13 replies to this topic

[Dave_12]

I had a discussion with someone at my local track and they told me there is a difference between a LMP and a GT1 body. 
Is there any difference or are they the same?

[Dave_12]

what kind of body is this ?

Attached Images

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[bbr]

lmp

[team burrito]

an LMP is a le mans prototype & a GT1 is a grand touring production car. as far as the performance or downforce, it depends on the manufacturer. JK bodies are about equal in downforce, but the red fox nissan is the goto LMP body for racing. the only other high downforce bodies available are for the production 24 class, as proscribed by ISRA.

[stoo23]

Hey Dave, I have had similar discussions over time, with some members and fellow racers Swearing 'Blind' that there are differences in design and downforce in the JK bodies that are ostensibly ALL LMP bodies.

 

I have tried to get Kim and others like Mike D etc to no longer keep 'clouding the waters' with the GT-1 term, as we are not actually racing bodies that can properly be described as GT-1 bodies, they are (in effect), all LMP bodies.

 

I tried to clear things up with this post: Gt-1 & LMP on Our ASCRA Forum 

 

As suggested in my post, I think perhaps James may have initially created the 'belief' way back at HSC ... but I may be wrong.

 

Personally, I'd be quite happy to have and Run in a Proper GT-1 Flexi series but they would not be LMP style bodies and would (in general), be Low Downforce type bodies.

In 'Real Life', it was Porsche, Toyota and perhaps arguably Maserati eventually, that seriously Pushed the 'envelope' and 'Spirit of the Rules', as far as What defined a GT-1, with their cars being VERY Different to the other True complying GT-1 cars 

[Dave Crevie]

Don't know what you guys are doing down under. Up here, the most obvious difference is in the rear wing. LMP bodies have a sorta/kinda scale rear wing. GT-1 bodies have grossly oversize side dams. 

 

 

This would be a legal LMP coupe body in most racing groups. Note the step in the rear wing, and the short side air dams. (circled in red)

 

 

 

This would be a legal open cockpit LMP body. Same rear wing as the coupe. 

 

 

 

This would be legal in some racing groups. Note that there is no step in the rear wing, and it has a more "scouped out" profile.

 

 

 

This would be a legal GT-1 class body, with long side air dams and scouped out profile. But there are other differences between LMP and GT-1 as well.  

 

[stoo23]

Hi Dave, actually, wouldn't that Last body be More correctly described as a GTP Body ?? ... NOT a GT-1 ??

 

Well, that's what WE call / classify a body like that as.

In the past, we used to run those on more EuroSport style steel chassis, with Grp12 motors, our Local class being known as GTP12's

 

True 'Real World' GT-1 cars were basically modified Real 'Production' based cars and were not Anything even remotely like an LMP car,.. lol ... nor did they incorporate any serious aerodynamics per se

[bbr]

the distinction is difficult to discern sometimes,,, as body makers try to get the most aero df.

that's y racing orgs specify one particular body that's legal to run

[Ramcatlarry]

LMP is obviously a "Lemans Prototype".  Over the years the Great RACE of Le Mans has had MANY terms to ID their FAST CLASS in the race. The same as the other World rules makers have for their own races.  GT is a closed cockpit car - (GT-1 through 4) considering GT-3  and GT-4 are ones that you can buy off of the showroom floor.   The 1960s Ford GT40 could be considered a GT-1, but it was now labeled that in the day.  The terms also should give a timeframe and allow 'Daytona Prototype' cars in races with others as well.  Commercial cars makers did not make many, but the 1/32 class does not usually let them play, but could.

[stoo23]

Yeah, agreed

I think the Slot Car confusion began with the release of the Porsche GT-1 and/or Toyota GT-1 bodies,.. both names actually being the nomenclature chosen by the individual manufacturers for their rather Thinly disguised GT-1 racers,... that were, in effect Unlike anything else currently racing with them in the GT class.

 

In slotiing both bodies are classed as and can be used in LMP and realistically, it is virtually What they were in real life as well,.. lol ... but due to the GT-1 name kind of disturbed the simplicity of all the similar bodies being simply known/understood as LMP's

[Dave_12]

Correct Stoo.  That last body picture is a GTP body. 

[Bill Seitz]

All this classification of bodies really becomes a point of time thing. In 1:1 racing, there was GTP and Group C in the 80's and 90's, then the rules moved away from "prototype" classes to GT-1 which was a little more production like, but still really a prototype - ok, so they were 'production' supercars (one of my favorites from the period was the Panoz which was a GT-1 car). Then the 1:1 rules changed some more with LMP and here in the US, "Daytona Prototypes". Confusing matters further perhaps, amateur racing (SCCA and NASA) have a class of production silhouette cars on tube chassis that's GT-1. Slot car bodies tend to follow the 1:1 counterparts, so depending on the 1:1 era, we have slot body style eras. Lately, the slot body makers have been adding accentuated aero controls that work better on slot car bodies, and the rule makers get involved and class the different degrees of aero enhancement allowed into specific categories named after present or former 1:1 classes. This leads to current classes "LMP" and "GTP", although I don't believe there are currently any 1:1 "Grand Touring Prototypes".

[Dave Crevie]

Hi Dave, actually, wouldn't that Last body be More correctly described as a GTP Body ?? ... NOT a GT-1 ??

 

Well, that's what WE call / classify a body like that as.

In the past, we used to run those on more EuroSport style steel chassis, with Grp12 motors, our Local class being known as GTP12's

 

 

You are, of course correct. I had forgotten about the USRA class GTP which was those bodies on a flexi type chassis, with a Contender or Competitor arm in a 16D can. At DJ's Hot Slots, Dave Fiedler would let the guys use the high downforce bodies on GT-1 and the newly formed GT-12 class when they were raced on the king. On the LTD, you still had to use the bodies with the stepped wing. I guess Dave got tired of all the carnage with the low downforce bodies. I don't remember him ever running GTP on the flat track. 

[Dave_12]

Thankyou everyone next time i have a discussion at my local track i am confident i am right about what a LMP body is .