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opinions on my exhaust port (pics inside)

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Old 03-25-03, 11:19 AM
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Twin Turbo LSX

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opinions on my exhaust port (pics inside)

Well, I haven't gotten much reponse from the single turbo group, so I figure I'll try with you guys.

I'm running a T78 w/ GT79 wheel and decided to open my ports up some more since my last motor was mildly ported for twins. Before I put her back together I wanted to ask for everyone's opinions. Any suggestions? I'll post my intake ports tomorrow.

If you look closely at the last pic, you'll notice that I have room to probably square up the top of the port. What are the advantages and disadvantages to doing this verses keeping more of a "D" shape?





Old 03-26-03, 09:18 PM
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It's my understanding that squaring off the port does move the torque band higher...keeping it round broadens things a bit...this from the "other" forum and Judge Ito. I've been told not to go too far up either, especially on a street car. I'll shoot you a PM and give you the direct link. You can see images of my port job there as well :-) I thought you would have gotten your motor together and in by now!
Old 03-27-03, 04:01 PM
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R0TORY ADDICTED **-)

 
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looks good :-)
Old 03-29-03, 10:27 AM
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I have also heard that while a squared off port will produce more peak power in general, the rounded port will give a broader powerband. Looks good though man
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