Flapdoodle
Member
As a teen in the 60's I built my own Wal Philips fuel injector for an Allstate 50cc moped. I did not have a chance to test it completely before the Viet Nam war got hold of me, but it did have gobs of low end torque. When I returned from Nam, my bike and two spare engines were gone. 
It was a two barrel design fabricated from hobby brass, and all-thread rod with the small parts machined using a Unimat 3" hobby lathe. Sounds like a real challenge, but was not all that hard.
For those who have not heard of the Wal Philips injector, see the two links below:
http://en.wikipedia.org/wiki/Wal_Phillips
http://victorylibrary.com/brit/WP-c.htm
I took the liberty of massaging the photos on the victory site that were almost impossible to see and uploaded them in a zipped file here:
http://flapdoodle.250free.com/80cc/WP.zip
Today, we have a host of materials that were not available then, such as J-B Weld that would make a prototype for an HT a lot easier. The advantages for us would be the lack of a float, and almost infinite adjust ability.
I am not certain I want to build another one, but at least will make a few drawings and calculations that I can post here if anyone is interested.
It was a two barrel design fabricated from hobby brass, and all-thread rod with the small parts machined using a Unimat 3" hobby lathe. Sounds like a real challenge, but was not all that hard.
For those who have not heard of the Wal Philips injector, see the two links below:
http://en.wikipedia.org/wiki/Wal_Phillips
http://victorylibrary.com/brit/WP-c.htm
I took the liberty of massaging the photos on the victory site that were almost impossible to see and uploaded them in a zipped file here:
http://flapdoodle.250free.com/80cc/WP.zip
Today, we have a host of materials that were not available then, such as J-B Weld that would make a prototype for an HT a lot easier. The advantages for us would be the lack of a float, and almost infinite adjust ability.
I am not certain I want to build another one, but at least will make a few drawings and calculations that I can post here if anyone is interested.
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