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Harv
Joined: 01 Jul 2010
Posts: 172
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 Posted: Thu Oct 03, 2019 4:21 am Post subject: Replacement piston sets - Barrett? |
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All
Can anyone confirm if the high compression piston and ring sets can be used with the Housai hs6 engines? I know they fit the yak (perhaps they’re interchangeable between m14p and hs6??)
Also are these only produced and sold by Barrett or are there other suppliers?
With thanks
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Richard.goode(at)russiana
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| Posted: Thu Oct 03, 2019 10:46 pm Post subject: Replacement piston sets - Barrett? |
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All the engines can accept high compression pistons, but the M 14 family pistons are different with a larger piston pin.
Richard Goode
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GeorgeCoy
Joined: 02 Dec 2010
Posts: 310
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| Posted: Fri Oct 04, 2019 5:09 am Post subject: Replacement piston sets - Barrett? |
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Motorstar has manufactured higher compression pistons for the HS6a and the AI14 engines. The limitations are that users must use 100LL and due to the construction of the basic engine can only safely bump up the compression from 5.9 to 6.3.
George Coy
MotorstarNA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy(at)gmail.com
http://motorstarna.com/
SKYPE george.coy
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wlannon(at)shaw.ca
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| Posted: Fri Oct 04, 2019 12:51 pm Post subject: Replacement piston sets - Barrett? |
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Hi George;
The HS6a (285 HP) stock piston gives a compression ratio of 6.2 +/- 0.1.
The HS6 and AI14R (260 HP) engines are 5.9 +/- 0.1
Walt
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Harv
Joined: 01 Jul 2010
Posts: 172
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| Posted: Tue Oct 08, 2019 3:58 am Post subject: Re: Replacement piston sets - Barrett? |
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Thanks for the replies which suggest there's only an upgrade piston for the HS6 engine (not the hs6a which already has 6.1:1 compression and therefore isn't really an "upgrade").
Does anyone know if Bill Blackwell is active still with CJ6's and what his contact details are, email address or web contact?
With thanks
Harv
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GeorgeCoy
Joined: 02 Dec 2010
Posts: 310
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| Posted: Tue Oct 08, 2019 5:49 am Post subject: Replacement piston sets - Barrett? |
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We have produced two sets for clients at 6.3 to 1 (M14P compression ratio)
with the 3 ring SPC pistons. One for a Wilga and one for a CJ6. I do not
recall any significant performance increase reports other than the reduced
oil consumption due to the 3 ring pistons.
George Coy
MotorstarNA
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wobema
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| Posted: Wed May 11, 2022 12:00 pm Post subject: Re: Replacement piston sets - Barrett? |
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At Drywall Repair Guys, we are proud to offer the residents of Vacaville with the best drywall repair services. We have been in the industry for quite some time now and have earned a good reputation. Our team can handle any type of damage to your home, no matter how big or small it is. You can count on us to provide you with an excellent service that will leave you satisfied with the end result.
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JasperWheeler
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| Posted: Fri May 20, 2022 12:08 pm Post subject: Re: Replacement piston sets - Barrett? |
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I have both engines and have swapped parts between them several times. The House has a different cylinder head with a slightly different compression ratio, so the pistons are different. Also you can get help from resume planet to get reliable information easily. However, it’s not too difficult to swap them out. The only real difference between the two engines is that you need to use a different flywheel on the Housai because of its higher compression ratio.
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