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Au V8 throttle body upgrade or not 

 

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 Post subject: Au V8 throttle body upgrade or not
Posted: Fri Mar 04, 2011 11:13 pm 
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Ride: au1 V8 1 tonne poverty pac ute

Location: Brisbane
QLD, Australia

To my au1 1 tonne ute I have fitted a complete new (unused) explorer 5l engine gt40p heads , cam used in the EL gt program, 1.72 street terra bolt on roller rockers, newtickford extracs/cats and 2 1/2 inch system, wide mouth cold air intake snorkel and K&N high flow airfilter, I have used the MAF and standard throttle body off the original 175 kw motor, would a 70mm or 75mm throttle body make a noticable difference, if so would I also need to change the MAF and adapter plate :?:

 

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 Post subject: Re: Au V8 throttle body upgrade or not
Posted: Sat Mar 05, 2011 12:32 pm 
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What MAF and t-body do you have now?
A 70mm t-body is as large as i would go. 75mm will actually reduce performance.
If your MAF is a 70mm already I would leave that in place.
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 Post subject: Re: Au V8 throttle body upgrade or not
Posted: Sat Mar 05, 2011 1:23 pm 
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Ride: au1 V8 1 tonne poverty pac ute

Location: Brisbane
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Dont realy know what size they are I just assume that they are standard 68mm, can I measure them and how, dont really know a great deal about them
XR9UTE wrote:
What MAF and t-body do you have now?
A 70mm t-body is as large as i would go. 75mm will actually reduce performance.
If your MAF is a 70mm already I would leave that in place.

 

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 Post subject: Re: Au V8 throttle body upgrade or not
Posted: Sat Mar 05, 2011 1:30 pm 
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Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Std is 65mm.
If it's a std Explorer engine and intake it will be a 65mm t-body. To measure it, ideally you would remove it and measure the back side because the front side tapers out to a larger diameter. There is no advantage to have a 70mm over a 65mm.
The MAF has some numbers on the sensor. If your's is a 70(it should be on an AU) it will have AFH-70 on it.
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 Post subject: Re: Au V8 throttle body upgrade or not
Posted: Sat Mar 05, 2011 1:51 pm 
Stock as a Rock
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Age: 63

Posts: 108

Joined: 4th Mar 2011

Gallery: 6 images

Ride: au1 V8 1 tonne poverty pac ute

Location: Brisbane
QLD, Australia

Thanks for the info, would be standard, money better spent elsewhere,cheers
XR9UTE wrote:
Std is 65mm.
If it's a std Explorer engine and intake it will be a 65mm t-body. To measure it, ideally you would remove it and measure the back side because the front side tapers out to a larger diameter. There is no advantage to have a 70mm over a 65mm.
The MAF has some numbers on the sensor. If your's is a 70(it should be on an AU) it will have AFH-70 on it.

 

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