Thread: 400 Hp Micro Truck Project

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Originally Posted by rspears

I got curious and played with some numbers. Those 165R45x15's are about 22.4" OD, right? If so that means you're running something around a 3.23 rear gear? Watching the video I kept waiting for a shift, but then came back to "Oh yeah, it's direct drive!!"

It's a 3.07 rear gear, Roger. He mentioned it on the video.

Originally Posted by Henry Rifle

It's a 3.07 rear gear, Roger. He mentioned it on the video.

Sorry, I missed that detail...

Originally Posted by glennsexton

I watched the video as well - really innovative! Tell me again how you back this us without parking on a hill??

I used a starter/generator from a gas golf cart. It is a belt drive to the rear axle yoke. I originally went this route because there was not enough room for a traditional alternator (to keep the battery charged) and the starter/gen would serve to charge and reverse. After the install I ran across a nice mini alternator that fit the tight confines, and am now using it. I have not wired up the start/gen yet, but have used a similar setup in the past and it worked well enough. I may keep the starter/gen but will likely ultimately switch to an automotive mini starter with a small flywheel on the axle for a more positive engagement. I have seen this setup on bike powered mini coopers and it seems to work well.







It's Ben Modified.

I have had a few requests for some photos of the shop/projects. If you are interested, here is a link.

https://www.youtube.com/watch?v=fw_oqIIHn6Y

My YouTube Home Page:
https://www.youtube.com/user/TheGreenVW?feature=mhee

Shop motor coming out and crate motor going in…..finally!

The motor is out. I need to finish up a couple of things while it is out. Also need to install the manual trans flywheel on the crate motor as well as clearance and install the new water pump.



Took a good shot of the one speed also.



The Build Videos!
https://www.youtube.com/user/TheGreenVW/playlists

Now with 1800% more horsepower than stock!



http://www.BenModified.com

SAH-WEET! Any chance you could get a pic of the original (po I dare say it?) powerplant???

Just curious what it started with..

Originally Posted by 34_40

SAH-WEET! Any chance you could get a pic of the original (po I dare say it?) powerplant???

Just curious what it started with..

Absolutely! I will post one tomorrow

Thank You!

Originally Posted by 34_40

SAH-WEET! Any chance you could get a pic of the original (po I dare say it?) powerplant???

Just curious what it started with..

Here it is. 358cc two stroke two cylinder

Thanks Again! I haven't seen any of these locally.. there is a project here that could use something like that..

I'll have to look around more! LOL..

Progress on the crate motor install. Since I was able to find an alternator that fits the confines of the Hijet, I have decided to remove the starter/generator and instead use the starter and flywheel from a late model Taurus for an electric reverse gear. These are cheap and plentiful and should provide a more positive reverse engagement with no belt to wear out. The starter will go here



I removed the 1 speed yoke to fit on a flange to which the flywheel will attach



Making the flange from some 1/4" plate steel



Turning it down on the lathe





I will cut out the center section from this V8 flywheel



Next, I will machine a bushing to align the bores of the V8 and Taurus flywheels and then weld the V8 center section to the Taurus flywheel, drill out the mounting holes and open up the center bore. When finished, the Taurus flywheel will bolt up to the flange which will be welded to output yoke



Progress so far



My Builds:
https://www.youtube.com/user/TheGreenVW/playlists

Nice work.

Interesting concept to gain reverse. I'm sure we'll all be curious to see it work.