Hope this is the right place to post this here. I have been looking for a better option to replace my Stromberg WW 2bbl carb on the camper.
I contacted Jeff Rice at Deep-N-Hock Racing in Georgia and asked if he could modify a Studebaker 2bbl manifold to accept a Rochester Quadrajet carb. In my case I was trying to get better mileage as the performance was adequate. I had originally used a Carter AFB off of an R1 engine and saw 14 to 15 mpg on the highway and around 12-11 in town. The Stromberg was only giving me 11-12 overall and only a best of 13 on the highway only. So thinking that the small sized primaries and very large secondaries would give me the best of both worlds I dove in. Here is a picture of the manifold as modified by Jeff:
The carb I purchased on sale from Jegs for under $150 and free shipping. It is a rebuilt and as someone who has rebuilt hundreds of carbs it by all appearances looks to be very well done and the performance so far bears that out. Here is a shot of the carb bolted to the manifold. We used a Quadrajet to Holley 1" aluminum spacer to neck down the secondaires:
Upon removing the carb I verified my diagnosis that the lifter valley gasket had slipped and was causing a big oil leak at freeway speeds. So a new gasket, glued down this time was installed and then the intake and carb were bolted into place:
An Edelbrock flat black air cleaner was the finishing touch. The fuel line shown is temproary as I was not sure if i would like this set up. Keep in mind the manifold mods were not cheap so you can bet I will keep playing with this until I am convinced it won't work before I remove it. The first test drive of 75 miles produced 16.8 mpg, a huge improvement:
I had to adjust the secondary air flapper plate spring and make it looser so the secondaries would work better and earlier as I shift the truck at 3000 rpm. A picture and written description of that adjustment can be found on Racing Studebakers.com under the projects section and Quadrajet manifold. The wife and I drove the 100+ mile round trip to the Lompoc car show this past Saturday. Averaged in the 12-13 range for mileage but I had to consider there were two very big hills that I had to climb without the aid of the secodaries as I had not had a chance to dial them in yet. So it was a long pull at slow speed without the secondaries and I am sure that killed the mileage some. Planning a trip North at the end of the month and by then it should be dialed in as I drive it daily. I'll let you know what the mileage is on that trip which should be about 300 miles round trip as we are going to Monterey for the weekend. If this works I hope that some of the Studebaker fans can consider it as another option for thier cars and trucks. Next step is a multi port fuel injection which should be ready by years end.
Dan
I contacted Jeff Rice at Deep-N-Hock Racing in Georgia and asked if he could modify a Studebaker 2bbl manifold to accept a Rochester Quadrajet carb. In my case I was trying to get better mileage as the performance was adequate. I had originally used a Carter AFB off of an R1 engine and saw 14 to 15 mpg on the highway and around 12-11 in town. The Stromberg was only giving me 11-12 overall and only a best of 13 on the highway only. So thinking that the small sized primaries and very large secondaries would give me the best of both worlds I dove in. Here is a picture of the manifold as modified by Jeff:
The carb I purchased on sale from Jegs for under $150 and free shipping. It is a rebuilt and as someone who has rebuilt hundreds of carbs it by all appearances looks to be very well done and the performance so far bears that out. Here is a shot of the carb bolted to the manifold. We used a Quadrajet to Holley 1" aluminum spacer to neck down the secondaires:
Upon removing the carb I verified my diagnosis that the lifter valley gasket had slipped and was causing a big oil leak at freeway speeds. So a new gasket, glued down this time was installed and then the intake and carb were bolted into place:
An Edelbrock flat black air cleaner was the finishing touch. The fuel line shown is temproary as I was not sure if i would like this set up. Keep in mind the manifold mods were not cheap so you can bet I will keep playing with this until I am convinced it won't work before I remove it. The first test drive of 75 miles produced 16.8 mpg, a huge improvement:
I had to adjust the secondary air flapper plate spring and make it looser so the secondaries would work better and earlier as I shift the truck at 3000 rpm. A picture and written description of that adjustment can be found on Racing Studebakers.com under the projects section and Quadrajet manifold. The wife and I drove the 100+ mile round trip to the Lompoc car show this past Saturday. Averaged in the 12-13 range for mileage but I had to consider there were two very big hills that I had to climb without the aid of the secodaries as I had not had a chance to dial them in yet. So it was a long pull at slow speed without the secondaries and I am sure that killed the mileage some. Planning a trip North at the end of the month and by then it should be dialed in as I drive it daily. I'll let you know what the mileage is on that trip which should be about 300 miles round trip as we are going to Monterey for the weekend. If this works I hope that some of the Studebaker fans can consider it as another option for thier cars and trucks. Next step is a multi port fuel injection which should be ready by years end.
Dan
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