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Old 09-01-2018, 01:31 PM   #25 (permalink)
Daschicken
EcoModding flying lizard
 
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Join Date: May 2012
Location: Georgia
Posts: 743

Cibbie - '88 Honda CBR 250R
Motorcycle
90 day: 48.49 mpg (US)

Rarity - '06 Honda Accord EX V6
Team Honda
90 day: 29.88 mpg (US)

Baby viff - '86 Honda VFR 400R
Motorcycle
90 day: 42.15 mpg (US)

Latios - '08 Suzuki SV650SF
Motorcycle
90 day: 64.56 mpg (US)

Mazda 3 - '14 Mazda 3 i Sport
90 day: 43.25 mpg (US)
Thanks: 618
Thanked 261 Times in 174 Posts
Quote:
Originally Posted by D.O.G. View Post
I fitted a vacuum gauge to my VT250C using a similar barb fitting.

I found the gauge needle bounced around too much to be read (because it's only picking up one cylinder I suppose).
Adding a flow controller (one way) to the line steadied the needle, but it probably messed with it's accuracy.

As far as usability goes, I found little difference between part throttle and WOT in normal riding, so it didn't really help.

Maybe the CBR's higher revs will help? With it's modified gearing, my VT (probably) seldom goes over 7500 rpm (no tacho).
I forgot about the flow restriction! My carb sync set already had included restrictors, I’ll have to figure out as way to restrict this one, maybe just a zip tie constricting the line?

Maybe the lack of excess power on your VT had something to do with the small changes in needle movement? Actually, my CBR only has 5 more horsepower, so maybe not. I will find out soon enough!

Also, there is an entry for a 1988 VT250C on gearingcommander.com, punch in your shift point mph and find out your rpms!
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Best trip in V6: 52.0
Best tank in V6: 46.0
Best tank in Mazda: 49.9
Best tank in CBR: 61.3
Best tank in SV: 83.9

Quote:
Originally Posted by MetroMPG View Post
You can lead a fashion-conscious horse to unusual-looking water...

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D.O.G. (09-02-2018)