Is a tapered throttlebody important?

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Sep 19, 2006 | 10:57 PM

crxsiperf

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From: pa, usa

Is a tapered throttlebody important?

What is the difference between no tapered and tapered throttlebody ? I need a 65mm throttlebody to fit with my edelbrock intake manifold and wanna know what the difference is>?

Sep 19, 2006 | 11:37 PM

salman

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From: karachi, sindh, pakistan

BUmp, i also need the same answer,

Sep 20, 2006 | 04:20 AM

type B16

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Re: (salman)

something about increased velocity i think

Sep 20, 2006 | 07:06 AM

mgags7

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yea a taper is gonna up velocity.....

just go with an rpm service tbody....

Sep 20, 2006 | 08:06 AM

JCushing

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From: Suck it Trebek

Re: (bb4ever)

stock TB's have the taper...

if your looking for a replacement its hard to beat this https://honda-tech.com/zerothread?id=1624626

Sep 20, 2006 | 08:10 AM

type B16

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Re: (JCushing)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCushing »</TD></TR><TR><TD CLASS="quote">stock TB's have the taper...

if your looking for a replacement its hard to beat this https://honda-tech.com/zerothread?id=1624626</TD></TR></TABLE>

thats what im planning

i think its 3" to 68mm butterfly

is that a good taper?

Sep 20, 2006 | 09:01 AM

NathanMorris

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Re: (type B16)

I have a 69mm-> 65mm on my D series. I'm pleased with it.

It's essentially creating a venturi which will in essence speed of velocity. It also helps that most of these are actually 3" which is what most intakes are....

Nathan

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Sep 20, 2006 | 09:18 AM

crxsiperf

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From: pa, usa

Re: (NathanMorris)

I heard that power throttlebody has no taper , and i dont really want a billet tb , they tend to stick sometimes

Sep 20, 2006 | 02:43 PM

JCushing

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From: Suck it Trebek

Re: (crxsiperf)

you heard wrong, it has a 3mm taper, mines 65 at the IM end, 68mm at the intake end

pretty sure the 68mm version tapers to 70 but i dunno for a fact.

Sep 20, 2006 | 08:45 PM

#10

type B16

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Re: (JCushing)

maxbore has a 5mm taper, 70mm out 65 butterfly

is more taper the better?

Sep 20, 2006 | 10:56 PM

#11

Supahr_Ed

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From: CaliFoenEyeAy

Re: (type B16)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by type B16 »</TD></TR><TR><TD CLASS="quote">maxbore has a 5mm taper, 70mm out 65 butterfly

is more taper the better?</TD></TR></TABLE>

are you sure you can bore a stock TB to 70mm at the opening? but im wondering the same question on the taper also...but he power is tapered, correct??

Sep 20, 2006 | 11:09 PM

#12

mgags7

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Re: (JCushing)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCushing »</TD></TR><TR><TD CLASS="quote">pretty sure the 68mm version tapers to 70 but i dunno for a fact.</TD></TR></TABLE>

ehh....the old reverse taper trick huh??