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12-12-2011, 02:49 AM | #1 |
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Join Date: Dec 2011
Location: Boscobel, Wi
Posts: 14
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37 Flathead V8 bike project
Hi, new guy to this forum, Always loved flatties and bikes so this project came together, here is a link to the build photos....
http://www.vinmoto.org/gallery/v/Vin...sBill/1937+v8/ 11-0914-TWALDX-11.JPG |
12-12-2011, 03:00 AM | #2 |
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Location: SF Bay Area
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Re: 37 Flathead V8 bike project
Bill, that's a sweet ride!
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12-12-2011, 10:32 AM | #3 |
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Join Date: Oct 2010
Location: North Pole, Alaska
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Re: 37 Flathead V8 bike project
That puts the Boss Hog to shame! I would have loved to have seen one of those at Sturgis, I'm sure it would draw the biggest crowd there.
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12-12-2011, 10:42 AM | #4 |
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Join Date: May 2010
Location: Chester Vt
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Re: 37 Flathead V8 bike project
Very interesting torqure converter, just love things like that.
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12-12-2011, 10:43 AM | #5 |
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Join Date: May 2010
Location: Sf bay area
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Re: 37 Flathead V8 bike project
wicked lookin bike love those flat powered!!
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12-12-2011, 11:20 AM | #6 |
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Location: Wash.
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Re: 37 Flathead V8 bike project
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Way to go Bill!!! |
12-12-2011, 11:31 AM | #7 |
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Join Date: May 2010
Location: Santee, California
Posts: 3,505
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Re: 37 Flathead V8 bike project
Amazing engineering! Where there is the will there is the way. Especially with your talent.
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12-12-2011, 11:40 AM | #8 |
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Join Date: May 2010
Location: pittsburgh pa
Posts: 138
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Re: 37 Flathead V8 bike project
Very nice, how about more info on torque converter.
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12-12-2011, 12:52 PM | #9 |
Junior Member
Join Date: Aug 2010
Location: roseville calif
Posts: 5
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Re: 37 Flathead V8 bike project
Wow thats using your head for something other than a hat rack!! Nice job!
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12-12-2011, 01:25 PM | #10 |
Junior Member
Join Date: Dec 2011
Location: Boscobel, Wi
Posts: 14
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Re: 37 Flathead V8 bike project
Gee, Thanks guys, i build cycles to ride, not really to show or sell. I had always dreamed of having an Indian 4, but realized i'm getting older, and the chances of that ever coming about were slim. The flathead V8 was the only substitute. Most of the ones i saw online used the extremely hard to find V8 60s, or were monsterously misproportioned. They also all were using a single speed right angle gearbox and stock clutch, and were said to be a bit impractical for a daily rider, and a handful to start out, especially uphill. My soulution was to use the torque convertor and front cover/pump from a Dodge omni. I used a 12" saw blade to adapt it to the V8 flywheel,
utilizing the original pressure plate bolt holes. Also used the Dodge's front clutch after cutting the planetary hub off of it. I shortened the drive shell and welded it to a stub pto shaft, driving a short chain turning a goldwing 1500 shaft drive rear end. The case was made from 9"x1/4" steel tube counterbored for the pump/cover and rear bearing cover. Using cardboard templates, i laid out the steel bellhousing and welded it up after truing. I routed the pump output to the converter with a relief valve from a yamaha, and ran pressure to the clutch via an external ball valve ,allowing for neutral. The stall speed matches the V8 well, smooth solid take offs, and acceleration up to 95+. The old flatty is being fed by a side-draft S&S Super G, and runs smooth and strong. It has proven to be a hassle free daily rider, and a true joy to ride! |
12-12-2011, 02:06 PM | #11 |
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Join Date: Oct 2010
Location: Orem, Utah
Posts: 5,762
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Re: 37 Flathead V8 bike project
I'm impressed! I am very impressed! You are some grease monkey. I'd love to see it in person, see you ride it and hear it in real life. You are amazing!
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12-12-2011, 04:38 PM | #12 |
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Join Date: May 2010
Location: Sydney, Australia
Posts: 949
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Re: 37 Flathead V8 bike project
I'm very impressed, engineering and imagination, congratulations on a superb effort.
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06-07-2012, 09:37 PM | #13 |
Junior Member
Join Date: Dec 2011
Location: Boscobel, Wi
Posts: 14
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Re: 37 Flathead V8 bike project
Since the last time i posted , have upgraded to a lock-up style converter and built a gear drive to replace the chain from trans to driveshaft and committed to a color....Also added a GM hei distributor as an ignition trigger, driven from the crank by a small timing belt, as this makes adjusting the timing a breeze, with centrifigal advance as well as the vacuum advance. The timing cover distributor still is used for spark distribution an the points are still there as a backup if the hei module fails.....
Last edited by Boscobill; 06-07-2012 at 09:48 PM. |
06-08-2012, 11:07 AM | #14 |
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Join Date: May 2010
Posts: 1,770
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Re: 37 Flathead V8 bike project
boscobill you are a very taltened man
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06-08-2012, 11:52 AM | #15 |
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Join Date: May 2010
Location: Williamsburg, Virginia
Posts: 2,654
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Re: 37 Flathead V8 bike project
This bike is really sweet - have you posted this over on the HAMB, BTW? I think the folks there would get a real kick out of this build .... way to go!
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06-08-2012, 12:28 PM | #16 |
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Join Date: May 2010
Location: Atlanta, Michigan
Posts: 236
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Re: 37 Flathead V8 bike project
Very nice! Something like this really interests me. Would love to see it someday and meet you.
Butch |
06-08-2012, 01:40 PM | #17 |
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Join Date: Mar 2012
Location: Near Dallas
Posts: 387
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Re: 37 Flathead V8 bike project
Hats off to Boscobel Bill and the Flathead V8 Bike project. it deserves a place of honor among the other great bikes to come out of Wisconsin, or anywhere else for that matter.
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06-08-2012, 05:24 PM | #18 |
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Join Date: May 2010
Location: Napier, New Zealand
Posts: 2,001
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Re: 37 Flathead V8 bike project
Wow! Amazing. That's the best flattie bike I've ever seen. How does it handle and steer?
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06-08-2012, 05:39 PM | #19 |
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Join Date: Oct 2010
Location: Chattanooga, TN
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Re: 37 Flathead V8 bike project
Nice!!! I like it!
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06-08-2012, 06:26 PM | #20 |
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Location: nw SanAntonio, TX
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Re: 37 Flathead V8 bike project
Sent you a PM as part of the great promote v-8 60 project. Lou
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