Englishtown crew....
02-05-2009, 01:15 PM
#1
Englishtown crew.... Any of you guys running mufflers right off the headers and racing in muffled classes?
I used to have to race un-muffled class, with a full exhaust and loud mouth, then with a full exhaust and bullets, but a couple people told me to just run a baffled muffler just off the header with a turn down. Will that pass the tech guy at E town for a "muffled" vehicle? Trying to get a little lighter.
Thanks in advance,
Christian
I used to have to race un-muffled class, with a full exhaust and loud mouth, then with a full exhaust and bullets, but a couple people told me to just run a baffled muffler just off the header with a turn down. Will that pass the tech guy at E town for a "muffled" vehicle? Trying to get a little lighter.
Thanks in advance,
Christian
02-05-2009, 02:59 PM
#3
CARTEK Racing
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not sure about "baffled muffler" though...
tektrans copied my exhaust, mufflers are only so by name... they are prety much strait thru, but we both pass tech at E-Town...
You also have to be under 92dB regardless of exhaust setup... so they say...
02-05-2009, 03:18 PM
#5
BTW I talked to you one wednesday waiting for the gates to open, I had the Black SS on the open 2 Car trailer.
I will call them, but the last time I was told about the behind the door thing, they didnt mention not to use bullet mufflers, and then the tech guy made me run un muffled class. So Im doing another exhaust... Basically no one ever gave me a 100% straight answer one way or the other, so I was hoping to see what you guys get through with.
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02-06-2009, 12:42 PM
#9
They have to be baffled as per etown rules but Alex and I both pass with Dynatech Spitflows. Whatever you choose just make sure it's an oval muffler so they think it's baffled, if you go in there with round or bullet syle mufflers that don't look like they could be baffled you'll fail.
02-06-2009, 01:03 PM
#10
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They have to be baffled as per etown rules but Alex and I both pass with Dynatech Spitflows. Whatever you choose just make sure it's an oval muffler so they think it's baffled, if you go in there with round or bullet syle mufflers that don't look like they could be baffled you'll fail.
We use the 4"x7"x14" oval mufflers, 3" in and 3" out, not offset.
02-06-2009, 04:16 PM
#12
super 44's are 2 chamber and are legal legal no shady BS questionable, and I dyno tested with them on/off and there was a 4 hp difference with them on /off, and I gained 9 rwtq with them on vs off almost all the way across the rpm range.
That being said, just put a pair of 44 series on, if they wanted to be picky there's nothing there that's suspect.
Honestly whatever you use for pipe after the muffler isn't gonna me that much to make that much if a weight difference. My mufflers are about under the seat with about 16 inches of pipe before them (3.5 inch) and there's about the same after the muffler.
Next setup will be the same muffler with 4 inch in and out pipe, and I will aim the exit's toward the middle of the car/down at eachother at about a 45 degree angle, which should help with the added noise, at least I hope.
That being said, just put a pair of 44 series on, if they wanted to be picky there's nothing there that's suspect.
Honestly whatever you use for pipe after the muffler isn't gonna me that much to make that much if a weight difference. My mufflers are about under the seat with about 16 inches of pipe before them (3.5 inch) and there's about the same after the muffler.
Next setup will be the same muffler with 4 inch in and out pipe, and I will aim the exit's toward the middle of the car/down at eachother at about a 45 degree angle, which should help with the added noise, at least I hope.
02-06-2009, 05:41 PM
#13
super 44's are 2 chamber and are legal legal no shady BS questionable, and I dyno tested with them on/off and there was a 4 hp difference with them on /off, and I gained 9 rwtq with them on vs off almost all the way across the rpm range.
That being said, just put a pair of 44 series on, if they wanted to be picky there's nothing there that's suspect.
Honestly whatever you use for pipe after the muffler isn't gonna me that much to make that much if a weight difference. My mufflers are about under the seat with about 16 inches of pipe before them (3.5 inch) and there's about the same after the muffler.
Next setup will be the same muffler with 4 inch in and out pipe, and I will aim the exit's toward the middle of the car/down at eachother at about a 45 degree angle, which should help with the added noise, at least I hope.
That being said, just put a pair of 44 series on, if they wanted to be picky there's nothing there that's suspect.
Honestly whatever you use for pipe after the muffler isn't gonna me that much to make that much if a weight difference. My mufflers are about under the seat with about 16 inches of pipe before them (3.5 inch) and there's about the same after the muffler.
Next setup will be the same muffler with 4 inch in and out pipe, and I will aim the exit's toward the middle of the car/down at eachother at about a 45 degree angle, which should help with the added noise, at least I hope.
I'll try em..
02-07-2009, 07:14 AM
#14
By all means use what ya got. I've never seen an exhaust made from alum, but I don't see why you can't. I'm sure the heat isn't gonna make it very happy, but the back 1/2 after the mufflers should be fine. I'd just be worried abotu welding the alum to the steel, but if you're gonna just flare it and clamp it you should be fine.
02-07-2009, 07:36 AM
#15
By all means use what ya got. I've never seen an exhaust made from alum, but I don't see why you can't. I'm sure the heat isn't gonna make it very happy, but the back 1/2 after the mufflers should be fine. I'd just be worried abotu welding the alum to the steel, but if you're gonna just flare it and clamp it you should be fine.
Last edited by BADD SS; 02-07-2009 at 07:48 AM.
02-07-2009, 07:43 AM
#16
absolutely. I don't know if ya have a way to bend that stuff, but I'd aim the exhuast down/out the sides/at each other under the car, just to help with the sound deadening a little bit.
They check the db level from behind the car fyi, strait pipe aimed at the back will be the loudest possible, so aim them out the sides, at each other, whatever you can. It will help
They check the db level from behind the car fyi, strait pipe aimed at the back will be the loudest possible, so aim them out the sides, at each other, whatever you can. It will help
02-07-2009, 07:51 AM
#17
absolutely. I don't know if ya have a way to bend that stuff, but I'd aim the exhuast down/out the sides/at each other under the car, just to help with the sound deadening a little bit.
They check the db level from behind the car fyi, strait pipe aimed at the back will be the loudest possible, so aim them out the sides, at each other, whatever you can. It will help
They check the db level from behind the car fyi, strait pipe aimed at the back will be the loudest possible, so aim them out the sides, at each other, whatever you can. It will help
I can only bend 2" and smaller on my bender, but I'll just section it, and weld and make a bend.
Sorta like this, but with a much tigher radius...
I was thinking of having an exit right infront of the rear wheel