Author Topic: New Exhaust  (Read 9073 times)

Offline Bugsmasher

Re: New Exhaust
« Reply #15 on: February 03, 2015, 04:37:54 PM »
I was wanting to fab mine up from Inconel...lots of Nascar shops near me but all their tube is huge....1.875"+. Hoping to find some smaller tubes for a 2 into 1 step header design. Seems more likely for me to fab them from stainless as it is much easier to locate mandrel bends. A 4 into 1 collector would help scavenge exhaust pulses and kill some Db's a bit. I have been searching for mandrel bent .032" stainless....waiting on a couple samples now after looking into some race bike shops for tubing size I want.
They ask me what it's made of.....I tell them bed sheets and broomsticks seem to fly best....

Offline docmatt

  • doc matt
  • 2015 Donor
  • *
  • Posts: 53
  • Total likes: 0
  • DE E-04 under construction
  • Eagle Type: DE
Re: New Exhaust
« Reply #16 on: February 03, 2015, 07:57:46 PM »
I plan to get a Milwaukee heated jacket anyway.  There is lots of heated clothing of all types for motorcyclists.  I still really like driving in a convertible with the top down and the heat on a cool evening...
doc matt
DE E-04 under construction
Mineral Point, WI

Offline MrG

  • Full Member
  • ***
  • Posts: 194
  • Total likes: 5
  • Builder - Pilot
  • Eagle Type: DE E-77
Re: New Exhaust
« Reply #17 on: February 04, 2017, 01:59:38 PM »
This is what i did and the small cost of weight was nothing to worry about for the saving in noise, before we put a resonator on it, both prop and exhaust noise, they recon it was worse than the T6 we have here. ( I may not be the fastest - but they know its me )
The 2 neighbours have (A Sonix and a Onex with same engines ) and are extremely quiet to mine,  and they have 2into 1's, I did have 11:1 compression till yesterday and will find out to day if 8.5:1 is quieter ( swapped stock 1600cc heads for CB Performance heads), that being this is the 3rd exhaust and ALL have just been as noisy
As of Friday the plane is now on the register and completed its test phase
Temora Airport  Australia
1st Aussie DE built/flown
1 Oct 2015 First Flight
Feb 2019 - 155 hrs Flown
March 4th removed from service for Cabin Mods

Offline Dan_

Re: New Exhaust
« Reply #18 on: February 04, 2017, 03:47:11 PM »
That's one sexy exhaust system...


“A superior pilot uses his superior judgment to avoid situations which require the use of his superior skills.”

– Frank Borman, Apollo 8 Commander