#featurethis: The Turbo Luxobarge Sleeper

If you look at this photo taken at Boost Logic in Austin, Texas, it looks much like your typical high end tuning shop. You can see a couple Nissan GT-Rs, a pair of Lamborghinis, a Lexus IS300 and even a Datsun 240Z. Among the bunch, however, there is one car though that looks rather out of place a – 1995 Mercury Grand Marquis owned by Speedhunters reader Joey Lopez.

The Grand Marquis is of course the cousin of the Ford Crown Victoria and a perennial favorite of the elderly set in United States. It’s a big soft, cruiser designed to do little else but eat up highway miles in comfort. The car was purchased by his father brand new back in ’95 and Joey spent much of his early driving years behind the wheel of the big Merc. In 2002 the Grand Marquis became “his” officially and being the enthusiast that he is, he began to upgrade the car here and there.

Fast forward to 2009 when Joey was having chat with his friend Marc from Boost Logic as they came back from dinner with a full carload of people. Marc brought up the idea of throwing a turbo on the big sedan and using it to “pull some Mustangs with six people in the car”. Things were about to get crazy.

Not long after that the car was sporting a turbo kit on the original motor, and in the three years since the Mercury has evolved into a serious street sleeper with a built version of Ford’s 4.6 modular motor and a T4 Precision Industries 76mm turbocharger among the hi-po goodies in the engine bay.

Joey says in its current form the car is making right around 500 horsepower at the crank. Not bad for a nearly 20 year old sedan with 210,000 miles on it…

Of course the car also needed some supporting modifications to handle the extra horsepower. Among the upgrades found beneath the stock looking exterior are Bilstein shocks, Addco sway bars, and a built 4R70W transmission with a 3,000 RPM stall converter.

Joey took great care to keep the car looking as stock as possible, and the only visual difference on the outside are the 18″ Ford FR500 wheels. If it was me though, I’d probably stick with the factory 15″ wheels just for kicks…

As you might imagine, Joey has grown quite attached to the Mercury through the many years it’s been in the family. He also owns a Lexus GS300 and a Mazda Miata, but the Grand Marquis is the one he drives the most. With its proven ability to embarrass the owners of many high end performance cars, it’s easy to see why Joey is always reaching for the Mercury keys when he heads out.

Thanks for sharing!

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A 500hp Grand Marquis, I love it...


Marc has done some work on my car. He's a top-notch fabricator and if he did any work on this car it's of very high quality. Sadly I don't think Marc is with Boost Logic anymore.


Looks like a lot of fun! I would stick with the stock wheels for that extra sleeper look, too.


1. Love it. used to own a '98 Interceptor myself - called it Victoria's Secret in a tip of the hat to the giggly gas bottles strapped to that cavernous trunk.
2. what supporting engine mods were done? I know the mid 90s 4.6 mod motors were - crap. Powdered rods, cheap pistons, etc. Is this a "PI" swap or was the bottom end beefed?
3. 1/4 mile times or trap speeds?
4. Cobra brakes "bolt" on with very little modifications. Just sayin.


@NickLodge He works for EMS Powered now.


Here is a short clip of the car accelerating:  http://www.youtube.com/watch?v=0K5P4_MdG84&feature=plcp


That's a 260z up the top Mike. Tsk tsk tsk...
Cool write up, agree about the stock wheels too.


so good, this is the kinda stuff I love


@thriller I still have the stock wheels, I could maybe have them widened which I thought about, just thought these rims looks pretty stock as well.  Most people who see my car say "those are nice wheels", thinking that is probably they most upgraded part of the ride :)
Here's what it looked like on stock wheels at speed :)


this is a non-pi bottom end, with PI heads swapped, forged pistons and rods.  Port and polished heads with stainless steel  valves and manely springs. 
I have not run the car on the latest build, but the last setup ran a 12.9@107, I am thinking this is a 115+mph trap setup.  It pulls very strong up top compared to the old setup.
The cobra brakes bolt up to 98+ years very easily, the 95-97 need the spindles replaced from what I understand.  All in time I guess.


Thanks for the reply.  I'm guessing you've swapped to better gears by now too....and I'm also guessing the car gets BETTER fuel economy now than it did stock :D
Cool build - just get to the yard and get those damn spindles! lol Side note, if you want 4-piston calipers without going bonkers on the Cobra/R brakes, Town Car complete spindles work too. And if memory serves well, that'll get rid of the spacers on the front (for some reason I seem to think the offsets for the 92-01 CV/MGM were different than the 02+ and the Town Cars 98+).
Again. Thumbs up.


Yeah it has 3.73's, gets about 15-18mpg, I cannot keep my foot out of it long enough to do a hyper mile run on it.  I agree on the spindles.  I am trying to just drive it and not mess with it.  I like putting lots of miles on it before I mess with them again.  Right now I got about 4,500 miles since the newest build.  After about 10K I will mess with it some more.


Definitely not bad! Like the video in the comments haha


Great car, but I would also stick with the stock wheels.


I somehow REALLY like this... Hm.