USRA Has The 2016 B-Mod Rules Posted

They don't have a problem in the area where USRA rules are. They learned that they can get durability with those parts if you don't try to get too much lift from the cam within those rules. And they are REALLY close on speed.
 
From what I saw this year there's no problem with the rules ump had last year either. All tracks had multiple winners both with open and crate option and the only driver that was even considerably dominant was dominant in another class and won on set-up and driving ability. And he didn't end up winning the track championship..maybe due to mechanical issues. So there's another facet that shows the rules are fine. If it's not broke don't fix it, UMP.
 
They don't have a problem in the area where USRA rules are. They learned that they can get durability with those parts if you don't try to get too much lift from the cam within those rules. And they are REALLY close on speed.

USRA also allows roller tip rockers.. UMP wants stock stamped rockers, no roller tip.
 
Stamped, roller tip or not you're not going to see any significant performance difference between the stock style non roller pivot rockers and roller rockers in a back to back test as long as the ratios are similar. The difference is the fact that you have to give the non roller pivot parts a lot more oil to keep them cool when running at continuous high speed. Having more oil flying around inside of the engine is not good for performance or longevity. Not allowing a girdle is also a great impediment.
 
OK== I OWN 2 1/2 Bmods--the 27 --the 54 (which I am sure som ya all were not aware of)and whats left of the 47 car--I could run the 25 car as a B mod but only at TCS--the 27 is legal as a b-mod but I run it as a A mod--all of my motors have roller rockers----HERE IS WHAT I WOULD LIKE ALL YOU B MOD guys to do--if you want to continue to run roller rockers--and a stud girdle then come on this site and tell every one just that---no names no car nos just please be a driver or owner---I SAY KEEP THEM LENNY GARSON JMO
 
Dave, I beg to differ with your observation of no difference between stock rockers and roller rockers.
I've done this test by using each type of rocker on the same engine.
If you turn them both over with a torque wrench there is a big difference in the torque needed to turn the stock rockers over.
I wish I had saved all my notes, but it wasn't an insignificant amount of extra torque for the stock rockers.
Not quite on the same subject, but try the same thing with roller lifters and you'll never run flat tappet again!!!
When we did the roller lifter test it wasn't quite the same because I didn't switch cams, just used similar engines for the tests.

THANX RICH
 
Make these shocks legal as well.. should be no reason for them not be allowed.. yes they are not the same diameter from top to bottom on the outside... But the body on the inside sure is the same.. jmo.
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i am not going to argue about rules, i want things to be as CHEAP as possible. Believe it or not that is why myself and some people choose to run crate engines but that is another discussion. What I want to know is when are they going to tell us the dang rules? I hear rumors about having to buy shock stickers and wheel stickers and no grooved or siped tires, etc etc. i would have no tires to run.

the problem with shocks like those are that you can have the insides changed and modified and that opens a big can of worms in a lot of peoples minds
 
The rules have always been out, ump website has 2016 rules posted for weeks now, they are not changing much of anything, just enforcing what they said would happen year by year! Same thing as posted before tracks started allowing their version, it's simple get over it or get out!
 
Ok, if that's true..next question..does anyone know if tri city is changing their rules to ban roller rockers? I like racing on Friday nights.
 
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Dave, I beg to differ with your observation of no difference between stock rockers and roller rockers.
I've done this test by using each type of rocker on the same engine.
If you turn them both over with a torque wrench there is a big difference in the torque needed to turn the stock rockers over.
I wish I had saved all my notes, but it wasn't an insignificant amount of extra torque for the stock rockers.
Not quite on the same subject, but try the same thing with roller lifters and you'll never run flat tappet again!!!
When we did the roller lifter test it wasn't quite the same because I didn't switch cams, just used similar engines for the tests.

THANX RICH

I don't think that a static test using a torque wrench is quite the same as using the rockers in a running engine because when the rockers are lubricated and moving(creating a hydrodynamic wedge to some extent at the pivot) the friction levels must be much closer. The reason I say this is because I've done a dyno test back to back between a very well selected set of stock rockers vs a set of 1.5 ratio roller rockers. Same cam, same day etc and both made the same power with less than 1% power difference. At least that's what I observed in my testing.

You would have to switch cams to test the roller lifter otherwise the movement of the lifter is very different.
 
Ok, if that's true..next question..does anyone know if tri city is changing their rules to ban roller rockers? I like racing on Friday nights.
I'm assuming they're staying with their current rules. They had one of, if not these best car counts all year.
 
Another year and another off season and here is all the crying again about rules for the b-mods once again!! Unbelievable
 
Another year and another off season and here is all the crying again about rules for the b-mods once again!! Unbelievable
Dude I don't know who you are and frankly don't care.. But I own and race a car and have since 2009 and have put blood, sweat and tears into it as well as every penny I can come with and last time I checked this is a forum for RACERS to discuss racing topics, this one happens to be about the rules so who the hell are you to get on here and insult me or any other RACER about their input on the situation?? Funny thing is you're on here crying about actual racers having a discussion on a site and topic that was designated to do so! So if you don't like it, check the f out!..and if you want to say anything to me please do so in person next year in the pits before or after the races.
Chuck Goodman
#327
 
Your right it is a racing forum and I'm just like you I'm entitled to post whatever I choose!! I'm also entitled to my opinion and I believe I as much as voiced my opinion!! Every week someone in the b-mod class is on here crying about the rules!! It gets old!! As BWRC posted earlier....the rules have been out for awhile now with only minor changes in them!! If your to stupid to understand the rules then maybe you need to either get out of racing or figure out the rules!! By the way...I responded to your childish pm you sent!! Idiots!
 




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