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> 914-6's, who are running megaphone type exhaust.
mlindner
post Mar 4 2021, 02:14 PM
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I have a beautiful set of Ben's header and his sport exhaust. Would like the exhaust a lot louder, what are you guys running. Mark
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brant
post Mar 4 2021, 02:24 PM
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full open
not megaphones

I went from 2 separate exhausts to a cross over system
dyno'd at an additional 14 ft. lbs. back to back
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Jetsetsurfshop
post Mar 4 2021, 06:38 PM
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QUOTE(brant @ Mar 4 2021, 12:24 PM) *

full open
not megaphones

I went from 2 separate exhausts to a cross over system
dyno'd at an additional 14 ft. lbs. back to back


Who's system do you have? Whats it look like?
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vintage914racer
post Mar 4 2021, 07:40 PM
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QUOTE(Jetsetsurfshop @ Mar 4 2021, 04:38 PM) *

QUOTE(brant @ Mar 4 2021, 12:24 PM) *

full open
not megaphones

I went from 2 separate exhausts to a cross over system
dyno'd at an additional 14 ft. lbs. back to back


Who's system do you have? Whats it look like?


Agreed. I'd like to see it as well.

I'm running megaphones...
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wndsrfr
post Mar 5 2021, 07:46 AM
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I'm running both megaphones and glass packs depending on my mood and the noise restrictions at whatever track I'm going to next....
Here's a couple of photos, not pretty but you get the idea....
The glass packs are "Jones Turbine" and are 2 inch inlet & outlet--had a local muffler shop weld on the flange.
Interesting to note....dyno runs with both show no difference...215ish so guess it's not the muffler that is controlling top end....
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Here's a link to the Jones mufflers at Summit....
https://www.summitracing.com/parts/jex-jr20...TIaApfCEALw_wcB

PS, Yes, that's Peter Dawe at the dyno.... (IMG:style_emoticons/default/pray.gif)
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brant
post Mar 5 2021, 11:23 AM
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things are crazy busy right now..
I just took pictures from my build thread to save time

original exhaust was straight through twin borla Stainless mufflers

2nd exhaust is not a true cross over. a true cross over should/could be even better
this is just a collector that brings the banks together at the very end of the system

still picked up 14ft lbs on a back to back dyno run



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brant
post Mar 5 2021, 07:00 PM
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QUOTE(Jetsetsurfshop @ Mar 4 2021, 05:38 PM) *

QUOTE(brant @ Mar 4 2021, 12:24 PM) *

full open
not megaphones

I went from 2 separate exhausts to a cross over system
dyno'd at an additional 14 ft. lbs. back to back


Who's system do you have? Whats it look like?


AJRS built on the spot.. before my eyes. 20 minutes
And then we dyno’d
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brant
post Mar 5 2021, 07:27 PM
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Current pictures

Many years later



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mlindner
post Mar 8 2021, 03:59 PM
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Thanks all for the reply.I have a set from Accumoto to test, sound is great. Will post a video when It works. Mark
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stownsen914
post Mar 9 2021, 10:19 AM
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I've run megaphones and an open 2 into 1 on my 2.7L race engine. I haven't dyno'd and honestly couldn't distinguish with the butt dyno either, but have always heard that the 2 into 1 will give better mid range.

I just saw a nice looking custom 2 into 1 in the classifieds.
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bretth
post Mar 9 2021, 10:42 AM
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Get a Scart muffler.
https://www.youtube.com/watch?v=dXbVkl6CQ_Q
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stownsen914
post Mar 9 2021, 02:20 PM
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http://www.914world.com/bbs2/index.php?showtopic=351925
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Trekkor
post Mar 12 2021, 07:41 PM
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This post has been edited by Trekkor: Mar 12 2021, 07:44 PM
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wndsrfr
post Mar 12 2021, 09:12 PM
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Here ya go with the Jones resonators....pump up the volume & enjoy!
https://www.youtube.com/watch?v=8H-i1WCOib4
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Trekkor
post Mar 12 2021, 09:24 PM
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https://youtu.be/JL7RoUdv_nk

KT
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Justinp71
post Mar 22 2021, 10:39 AM
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I agree combining your exhaust gives extra power. I drove a more highly modified 3.0 with super trapps vs my more stock 3.0 (at the time) with combined exhaust and the difference of the two motors was not as noticeable as I would have thought. Meaning I believe having straight out exhaust combated his mods, but it was less drony.
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BadToTheBown
post Apr 19 2021, 10:13 PM
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Just updated to cookie cutters from my SuperTrapps, certainly loud...

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carr914
post Apr 20 2021, 04:50 AM
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