Blower Question

[Fordors]

Jets and PV are for sure going to be a subjective issue, I'd say try it as is and evaluate the results. Strictly apples and oranges but I run two 600 Holleys with direct linkage on my OT engine with 68's on the primary side, 65 power valves and secondary metering plates drilled to .093. Just took a stab in the dark and haven't changed it since built; maybe it could be better, but it runs good so I never messed with it.

 

[solidaxle]

Scooder mentioned Roadrunner Engineering. Here's the link. Lots of info http://www.roadrunnerengineering.com/About.html.

 

[jrvariel48]

the crab distributor will retard using the vacuum brake . As boost is applied it will push the brake into the retard position.....nice feature.......run it........

Should I get the vacuum from the intake or from the carb base?

Does it make a difference?

Thanks,
Joe

 

[scooder]

Below the blower so it will sence boost.
Martin.

 

[mustang8]

Ron, could you tell me which unit you use and it's reliability?
Thanks,
Joe

Joe I used a k and n electric fuel pump on my 8ba build a couple years back, don't remember the exact model but it was a very low flow unit.

 

[Bored&Stroked]

I opened up the carb today to see what jets and power valve were installed.
I found 68 jets and a 4.5 power valve.
Joe

What about the secondary side? Or . . . the same on both?

 

[jrvariel48]

What about the secondary side? Or . . . the same on both?

I'm going to look today. I will boost referenced the carb following the direction of this link.

http://www.superchevy.com/how-to/engines-drivetrain/1511-how-to-modify-a-carburetor-for-boost/

 

[jrvariel48]

The secondary side has a metering plate, no jets. From what I've read, it's equal to a 69 jet

 

[jrvariel48]

Joe I used a k and n electric fuel pump on my 8ba build a couple years back, don't remember the exact model but it was a very low flow unit.

Thanks for the info! After some research, I'm going to try a Facet pump with an inertia switch and an on/off switch at the dash.

 

[JSeery]

You can also use an oil pressure switch on the circuit. That will only allow the pump to run when there is oil pressure (there is a built in by-pass for starting). I like the safety of both, this is how almost all modern electric fuel pump systems are connected.

You might find this article interesting: http://www.how-to-build-hotrods.com/electric-fuel-pump.html

 

[jrvariel48]

You can also use an oil pressure switch on the circuit. That will only allow the pump to run went there is oil pressure (there is a built in by-pass for starting). I like the safety of both, this is how almost all modern electric fuel pump systems are connected.

You might find this article interesting: http://www.how-to-build-hotrods.com/electric-fuel-pump.html

Very informative! Thank you

 

[jrvariel48]

And so it begins!

 

[corvette8n]

Looks like a fun project.