lplplplp

Theoretically the under-tail exhaust "should" have positive effect by giving the bike a tail! so maybe that makes up for its inferior aerodynamics. I remember this being talked about on the mc-chassis list (in the 90's!) I think Tony Foale (chassis guy ) was active then (but my memory sux so maybe we were just talking about him 🙂

I certainly don't expect this to be in anyway equivalent to a real dyno. the ECU software asks for a Cd so I started thinking down the path of what the VFR might be, that's all. I realize it won't give me a real number but I do think it will be a useful tuning tool, esp with extensive data logging capabilities along side. It occurs to me that without some sort of sensitive IMU I dare say the graph will not resolve fine details. hmm I think that might even be an option. anyway i'll report back if I get some meaningful results. ...whenever I get a chance to do it.

"The average passenger car on the road today has a drag coefficient (the measure of air resistance) of about 0.3 (a lower number being better). Even a large, blocky car like a full size SUV or my ’87 Westfalia camper rate around 0.4. A racing motorcycle with a smooth, full fairing and professional rider in a full tuck? 0.6. In other words, those 5’9” jockeys crunched up behind the windscreen of a tiny Moto3 grand prix bike create more drag in the air than a Chevrolet Suburban" So it might seem to be closer to 1....I think the table above might be for unfaired MC with an upright rid

' yikes

thanks I'll check it out.

True. But that would take effort! LOL the ecu I am looking at has a virtual dyno built in. But at the end of the day it matters little since its only for tuning.

I have been wondering what the CoD numbers might be for a 6th Gen? I wonder if honda ever published this data? Of course rider and rider position must have a large effect. I would love to get some rudimentary numbers so I can play around with HP calcs.

Hi lplplplp, Thank you for your donation of 25.00 USD. We look forward to improving the forums with your donation. Thanks VFRDiscussion

its a sickness....I like my convenience but I like my weight reduction just as much!

I'm an idjit! and getting old! Its been a LONG time since I read the thread, I do remember this bit now.😏 Anyway, I' see how she flies tomorrow!

Finally got the header mounted. Welded on a couple extra bungs (front-left and rear-left) so I can tune front to rear lambda. Also welded on the centre stand stopper from the old header. Had it ceramic coated also. Question: Does the gen5 and gen8 have a larger exit diameter? cause mine arrived with a tube diameter larger than the OEM exhaust??? I had to chop the end off the OEM exhaust and weld it onto the new one, no biggie for me but I wonder how others with 6th gen's went or did mine get missed during fab I wonder? While I had it all apart I also build

Yeah, its not cheap though (not the black version I am getting) but it is a power house! yeah I need a second bike so I can "projectify" the other.

I am going to probably do a complete ECU swap with probably a ECU Master ECU. might be a while but having complete control will be nice. covering all the options of the RB for not a hell of a lot more. few things to work out of course.

through customs woohoo....howd the other Aussie recipients go with MyUS.com? i found them seemless and fuss free.

are we still waiting for a few people to pay the balance? I know I was a tad late (I had to muck about with paypal). Anybody know anything? To be clear, I am in zero hurry, just curious (and a tad excited maybe) Oh BTW a massive thanks to all they guys that made this happen. cheers!