Steve-More RR Info...And A New Question

[Scoobum]

Thanks Steve. Will do some research on it. Will post up when the regulator arrives. Hopefully it solves the voltage issue...and then deal with the carb. One disaster at a time.

[Steve Wood]

be sure he has a fuel pressure regulator on the car and set to 6 psi as I suggested

[Scoobum]

be sure he has a fuel pressure regulator on the car and set to 6 psi as I suggested

I went back and checked the video and the AFPR is under the hood...purple in color...if that helps in identifying the brand. The fuel pressure gauge is in car. I'll set it to 6 if it isn't at that. Regulator is suppose to arrive Friday from Summit. It's shod with M and H 275/60/15 DR's. Any direction for pressure to run 'em at?

[Steve Wood]

no...I would say google is your friend as well as anyone at the track running them.

If I guessed, I might start at 16

[nocooler]

16 cold should be a good start. I'd expect 18-20 hot to work just fine. Set them @ 30psi before you two duke it out!

[Scoobum]

Thanks guys...we'll try 16. Dan blew his back out. I may get the call. If that's the case, I'll ease it off the line...and lay into the whore.

[Scoobum]

Was informed fuel pressure is at 3. Weather is nice...gonna call him to remind him to adjust to 6-7. Busy renovating my kitchen...and he lives 45 minutes away.

[Steve Wood]

assuming the guage is right, that is low.  good luck on the kitchen

On a QF carb, the fuel level should be the middle of the window and not at the bottom of the hole like a Holley

[Scoobum]

Texted him today. He's adjusting the fuel pressure Tuesday and installing the new regulator. We'll try it at Armdrop Saturday. Finishing up the baseboarding. Had a young lad install the ceramic floor. New shingles being installed in the next couple weeks. It's a 1 and half story house...pitch is insane. Having a kid do it. I ain't gettin' up there.

[Scoobum]

New regulator is holding the voltage at 13...depending on how accurate the gauge is. One of the Mopar guys is bringing a known good fuel pressure gauge to set the fuel pressure at Armdrop on Saturday.

[Steve Wood]

Voltage should higher than that

[Scoobum]

I agree Steve. I'm wondering how accurate the in car voltmeter is. Will check it from the back of the alternator tomorrow. This is Kevin Pelletiers car. He's a Mopar guy through and through. I got Dan to contact him via FB...and we'll meet up with him at Armdrop tomorrow. Kevin's gonna set the fuel pressure and set the carb up. There's an older gent that's a carb wizard...and he'll be there tomorrow as well. I'll report back tomorrow nite on how things went.

[Steve Wood]

nothing beats on hand experience!

Checking the voltage at the alternator vs another point is very useful.  These old alternators are pretty crude in my opinion.  They use a double field hook up to measure voltage drop and then try to correct for voltage loss.  Usually that creates a high voltage instead of a low.  It may be that the alternator itself is bad...and as we know, low voltage can cause an electric fuel pump to pump less than it should.

Some use a modern Denso alternator but you have to get the bracket right and in some positions, the post is almost touching the head.

[Scoobum]

Got a text from Dan saying the volts are 14...but drop to 13 when he kicks the fan(s) on. He has a manual switch. Those fan(s) must be drawing a crapload of amps. 12 to 1 compression... engine tightens when it warms up...starter close to the headers. After a run, that battery would have to be at its peak to crank that thing over. That alternator must be working like a whore to keep up with the demand when those fan(s) are on.

[Steve Wood]

That alternator is probably only 39 amps.you know your next project