Dresser Duals - Headpipe Blued

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Dec 19, 2007 | 03:05 PM

steelhead

Thread Starter

Road Master

Joined: Apr 2007

Posts: 938

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From: Seattle WA area

Dresser Duals - Headpipe Blued

I recently installed V&H Dresser Duals on my '01 RKC. I had been running stock headers with V&H Basic slip-ons, a hi-flow AC and a PC III. The install went well, no problems and I loaded a map from Jamie at FuelMoto which was based on my set-up. The bike is running well, mpg is down significantly but that might be just throttle twist related.

My issue is I just noticed when washing it on Saturday that the rear headpipe is significantly blued while the frony looks brand new. Now I have been running the bike with ambient temps in teh 30s and 40s so maybe the front is getting cooled that way. The level of discoloration on the back bothers me though since I have only several hundred miles on it. I'm not experiencing any significant decel popping nor do I see any signs of an exhaust leak. I changed the gaskets out on the install and have made sure the headbolts have not backed off. I will pull the plugs this weekend and see how they look.

Anyone else experience this? Is it normal? If not, any check fors?

Dec 19, 2007 | 03:26 PM

texaspirate

Road Captain

Joined: Jul 2007

Posts: 501

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From: Galveston Bay Area, The Republic of Texas

RE: Dresser Duals - Headpipe Blued

I have dresser duals and oval slip-ons on my 07 UC. The rear pipe is more blued than the front. I run a V&H fuelpack instead. From V&H tech group the rear cylinder runs a little hotter and leaner than the front cylinder causing this issue. Even with the proper map program in place. V&H said this is normal on all new 07 models with the O2 sensor equipped engines. Best I can help you with this!

Dec 19, 2007 | 03:41 PM

xxxflhrci

Extreme HDF Member

Joined: Sep 2006

Posts: 10,033

Likes: 29

RE: Dresser Duals - Headpipe Blued

Common. Don't sweat if your plugs read good.

Dec 19, 2007 | 05:35 PM

sifularson

Elite HDF Member

Joined: Jun 2006

Posts: 3,698

Likes: 11

From: Longview, Washington

RE: Dresser Duals - Headpipe Blued

Quote:

ORIGINAL: steelhead

I recently installed V&H Dresser Duals on my '01 RKC. I had been running stock headers with V&H Basic slip-ons, a hi-flow AC and a PC III. The install went well, no problems and I loaded a map from Jamie at FuelMoto which was based on my set-up. The bike is running well, mpg is down significantly but that might be just throttle twist related.

My issue is I just noticed when washing it on Saturday that the rear headpipe is significantly blued while the frony looks brand new. Now I have been running the bike with ambient temps in teh 30s and 40s so maybe the front is getting cooled that way. The level of discoloration on the back bothers me though since I have only several hundred miles on it. I'm not experiencing any significant decel popping nor do I see any signs of an exhaust leak. I changed the gaskets out on the install and have made sure the headbolts have not backed off. I will pull the plugs this weekend and see how they look.

Anyone else experience this? Is it normal? If not, any check fors?

This is exactly the reason that I'll be paying for a dyno tune in the spring. They will tune each cylinder to get the best overall tune for the engine. I am still undecided whether I will keep the PCIII or buy a SERT before the tune. I am leaning toward the SERT.
Steve L.

Dec 19, 2007 | 07:07 PM

eglidetrike1

Road Master

Joined: Nov 2007

Posts: 751

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From: Glenside Pa.

RE: Dresser Duals - Headpipe Blued

The rear cylinder always runs a little hotter. Don't worry.

Dec 19, 2007 | 07:35 PM

MrHd1

Tourer

Joined: Aug 2007

Posts: 452

Likes: 2

From:

RE: Dresser Duals - Headpipe Blued

On the new motor I have a little experience tuning the SERT. You can tune it all as mentioned including open and closed loop. The PC eliminates the 02sensors. I've heard that the PCs have a tendency to go belly up after about two years. This is attributed to their exposure being on the bike all the time. BTWBlue Job does a nice "job" of removing the discoloration.