Author Topic: Ed Mabry 71 Jr. Fuel  (Read 3552 times)

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #15 on: May 25, 2018, 08:37:41 PM »
Some more progress. Should be firing up soon.

Offline jeff/21

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Re: Ed Mabry 71 Jr. Fuel
« Reply #16 on: May 26, 2018, 05:40:54 AM »
tell us about your motor looks similiar to the 302 i'm have. but they all look the same on the outside.

Offline coupemerc

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Re: Ed Mabry 71 Jr. Fuel
« Reply #17 on: May 26, 2018, 06:07:56 AM »
Hmmm? Back in April there's a reply that says stack injection is not in the cards right now. Funny how things escalate ;). Nice car...get er done!

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #18 on: May 26, 2018, 08:07:56 AM »
tell us about your motor looks similiar to the 302 i'm have. but they all look the same on the outside.
It's a simple flattop 355. 539/555 lift, 240/246 on a 108 Howards solid cam. Heads are Performer RPM. I will be using a Victor Jr. and carb on gas at first. I'm still looking for a few injection system parts. Trying to find a Hilborn timing cover. 

Offline Roger

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Re: Ed Mabry 71 Jr. Fuel
« Reply #19 on: May 26, 2018, 08:52:55 AM »
It's gettin' there! Will be running before you know it.

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #20 on: June 06, 2018, 06:33:20 PM »
Today was a big day. Fired the engine for the first time. Cranked right up and sounded solid. Oil pressure is a little high. Might have to change spring in the pump when I change the timing cover. Other than that all is great.

Offline Roger

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Re: Ed Mabry 71 Jr. Fuel
« Reply #21 on: June 06, 2018, 07:25:47 PM »
Congrats! Hope you can take it out to the track soon. At least high oil pressure is better than low/no pressure.

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #22 on: June 09, 2018, 03:26:18 PM »
Congrats! Hope you can take it out to the track soon. At least high oil pressure is better than low/no pressure.

The oil pressure was high (100+) at first startup. Now after about 30 minutes of run time it has settled down to 75 @ about 2000rpm and 62 at idle. I think I'll leave it there. I have a few more parts to order this week for the injection system. So it will be going into the car soon.

Offline jeff/21

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Re: Ed Mabry 71 Jr. Fuel
« Reply #23 on: June 10, 2018, 06:47:48 AM »
that is a lot of pressure what are you running for oil. high oil pressure is hard on the dist, and cam gears.

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #24 on: June 10, 2018, 07:09:08 AM »
that is a lot of pressure what are you running for oil. high oil pressure is hard on the dist, and cam gears.

I have 10w30 with ZDDP additive in it now. The filter bypass is plugged. The pump has the highest melling spring in it. I could change it when I pull the pan.

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #25 on: June 11, 2018, 08:44:56 PM »
I have my engine torn down to install the Enderle timing cover. The oil pump has the pink spring which is the most pressure. I'm thinking the green melling spring(49psi) should lower it to around 50psi. I'm thinking this is more inline with what I really need.

Offline Roger

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Re: Ed Mabry 71 Jr. Fuel
« Reply #26 on: June 11, 2018, 09:06:20 PM »
For what it's worth, I agree. 50# is plenty.

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #27 on: June 15, 2018, 02:08:25 PM »
More progress today. Engine is in and squared up. It was more work than it looks like. :)

Thats my son in the pic. I'm a old fart. :)




« Last Edit: June 15, 2018, 02:10:12 PM by opa1 »

Offline Roger

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Re: Ed Mabry 71 Jr. Fuel
« Reply #28 on: June 15, 2018, 05:17:29 PM »
Your digger is looking much closer to heading for the track:) Keep it up old fart!

Offline opa1

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Re: Ed Mabry 71 Jr. Fuel
« Reply #29 on: June 19, 2018, 11:53:32 AM »
I have a question on throttle connections on the Hilborn unit. I'm going to mount the throttle cable on one side of the injector stack and run the cable across to the other shaft for throttle hookup.(between the center of injection)  Where is a good place to put the dual return springs? Mount the return springs on the outside of throttle shaft? I have a morse cable with a spring loaded throttle pedal.


EDIT: I think I figured out a way to do it. Just have to make a bracket to hold the springs.
« Last Edit: June 19, 2018, 01:51:40 PM by opa1 »