Demon carbs choke tower removal
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
is the choke tower hollow at the bottom or solid cast? i would think a grinder or dremel and some polishing dies would be one way to do it.....did you give up on the bigger demon
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Last edited by bobs77vet; Jul 24, 2006 at 08:55 AM.
Thread Starter
Drifting
Joined: Nov 2002
Posts: 1,951
Likes: 1
From: Shore NJ
[QUOTE=bobs77vet]is the choke tower hollow at the bottom or solid cast? i would think a grinder or dremel and some polishing dies would be one way to do it.....did you give up on the bigger demon
I have been wondering the same thing about the tower being hollow or not...I know this demon is ok, the others I have found with aluminum shavings, so much for quality control, I was also thinking of switching the main body with a proform or Holley without a choke horn, the parts should be interchangable...
I have been wondering the same thing about the tower being hollow or not...I know this demon is ok, the others I have found with aluminum shavings, so much for quality control, I was also thinking of switching the main body with a proform or Holley without a choke horn, the parts should be interchangable...
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,391
From: At my Bar drinking and wrenching in Lafayette Colorado
Don't mill off the choke tower. The Demon carbs are set up and calibrated with the air bleeds with the tower in place. If you mill off the tower, you get virtually no flow improvement, but you do get an airflow change across the air bleeds which will screw up you high speed and low speed calibrations. Unless you want to do some serious re-calibration with air bleeds (and your Speed Demon does not have screw-in bleeds, making the job tough), leave the tower in place.
Thread Starter
Drifting
Joined: Nov 2002
Posts: 1,951
Likes: 1
From: Shore NJ
Originally Posted by lars
Don't mill off the choke tower. The Demon carbs are set up and calibrated with the air bleeds with the tower in place. If you mill off the tower, you get virtually no flow improvement, but you do get an airflow change across the air bleeds which will screw up you high speed and low speed calibrations. Unless you want to do some serious re-calibration with air bleeds (and your Speed Demon does not have screw-in bleeds, making the job tough), leave the tower in place.
Le Mans Master
Joined: Apr 2000
Posts: 5,202
Likes: 10
From: cincinnati ohio
St. Jude Donor '09
Originally Posted by lars
Don't mill off the choke tower. The Demon carbs are set up and calibrated with the air bleeds with the tower in place. If you mill off the tower, you get virtually no flow improvement, but you do get an airflow change across the air bleeds which will screw up you high speed and low speed calibrations. Unless you want to do some serious re-calibration with air bleeds (and your Speed Demon does not have screw-in bleeds, making the job tough), leave the tower in place.
And I have twice the fun!
Thread Starter
Drifting
Joined: Nov 2002
Posts: 1,951
Likes: 1
From: Shore NJ
Originally Posted by yellow 72
And I have twice the fun!
Instructor
Joined: Dec 2004
Posts: 124
Likes: 0
From: Gainesville GA
Originally Posted by 73jst4fun
Very nice, too bad the choke towers are there, wonder if I could swap my 650 demon body and metering blocks to a might demon main body....no choke towers...sounds too easy...
We use different metering blocks on the Mighty Demon series carburetors than the Speed Demon series carburetors. The float bowls, and baseplates would be the only things the same.
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