Turkey Pan

celentanogj · #1 (**permalink**) 10-31-2022, 05:01 AM

I decided to reinstall the turkey pan and did not use a spacer between the pan and the carburetor, after install I noticed that the secondary linkage rest on the bottom of the pan. Has anyone had this issue? Does the pan normally have to be modified? If a spacer is needed what thickness.
I'm using a 12" oval air cleaner with 1 1/2" tall K&N air filter with the Xtreme air filter top. I had K&N custom make the air filter which was only $10 more than their stock 2" tall filter. If a spacer is needed the air top wont fit.

mrmustang · #2 (**permalink**) 10-31-2022, 05:42 AM

If you are removing the spacer (carb to intake spacer?) then yes, you may need to file a bit of material for the linkage to work without interference.

As for air cleaner/filter, how can you fit a 12" air filter into the turkey pan?

Finally, K&N does not need to custom make a filter for your setup, they offer most 12-14" filters in 1/4 and 1/2" height increments as a stock item...Now, finding someone who stocks it, or is willing to order it for you, is a whole other story.

Bill S.

celentanogj · #3 (**permalink**) 10-31-2022, 07:04 AM

I'll post pictures when it's completed. Also there is a YouTube video of the "Gumball Rally"
cobra at a car show and the video shows a 12" filter in the "turkey pan".

https://youtu.be/E-qPkepYZjk

mrmustang · #4 (**permalink**) 10-31-2022, 09:12 AM

Quote:

Originally Posted by celentanogj

I'll post pictures when it's completed. Also there is a YouTube video of the "Gumball Rally"
cobra at a car show and the video shows a 12" filter in the "turkey pan".

https://youtu.be/E-qPkepYZjk

Oblong, yes, it will fit.....round, it will not....However, both will rob your engine of HP to the tune of 30-40+ depending on your build and tune, and that at the rear wheels as proven in the early 2K's on a chassis dyno.

Bill S.

Bill S.

Kojack70 · #5 (**permalink**) 11-02-2022, 08:05 AM

Hi Bill,

For my own curiosity, is it the turkey pan itself, the filter setup or combination of the two which will rob the horsepower?

Thanks
Don

[quote=mrmustang;1511690]Oblong, yes, it will fit.....round, it will not....However, both will rob your engine of HP to the tune of 30-40+ depending on your build and tune, and that at the rear wheels as proven in the early 2K's on a chassis dyno.

Bill S.

mrmustang · #6 (**permalink**) 11-02-2022, 11:39 AM

Quote:

Originally Posted by Kojack70

Hi Bill,

For my own curiosity, is it the turkey pan itself, the filter setup or combination of the two which will rob the horsepower?

Thanks
Don

Don,

It's actually the restriction in filter size that causes the issues, you may not be able to install a large enough filter (see formula below) to get the proper airflow needed for the best performance. If you are racing, and spend 80% of your time over 130mph, a turkeypan works quite well when combined with proper sealing with the hood scoop, below that, it's just a nice show piece and nothing else. Personally, I got rid of the turkeypan and smaller airfilter assemblies a number of my Cobras. Replaced with a K&N 66-3040 unit. Both big and small displacement motors, in a number of my Cobras, including my current ERA-FIA.

I do suggest that before you spend any money, no matter which direction you ultimately choose to go, you need to see exactly what CFM worth of filter assembly you need to properly feed your engine.

Using the simple formula

A= effective filter area
CID=engine displacement
RPM=maximum RPM expected

Using the CFM formula of height X diameter x 6 x 3.14

Hope this post is helpful.

Bill S.

PS: The 14" extreme filter top flows 500cfm by itself, just saying.

mrmustang · #7 (**permalink**) 11-02-2022, 12:10 PM

Found a picture of the K&N filter installed on a 428CJ powered ERA (717) I owned 10 or so years ago.

Bill S.

Kojack70 · #8 (**permalink**) 11-10-2022, 11:47 AM

Thanks, Bill for the insight. I love the vintage look of the turkey pan but it seems to cause more problems then it's worth. I'll stick with my oval K&N. If it's not broke, don't fix it.

Quote:

Originally Posted by mrmustang

Don,

It's actually the restriction in filter size that causes the issues, you may not be able to install a large enough filter (see formula below) to get the proper airflow needed for the best performance. If you are racing, and spend 80% of your time over 130mph, a turkeypan works quite well when combined with proper sealing with the hood scoop, below that, it's just a nice show piece and nothing else. Personally, I got rid of the turkeypan and smaller airfilter assemblies a number of my Cobras. Replaced with a K&N 66-3040 unit. Both big and small displacement motors, in a number of my Cobras, including my current ERA-FIA.

I do suggest that before you spend any money, no matter which direction you ultimately choose to go, you need to see exactly what CFM worth of filter assembly you need to properly feed your engine.

Using the simple formula

A= effective filter area
CID=engine displacement
RPM=maximum RPM expected

Using the CFM formula of height X diameter x 6 x 3.14

Hope this post is helpful.

Bill S.

PS: The 14" extreme filter top flows 500cfm by itself, just saying.