When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Prior to cam install this winter I was running SE intake, slip on's and stage one download. Now, with all of that still I installed a set of SE 203's. Bike runs great but I have gone from low 40's to 32 mpg.
I figured I was going to have some loss in mileage but that seems a bit extreme. Sucks to have to stop every 150 miles to fuel up especially since I have some long trips planned this summer.
Just wondered if anyone has the 203's and what they are getting?
A proper tune should get you at least as good of MPG as you had before. Quality of fuel will affect it too. I installed Andrews 48h cams in my 2010 Ultra, 96 CI. It was stage 1 with SEPRT. I went with TTS & hauled it to Docs Performance Tuning in Mineola Fla for a dyno tune. We drove almost 1000 miles round trip to get him to tune it, no other reason for going there. I was getting 38 to 40 MPG before all the work. Bike runs like a totally different bike now, pulls very hard! I got 43 MPG on a Cherohala Skyway ride this week, running BP 93 octane. Its all in the tune bro.
A proper tune should get you at least as good of MPG as you had before. Quality of fuel will affect it too. I installed Andrews 48h cams in my 2010 Ultra, 96 CI. It was stage 1 with SEPRT. I went with TTS & hauled it to Docs Performance Tuning in Mineola Fla for a dyno tune. We drove almost 1000 miles round trip to get him to tune it, no other reason for going there. I was getting 38 to 40 MPG before all the work. Bike runs like a totally different bike now, pulls very hard! I got 43 MPG on a Cherohala Skyway ride this week, running BP 93 octane. Its all in the tune bro.
I forgot to mention, this Cherohala trip was ridding 2 up!
Although my '99 TC88 had a Carb, I first had the SE intake, and SE Slip ons. Then after 2 years installed the SE203 cams when replacing the cam bearings - mileage after the cam install was the same as before. Since everything you listed is MoCo, dealer will have proper download for the combination.
Wait for warmer weather. I put 555's in and the mileage sucked. I took it out yesterday afternoon when it was a lot warmer and picked up 5 mpg. Winter mileage sucks.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.