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The Mad Scientist
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DMR cylinder head (stock cylinder)
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Topic: DMR cylinder head (stock cylinder) (Read 1629 times)
croat1
Global Moderator
Hero Member
Posts: 2939
Total likes: 611
DMR cylinder head (stock cylinder)
«
on:
April 28, 2022, 06:19:30 PM »
DMR cylinder head……
«
Last Edit: July 07, 2022, 01:43:04 PM by croat1
»
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(1 person liked this)
croat1
Global Moderator
Hero Member
Posts: 2939
Total likes: 611
Re: DMR cylinder head
«
Reply #1 on:
May 06, 2022, 08:37:48 PM »
With or without headstay
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Jordanscott888
Newbie
Posts: 28
Total likes: 15
Re: DMR cylinder head
«
Reply #2 on:
May 08, 2022, 11:45:46 PM »
What FB group does he post in? I never see him on owners for life
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croat1
Global Moderator
Hero Member
Posts: 2939
Total likes: 611
Re: DMR cylinder head
«
Reply #3 on:
May 09, 2022, 04:02:18 AM »
Jordan, this is the page:
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Jordanscott888
Newbie
Posts: 28
Total likes: 15
Re: DMR cylinder head
«
Reply #4 on:
May 09, 2022, 10:38:06 AM »
Thank you! Interested to see more info on that head.
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croat1
Global Moderator
Hero Member
Posts: 2939
Total likes: 611
Re: DMR cylinder head
«
Reply #5 on:
May 11, 2022, 05:40:57 PM »
Modquad branded
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Jordanscott888
Newbie
Posts: 28
Total likes: 15
Re: DMR cylinder head
«
Reply #6 on:
May 11, 2022, 11:14:48 PM »
I’m curious what the improvements are that he was alluding to. He never specified.
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atvmxr
Sr. Member
Posts: 491
Total likes: 79
Re: DMR cylinder head
«
Reply #7 on:
May 13, 2022, 10:12:36 AM »
Quote from: Jordanscott888 on May 11, 2022, 11:14:48 PM
I’m curious what the improvements are that he was alluding to. He never specified.
I think he said something about these use regular head gaskets. guess the oring heads dont seal real well ? Otherwise I can only imagine minimal gains with a change in the head chamber geometry
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Bunch of race quads that run on premix
broken1
Global Moderator
Hero Member
Posts: 1252
Total likes: 150
Re: DMR cylinder head
«
Reply #8 on:
May 13, 2022, 10:08:53 PM »
The benefit of using a head gasket in some of the 2 piece head designs is the coolant flow is focused toward the exhaust side like on an OEM head. I have a pro design cool head that uses a gasket.
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ajbuilder250r
Newbie
Posts: 17
Total likes: 3
Re: DMR cylinder head
«
Reply #9 on:
May 14, 2022, 10:54:56 PM »
It uses a head gasket. I just installed this head on my bike this afternoon
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The norm
Global Moderator
Hero Member
Posts: 1251
Total likes: 302
Re: DMR cylinder head
«
Reply #10 on:
May 14, 2022, 11:25:52 PM »
I use oem heads machined by Pete that have o'rings with zero leakage nor any over heating. Do o'ring cool heads have issues? Why would the DMR head have issues? I personally like o'rings over gaskets because they can be reused unlike gaskets.
Loren
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1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)
hickwheeler
Hero Member
Posts: 1328
Total likes: 160
Re: DMR cylinder head
«
Reply #11 on:
May 14, 2022, 11:32:06 PM »
I have reused head gaskets in a pinch with success using copper seal
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88 hybrid 431 puma
88 (BOF Build) stock motor and oem 89 plastics
More in the works
croat1
Global Moderator
Hero Member
Posts: 2939
Total likes: 611
Re: DMR cylinder head
«
Reply #12 on:
May 22, 2022, 07:55:45 PM »
Info
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ajbuilder250r
Newbie
Posts: 17
Total likes: 3
Re: DMR cylinder head
«
Reply #13 on:
May 27, 2022, 09:35:13 AM »
Got mine on and like it
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2ndmoto
Hero Member
Posts: 651
Total likes: 42
Re: DMR cylinder head
«
Reply #14 on:
May 27, 2022, 01:33:23 PM »
Interesting. Are fins an option?
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DMR cylinder head (stock cylinder)
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