Author Topic: 6400 Dolmar  (Read 1234 times)

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Offline aclarke

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6400 Dolmar
« on: February 04, 2014, 09:34:32 pm »
Anyone here ever play around with the porting on a 6400 jug?  Have one here I'm gonna try on my 7900 just for kicks. Seems like a they should make real good power.  looks like the 359 piston should work well, did a little port work, post some pics later Adam

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Offline aclarke

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Re: 6400 Dolmar
« Reply #1 on: February 04, 2014, 10:12:28 pm »
signs of flow reversal into transfers on this well used cylinder...




Offline aclarke

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Re: 6400 Dolmar
« Reply #2 on: February 04, 2014, 10:19:01 pm »
Added a little time and area to the exhaust, hoping that allows For less of a delay in transfer flow...

Offline jmester

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Re: 6400 Dolmar
« Reply #3 on: February 04, 2014, 10:30:10 pm »
Where are you seeing the flow reversal on the transfers? Just wanting to know where to look and what to look for.
FEAR NO TREE. FEAR GOD.

Offline aclarke

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Re: 6400 Dolmar
« Reply #4 on: February 04, 2014, 10:37:54 pm »
dark exhaust deposits on the tops of the transfers ans the streaks on the the transfer tunnel

Offline aclarke

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Re: 6400 Dolmar
« Reply #5 on: February 04, 2014, 10:39:08 pm »
streaks can be seen on the middle transfer in the pic

Offline aclarke

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Re: 6400 Dolmar
« Reply #6 on: February 04, 2014, 10:41:01 pm »
more pics...




Offline aclarke

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Re: 6400 Dolmar
« Reply #7 on: February 04, 2014, 10:43:48 pm »
intake...



Offline aclarke

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Re: 6400 Dolmar
« Reply #8 on: February 04, 2014, 10:46:32 pm »

Offline aclarke

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Re: 6400 Dolmar
« Reply #9 on: February 04, 2014, 10:50:00 pm »

 

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