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What to do....

  • Motorcycle Engine Swap, more money, takes longer, more fun

    Votes: 16 42%
  • Get the car running, keep it original, less time, cheaper

    Votes: 18 47%
  • Sell the car, buy one thats already running, slightly more money, quick and easy.

    Votes: 1 2.6%
  • other

    Votes: 3 7.9%
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1970 Honda N600 Micro Car Motor Swap Build!

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49K views 76 replies 22 participants last post by  awebb  
#1 · (Edited)
Ok, so I am at somewhat of a crossroads. I have a 1970 Honda N600 that I am trying to figure out what to do with. Help me figure this out!

EDIT: picture attached
 

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#2 ·
Voted, but Im an old guy who likes to keep nostalgic cars orginal. Of course, that carbon fibered N600 posted iin your other thread WAS pretty sick, Id say keep this one original due to the fact that its pretty much complete already.
 
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#4 ·
motorcycle engine would be fun, k swap would be really fun though.

i like the idea of something fast that looks all original.

if your going to put a bunch of time into the whole car you might as well put a little bit more into a engine.
 
#5 ·
No D, B, K, etc...swap will fit in the N600 chassis. The chassis is only 4 feet wide, if you somehow squeezed it in the axles would be just two joints.

I'm keeping my eye open for a N600 to hopefully do a frame up restoration, these things are awesome.

Some other motorcycle swaps I've seen require a lot of cutting/welding and to be honest if the car is in good shape why cut it up? I've seen some mods done to the original engine to squeeze out a little more power (mostly carb/exhaust), not a lot but makes it more enjoyable to drive.
 
#6 ·
ya, no car engine will fit, and honestly, i think the weight would be too heavy for this little car. mid engine d16 would be perfect.

You all have valid points. Keeping it original would be fun in the sense that I’m using the car as it was designed and keeping the classic car alive. Although this does have its drawbacks as 1) the car will be slow 2) engine/tranny parts are VERY hard to come by. 3) motor/tranny replacements parts are expensive.

Throwing in a modern 600cc or even a 1000cc engine would be way more fun to drive and way more fun to look at and share. Yes the chassis WILL need cutting and yes the car is actually pretty clean, but I would not want to modify a chassis that was beat up. Clean N600 with a motorcycle motor= clean project car, beat up N600 with a motorcycle motor=beat up project car. The only drawbacks for me would be money. It will cost several thousand to have this conversion done. Although a pro is the fact that maintenance will be cheap and engine parts are readily available.

Buying another car that’s running would somewhat be cheating, although then I won’t have to worry about the motor and I can focus on restoring the interior/exterior. Although to be honest, im not really in this for a restoration, I just want a fun, cool little car, that’s different than anything out there and at the same time fun to drive. The aww factor once I get on the trottle and hit 15k rpms. Lol.

I think I just answered my own question.
 
#8 ·
hm. i would be in that same crossroads.

but you kinda answered your own question.

if i don't mind it being slow, i would keep the engine. but if i want fun, i would swap a bike engine there.

i kinda like the 2nd alternative.
 
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#13 ·
i've pretty much decided i want to do the motorcycle engine. long term , at least for me, i think i would have way more fun, and a unique car in a unique car world. Which is very appealing to me.

Now, my fabricator and i were talking and decided that a carbureted motor would be easiest. So whats the highest HP carb'd 1000cc bike? I was looking into it and it seems the old carb'd R1 motors are pretty decent at 150hp. Would it be weird to put a yamaha into this honda? lol. Yamahonda!
 
#24 ·
I looked into it, they make 128 compared to the 150 from an r1 and they cost around the same. Id much rather go R1 in that case.

only issue i see is how the diff is set up on the cars with bike engines. this one is from the metrognome.

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My fabricator will figure that out. Theres actually a guy that took the diff from a N600 and matted it to a sprocket. He’s got a handful of helpful videos too.

Check it out… Bike Engine Honda AN 600 build - Honda-Tech

Also the second thread of his… Budget Motorcycle powered Honda N600 - Honda-Tech

I say throw a 08' or newer Hayabusa engine in there and be happy it will be quick and light decent mpg. That is if your 100% on a swap but me myself. I would do a restoration that car is clean and isn't going to take much to restore.

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Hayabusa’s are too expensive, and too much power for whats is needed. I’m about 80% set on the swap. 20% of me wants to just save my money and get it running. But then what? Jut look cool and be super slow? Boring. “Wow! Look at that cool car” or “ WOW, look at that car, AND it has a liter bike engine in it?!” I prefer the latter.

what about a wankel and RWD? they not very big,come carbed, and powerfull for there size... like a 13b FC RX7 engine. expensive tho
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That would be cool, but since I don’t fabricate, it would cost a lot more.

Oh man, the 13b would be dope.
I wish!
 
#21 ·
I say throw a 08' or newer Hayabusa engine in there and be happy it will be quick and light decent mpg. That is if your 100% on a swap but me myself. I would do a restoration that car is clean and isn't going to take much to restore.

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#25 ·
#27 ·
Magical spinning Doritos do not belong in cars...
Magical spinning Doritos do not belong in
Magical spinning Doritos do not belong
Magical spinning Doritos do not
Magical spinning Doritos do
Magical spinning Doritos
Magical Doritos
spinning Doritos
That is all
 
#28 ·
I agree the busa engine is expensive but they are super fast.

I would keep the stock engine in there and throw a small turbo at it and call it done man!!
 
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