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Originally Posted by pokeyl Anyone put a set of bigger throttle bodies on a N/A engine? Result? I did that mod earlier this year (winter project) but I haven't done
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12-15-2011, 10:54 PM
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#1 (permalink) | |
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A True Z Fanatic
Join Date: Oct 2009
Location: Canada
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Quote:
but I haven't done an extensive testing because at that time I had some ign timing issue caused by a cracked flywheel (discovered in September) but I did see some improvement my guess why I gained some power with the oversized TB was because when I did the test if i remember correctly , it was with my custom CAI which had a bigger MAF tube . soo the choking point was the Oem TB and not the MAF anymore 
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12-16-2011, 05:52 AM
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#2 (permalink) | |
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A True Z Fanatic
 
Join Date: Feb 2010
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How much over was it bored?
Quote:
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12-16-2011, 06:42 AM
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#3 (permalink) |
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A True Z Fanatic
Join Date: Oct 2009
Location: Canada
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Drives: 370z
Rep Power: 24 |
Oem TB are 60mm wide
I bored it up to 62.5mm + the butterfly shaft is cut in half with the screw has being filed down and the butterfly plate has an angled cut all around . the cost ? 500$ for both of them .(250$ /each) |
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