Do you think since a SE CVO 103" can pull the rig easier than a TC-88" would you gain gas mileage??
The reason I think it would is because I would have to give it less throttle to gain the same crusing speeds.
Or I'm I all wet with this idea of mine.
I know that bigger displacement usually means lower mpg but at the same time the larger engine doesn't have to work as hard to pull the extra wieght of the tug.
What's your opinion?
Vic,
I can not talk about very big engines, just the 2 rigs I had, which were/are a MZ ETZ 250 with Superelastic metal s/c from 1986 to 1989 and now since 2004 a Jawa 350 with Velorex 562 a fibreglas s/c. Both are 2 strokers.
The MZ was a sucker. 10 - 11l/100km = 23,6 - 21,4 mpg while the Jawa is in deed slick: 3.8-4,3l/100km = 62 - 55 mpg.
But both are way under powered and did/do not withstand my riding style.
So I look for a bigger work horse for Jolly Roger.
4 stroke, water cooled and with comfortable suspension. Something that will last my rides through high mountain range.
Best regards
Sven
I don't think it is going to make much difference. Yes, more power = less throttle but also less MPG. I think it will equal out.
BTW, I used to live in Valley Springs (Hartvickson & Silver Rapids) until my company transferred me to So Cal about a year ago. I really miss it, especially the great roads around there. I used to do highway 26 to 49 to Jackson and then 88 over to Gardnerville, NV on a regular basis. My company HQ is in Manteca.
Chili Pepper Garage - 10/28/2009 12:47 PM
I don't think it is going to make much difference. Yes, more power = less throttle but also less MPG. I think it will equal out.
BTW, I used to live in Valley Springs (Hartvickson & Silver Rapids) until my company transferred me to So Cal about a year ago. I really miss it, especially the great roads around there. I used to do highway 26 to 49 to Jackson and then 88 over to Gardnerville, NV on a regular basis. My company HQ is in Manteca.
I live on Hironymous just off Gardner & hwy26 not far from Siver Rapids Rd.
My '03 TC is only giving me 25 to the best of 28mpg hwy and it seems that the SE 103" bikes get from 40 to 47mpg might do better,..at least I'm hoping,..I will be very pleased if I can get 30 to 32mpg hwy.
I got a deal on a brand new 2004 SE 103" crate motor still in the moco factory box that came all setup with efi,stater, and SE compensater sprocket,..litterally bolt in and play.
$3,750.00 couldn't pass on that.
Oh and I also have a ThunderMax Auto tune ECM for my bike so I will be able to make leaner AFR adjustments for my crusing speeds for better hwy milage.
It seems that sometimes a larger displacement engine and more HP actually gets better MPG. Then there are all the other variables like carbs vs FI, gear ratios, wheel sizes etc. which boggles my brain. I do know my 1440cc Road King gets about 35-37mpg and my Ural 750cc got about 30-32mpg
maddogvic - 10/28/2009 2:20 PM
Chili Pepper Garage - 10/28/2009 12:47 PM
I don't think it is going to make much difference. Yes, more power = less throttle but also less MPG. I think it will equal out.
BTW, I used to live in Valley Springs (Hartvickson & Silver Rapids) until my company transferred me to So Cal about a year ago. I really miss it, especially the great roads around there. I used to do highway 26 to 49 to Jackson and then 88 over to Gardnerville, NV on a regular basis. My company HQ is in Manteca.
I live on Hironymous just off Gardner & hwy26 not far from Siver Rapids Rd.
My '03 TC is only giving me 25 to the best of 28mpg hwy and it seems that the SE 103" bikes get from 40 to 47mpg might do better,..at least I'm hoping,..I will be very pleased if I can get 30 to 32mpg hwy.
I got a deal on a brand new 2004 SE 103" crate motor still in the moco factory box that came all setup with efi,stater, and SE compensater sprocket,..litterally bolt in and play.
$3,750.00 couldn't pass on that.
Oh and I also have a ThunderMax Auto tune ECM for my bike so I will be able to make leaner AFR adjustments for my crusing speeds for better hwy milage.
My boss lives on Gardner Place (house with windmill in front yard).
$3750 is a great deal for that motor. Might as well use it. One other factor that comes with the bigger motor: more power = more throttle! If you have the power you tend to use it. Quicker starts and faster speeds. Personally, I'd rather have more power and equal or a little less MPGs.
I have a 2010 FLHX but have jsut under 500 miles on it. Still in break in period and haven't computed my mileage yet. Need to get a few more miles on it and will check it out. Then will put on the sidecar and compare. It's 96", 6 speed, FI, stock except exhaust.
Have you had the fuel mixture recalibrated since the exhaust was changed?
With the newer FI systems any change of intake (air cleaner) or exhaust will affect the fuel/air ratio.
Some will wait until the initial break in period is over but it should be checked at some point for an extra lean condition. Extra rich just uses more fuel. Lean conditions can cause more expensive problems.
Lonnie
Lonnie, I bought the bike from the dealer with the Screamin' Eagle slip on already installed. I never asked them about the fule mixture but I will. I thought with FI you didn't have to adjust anything. Do they do a reporgram of the ECU?
Chili Pepper Garage - 10/29/2009 9:16 AM
Lonnie, I bought the bike from the dealer with the Screamin' Eagle slip on already installed. I never asked them about the fule mixture but I will. I thought with FI you didn't have to adjust anything. Do they do a reporgram of the ECU?
I was under that impression also...I bought mine used with after market exhaust and do not know if it was recalibrated for that or not.
if its 2007 or later & its NOT molested it will have O2 sensors in the exhaust pipes - they self tune within a range. you can change mufflers or air cleaner and it will self adjust
when you do both mufflers and air cleaners it "probably" will self adjust - you may want to check carefully.
in any case as long as the ox sensors are not disabled its really pretty safe.
there ARE "tuning tools" that disable the ox sensors - at that point you really had better have it on a dyno with a good hand at it or it will get cooked at some point. same with older bikes - on 06 and older - change anything and it really should have a hour or two on a dyno.
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