| Author | Message | ||
     Purpony |
Not sure if the owner is on badweb but i was at a car/bike show last night and saw this X1.... Had a dual harley aftermarket intake on it and a bottle of nitrous.... sorry for the crappy cell pics but the sun was to bright    he had the factory side covers cut and everything tucked in nice... havnt seen this done before and figured i would share. | ||
| Natexlh1000 |
I like the shiny side covers a lot. I wouldn't want to be within 1/8th a mile from that while it's running with that exhaust though! I ran mine with the stock headers just to see how loud it was without the Daytona Boss "muffler" Sure enough my muffler Does muffle it a little. But those two pipes coming out without even a collector? my ears hurt just looking at it! | ||
| Gixxer86g |
Very cool. | ||
| Dutch_x1 |
his neighbours must love him when leaves for a ride in the morning | ||
| X1_rider |
Looks like my 120ci FatBoy's intake. Dual Mikuni 42 carbs with dual intake runners.   | ||
| Natexlh1000 |
Oh yeah. I was thinking they were quicksilver carbs from the mid-90's I was wondering where he found TWO of those! So two 42mm throttle bodies being fed into the same little stock manifold? I'm seeing a bit of a bottleneck. | ||
| X1_rider |
I remember a setup had both carbs feeding into a common manifold, then splitting at the intake ports. Mine has separate runners, the outer carb feeds the rear cylinder and the inner one the front cylinder. | ||
| Lakes |
I don't like the look of the pipe's wrapped in heat wrap. but everyone to what they like. did not think a 42 mik could give a 120 enough air to rev? | ||
| X1_rider |
That's one 42 mik per cylinder (dual carb setup). It's a bit overcarbed, it doesn't run so good at low RPM (plus the short straight pipes make tuning a challenge). | ||
| Hybridmomentspass |
"So two 42mm throttle bodies being fed into the same little stock manifold? I'm seeing a bit of a bottleneck." What I was thinking Unless this motor is really beefed up inside and bored out, dont understand the need for two carbs on this motor.....even then, one will flow enough | ||
| Forerunner |
Just. Because. It's. Cool. Don't think I've ever seen a bad X1. Still looking for my grail... Nels | ||
| Daveswan |
 one carb per cylinder | ||
| Buellistic |
Back in the day around 1959/1960 a one Larry Schafer made up a similar set up for the IRON HEAD "SPORTSTERS" of the day ... It was one hell of a POWER BOOST for back in the day !!! | ||
| Natexlh1000 |
Wow. I was thinking the dual carb thing was a waste of money but looking at those intake runners makes me feel like it would be an actual upgrade. Another cool thing I would like to see is the old sportster trick of two front heads, each with its own carb. I would wager that it would look sweet on a Buell. P.S. I was looking for pictures of the two front heads and came across this: http://www.hot-dock.co.jp/HR4V/fg-eng/eng.htm SICK! SIIICK!! | ||
| Buellistic |
IMHO, 4 valve HEADS and CARBURETORS to each individual HEAD would TORQUE IT UP !!! | ||
| Jayvee |
That would be a packaging challenge. Maybe it would fit if you took two front heads, and rotated the back one 180 degrees; then there's plenty of room at least for the two carbs. | ||
| Hybridmomentspass |
could you not do the same with a larger carb? (vs two carbs, one each etc) | ||
| Lakes |
I Think 30 years back they used twin carbs with big motors, to get enough air in. but i watched my friend flow test a mik HSR42 it did not flow much more air than a CV40. if you put one HSr 42 on a manifold sharing two cylinders, each cylinder still gets the same flow, But there is somewhere else for the overlap pressure to go beside's the carb. when you indervidually carb each cyclinder with a mik 42 they still only get the same air as b4 but as indervidually carbed the overlap gets blown back through the carb so you get fuel stand off. | ||
| Buellistic |
You must get the intake length correct to use the intake wave to max. benefit !!! | ||
| Natexlh1000 |
Remember Feuling from the early 90's? He used to have four valve head kits with intake manifolds that had a big plenum like in a car. I guess it was an evolutionary dead end. | ||
| Lakes |
Did you ever have to build a motor that had those Fueling four valve heads & manifold? it was a very tricky job! nothing wrong with that manifold design, just working with it was time consuming & they used a single pushrod to open two valves, you had to adjust pushrod and also adjust the rocker at the valve stem. two valves per cylinder on Harleys works for me. |
