Full Version: 914-6's, who are running megaphone type exhaust.
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
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
not megaphones
I went from 2 separate exhausts to a cross over system
dyno'd at an additional 14 ft. lbs. back to back
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?
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...
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....
Click to view attachment Click to view attachment
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....
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....
Click to view attachment Click to view attachment
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....
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
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
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
Current pictures
Many years later
Many years later
Thanks all for the reply.I have a set from Accumoto to test, sound is great. Will post a video when It works. Mark
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.
I just saw a nice looking custom 2 into 1 in the classifieds.
Here ya go with the Jones resonators....pump up the volume & enjoy!
https://www.youtube.com/watch?v=8H-i1WCOib4
https://www.youtube.com/watch?v=8H-i1WCOib4
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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