F4I Engine swap
For what it would cost it'd be cheaper to sell your F4i and buy a CBR 1000 RR. Anyway, no they are not interchangeable. Aside from the width they are a completely different style of engine transmission configuration. You'd never be able to line up the chain, even if you could mod the frame to hold the motor.
Well, my dream was creating the ultimate sleeper. I've been checking and I can't find turbo's for the F4I. How can I make my engine brutally fast without compromising the engine life expectancy. Any suggestions.
How can I make my engine brutally fast without compromising the engine life expectancy. Any suggestions.
sleeper? ITS A SPORTBIKE!! WTF is gonna out run it? A better rider on a 250 will outrun a 1k with a bad rider.
I think I will buy me a lambo, then build the **** out of it. Would hate for another lambo to out run me...
I think I will buy me a lambo, then build the **** out of it. Would hate for another lambo to out run me...

It may be far fetched but its definitely a cool idea... The only other options i could think would be to just buff up the internals.. pistons, cams, port & polish. stuff like that. Thats a pricey route tho.
You can get NOS fogger kits for the F4i. The problem with that is the short wheelbase.
Any of the inline 4 sportbikes are actually really hard to mod significantly. most stuff really doesn't add much horsepower. I've seen people swap GSX-R600 motors with GSX-R750 motors, even Kawi ZX-6R with ZX-6RR's but never CBR's. Have a look into some of the V-Twins (ducati, RC 51) there is all kinds of horsepower building toys for those.
The other option (if you have the cash, and can get it) is the HRC power-up kit. It will put your bike into the 120Hp range at the wheel. That is about 30HP better than stock. Again though you'd need a good performance shop or race team to do the install.
Another option is the freeing up of the existing horsepower through drive gearing, throttle shortening, weight saving etc
Good Luck!!!!!!!!!!
Any of the inline 4 sportbikes are actually really hard to mod significantly. most stuff really doesn't add much horsepower. I've seen people swap GSX-R600 motors with GSX-R750 motors, even Kawi ZX-6R with ZX-6RR's but never CBR's. Have a look into some of the V-Twins (ducati, RC 51) there is all kinds of horsepower building toys for those.
The other option (if you have the cash, and can get it) is the HRC power-up kit. It will put your bike into the 120Hp range at the wheel. That is about 30HP better than stock. Again though you'd need a good performance shop or race team to do the install.
Another option is the freeing up of the existing horsepower through drive gearing, throttle shortening, weight saving etc
Good Luck!!!!!!!!!!


