TTAC Project Car: Sacrifice to The Sierra Gods!

Sajeev Mehta
by Sajeev Mehta

Merkur? ZOMG SANJEEV Y U NO LS1-FTW?

No surprise, the auto journo that insists on everything LS-swapped is actually a big ol’ fraud. Do as he says, not as he does with TTAC’s Project Car — a 1983 Ford Sierra Ghia previously reviewed with the promise of more to come.

Promises: kept.

After scouring the interwebs, reading about the Sierra’s factory shortcomings and applying a modicum of common sense, the ultimate in Chevrolet LS-performance was beyond my financial scope and my intentions for a Mk1 Sierra. Stuffing 10 pounds of shit into a 5-pound bag, no matter the ability to make the baddest, brown, 5-door hatch on the planet, wasn’t in the cards.

Then a 1988 Thunderbird Turbo Coupe arrived via phone call. Bought by my friend ( and infamous LeMons racer) Brian Pollock as a rust-free restomod worthy of a good home, he parted it out to feed his racing addiction. True to form, he made a quick buck off me with its valuable Fox Body parts, but our conversation soon regressed to the Sierra-worthy goodies: the turbocharged 2.3-liter mill, EEC-IV fuel injection , T-5 gearbox (a la Sierra Cosworth), the largest injectors/camshaft/manifold/ VAM of its breed, rear disc brakes and even a serpentine accessory belt drive. It was all mine for $700, with Brian’s commitment to be the craftsman behind this madness.

Then another LeMons racer offered the running, restorable 1988 Merkur XR4ti (American Sierra to you noobs) seen in this article’s introduction. Sure, the motor’s hurt, but it rounds out the Sierra’s Ford-ification: a drop-in EFI wiring harness/fuel system/clutch, bigger (front) brakes, firmer springs, fatter anti-sway bars, stronger 7.5-inch differential and countless interior bits including a boost gauge.

$600? Sold! There’s even my favorite 2.3-liter aluminum cam cover with complimentary mud dauber nest:

Shockingly, the Merkur’s hurt motor fired up on first attempt after a 2+ year slumber. Once the amazement subsided (terrible quality YouTube video remains), the notion of driving a parts car certainly beats pushing the damn thing.

For the price of an LS1 take-out motor, my path to being a complete fraud — a two-faced bastard of massive proportions — was complete. Plus, I enjoy slamming performance Ford parts in Ford products where they do not belong. It’s been my shtick with non-Mustang Fox Bodies since 1999.

Necessary Aside: Behold the amazing parts interchangeability of (disturbingly comfortable) Turbo Coupe seats in Brian’s Ford truck. It’s also a 5-speed Fummins conversion, garnering attention from the tow-savvy among the B&B in our last article, effortlessly yanking the Merkur, T-bird and the Sierra around Texas. Aside from the color clash, this embodies everything I wanted to share in this update.

That’s a very handy book to find in the back seat of your Merkur parts car. I bet I can get $50 for it when I’m done with the swap. So what’s next for TTAC’s Ford Sierra?

The Turbo Coupe is stripped; of no further use to anyone but China. It’ll be scrap metal by the time you read this.

The Merkur isn’t long for this world, but the sacrificial lamb’s pain is pure pleasure to The Sierra Gods. I suspect we’re swapping subframes (for that stiffer suspension and big differential), grabbing fuel, drivetrain and EFI wiring bits in the coming months. And since its rust free, maybe I’ll sawzall off the rocker panels as the Sierra is a tad rusty-crusty after those hard UK winters.

Most of this is on Brian’s plate, but me? I’m ensuring the Merkur’s computer accepts a tune like the (better) unit salvaged from the Turbo Coupe, with input from my SCT tuner friend. Perhaps intake, exhaust and camshaft upgrades are in the mix. You never know!

I’m also geeking out over the Merkur’s factory boost gauge via installation into the Sierra’s cluster. Not a direct drop in, as the right-hand-drive Sierra puts the speedometer (and cable) on the wrong side of the assembly.

Nothing I can’t handle.

What other roadblocks shall TTAC’s project encounter? Until next time!







Sajeev Mehta
Sajeev Mehta

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  • EAF EAF on Jul 30, 2015

    First mod: front mounted intercooler! Very cool project car.

  • STS_Endeavour STS_Endeavour on Aug 11, 2015

    A groovy story! I'm happy the Merkur is getting some deserved love. I'd be hard-pressed to make a decision to save a Mercur vs a Thunderbird. Because... Thunderbird!!!

  • Ronin The very asking of the question "Are Plug-In Hybrids the Future?" is an interesting one. Because just 2 or 3 years ago we'd be asking- no, asserting- that E cars are the future. We're no longer asking that question.
  • Peter Benn There apparently were some K-code 4-dr sedan Fairlanes. Collectible Automobile Apr 2024 has found a '63 500 with HD 3/spd.
  • Mia Hey there!I recently stumbled upon the Crack Eraser DIY Windshield Repair Kit (check it out here: https://crackeraser.com/collections/diy-windshield-repair-kits) and decided to give it a shot on a small chip in my windshield. I have to say, it worked like a charm! Super easy to use, and it saved me a trip to the professionals. If you're dealing with a similar issue, this kit is definitely worth considering. 😊
  • Rust-MyEnemy Whoa, what the hell is wrong with Jalop1991 and his condescension? It's as if he's employed by Big Plug-In or something."I've seen plenty of your types on the forums....."Dunno what that means, but I'm not dead keen on being regarded as "A type" by a complete stranger"" I'm guessing you've never actually calculated by hand the miles you've driven against the quantity of gas used--which is your actual miles per gallon."Guess again. Why the hell would you even say that? Yes, I worked it out. Fill-to-fill, based on gas station receipts. And it showed me that a Vauxhall Astra PHEV, starting out with a fully charged PHEV battery, in Hybrid mode, on my long (234-mile) daily motorway daily commute, never, over several months, ever matched or beat the economy of the regular hybrid Honda Civic that I ran for a similar amount of time (circa 5000 miles)."You don't use gasoline at all for 30-40 miles as you use exclusively battery power, then your vehicle is a pure hybrid. Over 234 miles, you will have used whatever gas the engine used for 200 of those miles."At least you're right on that. In hybrid mode, though, the Astra was using battery power when it wasn't at all appropriate. The petrol engine very rarely chimed in when battery power was on tap, and as a result, the EV-mode range quickly disappeared. The regular hybrid Civic, though, deployed its very small electric reserves (which are used up quickly but restore themselves promptly), much more wisely. Such as when on a trailing throttle or on a downward grade, or when in stop-start traffic. As a result, at the end of my 234 miles, the Civic had used less gas than the Astra. Moreover, I hadn't had to pay for the electricity in its battery.I look forward to you arguing that what actually happened isn't what actually happened, but I was there and you were not."Regardless, that you don't understand it appears not to have stopped you from pontificating on it. Please, do us all a favor--don't vote."You really are quite unpleasant, aren't you. But thanks for the advice.
  • Tassos Jong-iL Electric vehicles are mandated by 2020 in One Korea. We are ahead of the time.
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