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xs650 dragbike
- Thread starter cowboy3669
- Start date
cowboy3669
XS650 Addict
cowboy3669
XS650 Addict
Primitive
XS650 Member
thats cool
whats it run?
whats it run?
cowboy3669
XS650 Addict
the best has been 10.33 @ 133
That is awesome! How much boost? What are you getting for horsepower??
That's an interesting setup with the carb way out there. I never thought you'd get enough fuel under boost. Is it better to have such a long intake?
cowboy3669
XS650 Addict
Thank you. by the gauge that's on the bike about 14# of boost.i estimate about 100+ hp.
there is an aux. pump that sends additional fuel to the carb under full throttle. don't know if it's any better to have a long intake but i didn't have room to put the turbo behind the engine like some of most draw-thru systems do. so out front it went.seems to work alright for this set up.
there is an aux. pump that sends additional fuel to the carb under full throttle. don't know if it's any better to have a long intake but i didn't have room to put the turbo behind the engine like some of most draw-thru systems do. so out front it went.seems to work alright for this set up.
Yamaha_chop
Fabricator Extraordinare
Very cool bike man, love the innovations. Pretty crazy running a 10.3 on an XS!
shreveport1
XS650 Addict
That is some Awesome engineering you put into that bike!! 
smokenjoep01
Motorcycle Freak
Sweet!!!!!!
Sundie
Jabroni
Actually, it *is* better with a turbo setup to have a long intake, especially hanging out in the air like that. For every foot, of piping, i think it's something like a 2% temperature drop. Since you're running without an intercooler (which would actually be really easy to ghetto in there - just replace a piece of that nice straight intake with an ice bucket), you need all you can get. Every 10 degrees is a 1 degree of timing you can eke out?
Do i see a NOS bottle stuck in the back?
Tech7
XS650 Junkie
I'd love to hear it run!
All these old threads coming back from the dead...
Sundie, when I mentioned the long intake, I was referring to the carb being so far away and the effects of that.
I think he did say something about having nitrous oxide injection, maybe in another thread.
Sundie, when I mentioned the long intake, I was referring to the carb being so far away and the effects of that.
I think he did say something about having nitrous oxide injection, maybe in another thread.
Sundie
Jabroni
necroposting FTW!travis said:
I didn't mean engine cooling - i meant intake charge cooling.
TwoJugs
Excess XS
I have a drag bike sitting in the yard waiting for a chance to live again. I thought mine was a bit radical but yours wrote the book. This was picked up from the widow of a past racer that built it in the late 70s. It was run on alcohol. Air shifter, total loss MSD ignition. I have the wheelie bars for it, start cart and boxes of pistons, cams, cranks, rods, valves and other performance items that he had in stock. Too bad that every bit of chrome is shot from the weather and storage but I plan on starting it someday and putting fresh rubber on it if it sounds like it wants to go. I wonder what times it was turning?
cowboy3669
XS650 Addict
let's see if this works.
