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Jun 10, 2020 | 04:53 AM

Midnight 85

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Le Mans Master

Joined: May 2004

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From: Hellinois

Finalist 2020 C4 of the Year - Modified

air coupler

Is anybody running a big throttle body? I am using an LS style tb made by Fitech and my stock pleated one will not stretch far enough to suit me. I had to split mine in as far as the first part of the "accordion" and then seal it with RTV. This not what I want to have on my engine. The aftermarket smooth ones are good for 4 inches, my tb is right at 5. I don't want to spend 50 bucks on something I cant make work.If anyone has a suggestion I sure would like to hear it.

Jun 10, 2020 | 09:58 AM

FAUEE

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From: Melbourne, FL

LS throttle bodies have circular openings, not round?

Jun 10, 2020 | 10:17 PM

Midnight 85

Thread Starter

Le Mans Master

Joined: May 2004

Posts: 5,866

Likes: 60

From: Hellinois

Finalist 2020 C4 of the Year - Modified

Yes, round,, & close to 4.5 inches diameter.

Last edited by Midnight 85; Jun 10, 2020 at 10:23 PM.

Jun 10, 2020 | 10:22 PM

Tom400CFI

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Joined: Aug 2004

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From: Park City Utah

Go to a hose shop with your TB...they can set you up with what ever you want.

Jun 11, 2020 | 04:42 AM

Midnight 85

Thread Starter

Le Mans Master

Joined: May 2004

Posts: 5,866

Likes: 60

From: Hellinois

Finalist 2020 C4 of the Year - Modified

Thanks, I'll have to see if I can find one

Jun 11, 2020 | 11:47 AM

Tom400CFI

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From: Park City Utah

Quote:

Originally Posted by Midnight 85

I'll have to see if I can find one

There are many options in any big city...

https://goo.gl/maps/HfEC3M3qYaWD5BzJ8

Jun 11, 2020 | 03:26 PM

FAUEE

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From: Melbourne, FL

I'm using a silicone coupler as part of my diy intake, that's probably what I would use in your case.

How's you swap to an LS TB?

Jun 12, 2020 | 09:55 AM

Midnight 85

Thread Starter

Le Mans Master

Joined: May 2004

Posts: 5,866

Likes: 60

From: Hellinois

Finalist 2020 C4 of the Year - Modified

Quote:

Originally Posted by FAUEE

I'm using a silicone coupler as part of my diy intake, that's probably what I would use in your case.

How's you swap to an LS TB?

It is a fantastic setup. I have the Edelbrock Pro Flo XT and it is made to use the LS throttle body. I bought a Summit brand first and it was just okay. Then I saw the G-Plus tb and liked the features it had so I got one. I have had tps and iac issues ever since I put the Pro Flo on. I decided I had had enough with the cheap throttle bodies, the G-Plus was a mess. I bought a Fitech 102mm and the car has never performed like it does now. The iac is controlling the idle perfectly and the tps is easily made to be adjustable so it is keeping it's setting too. I can't say enough about the Fitech. I even have the air coupler problem solved and I will be starting a new thread with pictures on what I did, and it was for under $10.