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LS1 NOS plate and 80mm throttle body?

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Old 11-10-2013, 11:33 AM
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Default LS1 NOS plate and 80mm throttle body?

I'm thinking about getting the NOS plate that goes behind my throttle body instead of using the fogger nozzles in the side of my intake bellow. I have a 80 or 85mm throttle body (not sure the size, it came with my intake when I got it.)
Will the NOS throttle body plate work with my throttle body?
Old 11-10-2013, 10:12 PM
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It will with the 80 but not the 85. I am using it on my 85 but opened it up to fit
Old 11-11-2013, 03:58 PM
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Originally Posted by LPTXZ28
It will with the 80 but not the 85. I am using it on my 85 but opened it up to fit
Sweet that's what I was wondering. I figured I could just open it up a bit worse comes to worse. I wonder what would be the best way to identify which TB I have?
Old 11-11-2013, 04:28 PM
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Theoretically, a plate, like ours which is 78 mm, not sure about NOS's, would work on there, but it would be best to either swap to a stock TB, or at least port match the plate so that it is a smooth transition between the plate and the TB.

-Garrett
Old 11-11-2013, 04:39 PM
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Originally Posted by Wicked 94TA
I'm thinking about getting the NOS plate that goes behind my throttle body instead of using the fogger nozzles in the side of my intake bellow. I have a 80 or 85mm throttle body (not sure the size, it came with my intake when I got it.)
Will the NOS throttle body plate work with my throttle body?
Can you post a picture of the throttle body you have? If its an 85 I'm thinking the throttle body blade will hit the plate when it tries to open.
Old 11-11-2013, 09:32 PM
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Here's the best pic I have of it right now. I'll have to take a better pic of it tomorrow with the air intake off. I searched around and I'm sure its a Summit one. I just don't know how to tell if its a 80 or 85mm.

Old 11-11-2013, 09:40 PM
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Measure the inside diameter
Old 11-12-2013, 08:05 AM
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Originally Posted by brandon6.0
Measure the inside diameter
I've got a set of calipers, would those be the best thing to use? I'm assuming the way to get the best measurement would be to take the TB off and measure it from the back?
Old 11-12-2013, 02:28 PM
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Originally Posted by Wicked 94TA
Here's the best pic I have of it right now. I'll have to take a better pic of it tomorrow with the air intake off. I searched around and I'm sure its a Summit one. I just don't know how to tell if its a 80 or 85mm.

Take off the air intake and look inside the throttle body. The BBK intake is 85mm so it will either be smooth matching up with the intake or have a lip behind the throttle body where it opens up to the intake.
Old 11-14-2013, 11:24 AM
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Originally Posted by LPTXZ28
Take off the air intake and look inside the throttle body. The BBK intake is 85mm so it will either be smooth matching up with the intake or have a lip behind the throttle body where it opens up to the intake.
I checked it today and its a smooth transition so it looks like I have an 85mm. Thanks for the suggestion.



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