393c 1970 Mustang vs. 455 HO Trans Am
Very good race considering the 455 was built alot better than the cleveland, in the end couldn't quite pull it off. Wondering if he used his NOS.
Quadrajet Carburetor Jet Change part 2 of 2
Jets can be changed without even removing the carburetor from the vehicle. Step 1: remove air filter and housing, 2: remove 9 Philips head #1 screws, 3: knock out roll pin for carburetor fuel pumpshot lever. 4: loosen all four 1/2 inch bolts securing the carburetor, but only remove the front two, 5: remove tiny clip securing choke butterfly, 6: lift off top half of the carburetor, 7: remove gasket, float spacer, and float then change the jets with a larger number 2 or 3 strait screwdriver.. there ya have it!! *** video by: Cameron Altizer ***
Rochester Quadrajet Marine Carburetor Rebuild - Part 3 of 3
http://www.carburetor-parts.com is happy to provide the informational video about rebuilding the Quadrajet marine carburetor. Buy carburetor parts for this carburetor at: http://www.carburetor-parts.com/SearchResults.asp?Search=marine&Search.x=0&Search.y=0
Quadrajet Carburetor Jet Change part 1 of 2
Jets can be changed without even removing the carburetor from the vehicle. Step 1: remove air filter and housing, 2: remove 9 Philips head #1 screws, 3: knock out roll pin for carburetor fuel pumpshot lever. 4: loosen all four 1/2 inch bolts securing the carburetor, but only remove the front two, 5: remove tiny clip securing choke butterfly, 6: lift off top half of the carburetor, 7: remove gasket, float spacer, and float then change the jets with a larger number 2 or 3 strait screwdriver.. there ya have it!! *** video by: Cameron Altizer ***
Quadrajet Electronic Carburetor Rebuild - Teardown Part 2
http://www.carburetor-parts.com. Mike's Carburetor Parts has provided this video about rebuilding the Rochester Quadrajet E4MC, E4ME, electronic version. This video is part 2 of 2, tear down. A later video will feature the assembly of this carburetor. (c) www.carburetor-parts.com
More Quadrajet tuning, some things! Part two in this Saga Sept 13, 2010
With the camera sitting on the oil filler cap a few more things to show how a metering rod system works on a carburetor. The car has a slight stumble and surge at a light throttle cruise at about 55 to 60 MPH. By swapping out the .050 metering rods to .048 units, the stumble and driveability concerns are now gone. Going richer would mean worse fuel mileage one may think? No! Now that the mixture is right, LESS throttle opening is needed now, which means higher vacuum, and this way the metering rods will block off the correct amount of fuel, and in the proper timing and percentages, so the car runs much smoother. As stated many times, patience and reading up on, and understanding how these intricate carburetors work will help out very much! Enjoy!
More Quadrajet tuning, some things! Part one in this saga on Sept 13, 2010
The car has a slight stumble and surge at a light throttle cruise at about 55 to 60 MPH. By swapping out the .050 metering rods to .048 units, the stumble and driveability concerns are now gone. Going richer would mean worse fuel mileage one may think? No! Now that the mixture is right, LESS throttle opening is needed now, which means higher vacuum, and this way the metering rods will block off the correct amount of fuel, and in the proper timing and percentages, so the car runs much smoother. As stated many times, patience and reading up on, and understanding how these intricate carburetors work will help out very much! Enjoy!
750 vs. 800cfm Rochester Quadrajets-how to tell them apart
There exists a ton of misinformation regarding the actual airflow capacity of the Rochester Quadrajet. Not many people know how many variations there are or how to tell them apart.
Here is a simple video explaining how to identify each size based on casting design. I will cover the "cfm-limited" carbs in a separate video.
Everything you wanted to know about automatic chokes but were afraid to ask pt2
I've noticed many people drive vehicles with inoperative chokes. Even though chokes can be intimidating, repairing and adjusting them actually is very simple.
So, stop pumping that accelerator and follow along as we look at how chokes work and how to repair them.
Quadrajet air leak fix and warped air horn repair tutorial.
How to identify a Quadrajet with a warped air horn without diss assembly or running it on a car. These tips would have saved me time and money which is why I made this video. I also discus how to repair a warped air horn and prevent your air horn from warping in the first place. If you have a whistling noise just off idle then you got some work to do. You will never get your engine tuned right, your cold start performing or decent fuel economy unless your four barrel carburetor is just right. Special thanks to Cliff Ruggles for his book Rochester Quadrajet carburetors and to my brother Adrian who spent hours on tuning and fitting.
See this video for description of the technique I used to straighten a warped air horn.
http://www.youtube.com/watch?v=l_SgQiVf3_0&feature=youtu.be
