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Workshop => The Mad Scientist => Topic started by: croat1 on April 28, 2022, 06:19:30 PM

Title: DMR cylinder head (stock cylinder)
Post by: croat1 on April 28, 2022, 06:19:30 PM

DMR cylinder head……

Title: Re: DMR cylinder head
Post by: croat1 on May 06, 2022, 08:37:48 PM

With or without headstay

Title: Re: DMR cylinder head
Post by: Jordanscott888 on May 08, 2022, 11:45:46 PM

What FB group does he post in? I never see him on owners for life

Title: Re: DMR cylinder head
Post by: croat1 on May 09, 2022, 04:02:18 AM

Jordan, this is the page:

Title: Re: DMR cylinder head
Post by: Jordanscott888 on May 09, 2022, 10:38:06 AM

Thank you! Interested to see more info on that head.

Title: Re: DMR cylinder head
Post by: croat1 on May 11, 2022, 05:40:57 PM

Modquad branded

Title: Re: DMR cylinder head
Post by: Jordanscott888 on May 11, 2022, 11:14:48 PM

I’m curious what the improvements are that he was alluding to. He never specified.

Title: Re: DMR cylinder head
Post by: atvmxr 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

Title: Re: DMR cylinder head
Post by: broken1 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.

Title: Re: DMR cylinder head
Post by: ajbuilder250r on May 14, 2022, 10:54:56 PM

It uses a head gasket. I just installed this head on my bike this afternoon

Title: Re: DMR cylinder head
Post by: The norm 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

Title: Re: DMR cylinder head
Post by: hickwheeler on May 14, 2022, 11:32:06 PM

I have reused head gaskets in a pinch with success using copper seal

Title: Re: DMR cylinder head
Post by: croat1 on May 22, 2022, 07:55:45 PM

Info

Title: Re: DMR cylinder head
Post by: ajbuilder250r on May 27, 2022, 09:35:13 AM

Got mine on and like it

Title: Re: DMR cylinder head
Post by: 2ndmoto on May 27, 2022, 01:33:23 PM

Interesting. Are fins an option?

Title: Re: DMR cylinder head
Post by: ajbuilder250r on May 27, 2022, 04:33:31 PM

I don't know. This was the 'first batch' before any of them were anodized, etc.

Title: Re: DMR cylinder head (stock cylinder)
Post by: croat1 on September 17, 2023, 06:23:39 PM

Sharing

Title: Re: DMR cylinder head (stock cylinder)
Post by: havinnoj on September 17, 2023, 08:49:26 PM

Cool to see, these remind me a lot of the original style ESR billet heads, love the look!