Head, TB and Dyno thread - Club700XX - Honda TRX700XX Forum
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post #1 of 130 Old 12-21-2008, 05:40 PM Thread Starter
 
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Head, TB and Dyno thread

Starting this thread to follow through on my Head and throttle body porting followed by a Tune and dyno using a Power Commander. On to the first part. Here are a few pics of the head removal.










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post #2 of 130 Old 12-21-2008, 07:47 PM
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Now this is what a great forum is made off....
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post #3 of 130 Old 12-24-2008, 04:43 PM
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Look below

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post #4 of 130 Old 12-25-2008, 12:15 AM
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Is that a crack between the ports?

08 TRX700XX
88 LT500R QUADZILLA
06 DVX400 (Son's)
06 TRX250EX (Wife's)
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post #5 of 130 Old 12-25-2008, 11:33 AM
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Casting line. Youve not looked in alot of cylinder heads, they all have em somewere. Thats were the 2 halves of the mold join together when the foundery cast the head:-)
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post #6 of 130 Old 12-25-2008, 04:29 PM Thread Starter
 
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I'm excited to see what kind of numbers I can put down when its all back together. To let everyone else in on things I'm sending VelociRaptor my cam and chain sprocket so he can compare it to a 650 cam he has. Hopefully we can use one on this build! Also everyone may notice the rich condition I was running, This was with the 3rd optimizer setting on a 5.5, obviously its too much. I will be more than glad to share the map they build for me for the PowerCommander also.
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post #7 of 130 Old 12-25-2008, 10:14 PM
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Quote:
Originally Posted by VelociRaptor View Post
Casting line. Youve not looked in alot of cylinder heads, they all have em somewere. Thats were the 2 halves of the mold join together when the foundery cast the head:-)

Not many multi valve aluminum heads, most of my experience is with SB, BB Chevy, B.O.P. cast iron heads and 2-strokes.

Now that I look at it again I see the casting line run all the way up to the valve seat.

08 TRX700XX
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06 DVX400 (Son's)
06 TRX250EX (Wife's)

Last edited by vfm2010; 12-25-2008 at 10:27 PM.
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post #8 of 130 Old 12-25-2008, 10:31 PM
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Automotive industry is were I started, ported many LSX/SBC/BBF/SBF heads- aluminum and iron.
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post #9 of 130 Old 12-25-2008, 11:30 PM
 
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post #10 of 130 Old 12-26-2008, 10:18 AM
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When I bought my Raptor the sales manager started to ask if I wanted an extended warranty and stopped....he new better. 3 months later it had a piston swap and ported cylinder head.
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