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Thread: 1.5 tailpipe rule and vacuum rule?? opinions?

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  1. #1
    Join Date
    Feb 2010
    Posts
    34

    1.5 tailpipe rule and vacuum rule?? opinions?

    been reading about some of the new topics for possible rule changes, waiting to see what they will be like everyone else,mainly because i wasnt able to complete my car in time to race last year and now am at the point of installing exhaust on my car .
    i've read where increasing the vacuum rule to 18.5 or so was said and that seems fair , especially a steady reading, not fluctuating.
    the 1.5" tailpipe rule i must say is quite ridiculuos.first off no stock car every came with such a thing especially since these discussions were more focusing on the big cars. references are often made to howie and tim of how their cars are legal and thats great and thats how it should be . having more than the vacuum required . the tailpipe rule is spoken of to slow down or restrict the guys with big motors as i have read. so i'm reading how 2 of our good examples are legal and others are not , so how is the tailpipe rule practical.
    lets agree that these are still race cars or atleast cars we race and we all need to comply by the rules . but seriously how is an 1.5 tailpipe even race worthy. guys build v-8s for a reason , not to choke them down.
    there are always guys who bend and break rules but there are guys who can comply and run fast as well like tim and howie so why would you want to institute a rule that is both ridiculous and again not stock either?
    opinions? come on guys help us out here, heck it looks big diamond even dropped that from their roadrunners rule now and the wall factory stocks are 2.25 ehaust , which was stock. thanks

  2. #2
    Join Date
    Oct 2002
    Posts
    2,341

    Wink Pipe-Dreams.................

    The new "tailpipe rule" probably was instituted because of the experienced enduro peeps who know how to get around the vacuum rule.................
    These cars consistently pull 17 to 20 inches/Hg vacuum and idle smoothly because the engine was built to do so......................
    These engines are not very expensive to build and they make good power........................
    Any rule change costs the racer money, so naturally I don't like it......................
    Wall Stadium F/S rules are a prime example of how rules aimed at equalizing the field have failed!..........................
    They mandate things that cost more than using the stock parts/set-up...........................
    But they do prove one of "Uncle Petey's Enduro Commandments": No matter what rules are instituted to equalize the field, the same group of drivers will STILL finish up front..............................
    UNCLE PETEY...........................

  3. #3
    Join Date
    Feb 2010
    Posts
    34

    tailpipe rule

    no doubt people can get around the vacuum rule to a degree but not to the point of a major gain,thats where strict vacuum enforcement or a higher vacuum rule does make sense.,its not rocket science . i agree also how rules fail and strongly agree with how changes always cost us money. just not agreeing and seeing how this rule is practical.
    we build v-8 cars to go faster and not to be choked down slower. the rules we have now are great and simple and i just dont see where they are failing us . every race i 've been to with neets , i've yet to see the fastest cars win anyhow . if guys are wining and placing well and their cars arent legal they are dq'd so why the need for a change to unlogical rule?

  4. #4
    Join Date
    Oct 2002
    Posts
    2,341

    Wink Whine Time...................

    If you look at My-Lap times, many of the fastest cars are winning the races.........................
    Do a little research and you'll see how you can get major engine power gains and still maintain high vacuum at idle................
    I agree, the rule stinks, but somebody, somewhere had to start whining about enduro cars turning into S/S's and hence your new rule....................
    Don't know, maybe its easier for NEETS to tech the cars..............................
    Like Clint Eastwood said: "Your gonna have to adapt and improvise"............................
    UNCLE PETEY........................

  5. #5
    Join Date
    Dec 2006
    Posts
    164

    Question tail pipe!!

    Well after doing the math a stock 2 1/2 single exhaust will flow 8.95 square , when you double that you get 17.90 square right !! if you cut it down to 1 1/2 inches at the last one foot you get 12.80 so i still would say since most cars came stock with a y pipe and single exhaust for the most part , so with that the motors that are more stock will benifit with the 12.80 ?? Only the big motors will get cut down !! I know that any change is an expense to you guys and the cheapest way to do this is to put the 1 1/2 tips on the exhaust ( $ 20 ) ?? rev limiters ( $95 ) and mandating a specific carb ( $300) and a gear rule ( $200 ) isn`t the way to go for know and raising the vacumm ( $??? ) rule will really cost money and alot if time !!( but a carb or raising the vacumm will be the next step) And i know no one wants that?? This division is going to remain an affordable division !! so lets keep it simple guys !
    MR. RICK
    You Need

  6. #6
    Join Date
    Mar 2011
    Posts
    160
    Yea, You tell'em rick! Hey Rookie, Let me be the first to say, Welcome to neets racing!! Secondly, you just worry about having that car do 100 to 150 laps, with some of the best and brightest drivers in PA and NJ. Take notes!! Do your homework!!

    Only 88 days left!

  7. #7
    Join Date
    Jul 2009
    Posts
    787
    I just finished making a bracket and bolting up my pee shooter. It looks kind of funny but I got it tight to the body so it doesn't get smashed flat like the old tip always did. We'll just have to wait and see who gets to race and who gets to watch!

    Poppop

  8. #8
    Join Date
    Oct 2002
    Posts
    2,341

    Wink Pipe Dreams.........................

    I agree Scott, hope this series at Wall doesn't go down the tubes because of a "failure to communicate".................
    UNCLE PETEY................

  9. #9
    Join Date
    Apr 2009
    Posts
    500
    Let the cars without pea shooters race.
    They get scored behind all of the cars who have pea shooters.

    So if Poppop were the only one there with a pea shooter and completes only 1 lap, he wins the race.

    JMO
    Sounds like a good idea.
    If it ain't broke, don't fix it!

  10. #10
    Join Date
    Jul 2006
    Posts
    82
    My opinion is that this rule will only slow down the whole field. The faster cars will be slower and the slower ones will just get slower. And something that was not discussed is that you restrict exhaust flow something gotta give and that will be motor temps.. How many of you guys/gals that race at grandview on the hot summer days with the mud all over the radiators just make the end of the race without overheating. With the pea shooter rule you will never make the finsh.. ENGING TEMPS WILL GO UP ATLEAST 25 TO 50 degree...

  11. #11
    Join Date
    Dec 2006
    Posts
    164

    Thumbs up already done !

    I have told all the regular cars that run the Factory Stocks at Wall that have been competing with us about all the rules that will be in effect this race coming , but to make sure i put a post on the Wall board to remind anyone who might be thinking about running this race!!
    MR. RICK
    You Need

  12. #12
    Join Date
    Dec 2006
    Posts
    164

    Again doing the math

    tail pipe!!
    Well after doing the math a stock 2 1/2 single exhaust will flow 8.95 square , when you double that you get 17.90 square right !! if you cut it down to 1 1/2 inches at the last one foot you get 12.80 so i still would say since most cars came stock with a y pipe and single exhaust for the most part , so with that the motors that are more stock will benifit with the 12.80 ?? Only the big motors will get cut down !! I know that any change is an expense to you guys and the cheapest way to do this is to put the 1 1/2 tips on the exhaust ( $ 20 ) ?? rev limiters ( $95 ) and mandating a specific carb ( $300) and a gear rule ( $200 ) isn`t the way to go for know and raising the vacumm ( $??? ) rule will really cost money and alot if time !!( but a carb or raising the vacumm will be the next step) And i know no one wants that?? This division is going to remain an affordable division !! so lets keep it simple guys ! most of the cars who are running close as can be to stock wont have any issues with heat !! we have cars with single exhaust running all the time and they finish !! Bigger compression cars run hot anyway !!??
    MR. RICK
    MR. RICK
    You Need

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