Author Topic: Hyway 660 066 pop up piston domed  (Read 763 times)

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Offline Cut4fun .

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Re: Hyway 660 066 pop up piston domed
« Reply #20 on: January 11, 2018, 08:13:15 am »
Will do.  Have 2-Farmertec PC, 1-Cross MMWS PC, 1-Raisman PC.  I like the Raisman PC the best of all.  Have the MMWS on the other 660 have to pull it back down didn't relieve the (Hyway little thicker skirts)piston enough it's hitting crank throws.  Any thoughts on which PC to use?  Used Hyway piston wCross MMWS cyl. Have 2 660 kit saws. 
Looks like Ebay seller is moving them.  He is in Tiawan probably buys them for $10.00 or less.
Hope my random posting is understandable. LOL It's late blame the Moon    shine.
Shep
  He is in Tiawan probably buys them for $10.00 or less.
Hope my random posting is understandable. LOL It's late blame the Moon    shine.
Shep

LOL @ blame the moon  :D ;) 

Look for it Sat.

I dont know all those cylinder or ever used them. I always used oem for 066 660. So just pick one and make sure same cylinder used for piston psi comparison. 

   
HL will be selling them in a few weeks since they have been brought to their attention.  So another week maybe and they should have some listed too.

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Offline dpjones

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Re: Hyway 660 066 pop up piston domed
« Reply #21 on: January 11, 2018, 01:06:32 pm »

Should you measure distance between crank and skirts on aftermarket or any  pistons?
This question sounds dumb to me but I don't know how to delete it, sorry bout that




Offline farmboy

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Re: Hyway 660 066 pop up piston domed
« Reply #22 on: January 12, 2018, 12:24:44 am »
Yes!! Farmertec piston AM 660 don't hit crank throws, Hyway piston hits ( thicker skirts).  Check w/cyl on after relieving skirt for clearance. Never had  a clearance problem with any other pistons.
Shep
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Offline dpjones

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Re: Hyway 660 066 pop up piston domed
« Reply #23 on: January 12, 2018, 10:35:32 am »
Thanks, I'll check from now on.
DJ

Offline Cut4fun .

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Re: Hyway 660 066 pop up piston domed
« Reply #24 on: January 15, 2018, 09:29:29 pm »
Guy in oz shows stock hyway and then pop up hyway psi numbers of new not broke in.

https://youtu.be/mYy59EYCdRs
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Offline Cut4fun .

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Re: Hyway 660 066 pop up piston domed
« Reply #25 on: January 16, 2018, 07:25:45 am »
So the video shows 20-25psi and quicker cut times with just a piston swap. Plus it is drop in nothing else. Not bad for just a piston swap.

Plus the times in this pic shows avg and gains.

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Offline Cut4fun .

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Re: Hyway 660 066 pop up piston domed
« Reply #26 on: January 17, 2018, 10:46:00 am »
Was it still in the mail box Shep?
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Offline farmboy

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Re: Hyway 660 066 pop up piston domed
« Reply #27 on: January 17, 2018, 10:50:50 pm »
Yep!  Now I don't have any excuse to take the cyl. off.  Got loaded up in shop last week.  Got to find time for play!!!!
Shep
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Offline Cut4fun

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Re: Hyway 660 066 pop up piston domed
« Reply #28 on: February 18, 2018, 09:50:04 am »
Yep!  Now I don't have any excuse to take the cyl. off.  Got loaded up in shop last week.  Got to find time for play!!!!
Shep

Thanks for measuring

Intake 34.60mm
Exhaust 34.61mm
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Offline dpjones

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Re: Hyway 660 066 pop up piston domed
« Reply #29 on: February 28, 2018, 09:20:50 am »
I was wondering how the pop up piston worked out.
DJ

Sorry, I just now saw the chart above after posting, mind problems
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