looking for advise on my new motor build. need the pros and cons of both and why one over the other.ive tried the jetworks 4 mil and loved it .never tried a bigbore or other stock cylinder strokers .thanks in advance
stoke it or bigbore it?
- Thread starter rebelwalker
- Start date
- Location
- Pueblo, CO
I have a 4mm stroker crank to sell if you go that route... I say go for the stroker if your budget allows... in fact, go for the stroker w/ a big bore and get it all!!!
(I love horsepower)
(I love horsepower)
aqua
the taco
- Location
- Jefferson City, MO
never been on a stroker but have heard that cc's from a stroker do more than cc's from a big bore. i would say cost is comparable but with the stroker you will have higher pistons speeds and more of a sideways thrust on the pistons. stroker will wear quicker but then again will have more torque.
Rickster
Matakana Menace
- Location
- Bay of Plenty, NZ
Dare we ask how much?
- Location
- Pueblo, CO
$900 shipped. Its a 4mm RAD Billet crank. All new bearings, recently trued and welded. Previous owner said it had been installed in a set of cases but never ran. I was skeptical and sent it out for rebuild w/ Pro-Tec. They checked it all out and said it was essentially all new. They trued it up & sent it back, thats how it sits... ready to install.
Dirtybird
Ex*ta*ski
- Location
- St. Clair, MI
Some crazy guy I just got off the phone with said stroke it, not bore :sneaky:
C-Rock87
Water Junky
- Location
- Boise, Idaho
:smile:
ATS_Aaron
X-
- Location
- Shady Shores, TX
I did both. 760 cylinder bore .5mm over + a 5mm stroker crank.
828cc's
LOVE IT.
Aaron
828cc's
LOVE IT.
Aaron
Last edited:
CoreyLKN
LKN Freestyle Militia
- Location
- Lake norman, nc
In your sig your wifes SJ is 633 cc? How did you manage that? :biggthumpup:
#ZERO
Beach Bum
- Location
- Florida - U.S.A.
Also... I'm curious as to how he got a Kawasaki 750 cylinder to fit on a superjet engine? :thinking:
I guess he meant 760.
I guess he meant 760.
ATS_Aaron
X-
- Location
- Shady Shores, TX
That is the actual displacement of the Yamaha 650.
I edited my 750 into the correct 760. Sorry.
Aaron
who did the porting on it?
SUPERTUNE
Race Gas Rules
- Location
- Clearwater Fl.
Keep in mind build it together 5mm stroker w/ bigbore at the same time, as the porting isn't the same as a stock 68mm stroke. Strokers are ported different as to be adjusted for the additional stroke.