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Top 2GNT Technical Performance/Engine topic #96857
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Subject: "dual springs" Previous topic | Next topic
donnyb373Mar-06-06 05:11 PM
Member since Apr 07th 2004
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#96857, "dual springs"




          

since when did they make these for the 420a platform, i was goin to buy the crane ones but damn im bout to buy these as long as somone can vouche forem

  
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cougar694uMar-07-06 03:36 AM
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#96864, "RE: dual springs"
In response to Reply # 0



          

uhh, from who? Where? Link?

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

  
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donnyb373Mar-07-06 10:33 AM
Member since Apr 07th 2004
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#96875, "RE: dual springs"
In response to Reply # 1



          

oops here you go http://cgi.ebay.com/ebaymotors/MITSU-NEON-DOHC-420A-TI-RETAINER-DUAL-SPRINGS-KIT_W0QQcmdZViewItemQQcategoryZ33617QQitemZ8041061426QQtcZphoto

  
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cougar694uMar-08-06 05:35 AM
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#96886, "RE: dual springs"
In response to Reply # 2



          

He doesn't really say what the specs are, other than 80# at 35mm.

The crane replacements are 60# at about 39mm and 255# at about 27mm. Our installed spring height is 38 mm. At installed height, it should hold 60#+, which the 3mm difference may not be enough for it to drop below 60#.

One major spec they don't list is the pressure while the valve is open. I'm sure those double springs have an assload of pressure at 27mm, but you may want to check before you buy them.

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

  
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