Question about stroker crank
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Question about stroker crank
I have a zenoah m-5 and purchased a stroker crank from gizmo motors and he doesn't say anything about using it in a modded cylinder and want to see if anyone else has put one in a modded cylinder to make sure there is enough clearance at the top of the jug. Dockman I think you said you put one in your modded cylinder, did you have to do anything to yours or have any issues? I might call bruce tomorrow at gizmo and check with him to be sure. Hibby
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RE: Question about stroker crank
I would have to look at my notes to see what thickness of gasket I used. I did have to use a thicker one I know that. I'll go look now and post up.
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RE: Question about stroker crank
Pretty basic math gives you parameters involved ... 1 mm = @ .040" which divided between 180 degrees of rotation is .020" lower and .020" higher than a stock crank moves, So looking at typical squish clearance a stock Zenoah has of @ .034" ... take away .020" at TDC leaves .014"
Now IF that is actually what you have ? it needs to be accurately measured.
For those tuning at more precise values the height of all ports and there "Degree" value need to be adjusted for the tuners perceived ideal value.
Or ... in novice terms, if it fits, don't hit and runs better/faster etc ... great
Now IF that is actually what you have ? it needs to be accurately measured.
For those tuning at more precise values the height of all ports and there "Degree" value need to be adjusted for the tuners perceived ideal value.
Or ... in novice terms, if it fits, don't hit and runs better/faster etc ... great
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RE: Question about stroker crank
Thanks for the replys guys, I think tony's m-5 jug is shaved . 010 I will have to make sure. If that is the case that would put my top dead center at .004 . (stock jug squish clearance .034 minus .020 at top dead ctr leaves .014 clearance minus .010 for m-5 jug shaved leaves .004 clearance) is that correct scott? If I have to use my stock jug with the stroker crank and not my m-5 jug I am wondering if it is even worth putting the stoker crank in. Hope Im not sounding stupid but trying tio learn some of these things. Thanks Hibby
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RE: Question about stroker crank
Did you take these measurements with a dial indicator thew the spark plug hole. if not you will need to. I think scott was just giving you what the numbers that are suppose to be.
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RE: Question about stroker crank
ORIGINAL: jtdesign
Did you take these measurements with a dial indicator thew the spark plug hole. if not you will need to. I think scott was just giving you what the numbers that are suppose to be.
Did you take these measurements with a dial indicator thew the spark plug hole. if not you will need to. I think scott was just giving you what the numbers that are suppose to be.
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RE: Question about stroker crank
dockman, I talked to bruce at gizmo and he said I would have to have the base of the jug turned down or the ring is going to go to far down past intake, which Im confused now, because whats the purpose of the thicker gasket then. Give me a call if you get a chance ph 704-633-6039 if you can't get me leave me a message and I will call you. thanks hibby
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RE: Question about stroker crank
ORIGINAL: hibby
dockman, I talked to bruce at gizmo and he said I would have to have the base of the jug turned down or the ring is going to go to far down past intake, which Im confused now, because whats the purpose of the thicker gasket then. Give me a call if you get a chance ph 704-633-6039 if you can't get me leave me a message and I will call you. thanks hibby
dockman, I talked to bruce at gizmo and he said I would have to have the base of the jug turned down or the ring is going to go to far down past intake, which Im confused now, because whats the purpose of the thicker gasket then. Give me a call if you get a chance ph 704-633-6039 if you can't get me leave me a message and I will call you. thanks hibby
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RE: Question about stroker crank
Me and a friend are going to work on it tonight and I will post what we find out. Tony at whh said that he doesn't touch the intake on the m-5 so it shouldn't be raised.
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RE: Question about stroker crank
Dockman did you have to do any porting with your stroker crank? Are you using that top end rcmk eco cylinder kit? hibby