Hello,
Long time miata owner and MT.net member. Parted out my previous turbo build and cbr1000rr swapped my car. Build breakdown and driving videos:


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I have an 08 cbr1000rr and always wondered what this would be like. I always thought it would feel kinda like a rotary having so much rpm to play with.

 

Yeah that's pretty slick, I've wanted a bike engine ever since the miatabusa project. I'd offer you my 3.90 diff but then saw your gear/speed chart with the 3.3.

 

I dig! Torqueless but a screamer! I lol'd when you stalled it with the audible "****!"

It looks like it pulls the weight pretty well, better than I thought, tbh. Nice work. I remember you from back in the day, welcome back!

 

What went wrong with the stock piston 3071 build to make you part it out and do this? This is sick but so was that...

 

I kinda explained it in that video but basically I just got bored of the turbo car and wanted to do something that would test my car building limits. Turbo setup was fast but with the internet, anyone can build a turbo miata at this point. I wanted to do something unique. ALSO, I've always wanted a sequential transmission, and could never afford a legit one

 

Hey man fair enough, definitely impressive, and sequential is very cool. I'm also working on a gocart with a cb900f engine that will have a similar shifter, but the clutch will be a motorcycle clutch lever on the shift lever. I had a hard enough time cobbling together my turbo miata. I also love my cbr1000rr so this is right up my ally - love it. Sorry for asking what's answered in the video I'm at work can't watch the vids till tonight.

 

new challenge, put the turbo miata motor in the cbr (jk)

 

Nice dude! You may have said in the video, but what is final wet weight? Bring that thing to Metro Cruise!

 

1550 lbs driving weight as it sits now. thats no driver

 

I just watched the build breakdown video, well done. I love that you came in here with the swap DONE, not theorizing and dreaming like most other swap threads. Big win.

I see that the biggest issue is the gearing, is there any way to fix that? Custom cut gear for 1st? I guess due to the gearing spread you'd need a whole gearset, or at least 1-3 or something.

How's it do power wise, have you raced anything? I'm guessing 160ish WHP and at 1500lbs should have a power to weight ratio similar to a ~230whp normal weight miata. Not slow, and it looks quick in the vids, and that gearbox/gearing must be excellent once the car is moving.

For reverse you could use a starter motor perhaps, though you'd definitely have to change the gearing. What did you have in mind?

 

well done! will watch tonight. 1550 (703kg) is light! some info in the below might be helpful? some kind of tailshaft motor for reverse?