07:39 AM
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Default RE: Unlimited MT class

I have been trying to race a modified T-Maxx, with limited success. I am looking at the Monster GT or maybe the Storm SUT. At my track, MT class is basically "race what you brung", so I am just looking for something that will get around the track handily without breaking.

Have any of you guys seen Monster GT's racing against the SUT? If so, what were the results? It almost seems like a no-brainer that the SUT would beat the MGT, but Richard Saxton won the Monster Truck A-Main in the 5th Annual Dirt Nitro Challenge using a MGT, and he was racing against three SUT's and two Kyosho conversions! Go figure.
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Old 05-31-2004, 12:06 PM
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Default RE: Unlimited MT class

If you want the only out of the box race ready unlimited truck, it would be the bergonzoni MT. It's a basic buggy kit with the addition of the proper gearing, MT tires and wheels, body mounts, and a pre painted Atomik truck body. Not only is it a killer race truck, it's also the only rc car i know of with a lifetime warranty on the diffs. I've been fooling with these trucks for a couple of years now and they are still the best flat chassis truck I've seen on the track. If you are interested in one I've got a couple of good used rollers, a built kit that's never been run, and a complete in the box kit.
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Old 05-31-2004, 04:25 PM
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Default RE: Unlimited MT class

I've heard of the Bergonzoni MT, but I can't seem to find any information on it. Do you have any links to the mfr. website or any other useful pages?
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Old 06-01-2004, 01:24 AM
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Default RE: Unlimited MT class

Here's a link to the US distributors web site. GB Direct USA. Eric (Owner of GB Direct USA) is currently involved in developing an unlimited truck for Crono, but he can give you all the info you need on the Berg MT as he is the guy that developed it and he's also the importer.
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Old 06-01-2004, 09:03 AM
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Default RE: Unlimited MT class

I firmly belive that the Mammoth Is a Very Strong contender in the unlimited class. It Jumps like a buggy and has an awsome topend, In 100Ft i pass pretty much any truck in the feild and it out handles any low slung t-maxx or savage. And with the dominator wheels it is so wide that it is damn hard to pass due to how wide the truck is with them. so just brace the shock toers and let er rip! But It really depends on the driver!
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Old 06-01-2004, 12:06 PM
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Default RE: Unlimited MT class

Not much info on that site about the truck. Any idea how much they are and a site with indepth info? What makes the Berg the best?
ORIGINAL: fhm101

Here's a link to the US distributors web site. GB Direct USA. Eric (Owner of GB Direct USA) is currently involved in developing an unlimited truck for Crono, but he can give you all the info you need on the Berg MT as he is the guy that developed it and he's also the importer.
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Old 06-01-2004, 12:26 PM
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Default RE: Unlimited MT class

The reason I put up the web page was for Eric's contact info, he is the resident Berg MT expert (and owner of GB Direct USA) and will be happy to answer any questions you may have. I'm not sure what they are selling for these days as the kit has undergone several upgrades since i got mine. As for why they are the best, they are the only MT that has the proper gearing for the class and the diffs are strong enough to stand up to ANY engine you can put on them. They handle real well and are tough enough to hold up to the rigors of racing while being one of the lightest truggies going.
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Old 06-01-2004, 01:17 PM
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Default RE: Unlimited MT class

What's the gearing being used? And do you run a center diff if so what diff lubes are you using for all 3 diffs?
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Old 06-01-2004, 02:05 PM
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Default RE: Unlimited MT class

ORIGINAL: Chevy-SS
Have any of you guys seen Monster GT's racing against the SUT? If so, what were the results? It almost seems like a no-brainer that the SUT would beat the MGT, but Richard Saxton won the Monster Truck A-Main in the 5th Annual Dirt Nitro Challenge using a MGT, and he was racing against three SUT's and two Kyosho conversions! Go figure.
There are a couple guy at our track that race them, one guy is a pretty good driver, but my Dominator and my H7 truggy out drive him unless I crash or break. That said he does very well with the MGT.
And BTW the local guy I race against that run MGTs say the tranny gears suck.


If you look at those results, Only 10 trucks competed and half the field broke in that race.
Not to demean Saxton’s effort, a win is a win, but it wasn't the strongest field
Take a look at the proline results for a better sense of what a SUT can do
Marty has won all the big events he’s run with the SUT except for that one.

The Monster truck class just isn’t as popular out here for some reason
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