Jmustang_65
Famous Member
Use stock one.
Remote Turbo Setup & Falcon Sixes?
Crustang to Mustang
Well-known member
I'd have to buy one. Mine is relatively trashed (rusted, pitted chrome, wobbly T-handle, etc). This is why I was looking at the options that cost around the same as a repro shifter.
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Crustang to Mustang
Well-known member
This doesn't seem too hard to pull off and I would imagine that the difference in performance is very small compared to a complete 2v conversion.No CNC machining
Most are done with hand held tools
I've seen one member use a die grinder to cut the intake carburetor mount down to where it opens up
Another example:
Thanks for the replies, it sounds like I have a "hex" log.
Some background on what I want to do. Right now my van is sporting the Holley 1940 carb that was on the 170 engine the van came to me with. It runs the engine, but not very well. I have some 2G carbs and the one I want to use is the black one in the photo:
This is the carburetor (left) I bought from Ebay. It’s referred to as a Mercarb and similar to a Rochester 2G, but has some differences. This is the smaller unit for the 120/140 Hp engines as evidenced by the smaller throttle bores. You can see there is...
Crustang to Mustang
Well-known member
So I think I am just going to start with 5psi because this will allow me to use a cheap boost retard method like the one I asked about previously, correct? I will go ahead and have the turbo system set up with future plans of higher boost in mind but I will "detune" (for lack of better words) it for 5psi for now until I save enough for an MSD system. I will plan for an eventual 10-12psi using the MSD system and a set of hypereutectic pistons.
Sound reasonable?
Sound reasonable?
Sounds reasonable
Crustang to Mustang
Well-known member
Seeing as my expectations have changed, do you still recommend the same turbo? Or is there a junkyard turbo that will fit the build?
A turbocharger with a 52mm compressor inducer is still the size turbocharger you need.
I can't find a turbocharger that size that has been used on a vehicle that you would find in a junkyard nor are there any cheap Chinese units available near that size.
Unless someone else on this forum can find an inexpensive 52mm turbocharger, the BorgWarner S252SX-E is the best choice.
Crustang to Mustang
Well-known member
Thank you so much for the time you've spent answering my questions! It really means a lot!
The turbocharger is the last thing to buy.
Getting the carburetor mounted and working is the first part of this project.
Figure out which carb you need and do the intake manifold modifications and get it running first without the turbocharger.
You will need an air/fuel ratio meter permanently installed to tune the carb along with a manifold vacuum/pressure gauge.
You will also need to install the headers at this time.
Were you considering a Holley 500 cfm two barrel?
Getting the carburetor mounted and working is the first part of this project.
Figure out which carb you need and do the intake manifold modifications and get it running first without the turbocharger.
You will need an air/fuel ratio meter permanently installed to tune the carb along with a manifold vacuum/pressure gauge.
You will also need to install the headers at this time.
Were you considering a Holley 500 cfm two barrel?
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Crustang to Mustang
Well-known member
Yes, I was
I'm assuming you know the steps to convert the Holley 500 for blow through?
Crustang to Mustang
Well-known member
I figured that I could find a YouTube tutorial.
Does this turbo have the correct specs?
Yes, it looks like it will work.
Just don't know for how long with only a 270 degree thrust bearing.
All good quality journal bearing turbochargers use a 360 degree thrust bearing
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The recommendation for a two-barrel carburetor for a turbocharged six is the 350 Holley.
Does10s has a 63 Falcon, Turbocharged 250, C4, 9", Best ET: 10.64@127mph 11/21/14
They ran a 350 Holley before switching to port injected EFI
Does10s has a 63 Falcon, Turbocharged 250, C4, 9", Best ET: 10.64@127mph 11/21/14
They ran a 350 Holley before switching to port injected EFI
We were using a 350 Holley until we went with the Aluminum head and a 450 4bbl Holley.
I never understood the "boost referenced power valve" idea. In normal confuguation the PV is already referenced to the intake manifold. So it'll also already be ready for boost!
There's an open cavity in the main body that goes down thru the base. Just make sure that hole is clear.
The most important thing with running boost thru a Holley. Enlarge the Power Valve Channel Restrictions (PVCRs) in the metering block. They are two little holes (fuel passages) that are behind the PV.
We've been...
I never understood the "boost referenced power valve" idea. In normal confuguation the PV is already referenced to the intake manifold. So it'll also already be ready for boost!
There's an open cavity in the main body that goes down thru the base. Just make sure that hole is clear.
The most important thing with running boost thru a Holley. Enlarge the Power Valve Channel Restrictions (PVCRs) in the metering block. They are two little holes (fuel passages) that are behind the PV.
We've been...
For drag racing only, the carb can be jetted using the main jet.
For street use the Power Valve channels are drilled out so you can run a smaller main jet for cruising, and the power valve circuit can provide the extra fuel under boost.
Typically, the air fuel ratio under boost is around 11.5:1
Cruising can be 14 to 15 for good fuel mileage and minimum carbon deposits in the engine.
The fuel pressure to the carb needs to be boost regulated so the fuel pressure is always 5 to 6 psi above boost pressure at the carburetor.
As an example, if you run 10 psi of boost the fuel pressure should be 10+6 or 16 psi.
An electric fuel pump with a boost referenced pressure regulator does the job.
For street use the Power Valve channels are drilled out so you can run a smaller main jet for cruising, and the power valve circuit can provide the extra fuel under boost.
Typically, the air fuel ratio under boost is around 11.5:1
Cruising can be 14 to 15 for good fuel mileage and minimum carbon deposits in the engine.
The fuel pressure to the carb needs to be boost regulated so the fuel pressure is always 5 to 6 psi above boost pressure at the carburetor.
As an example, if you run 10 psi of boost the fuel pressure should be 10+6 or 16 psi.
An electric fuel pump with a boost referenced pressure regulator does the job.
for Blow-Thru use, adequate Elec fuel pump and the aforementioned' Boost Referenced Bypass Fuel Pressure Regulator is needed with the regulator return line back to the fuel tank. regulators are available made for carb'd forced induction with boost reference carb pressure and fuel injection elec' fuel pump pressures.
www.summitracing.com
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Vac/boost line from carb to regulator adds equal boost pressure to @7lb base carb pressure with boost as needed'. Boost Reference Port added to 7448/350 2300 intake for carb intake horn pressure.
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( Nitryl float, Jet Xtensions, Whistle , BPPV, metering block mods, welded linkage, sealed shaft, choke delete, air horn mod for bowl vent extension tube into charge tube, ports for bowl pressure and PV chamber, a few xtras' , also runs good NA ... )
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here $.02 more from parallel thread:
The 500 CFM Holley 2 Bbl is the Holley 4412 and same carb slightly whittled down is the Holley 7448 350Cfm 2Bbl. .
The big 4412 500 was used on FE engines in trucks and buses mostly.
For Turbo and Supercharger use, there are specific simple mods' can be done on either carb at 'Hangar 18' website. Also the widely available and inexpensive "Boost Pressure Power Valve" for both can provide the solution to enriching under boost that is difficult with most carburetors.
.https://www.hangar18fabrication.com/blowthru.html.
.
have fun
.
. 
Aeromotive 13204 Aeromotive A1000 Carbureted Bypass Fuel Pressure Regulators | Summit Racing
Free Shipping - Aeromotive A1000 Carbureted Bypass Fuel Pressure Regulators with qualifying orders of $109. Shop Fuel Pressure Regulators at Summit Racing.
Vac/boost line from carb to regulator adds equal boost pressure to @7lb base carb pressure with boost as needed'. Boost Reference Port added to 7448/350 2300 intake for carb intake horn pressure.
. . ( Nitryl float, Jet Xtensions, Whistle , BPPV, metering block mods, welded linkage, sealed shaft, choke delete, air horn mod for bowl vent extension tube into charge tube, ports for bowl pressure and PV chamber, a few xtras' , also runs good NA ... )
.
here $.02 more from parallel thread:
The 500 CFM Holley 2 Bbl is the Holley 4412 and same carb slightly whittled down is the Holley 7448 350Cfm 2Bbl. .
The big 4412 500 was used on FE engines in trucks and buses mostly.
For Turbo and Supercharger use, there are specific simple mods' can be done on either carb at 'Hangar 18' website. Also the widely available and inexpensive "Boost Pressure Power Valve" for both can provide the solution to enriching under boost that is difficult with most carburetors.
.https://www.hangar18fabrication.com/blowthru.html.
.
have fun
.
.
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