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Location:
Tamworth
Registered:
August 2004
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Re: Increasing Flow. 1G-GTE Head.
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Mon, 17 October 2005 10:12
 
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If u want CNC porting u need to find someone with a 5 axis machine. Alot rarer than the usually CNC. I have heard of a guy offering CNC porting for the 1jz or 2jz i think.
Hand porting is the cheapest and most common form.
A generall cast mark removal and cleanup around the seat area will give improvements.
3 angle valve face and valve seat is also on the cards if u want more.
For turboing i think u want around %80 flow on the exhaust compared to inlet which basically means whoever does the porting needs a flow bench.
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| | Subject | Poster | Date |
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Increasing Flow. 1G-GTE Head.
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GTtwin | Mon, 17 October 2005 04:21 |
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Re: Increasing Flow. 1G-GTE Head.
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CrUZsida | Mon, 17 October 2005 08:51 |
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Re: Increasing Flow. 1G-GTE Head.
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GTtwin | Mon, 17 October 2005 09:00 |
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Re: Increasing Flow. 1G-GTE Head.
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CrUZsida | Mon, 17 October 2005 09:15 |
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Re: Increasing Flow. 1G-GTE Head.
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gianttomato | Mon, 17 October 2005 09:29 |
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Re: Increasing Flow. 1G-GTE Head.
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jeffro RA28 | Mon, 17 October 2005 10:12 |
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Re: Increasing Flow. 1G-GTE Head.
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badboybubby | Tue, 18 October 2005 06:59 |
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Re: Increasing Flow. 1G-GTE Head.
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Fattony | Wed, 19 October 2005 03:35 |
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Re: Increasing Flow. 1G-GTE Head.
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Dirty_Sanchez | Wed, 19 October 2005 04:03 |
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Re: Increasing Flow. 1G-GTE Head.
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GTtwin | Sun, 23 October 2005 08:01 |
