Changed mufflers, should I re-map?
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Road Master
Joined: Aug 2005
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Changed mufflers, should I re-map?
I've had a V&H true dual exhaust system with Oval slip-ons and SE air filter on my bike with a PCIII.
I recently swapped out my V&H Ovals for the stock mufflers. Everything else stayed the same.
Should I make any changes to my map?
Does the bike typically run richer / leaner with stock mufflers over the V&H Ovals?
I recently swapped out my V&H Ovals for the stock mufflers. Everything else stayed the same.
Should I make any changes to my map?
Does the bike typically run richer / leaner with stock mufflers over the V&H Ovals?
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Road Master
Joined: Aug 2005
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RE: Changed mufflers, should I re-map?
Bike seems to run normal.
But things aren't always as they appear.
Does the added back pressure of the stock mufflers make the bike run a bit richer than the V&H Ovals?
But things aren't always as they appear.
Does the added back pressure of the stock mufflers make the bike run a bit richer than the V&H Ovals?
Tourer
Joined: Jun 2005
Posts: 371
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From: Las Vegas, NV
RE: Changed mufflers, should I re-map?
Why are you going in the opposite direction of most? And yes , I would think a new map (dyno) is in order. I have the V&H ovals, and want to go with the dresser duals. I was thinking I could add them without a new MAP, but I am not sure. Seem to me like a rather insignificant change.
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Road Master
Joined: Aug 2005
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RE: Changed mufflers, should I re-map?
I went backwards because my morning ride keeps waking up my youngest daughter. My wife asked me if I would put the stock mufflers on until she starts sleeping better.
Starting that bike in the garage at 6am could be shocking!
Starting that bike in the garage at 6am could be shocking!
Road Master
Joined: Sep 2006
Posts: 999
Likes: 7
From: Allentown,Pa.
RE: Changed mufflers, should I re-map?
I have a 07 ultra with the true duals and the terry fuel/air system and stage one air cleaner,I tried staying with the stock mufflers and because of the design of them IMHO its not a good mix,I went with the screaming eagle touring mufflers(80463-06) which are not loud and sound great and REALLY made a difference in the way it runs.
Road Warrior
Joined: Mar 2006
Posts: 1,807
Likes: 1
From: North Jersey
RE: Changed mufflers, should I re-map?
ORIGINAL: Anthony8858
Starting that bike in the garage at 6am could be shocking!
Starting that bike in the garage at 6am could be shocking!
I would think you would have to re-map, but if the bike is running OK I'd just leave it alone.
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Road Master
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RE: Changed mufflers, should I re-map?
Yeh, the little ones waking before Mommy could cause a hazardous condition for me.[&:]
As far as the map....Well, I'm a little lost on this one....
Here's why:
When I installed the V&H True duals, with Oval slipons, I simply uploaded a map from the PowerCommander website, added a little fuel in the 0% throttle to eliminate some popping, and I was on my way.
In this case, there obviously is no map for my true dual / SE air filter and stock mufflers, so I don't have a starting point like I did before.
I guess if I could establish whether or not Ovals run leaner than stock because of the back pressure, I could then reduce some fuel to compensate.
As far as the map....Well, I'm a little lost on this one....
Here's why:
When I installed the V&H True duals, with Oval slipons, I simply uploaded a map from the PowerCommander website, added a little fuel in the 0% throttle to eliminate some popping, and I was on my way.
In this case, there obviously is no map for my true dual / SE air filter and stock mufflers, so I don't have a starting point like I did before.
I guess if I could establish whether or not Ovals run leaner than stock because of the back pressure, I could then reduce some fuel to compensate.
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Road Captain
Joined: Sep 2006
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RE: Changed mufflers, should I re-map?
my bike doesnt show up for another couple of weeks. Its getting a stage one kit before I pick it up. VH oval slip ons. Is there that much diffence in the noise between stock and vh slip ons???