Left slipon very discolored

Reply Subscribe

Thread Tools

Search this Thread

#11

06-27-2016, 09:01 AM

craigffb

Outstanding HDF Member

Join Date: Jun 2010

Location: Clarksville, TN

Posts: 2,859

Likes: 109

Received 167 Likes on 132 Posts

OP it's normal. It's the way the spent exhaust flows through your pipes. Anyone running power dual will tell you the same thing. My left muffler tip is the very same way.

Reply Like

#12

06-27-2016, 09:41 AM

mkguitar

Extreme HDF Member

Join Date: Sep 2010

Location: Phoenix '53, '88, '09 Big Twins

Posts: 14,746

Likes: 4

Received 394 Likes on 336 Posts

likely the reduced velocity on the left side ( at most rpms, due to the design of the 2/1/2 header) allows soot to gather at the tip.

but refer specific questions to V&H

Mike

Reply Like

#13

06-27-2016, 07:45 PM

checkers

Ultimate HDF Member

Join Date: Jan 2009

Location: East Tn Foot of The Dragon

Posts: 5,016

Likes: 82

Received 273 Likes on 237 Posts

Quote:

Originally Posted by morogold

Thanks for the reply guys. Just to be clear, the discoloration is in the exhaust tip end....the left side is like 5 times darker than the right which stays clean.
I didn't do a stage one download from HD when I added the air intake and exhaust. I was told by VH that the FP3 will correct the ECM for this setup.
I'm not sure with fooling with the mixture control on the FP3...when I call VH customer service maybe they can direct me.

It's because the left muffler runs colder then the right muffler and does not burn the pipe clean inside also less velocity thought left muffler. Normal.

Reply Like

#14

06-27-2016, 08:38 PM

morogold

Advanced

Thread Starter

Join Date: Dec 2014

Location: new rochelle, ny

Posts: 77

Likes: 0

Received 1 Like on 1 Post

Thanks again for the replies. I called VH and they verified what has been said... the left pipe runs cooler and has much less velocity of exhaust due to the bends. Therefore doesn't burn off the mixture as well as the right side. Just requires more cleaning. Same thing with dresser duals. I appreciate the knowledge on this forum. So I guess my case is closed