TOPIC:

I have a 1978 kz650 shoved into a 660 Raptor frame that is stretched and lowered, this thing will fly, but now im running into a lot of people running r1 and r6 bikes so it time to find a turbo, what kinda power do they make with the turbo 650's,and do they make kits or is it alot of fab work?

I don't think they make a turbo kit for the 650. You can get 100hp out of a 650 motor though. Do a search in here for 100hp 650. There was a thread about a year ago covering what it takes to do the build.

kzquadguy wrote:

I have a 1978 kz650 shoved into a 660 Raptor frame that is stretched and lowered, this thing will fly, but now im running into a lot of people running r1 and r6 bikes so it time to find a turbo, what kinda power do they make with the turbo 650's,and do they make kits or is it alot of fab work?

They did make a kit for the KZ650/750.It's a draw thru like the KZ1000's.Power depends on how much boost along with the condition and state of tune of said engine.I have one that I just pulled off of my sr.Tried to run it on E-85 and was having trouble getting the jetting right,ran good on gas though.Used a 36mm Keihin round slide carb and my engine needs rings which could be the problem.I'll take some pics today in case you are interested.

i cut the motorcycle frame and welded it in the raptor frame, now what i need to know is does a 1000 bolt into a 650 frame or are the cases bigger?

Cool build, but you'll never get close to R1 power reliably with that 650 and you'll spend huge dollars on a KZ900 or 1000 engine to make it as fast as an R1. Maybe start looking for your own late model sport bike engine??