hey scott got a quick 5) Any stock front and rear differentials allowed, does this meean no narrowed 14 bolts or hybred toy-60' caust the rule above it state that we can't run full size running gear under a small truck, "or did i miss read it" I love running smaller trucks but ave problems running alot of hp to the smaller running gear, just wanting to know if I can run some hybrid toy-60's, and how much longer do we have before all thoughts are off and rules are set? thanks

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Fat Rich...."Rebel Hill Racing"........"If you can't Dog it Don't Bog it" MRA # 151, PIT Classes 4,5,6. Top ground 3

Full-size running gear is permitted under minis, as would be narrowed housings. Stuff that would fall outside the realm would be things like Unimog axles or homemade final drives.

We'll leave these up 1 more week for comment, the reps will then have about a week to hash out the proposed changes, and then we're set

Scott

kool so a hy-breyd 60 is ok, I guess i MIss read the rules eirlyer, thanks for clearing that up for me ,,,, I don't know is this a stupid question, or I am just not familier with it what the Hell Is a UNIMOG Axel??

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Fat Rich...."Rebel Hill Racing"........"If you can't Dog it Don't Bog it" MRA # 151, PIT Classes 4,5,6. Top ground 3

A Unimog is a German military vehicle with portal axles. The differential & axle tubes sit several inches higher than normal, and then there is a reduction planetary at the hub. The result is that a guy with 40's would have as much ground clearance as a typical axle with something like 54's.

ya that would't be fair lol, ty for you help

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Fat Rich...."Rebel Hill Racing"........"If you can't Dog it Don't Bog it" MRA # 151, PIT Classes 4,5,6. Top ground 3

Dug around for a picture of one. Not the best, but you can sort of see what I'm talking about:

yup I see thanks for the pic. I was just making sure befor I go cuttin the 60' down tonight that it would fit in I want to thank you for your time. Now it's back to work buildin the ne truck, my plans are to fit in to class 3 and be able to step up to class 4.

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Fat Rich...."Rebel Hill Racing"........"If you can't Dog it Don't Bog it" MRA # 151, PIT Classes 4,5,6. Top ground 3

38.5 12inch wide wheel 20lbs air 36 3\4 inch tall bogger

39.5 14inch wide wheel 20lbs air 40 inches tall bogger

37 12 inch wide wheel 20lbs air 36 1\4 inches tall bogger


i will run my 37s against the 38.5 all day long,but when you let the 39.5 its a totally differnt class,and if you cant see that then i guess i am wasting my time again just like super stock.
i keep reading about how MRA needs more members, and all it would take is a few simple changes to get them,i talk to the majority of the drivers down this way ,alot of them read the forum and know whats going on so we will keep looking for now .
thank you JIMMY MATHES

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ONLY IN A FORD
JIMMY MATHES

The 39.5 also sucks up SO much horsepower, the height improvement is more than offset by the fact that you can spin the 38.5 (which is also DEEPER in tread) way faster. Around here, it's usually the guys on 39.5's who get stuck & the guys on 38.5's that make full passes.

BTW, the same holds true for many other sizes. I went from a 38X12.50 to a Q78 of the same tread style & my truck goes WAY further in deep mud even though I now have SMALLER tires.


BTW, I can use your arguement against you as well. If stepping up from a 37 to a 40 is such a HUGE difference, why is it okay to make 38.5's run against 44's at your local events? Wouldn't the difference be even GREATER there?


BTW, it's not that we can't "see" what you guys want. It's that we do see it & we see that so many OTHER guys want this to be a 40" class. Don't assume that the half-dozen guys posting here are the only ones who've commented


Scott

Great post Scott,
There are others who have an opition who don't post on here at all but still give input as to what they would like to see done with the classes.

Cautionlap---Glenn

the track i run at its 38.5 down & 39.5 up tri-state off road park, florida
with the engine rules you will not have to worry about 39.5 or 40s sucking up any horse power and i dont know what 38.5 you are measuring ,but a 39.5 bogger has a lot more tread depth.and width.

mississippi has 37 down & 38.5 up,some south alabama run these tire sizes

BTW,i never mentioned running 38.5s against the 44s or 46s,i just made a suggestion ,for the 37s.
thank you JIMMY MATHES

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ONLY IN A FORD
JIMMY MATHES

3) Conventional OEM style aluminum heads allowed (no raised runner heads,,, I am getting from this we can not run are after market heads or can we I have world product alum heads I wanted to run can I???

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Fat Rich...."Rebel Hill Racing"........"If you can't Dog it Don't Bog it" MRA # 151, PIT Classes 4,5,6. Top ground 3

I must have bought a bad set of 39.5 boggers.... thay only measure 38-38.5 on 14's and have ALOT more tread depth than my 38.5's

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I beleive........... that guns don't kill people..... husbands that come home early do!!

38.5X11 26/32's
39.5X18.5 26/32's
38.5X15 29/32's.

Okay, so the 38.5X11's & 39.5's are the same tread depth. And yes, the 39.5's are wider, but that doesn't HELP this kind of truck in deep stuff IMO.

BTW, the 37's are only 22/32's & I'd run my 35X10.50's against those ANY day, but not against 38.5's.


Bottom line is this - the guys on 37's don't seem to have an issue running against 38.5's, am I correct?


That said, I'm going to pose this question to the people out there that HAVE a 40" class in their area for stock wheelbase, 1-carb, no nitrous, mostly complete trucks:

What tires are on the trucks that win most of the races?



Scott

Just for reference, JMF350's tires are cuts. This is an uncut class