BBR's 83GT - turbo 302.... now with EFI!

[Beagle]

Looks like the manifold fairy showed up. Poof! You're a Single Plane!

[BBR]

Haha yeah, I went back to the single plane. I found an intake gasket that would properly seal off the exhaust crossover. Most have a big bell shaped hole that leaves very little gasket sealing material with this particular intake. The one's I got do not have a hole at all.

I went thru the carb today and set it back to the stock-ish calibration.

[BBR]

Whoops. Time out. I gotta back up a step.

As I was working on the carb, I was looking at the metering block gaskets and wondered what kept the idle circuit on the secondary side from feeding fuel all the time. This carb was originally a 2 corner idle carb so the metering block on the secondary side has no idle mixture screws. That prompted me to research the differences between 2 corner idle carbs and 4 corner idle carbs. Apparently there is more to it than I thought. lol. The base plates and main bodies are different. Whodathunk?? So what I have created is a 2 corner idle carb with a 4 corner main body. Probably not an ideal combination because I have no control over the secondary's idle mixture. The 2 corner idle base plates have a wavy channel from the primary side to the secondary idle transfer slots. A 4 corner base plate has these channels blocked to separate the primary side from the secondary. 2 corner main bodies do not have the hole drilled that feeds the idle feed port, 4 corner main bodies do.

I am going to drill and tap the hole to the idle feed port in my 4 corner idle main body in order to block it with a set screw. This should make it work like it is supposed to. i don't know how much of a difference this will make, but at least my mind will be at ease.

These pics are on my original 4777-7 main body.

[BBR]

Mission accomplished. Carb back on, valve covers on and distributor stabbed!

[BBR]

Just add water and gasoline!

[BBR]

First heat cycle complete. Filled it with water, and after a couple of distributor tweaks, it barked to life!

I'll do it again and also set the timing properly. Then we can re-torque the heads and bolt up all the turbo goodies.

[BBR]

Second heat cycle done. Timing set. Everything seems ok. Pulled valve covers and headers while Judd worked on the Durango. Then retorqued the heads. Remflex gaskets should be here today so I can start buttoning it back up. I am about 98% sure I will have to redo my down pipe yet again. Haha.

[Beagle]

weelllll, ya did move the motor an inch so other things would fit gooder right?

[BBR]

Yeah. Normally a down pipe goes back and drops just before the firewall and with the engine 1" back, that was not possible. So I had to drop between the 3 & 4 cyls and wiggle past the kmember. With the engine back in the stock location, because of the shape of the kmember, the gap I was going thru got a lot narrower. So I will just rebuild it to go all the way to the rear and drop down. It will be much simpler, I think and hope.

[Beagle]

THANK YOU for not just turning it up through the hood or a fender.

[DanStokes]

THANK YOU for not just turning it up through the hood or a fender.

HEY!!!! What's wrong with turbo exhaust thru a fender??!!

Dan

[Beagle]

HEY!!!! What's wrong with turbo exhaust thru a fender??!!

Dan

You driving that on the streets these days?

[BBR]

I'm not a fan of front exhaust on street cars at all. I mean guys do all this work building a "street" car then get lazy and just run the exhaust through the hood. I don't mind it on racecars as they don't claim to be anything else.

[BBR]

Choose your battles. Or, fix what you can fix. The Durango is wounded and we needed another car for Judd to drive, so I put the Mustang mostly back together last night and drove it home. Everything went great. I am just running it na right now to get the carb sorted out and running clean so I did not connect the turbo piping. It is stupid rich under accel right not a perfect on cruise. I think part of my issue with this carb is the fact I have the vacuum ports looped. Didn't think much of it but last night after I got home it dawned on me that by looping them, I just created a vacuum leak. lol Manifold vacuum port (below throttle plates) connected to ported vacuum port (above throttle plates).

Down pipe fit with a little massaging from a big hammer.

[BBR]

I went ahead and put the charge pipes on it. They required some reconfiguring because the hood would no longer shut. Moving the engine forward caused that. No biggie though, I had an extra 180 bend I cut to make it all work.