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silicone 90 for stock throttle body

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Old May 20, 2010 | 11:42 AM
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89LS1RS's Avatar
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Default silicone 90 for stock throttle body

what are you guys using for a 90 and where did you get it? i need to go from the stock tb to the maf with a 90. does the 4" fit ok, it seems more like 3.75. and then the maf seems closer to 3.5, so i dont want to just get a 4" and it doesnt fit.
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Old May 20, 2010 | 11:46 AM
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Take a measurement of your mass-air flow housing's outer diameter, and your throttle body's outer diameter, and that'll answer the question of sizes. After that, there are multiple sources you can use to get a good multi-ply reinforced coupler.

Report back with sizes, I'll report back with sources and a part number or two.
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Old May 20, 2010 | 12:58 PM
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well, the throttle body is 3.925"/99.75mm and the maf is 3.67"/93.25mm
so maybe one that is 100mm on one side and 95 on the other.
but i mainly see them in 4" and 3.5". will a 4" be too big on the maf end, or is it close enough?
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Old May 21, 2010 | 07:41 AM
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anyone?
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Old May 21, 2010 | 11:18 AM
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http://www.siliconeintakes.com/produ...3d9df59a5074a6
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Old May 21, 2010 | 06:47 PM
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thanks, thats what im looking for.
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Old May 23, 2010 | 11:57 PM
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I was running a rubber 4'' to 3.5'' on my conversion when I was N/A. The 4'' is slightly big, but not enough to be a problem. Just T clamp it.
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