4mm Stroker

[51222]

hi

 

iv been thinking after installing t6 pipes, dual k&N filters, vito power head and v-force to upgrade my bike so what do u people think iv i go for a 4 mm stroker with wiseco pistons 66.00mm(2.00mm over bore) ?? will i be satisfied and have any done this type of boring or near it plz tell me what outputs have u got...and yes one more thing about the ignition kit well its not cheap so is it worth getting it installed in my shee...?

 

thanx

[PassionRE]

I wouldn't waste future bore options boring to 66mm unless its needed to clean up your existing bore. Little to no advantage in doing so on the +4 stroker motor. The +4 motor ported to match is such a huge power increase, so the extra bore size would just be a waste of your cylinders...Jim

[fast frankie]

are you using blaster piston or banshee depends on the rod lenght 110 blaster 115 banshee with a spacer plate

[97redshee]

my 4mm was done with the non blaster pistons and the builder custom cut the domes for the pistons.i dont run a spacer plate.the 4 mm gives better torque i made 43ftlbs and 77 rwhp.it runs a million times better than without the 4mm crank.

[Schizo]

Do you have to do some porting for a 4mm stroker longrod crank or can you just drop it in without modification? Also does the crank make more hp or does it just give more lowend torgue?

[H300F]

for the stroker to work properly you should atleast match the ports to the new stroke. to make it rip you should do more port work. you can run a spacer plate without doing any porting but from what i have heard it plain out sucks, you either have to much lowend or to much topend.

 

the crank can chug along in a high gear easily or start out or pull a gear higher then normal. along with some nice porting you will have a great setup. plenty of lowend to get you off the line or through the tight trails and screaming topend.

 

i had my cylinders setup by Jim at Passion Racing. he is the one who posted above, PassionRE. blue duece also went with Jim, along with some people with reg. crank port jobs, justintoxicated to name one. i really reccomend him, he has a lot of experience, he was working with the rz and rd bikes motors before the banshee even came out so he has tons of knowledge to provide.

 

later

[ScreaminShee01]

run those weisco pistons... 795 i think they are called no need for a spacer, theyre specially made for strokers

[H300F]

mine has 795 pistons as well as a decking plate (spacer) and porting. mine is a longrod stroker. pistons are for the longrods, spacer and porting for the extra stroke.

[Oilsmoke]

One of the benfits of a decking plate is it raises all your ports. the plate Noss makes is like a thick gasket and has the same surface to seal as a stock motor.

and if you read Blue duce review of his stroker than I want that same motor in my shee. It's PLanned too. I starting to save for it.

[Blue Duece]

i really reccomend him, he has a lot of experience, he was working with the rz and rd bikes motors before the banshee even came out so he has tons of knowledge to provide.

 

ill second that, Jim really does know his shit..and is a great guy to work with...two thumbs way the hell up for Passion Racing Engines......