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Go Back   ClassicBroncos.com Forums > 66-77 Ford Bronco > Bronco Tech

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Old 12/10/17, 11:45 PM   #31
73azbronco
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Aridzona
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Bingo, eye on that one as well. Just waiting for them to go a few more years and come up with the next level.

73 Explorer , 347stroker, NV4500 D20, Quadrajet spreadbore with manual altitude compensation, 4.1 ARB, Moser CTM Currie, 78 FSB disks, 76 Tbird calipers. 3.5 WH suspension lift, 2" Body lift for NV clearance.

Build here:http://classicbroncos.com/forums/sho...69#post1759569
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Old 12/11/17, 08:50 AM   #32
Bart
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Quote:
Originally Posted by Crush View Post
how does the gm tbi install? can you run duraspark with it? does it control timing? tell us more. LOL!
The GM is a 3 bolt throttle body for a 2 barrel manifold so there's an adapter involved. Low pressure fuel pressure (15-19 psi) so that helps with the need for high pressure fuel lines. I ran the return back to the tank vent. 4 sensors, MAP (manifold absolute pressure), O2, coolant temp, and TPS (throttle position). A guy could buy a 95 or older(last year of the TBI) pickup, camaro or firebird with a 305 or 350 cubic inch engine for (sometimes) a song. With a filter between the tank and a frame mounted (close to tank) fuel pump. No it doesn't not control timing. Your oem distributor with vacuum advance can continue doing what's it done for many decades. I have an after market spacer between the Throttle body and the air cleaner to clear the distributor but there is a factory spacer out there (somewhere). In all it works quite well. I laid the bronco on the side three times and two of the three I had to turn the engine off as it was still running. Yes, a cut off device is available but if the rig gets bumped hard enough (i.e. bumping a rock) could cause the inersha switch to operate killing the engine. I elected to leave it out of the picture. It kills power to the electric fuel pump. PS it's also good idea to carry a spare pump. I do. I bought a new 23 gallon fuel tank from one of our vendors and there was enough welding slag inside the tank to destroy to pump (hence the pre pump filter). I also don't run a surge tank. The system has never starved the engine for fuel (many times the rig has been going "almost" straight up or straight down). I also NEVER go out for the day without a full tank of fuel (ya never know what's going to happen).

66 w/ TBI 351W, AOD w/super coupe gears, "TRU HI 9" w/Detroit locker & 35 spline axles; 44 OX diff. 5.5" susp lift/1" body lift. 203/205 t-cases new sheet metal floors. 35" MTRs. Best top. Custom built spare tire rack. 5.13 gears.
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Old 12/11/17, 11:57 AM   #33
Crush
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Thanks bart. Might give this a try. U may hear from me again with some qyestions. Lol

76 Special Decore options are undecided it is a bare canvas. 77 Explorer with Special Decore Group, 5.8,M5OD 5 speed, 3.5" rancho lift and 1" wild horses body lift, cut fenders, original 15x36x15 Dick Cepek Fun Country tires and custom early 80's interior.
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Old 12/11/17, 04:00 PM   #34
Bart
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Crush, there are several companies out there that are using this GM format. You may want to look at them. If you want to build your own, try to find a half ton pickup you can buy "cheap" as long at it's intact under the hood. If you follow a schematic you can get a "el cheapo" shop manual that has the schematics in the back of the book. I've cut them out of the book, taken them to someplace like office depot, staples etc and have them blown up to any size you can view better. My prints are the size of building construction prints. Makes 'em easier to read and follow. Fellow free to private message me if I can help.

66 w/ TBI 351W, AOD w/super coupe gears, "TRU HI 9" w/Detroit locker & 35 spline axles; 44 OX diff. 5.5" susp lift/1" body lift. 203/205 t-cases new sheet metal floors. 35" MTRs. Best top. Custom built spare tire rack. 5.13 gears.
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Old 12/12/17, 07:25 AM   #35
michael084
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Santa Rosa Beach, Fl
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That is just way too much money for my application. I can find a whole low mile Explorer engine for way less than that.
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