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N600
02-06-2010, 05:21 PM
I'm building a 72 honda N600 [similar in size and shape to the old mini cooper]. The eng and drive will be placed behind the front seats, much like a sandbuggy. I am in the gathering parts stage, have the 06 Gsxr 1000 motor and looking at the Protodie or desertkarts center drive unit . Are there other brands out there besides those for drive unit axles and hubs? . What is the best way to to keep the chain tight? with idler gear or making the sprocket adj. back and forth? As you can imagine I have a thousand questions. This is a great site, You guys build some radical machines ! Hope to learn alot from you as I go along. thanks in advance. Raul. [smilie=dunno.gif]

Gene
02-06-2010, 08:09 PM
Welcome to MBN!

Chain tensioners are the bane of MC powered cars. Sounds like you are building a street machine and could use a differential so it can turn without "pushing".

There are several options for a differential including a modifed VW based setup that Nutz4Sand will be happy to throw up as the low cost solution. Making a cradle that provides some movement could solve the roller/sprocket tensioner problem.

If you have $$$ look into a Jeffco or Quaife differential. With these you get reverse - which is good.

Gotxqss
02-08-2010, 10:18 PM
Just yanked the motor on my 71 myself since it had some narly noises and leaked oil from everywhere. Dont know forsure if a rebuild is worth it. I love the idea that a busa motor puts out 5x the power. Maybe we should keep in touch. How are you keeping the front? Pulling axles and motor combo leave the rest? Dont know what im going to do. Id be happy with a solid axle with a sprocket and brake like a gokart. Irs and all that just seems complicated. Hmmm

standfast
02-08-2010, 10:43 PM
I would just transplant a FWD engine and transmission into the back of the car. Like a 2.4l Ecotec, Honda, or whatever. You don't need to worry about suspension travel so you can just use offset axles like in the car. Your drivetrain would end up just like a Toyota MR2's mid engine setup. I think you would end up with something that weighs maybe 150lbs more, have readily available parts and have something much more reliable. I know the idea of having a sky high revving bike engine is cool but I fear you will regret powering the car with a chain and losing reverse if you just do a drive spool. The other thing that will make the car a whole different animal is the torque that a car engine has to offer. If you are on any kind of budget this is the way I would go. If you have a big wallet you may be able to make something work with a shaft drive or a direct gear drive or morse chain drive that is oil bathed like the stuff Quaife makes but its gonna get costly.

ghct619
02-08-2010, 11:14 PM
:p[smilie=ecstatic.gi:

N600
10-01-2010, 05:59 AM
Project is coming right along, lots of custom fabrication and very time consuming details.
Got the axle/hubs in, the motor is mounted and working on the roll bar and shocks exc.
the original motor/transs is for sale [runs sweet] if you are interested in keeping it stock.

MRMAGIC
10-02-2010, 03:30 PM
get us some pictures sounds way cool. what kind of rearend or drive did you use

bngcustoms
10-05-2010, 01:23 PM
The center section from DesertKarts is no longer available.

N600
10-06-2010, 07:48 AM
Used the Protodie hubs and center section w/ 930 c/vs. Need some 14 1/2 inch axles, any ideas? I'll try to upload some pics soon.[smilie=jumping.gif]

Gotxqss
11-02-2010, 02:51 AM
Sent you a pm!!

Cant wait to see pics of this beast!!