http://suzukisavage.com/cgi-bin/YaBB.pl?num=1120506946

Maybe. Depends on the details. Like, what stroke and how much $?
thanks,
-Armen

Why do you believe this engine will benefit from a longer stroke...isn't the piston speed already pretty high with the 94mm stroke?

What are you going to modify to allow for the longer stroke and keep the piston from hitting the head, crank or counterbalance shaft?

Dave wrote on 01/11/18 at 03:23:08:



When you build a stroker you also use a costume rode and piston it would be a package deal like a kit and know the Pistons beating speed isn't  too fast this bike only revs to Seven Grand I have done way bigger strokes and revèd them to 13000rpm and one of the benefits is there's no replacement for displacement I don't know what all the benefits will be yet but once I build one and Dyno I know it I will find out the benefits it will be a fun project

I love your love for torque, but as Dave pointed out, as stroke increases so does piston speed. Another issues include rod angularity, the acceleration/deceleration forces on the wrist pin, mid-stroke balance, primary and secondary shaking force.

I don't believe that the LS650 motor is under stroked. In fact, it has evolved from a 400cc engine where they increased stroke and bore to achieve a capacity of 650cc. There is opportunity (as proven) to increase the bore and compression ratio. The stoke is a more involved change and may not yield results that justify the efforts.

But by all means, have at it and keep us informed. Be prepared to go through several engines in the process of testing.

Gary_in_NJ wrote on 01/11/18 at 08:14:39:



This isn't my first engine build or engine modification I could have stayed stuck on my ZX14 which made 194 horse with a pipe but no I decided to put a turbo and nitrous on it and makeover 660 horse I've Done big stroker kits and all kinds Motors drag cars street cars motorcycles even Raptors I've got 12 mm over Strokes in them I know what is all entailed in doing the motor

Awesome. Yawn.

I think you've missed the point of the Savage.

I don't know ,while a longer stroke will increase torque , we have decent torque ,it's horsepower that's in short supply,  and the biggest bang for the buck is higher compression  and a better cam and we've already increased displacement with larger pistons . this has been done , where as the use of blowers and stroking may cause overheating problems , the estimated price you cite and the fact that installing would demand total disassembly of the motor doesn't "get my motor running" ,but good luck!