Suzuki Burgman modification (aerodynamics + gearing mods) - Page 12 - Fuel Economy, Hypermiling, EcoModding News and Forum

AaronD · 05-25-2010, 07:36 AM

Sounds useful Jan. Might also be nice if you can measue fuel flow accurately. Then you would not only have a log of instantaneous fuel mileage during different conditions, but also might highlight some unexpectedly high (or low) mileage conditions to strive for (or avoid) in your daily driving technique.

janvos39 · 05-26-2010, 03:09 PM

Here the first logfile of the camshaft revs during the drive to work.For engine revs multiply with 2.
Max is 6000 rpm at approx 75 mph.
Next to come is the speed sensor so that the relation engine revs vs speed can be printed.

The commute takes 2176 seconds in this case. Idle is at 1200 rpm
This are approx 20000 data points taken from the sensor on the camshaft.

jbond · 07-06-2010, 08:04 AM

Jan, another Burger 400 owner here. Really nice work so far.

Did you think about lowering the seat? If you junk the seat completely and remake a new pad, there's maybe 5-7 cm lowering available. The limit is the frame cross-member at the back of where you want to sit. This would then mean sitting further forwrad which in turn means you really need to extend the footboards. And round and round we go.

Lots of pics of mine on bikeweb.com

If anyone started making alternate final drive sets for the AN400K3 and up, I'd be interested. I can just hit the rev limiter in top and could use a longer gear ratio. Even though I'm also using a Malossi CVT kit which is great for mid-range acceleration but terrible for gas mileage.

janvos39 · 07-06-2010, 01:41 PM

Hi JBond
What you write on the seat height is exactly what I have done. I took of the seat and started with an aluminum plate where a placed some foam on. I am still sitting comfortable maybe max. 5 cm more forward. No problems with my legspace.
Seat height is now approx 62 cm. I will check your bike on the bikeweb.
Gears I make myself . If you are sometimes in Belgium we can discuss possibilities for k3 gears. regards Jan

AaronD · 11-30-2010, 10:37 AM

Been a long time since the last post. How have you been doing Jan? Enjoying the ride I hope.

janvos39 · 01-21-2011, 11:05 AM

Indeed a long time since a made some comments. I am still trying smaller carburettors on the now 297 cc burgman. Still have to find to correct setting for that. In the mean time my overrunning clutch broke. So I made one myself with more solid blocking elements. Still have to install it. But wintertime is spoiling the progress somewhat.

AaronD · 01-21-2011, 11:42 AM

Glad to hear that you're still plugging away at it. Seems that solving carbeuration/tuning problems is often as much art as science, and it takes pros like you to do it right. Keep up the good work. Hopefully she at least ran well for you this past summer riding season, until the clutch broke that is.

tomauto · 02-03-2011, 07:23 PM

Love what you are doing with the Suzuki. Maybe one day I can try this too!

HHOTDI · 02-13-2011, 11:40 PM

I just bought my Scooter and am picking it up tomorrow. Over the next few months I hope to have it broke in, stream lined and we'll see what I can squeeze out of it. Craig mentioned that he will have a few more of his High Mileage Contests this year. Hope to see some of you there! :{)

janvos39 · 02-14-2011, 08:33 AM

HHotdi What type of scooter did you buy?
Have you any info on the gear and belt ratio. I am intersted to know what the erev range is.