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View Full Version : 250R Duncan Pipe vs. ESR



machwon
12-11-2005, 07:14 PM
1988 250r (257cc) Duncan type 46 pipe vs. an ESR 5 pipe.

Mobile Dyno
12-12-2005, 04:03 AM
NIce! That ESR pulls alot more on top than the Fatboy. Did you do A/F on these tests?

machwon
12-12-2005, 04:55 PM
No I didn't do any A/F.

wilkin250r
12-15-2005, 05:53 PM
What is the "type 46". I only see a type 6, midrange, Eliminator, and hi-rev on their website.

machwon
12-15-2005, 07:27 PM
It's an old hand made pipe, back from 1991. The replacement for this pipe was the eliminator as they couldn't get the manufacturer to make enough.

wilkin250r
12-16-2005, 09:48 AM
Originally posted by machwon
The replacement for this pipe was the eliminator

Well $h!t, I'm running the eliminator. Looks like I'll be switching pipes.

atc86r
01-19-2006, 03:43 PM
I saw a video of some tuning with a a/f gizmo. had yellow green and red light bar to tell if the mixture was on. anyone know what that was? Sorry to jump into thread but have been wondering who made it.

wilkin250r
01-24-2006, 01:47 PM
Originally posted by atc86r
I saw a video of some tuning with a a/f gizmo. had yellow green and red light bar to tell if the mixture was on. anyone know what that was? Sorry to jump into thread but have been wondering who made it.

Sounds like http://www.jet4power.com

khj
01-25-2006, 09:15 PM
does anyone know what O2 % the jet 4 power calls max. power ?

atc86r
01-30-2006, 04:53 PM
yep thats it . Thanks wilken