1992 smooth coupler

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Nov 8, 2016 | 06:22 AM

C4in mesa

Thread Starter

Drifting

Joined: Dec 2011

Posts: 1,439

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From: mesa az

1992 smooth coupler

I just got a smooth coupler from Mid America Corvette. Actually I ordered it from Eckler's but it was shipped from Mid America. I noticed it doesn't have a hole for the air temperature sensor on the right side near the throttle body. I never felt the need to read instructions prior to making my order. Hose clamps seem pretty easy as long as you have a flat head screw driver or 8mm wrench. The instructions say drill a hole to fit the sensor. The hole size here is critical to prevent any vacuum leak. Has anyone done this install? My factory coupler split where it attaches to the throttle body.

Nov 8, 2016 | 08:37 AM

BlowerWorks

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I'd suggest mounting the temp sensor elsewhere. Does not have to be in the air stream.

Nov 8, 2016 | 06:43 PM

Tom400CFI

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From: Park City Utah

Quote:

Originally Posted by C4in mesa

The instructions say drill a hole to fit the sensor. The hole size here is critical to prevent any vacuum leak.

There is no vacuum on the smooth coupler; it vents to atmosphere, and you have no MAF in your intake. The hole size should be a reasonable fit...but there is no "pull" there to create a leak.

.

Last edited by Tom400CFI; Nov 8, 2016 at 06:44 PM.

Nov 8, 2016 | 06:46 PM

JrRifleCoach

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From: Freedom is never more than one generation away from extinction.

St. Jude '03 thru '24

My smooth coupler split on the mold line, after many years of service.
Select your hole location wisely.

Nov 8, 2016 | 10:01 PM

C4in mesa

Thread Starter

Drifting

Joined: Dec 2011

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From: mesa az

Tom thank you
JrRiflecoach thank you

Nov 13, 2016 | 02:43 PM

C4in mesa

Thread Starter

Drifting

Joined: Dec 2011

Posts: 1,439

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From: mesa az

I chose a bit smaller than the sensor and made the hole. The smaller hole made the sensor a tight fit.

Nov 13, 2016 | 02:46 PM

C4in mesa

Thread Starter

Drifting

Joined: Dec 2011

Posts: 1,439

Likes: 23

From: mesa az

I want to add that the coupler is longer than the stock part. It has to be trimmed on the end that connects to the throttle body. In my case anyway the air filter box won't screw into the radiator shroud.