1988 TC single Holset turbo 5.0/ 4R70W Reply #15 – May 29, 2009, 02:18:17 PM Sweet resurrection of a TC. I like it. A V-8, yet still technically a TurboCoupe. Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #16 – May 29, 2009, 02:39:10 PM Thanks a lot guys! I have this posted up on Turboforums, but there's so many projects over there it's kind of lost. It really belongs over here.FordTruckFreeek,I can't believe you'd say that after seeing my welding! The turbine housing is so big to house the adjustable sleeve that varies the turbine A/R. My neighbor and I both have one of these turbos. He put his on his Ford 2.3 turbo BMW. That's him holding stuff up in the pics. He has been helping a lot on this. 86T-bird, It's really not just another swap/turbo project since I'm using the largely untried VGT Holset and the electronic transmission. Not to mention keeping the Explorer accessories.b There really is a lot of first-time (I've seen it) engineering.jangus, I am DEFINITELY keeping all the turbocoupe badging as-is. It truly will be a TC still. Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #17 – May 29, 2009, 03:23:13 PM Good things about doing this:1. Turbo was cheap. 150.00 shipped to me, and it looks to have only a few thousand miles.2. 4R70W is latest version of AOD. Supports 450HP stone stock. Overdrive for highway mpg's. 3.8 version bolts right up, including torque converter. Cheap and easy to source.3. Explorer engine already has EDIS wheel, coil packs, 65mm TB, good intake, 130 amp alternator, 134A AC compressor, and correct flywheel.4. Although pipe and v-bands aren't cheap, a turbo and Megasquirt is cheaper to make 450 HP with than trying to get it N/A.5. Fuel system is adequate in stock form with just a 255 lph pump in the tank. I will be making custom lines to go from the lines on the body to the engine.The bad stuff:1. Need aftermarket computer for transmission. $450.00. Still cheaper than a built AOD.2. Weight! Intercooler, pipe, turbo, all add lbs. All in the nose. :(3. Heat! Gotta keep it in check. Pipe wrap and heat shield will be used for that on starter, alternator, etc. I'm going to try to take advantage of the TC hood scoops, too.4. Engine management. I'm a Megasquirt guy, so that's my choice for this project, too. I'll use EDIS spark and brown tops for now. They should see me into the block splitting HP range.5. Complexity. Lots of systems working together, lots of custom wiring. I'm not afraid!6. Custom fab. Every thing is custom. I have to make TB plates so I can flip the intake over to the driver side, custom power steering and AC lines have to be made, custom engine mounts (Thanks, Chuck!), exhaust, transmission shifter, blah, blah, blah. Hope it's worth it in the end. Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #18 – May 29, 2009, 03:39:57 PM Holy exhaust system, Batman!I'm planning a "similar" project on the Scorpio (single on the V6).Looks like a fun project. I wish I had a car-guy neighbor. Then again... Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #19 – May 29, 2009, 04:03:54 PM Quote from: Chuck W;274952Holy exhaust system, Batman!I'm planning a "similar" project on the Scorpio (single on the V6).Looks like a fun project. I wish I had a car-guy neighbor. Then again...The coldside will be MUCH easier. One advantage to a single turbo system over duals. I have the downpipe done to where it'll be just 1/2 day to complete it.The Scorpio should be a cool project. Will the headers swap and/or flip on that engine?Walt is a great neighbor. His young family keeps him busy enough that we don't get as much time together goofing off as we would elsewise. It was 3 years after he moved in before I knew he was a gearhead! Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #20 – May 29, 2009, 08:42:28 PM The crown vics used a drivers side intake. May be able to use some brackets off of that motor. Might save you alittle bit of time. Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #21 – May 29, 2009, 09:14:02 PM Nice project, lots of luck getting her finished... Looking forward to seeing more posts! Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #22 – May 29, 2009, 09:28:38 PM holy . i'm in love.what could of those turbos off of? or is it not a factory item off something? Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #23 – May 29, 2009, 09:36:40 PM Thanks for the info Haystack. I am going to try to use the stock TC throttle cable and cruise control. If I use a 90 degree ell off the intake and angle it down a touch, I will be able to weld on a couple attach points and use stock 2.3 stuff. The Explorer throttle body pulls from the front, so I am going to braze a piece cut from a 2.3 linkage on top of the existing linkage and locate it where I want. The reason is that I have a slew of 2.3 parts here, and will have spares. I have a friend making me two plates that will bolt to the intake and to the throttle body. I'll weld the 3" ell between them.The nice part is it will be a straight, short run into the IC from there. The BOV will locate between the TB and the IC in that run. I'll take pics of the fab when the plates are done (hopefully any day).Thanks, Bob. It helps knowing you guys take an interest. Especially when things seem overwhelming. I've completed big projects before, but I seem to bite off a little more every time!Next on the list will be getting the intake side done, and mounting the NPR IC, Explorer radiator, Taurus fan, and TC AC condenser. I will also be mounting a largish transmission cooler with fan, and a power steering fluid cooler. (I have an old Merkur transmission cooler that looks perfect for the job, so why not?)I also want to paint and wrap the hot side while it is off. Fuel system, subframe connectors and run the rest of the exhaust are near the top, too. Keep the suggestions coming, I appreciate it! Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #24 – May 29, 2009, 10:02:00 PM Quote from: Dougy_Fresh;274998holy . i'm in love.what could of those turbos off of? or is it not a factory item off something?LOL, I think I'm going to love it. I loved my previous two TC's. One 5 speed, one auto that I bought for my daughter. She was just learning to drive, and hated the visibility, so I sold it for her Saturn SL1, which she adores and takes good care of.The turbo is from a 6.7 Dodge spoogemins truck. Walt has done some experimenting with it on his BMW, and it is a strange bird. The 'sweet spot' for the gate is much smaller than we thought. Too tight (where you'd think to get quick spool) and it chokes the engine with backpressure. So much so it's like a car with a clogged cat converter that barely runs. Too loose and the spool is late. When it comes on, however it has a vertical boost build. 30 psi right NOW! He has it set pretty well right now, but the range of acceptable operation is only about .300 travel on the arm! I expect with my 5.0 giving twice the exhaust pulses to work the turbine I'll see somewhat more range, but I see myself locking down the sleeve in one position and tuning fuel and spark maps for whatever that is.Ideally I'd like to experiment with different sleeve positions and graph backpressure at different places. Then fab a device to move the arm between 2 stops so as to be able to select street/strip with the premium switch on the dash, and have two tunes available in megasquirt that go with each. :burnout:That's definitely down the road. First is to just get it running up and down the street this year. Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #25 – November 12, 2009, 08:18:11 AM Hey guys! Just wanted to let you all know where I am right now on this. Had a busy Summer and the project has just been sitting. I got the intake plates cut and in hand, so I'm ready to begin cold side work.I am bringing in all the Tbird parts from the outside lean-to beside the garage so I can get to it this Winter. Once I have the garage re-arranged it's go time! I expect to have it running early next year. Updates to follow... Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #26 – November 12, 2009, 11:23:38 AM Awesome...can't wait to see more pics too :D Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #27 – November 12, 2009, 11:32:16 AM Keep us updated. Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #28 – November 12, 2009, 11:37:39 AM WOW, great project... Guess I better be careful choosing which silver TCs to pick on ... Quote Selected
1988 TC single Holset turbo 5.0/ 4R70W Reply #29 – March 08, 2010, 11:38:49 AM Got back on the TC a little:1. epoxied/strengthened theheater core outlets. Cleaned out heater box and AC evaporator. Heater ready to install.2. Fuel tank cleaned and painted (POR 15) new pump and sock ready to install3. Ran into issues on fuel rail. Stock rail with FPR won't fit under flipped intake. :(Solution was to buy BBK FPR and $150.00 of stainless line and adapters to attach it to the stock rail. Then tap and plug the outlet for the stock FPR.(see attachment for details on some interesting fittings)The BBK (and most universal FPR's) returns from the supply side, so it routes from the FPR back into the body return line.Now to get the subs welded on and install the tank, filter, etc. Then take apart the hotside, paint and wrap it, then on to the rad/IC/condenser, ps cooler and trans cooler mountings. All that needs done before I can fab the cold side.I'm feeling motivated finally to get this running, and have a little time to play this week, so maybe I can get over the hump here. Quote Selected
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