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Old 08-15-2007, 10:24 PM   #1
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Default 3 port to 5 port?

I have a sirio evo3 3 port non STI that's in need of a new p/cyl. Can I put a 5port sleeve in it? I've been told that an STI sleeve would fit but a 5 port slv. cost $90 on kyoshos site versus $150 for a STI slv. on murnans site. Any info would greatly be appreciated. Thanks
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Old 08-16-2007, 05:18 AM   #2
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Originally Posted by ed7r View Post
I have a sirio evo3 3 port non STI that's in need of a new p/cyl. Can I put a 5port sleeve in it? I've been told that an STI sleeve would fit but a 5 port slv. cost $90 on kyoshos site versus $150 for a STI slv. on murnans site. Any info would greatly be appreciated. Thanks
The 5 poet sleeve will fit in the 3 port case but i believe that the crank is also different to the 3 port item with more aggressive timing!
To get the full 5 port performance you will need to aquire the matching crankshalft!

The STI sleeve will give your motor as good performance as the 5 port sleeve imho!
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Old 08-16-2007, 11:20 AM   #3
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Thanks for that info. Would anybody know where to get parts for Evo3 non STI. Kyosho website shows only parts for 5port non Sti not for 3port. 3port parts r Sti stuff. Thanks.
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