sv600 - SV650.org

21-11-06, 05:07 PM

does anyone know if you can sleeve down a 650 engine to 600 easily? (and cheaply!)

rictus01 · 21-11-06, 05:09 PM

I very much doubt it, although there is a 400 jap market variant.

Cheers Mark.

northwind · 21-11-06, 05:20 PM

There's a few guys in the states who've done it... Not sure how, exactly. Short stroke crank config out of a 400, bored out, maybe...

What a helpful post this was. I'm glad I wrote it

21-11-06, 05:20 PM

can i ask why you would want to do this the only reason i can think of is because of tax, but IMO its really not worth it!!!

21-11-06, 05:28 PM

Quote:

Originally Posted by Jimmy2Feet

can i ask why you would want to do this the only reason i can think of is because of tax, but IMO its really not worth it!!!

I'm thinking racing regs but it'd be way down on power compared to an in-line 4.

21-11-06, 06:52 PM

yeah for racing - but in a car (well a tiny one like a formula ford). Regs so 600cc max, but having the extra torque over a il4 would make a huge difference as the course is pretty tight. only other 600 twin i can think of is the monsters engine, but thats pretty weak!

21-11-06, 06:55 PM

I think you'll get a better top speed with a IL4. Thundercat engine was quite grunty low down.

21-11-06, 07:10 PM

yeah, got an r6 engine at the mo. But don't use 4-6th gear at all. So lots of grunt would be better than top speed. (and of course the sv engine has no limits

)

21-11-06, 07:52 PM

I think an R6 engine produces more torque than the SV lump all the way through the range.

Have you thought about changing the gearing?

21-11-06, 08:15 PM

Yeah, sounds like a gearing change is what you need. Then you can use the extra power of the IL.

21-11-06, 05:07 PM	#1
gettin2dizzy Guest Posts: n/a	sv600 does anyone know if you can sleeve down a 650 engine to 600 easily? (and cheaply!)

21-11-06, 05:09 PM	#2
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	I very much doubt it, although there is a 400 jap market variant. Cheers Mark. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

21-11-06, 05:20 PM	#3
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	There's a few guys in the states who've done it... Not sure how, exactly. Short stroke crank config out of a 400, bored out, maybe... What a helpful post this was. I'm glad I wrote it __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"

21-11-06, 05:20 PM	#4
Jimmy2Feet Guest Posts: n/a	can i ask why you would want to do this the only reason i can think of is because of tax, but IMO its really not worth it!!!

21-11-06, 06:52 PM	#6
gettin2dizzy Guest Posts: n/a	yeah for racing - but in a car (well a tiny one like a formula ford). Regs so 600cc max, but having the extra torque over a il4 would make a huge difference as the course is pretty tight. only other 600 twin i can think of is the monsters engine, but thats pretty weak!

21-11-06, 06:55 PM	#7
Razor Guest Posts: n/a	I think you'll get a better top speed with a IL4. Thundercat engine was quite grunty low down.

21-11-06, 07:10 PM	#8
gettin2dizzy Guest Posts: n/a	yeah, got an r6 engine at the mo. But don't use 4-6th gear at all. So lots of grunt would be better than top speed. (and of course the sv engine has no limits )

21-11-06, 07:52 PM	#9
A-jay Guest Posts: n/a	I think an R6 engine produces more torque than the SV lump all the way through the range. Have you thought about changing the gearing?

21-11-06, 08:15 PM	#10
jonboy99 Guest Posts: n/a	Yeah, sounds like a gearing change is what you need. Then you can use the extra power of the IL.