xmod97 Posted October 9, 2012 Report Share Posted October 9, 2012 I have been asked what type muffler you can run. You Must run one of these un-altered Mufflers or inserts: SCHOENFELD IMCA609, LOBACK MUFFLER, EXTREME MUFFLER P/N 1014-3030 or 1114-3535, DYNTECH 11" AUGER INSERT or SPEEDWAY 11" UN-ALTERED AUGER INSERT. TURN DOWNS ARE REQUIRED. NO EXHAUST MAY EXIT OUT THE SIDE OF CAR. Link to comment Share on other sites More sharing options...
dancer52 Posted October 9, 2012 Report Share Posted October 9, 2012 Ok...so do all cars in the street stock shootout have to have this...even if they are only running 1 race here? What about cars that have fender well exit headers....they are legal in the series...can they not run? Link to comment Share on other sites More sharing options...
xmod97 Posted October 9, 2012 Author Report Share Posted October 9, 2012 Ok...so do all cars in the street stock shootout have to have this...even if they are only running 1 race here? What about cars that have fender well exit headers....they are legal in the series...can they not run? street stock shootout race, you run by your home track rules. All other classes run under Cotton Bowl Speedway rules. Link to comment Share on other sites More sharing options...
gone with the win Posted October 9, 2012 Report Share Posted October 9, 2012 I have no problems running IMCA mufflers on my car, but turn downs also wouldn't make since on header like on my modified, which are 3 ft off the ground. Link to comment Share on other sites More sharing options...
Dennis Posted October 9, 2012 Report Share Posted October 9, 2012 Jamie,turn downs work even on your car to reduce noise. Link to comment Share on other sites More sharing options...
dancer52 Posted October 9, 2012 Report Share Posted October 9, 2012 Jamie,turn downs work even on your car to reduce noise. Â Â I disagree....if the track is packed in...the sound rebounds off and the ground and actually makes it louder....from what I understand straight out the back gets the lowest readings Link to comment Share on other sites More sharing options...
A11Nhobbystock Posted October 10, 2012 Report Share Posted October 10, 2012 Ok...so do all cars in the street stock shootout have to have this...even if they are only running 1 race here? What about cars that have fender well exit headers....they are legal in the series...can they not run? street stock shootout race, you run by your home track rules. All other classes run under Cotton Bowl Speedway rules. Â I have a gator hobby. So my 4 barrel is legal in the street stock race Link to comment Share on other sites More sharing options...
salvagemotor Posted October 10, 2012 Report Share Posted October 10, 2012 Ok...so do all cars in the street stock shootout have to have this...even if they are only running 1 race here? What about cars that have fender well exit headers....they are legal in the series...can they not run? street stock shootout race, you run by your home track rules. All other classes run under Cotton Bowl Speedway rules. Â I have a gator hobby. So my 4 barrel is legal in the street stock race mark 7a and 48 went to edna with gator rules.. had no problems with rules Link to comment Share on other sites More sharing options...
A11Nhobbystock Posted October 10, 2012 Report Share Posted October 10, 2012 Thanx Link to comment Share on other sites More sharing options...
sm44 Posted October 10, 2012 Report Share Posted October 10, 2012 Is this the track bing pro active to keep neigbors happy or a requirement by the city/county? Not that is matters cause we will do what is asked, just curious. joe Link to comment Share on other sites More sharing options...
dancer52 Posted October 10, 2012 Report Share Posted October 10, 2012 As far as I know its just proactive... personally I wish every track would go to them. Link to comment Share on other sites More sharing options...
NickHolt Posted October 10, 2012 Report Share Posted October 10, 2012 I did a lot of research on sound containment when I was working at THR. We were faced with a serious challenge from the neighbors and it was either quiet the cars down or padlock the gates. Â With all else equal, the best direction to point the exhaust was straight down towards the track according to all the dB meter readings I obtained over a six month period. I assume this would also be true on a dirt track - perhaps even more so since the surface is not as reflective as asphalt. Â I hope this information helps. Â Nick Link to comment Share on other sites More sharing options...
Danielsen Motorsports Posted October 10, 2012 Report Share Posted October 10, 2012 I went to mufflers this year to save my ears and I am happy with the sound and gain in ponies. Link to comment Share on other sites More sharing options...
xmod97 Posted October 10, 2012 Author Report Share Posted October 10, 2012 I have been asked what type muffler you can run. You Must run one of these un-altered Mufflers or inserts: SCHOENFELD IMCA609, LOBACK MUFFLER, EXTREME MUFFLER P/N 1014-3030 or 1114-3535, DYNTECH 11" AUGER INSERT or SPEEDWAY 11" UN-ALTERED AUGER INSERT. TURN DOWNS ARE REQUIRED. NO EXHAUST MAY EXIT OUT THE SIDE OF CAR. Ok I understand the limited Modified & Modified headers that exit out the side do not have room to add a turn down, if that is the case we will look at that problem in Tech. (just run the muffler). Street stocks if you have fender well headers that all ready exit down you will not need turn downs. (Street Stock Shoot out cars run there home track rules for Nov. 3 2012) but our rules for 2013 will require the muffler rule for all classes. Most tracks have a muffler rule and we need to work with our neighbors that are close to the track. Thanks Link to comment Share on other sites More sharing options...
dy97 Posted October 11, 2012 Report Share Posted October 11, 2012 I went to mufflers this year to save my ears and I am happy with the sound and gain in ponies. Im running mufflers this year too. I like them because i can hear people all around me.. really saved me in the ss shoot out race at goliad first lap turn 3 in the heat.. i would say thats the main reason i won that heat rather than sitting out with a broke axle.. cant see that they gained or lost me any power.. either way i like them Link to comment Share on other sites More sharing options...
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