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Throttle Body size 

 

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 Post subject: Throttle Body size
Posted: Wed Jan 18, 2006 11:24 am 
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Where do you measure the throttle body size from? Is it the throttle plate or the inner size of the opening?

Cause I got a EL XR8 series 2 and on the FPV site the differences were EL GT headers, Explorer manifold, larger throttle body and tweaks to the ECU.

I got the ELGT headers and Explorer manifold.
I think the standard TB size is 58mm so where do I measure to check the size?

Cheers

 

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Posted: Wed Jan 18, 2006 12:12 pm 
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The throttle bodies that came out for the EL GT's and AU XR8's was 65mm. I bought one and measured the outside port as 67 or 69mm ( or thereabouts ) and the inner port as about 64.7mm.

 

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Posted: Wed Jan 18, 2006 12:18 pm 
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OK cool. Then thats what I got on my EL XR8 then.
Inside the body it has a tiny little step about 1mm. So because its round take off about 2 or so mm and then the throttle plate is about 62mm diameter.

Thanks Vic.

 

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Posted: Thu Jan 19, 2006 6:55 pm 
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I think EL2 XR8's had a 63mm from memory

 

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Posted: Thu Jan 19, 2006 9:41 pm 
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any chance of posting a pic of your headers? I want to know whether mine have been changed or if they are standard.

 

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Posted: Thu Jan 19, 2006 11:41 pm 
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These are the stock ELGT extractors.

 

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Posted: Fri Jan 20, 2006 1:57 pm 
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thanks for the pic from memory they look similar but I will check mine out on the weekend and put up a pic of mine to compare. Is there any markings stamped on them or anything?

 

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Posted: Fri Jan 20, 2006 8:38 pm 
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Is there such a thing as a 65mm throttle body? I thought there were only 55mm and 65mm on the Windsors.
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Posted: Fri Jan 20, 2006 9:08 pm 
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65mm was fitted to AU V8's.

It was also fitted to Ford SUV's in the U.S. which is where Ford Australia sourced them from.

 

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Posted: Sat Jan 21, 2006 11:17 am 
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Sorry, was a typo. I meant is there any such thing as a 63mm throttle body. I have seen a few people refer to 63mm throttle bodies (as opposed to 65mm). I thought Ford only fitted 65 (AUs) and 55 (E-series) ones.
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Posted: Sat Jan 21, 2006 12:34 pm 
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Probably is a 65mm but people are being picky with the measurements. I got a ruler out and measured mine and it was about 63mm on the inner diametre after the bellmouth lip. I guess it depends on where you take your measurement.

I would of thought that the throttle plate is the bit you measure as it would be the narrowest/closest point before going into the manifold.

 

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Posted: Sun Jan 22, 2006 11:58 am 
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EL2 XR8's only have the small throttle body 58 or 60mm i replaced mine with the 70mm AU3 Tickford one
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Posted: Sun Jan 22, 2006 12:09 pm 
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eaturbo wrote:
EL2 XR8's only have the small throttle body 58 or 60mm i replaced mine with the 70mm AU3 Tickford one


Exactly, the measurement is taken from the narrowest point which is where the blade sits, and should be 59mm, so close enough to 60mm.
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Posted: Sun Jan 22, 2006 12:37 pm 
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FPV wrote:
A significant EL XR8 upgrade followed in October 1997 with little fanfare. An extractor exhaust system similar to the EL GT's, a larger throttle body, revised Explorer inlet manifolds and tweaking of the latest EEC V system lifted power output up to 185 kW with a small torque increase. The 16 inch wheel and tyre option became standard with two alloy wheel styles available.


According to FPV it should have a larger throttle body than standard and 58mm was standard.

 

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Posted: Sun Jan 22, 2006 12:45 pm 
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Timmeh wrote:
According to FPV it should have a larger throttle body than standard and 58mm was standard.


They are wrong, they also say they have roller rockers which they don't. A number of people have checked their EL2 TB's and they are the standard 60mm ones.
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