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JjyKs
Joined: 05 Oct 2015
Posts: 114
Location: Finland
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 Posted: Wed Feb 03, 2016 10:21 pm Post subject: Quick question: Size of the throttle body |
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Managed to get to work earlier today to have some time to buy little necessary things for my car after work.
One thing i was going to get was a silicone tubing between the throttle body (stock), and the ic piping. Forgot to measure it though, and the car is 50 kilometers away.. Does someone have any idea, or possibility to measure how big tube do i need?
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Thu Feb 04, 2016 12:52 am Post subject: |
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Go to my downloads page: http://garage.ideola.com/top-Downloads.html
Second section under the "More Tools..." heading, there is a link to a spreadsheet with throttle body comparison, should have the data you need.
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erstwhile owner of just about every 924 variant ever made |
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Dutch924-racer
Joined: 23 Jul 2007
Posts: 1081
Location: The Netherlands
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| Posted: Thu Feb 04, 2016 5:04 am Post subject: |
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80mm
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937 trackday car
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951S turbo and intercooler
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Thu Feb 04, 2016 5:30 am Post subject: |
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| Dutch924-racer wrote: | | 80mm |
???
I don't think that's correct...
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erstwhile owner of just about every 924 variant ever made |
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Fifty50Plus
Joined: 28 Feb 2008
Posts: 1422
Location: Washington DC area
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| Posted: Thu Feb 04, 2016 5:53 am Post subject: |
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I measured 80mm for the rubber flange on an NA throttle body.
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1979 924 NA race car H-Prod SCCA
1982 924 NA race car - Sold
1981 924 Turbo sold
1982 924 Turbo sold
1972 911 E race car - traded for Cayenne Diesel
1975 914 1.8 Building for H-Prod SCCA |
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JjyKs
Joined: 05 Oct 2015
Posts: 114
Location: Finland
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| Posted: Thu Feb 04, 2016 5:57 pm Post subject: |
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Seems to be around 80mm. Circumference is around 25cm, resulting in 79.5mm diameter. I had no soft tape measure, so had to measure it with a metal wire and then against metal ruler, so most likely circumference is something like 24.8.
No idea if the local dealer tells the inner or outer diameter of the tube, but they seem to have everything in the stock from 75 to 80, so today i'll go there with the throttlebody 
E: If someone is looking at this the 80mm was wrong. It might be tight enough on NA application with a tightened clamp, but it's a lot easier to just stretch a 3"/76mm one to the tb. The correct size would most likely be 77-78mm.
Last edited by JjyKs on Wed Apr 06, 2016 5:37 pm; edited 1 time in total |
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Dutch924-racer
Joined: 23 Jul 2007
Posts: 1081
Location: The Netherlands
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| Posted: Thu Feb 04, 2016 6:19 pm Post subject: |
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I have silicone hoses with 80mm inside fits series 1 oval en series 2 round throttle body.
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937 trackday car
Series 2 engine
951S turbo and intercooler
Fast road camshaft
Forge recirculation valve + boost controller |
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