porting throttle body

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Old Sep 22, 2008 | 04:53 PM
  #1  
Hondacivic91dx's Avatar
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Default porting throttle body

would it be better to port my stock throttle body or put a b-series throttle body on my car?? looking for more lowend response
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Old Sep 22, 2008 | 05:05 PM
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Default Re: porting throttle body (Hondacivic91dx)

Please list your modifications.

The throttle body is not what you need to be looking at i would bet.

Edit: i see your sig now, and would say you need to look at the exhaust side of the engine. It is the bottleneck.
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Old Sep 22, 2008 | 05:06 PM
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Default Re: porting throttle body (Hondacivic91dx)

either way ya go ya need to port match the intake, i would do the b series and posrt the intake opening
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Old Sep 22, 2008 | 05:09 PM
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it has .22 shaved head, adjustible fuel regulater, full exhaust, CAI
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Old Sep 22, 2008 | 05:12 PM
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Default Re: (Hondacivic91dx)

with the milled head you should have increased the engine tq a little, makes me think if you feel that you lack throttle response you should look at the engine timing to be honest.
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Old Sep 22, 2008 | 05:14 PM
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to be honest it actually feels slower than before i had it done
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Old Sep 23, 2008 | 11:43 AM
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Default Re: (Hondacivic91dx)

fix the timing.

do a compression and or leakdown test.

the head may have been re-installed incorrectly. now it might just be that the timing is off a tooth, check it first it's easier.
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Old Sep 23, 2008 | 02:10 PM
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Default Re: (Hondacivic91dx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hondacivic91dx &raquo;</TD></TR><TR><TD CLASS="quote">it has .22 shaved head, adjustable fuel regulater, full exhaust, CAI</TD></TR></TABLE>

do you mean .022(inches) or .22mm(.009 inches)? either way you definitely need an adjustable timing gear.
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Old Sep 25, 2008 | 04:17 AM
  #9  
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.022 inches gonna check the timing later on today i will let u know the results
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Old Sep 25, 2008 | 01:37 PM
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Default Re: (Hondacivic91dx)

the head was shaved .22 ?
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Old Sep 25, 2008 | 09:28 PM
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Default Re: (oldskool89ef)

0.022 inches = .55mm

Cam gears and dyno, there is no other way around...
*** dyno fails here....

while i was playing with cam gear setting, there was a point where complete power band shifted between 2000 to 6000 rpm. was really fun to drive...
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Old Oct 1, 2008 | 08:33 PM
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Default Re: porting throttle body (Hondacivic91dx)

there is a long *** debated thread on here i believe. it was started bt someone asking about the same question. basically the whole best size for highest air velocity... i.e. B-Series TB would and like 3" CAI lost power on a D-series.... just my tow cents...

nitrous
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