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ClayBelt’s 2010 Mercury Grand Marquis, “The Douche”
Installed the throttle body today. Had to get an adaptor for the P71 zip tube, opening was too large. Recommend going to a CAI style pipe to the air box if someone did that upgrade.
Odd, when I put the BBK 75mm tb on my '05, the zip tube fit perfect(both the Sport and CVPI). But I do know when others put the Ford 75mm on, the zip tube needed to be enlarged.
LOUD EXHAUST IS FUN! AM I SHOUTING?
1989 Country Squire - Twilight Blue, 347 stroker
2005 Crown Victoria Sport - Black - Stainless Works full exhaust with Borla Pro XS mufflers, BBK 75mm TB, Accufab plenum, CVPI airbox, Heinous control arms, etc...
So the bolt pattern is off, same as the 75mm Ford TB. I'd be concerned with the rubber coupler clamped around a hollow plastic tube in the long term though.
LOUD EXHAUST IS FUN! AM I SHOUTING?
1989 Country Squire - Twilight Blue, 347 stroker
2005 Crown Victoria Sport - Black - Stainless Works full exhaust with Borla Pro XS mufflers, BBK 75mm TB, Accufab plenum, CVPI airbox, Heinous control arms, etc...
So the bolt pattern is off, same as the 75mm Ford TB. I'd be concerned with the rubber coupler clamped around a hollow plastic tube in the long term though.
LOUD EXHAUST IS FUN! AM I SHOUTING?
Yeah, I am too. Will be swapping metal piping eventually, once I have a little cash for it
2010 Mercury Grand Marquis LS “The Douche” - 70mm throttle body, P71 airbox, 21mm rear sway bay, dual exhaust, Dodge rims, 89K and counting. 4/2018-
1966 Ford Thunderbird (390FE) “Fordy McFordface” - engine rebuild No. 3. 11/2016-
RIP 2005 Buick LaCrosse CXS “Jumba” - gone too soon, 229K. 6/2017-2/2018
RIP 2001 Chevrolet Tracker LT “Featherbrick” - gone too late, 156K POS. 6/2016-9/2016.
Sold 2005 Toyota 4Runner SR5 - 198K. 6/2016-4/2018
Yeah. That one is shorter than the rest, I accidentally dropped one in a storm drain. Used the LS bolt instead. I will note that the throttle body has to be mounted upside down, but it works fine that was. Using the LS throttle position sensor and motor though because of it
2010 Mercury Grand Marquis LS “The Douche” - 70mm throttle body, P71 airbox, 21mm rear sway bay, dual exhaust, Dodge rims, 89K and counting. 4/2018-
1966 Ford Thunderbird (390FE) “Fordy McFordface” - engine rebuild No. 3. 11/2016-
RIP 2005 Buick LaCrosse CXS “Jumba” - gone too soon, 229K. 6/2017-2/2018
RIP 2001 Chevrolet Tracker LT “Featherbrick” - gone too late, 156K POS. 6/2016-9/2016.
Sold 2005 Toyota 4Runner SR5 - 198K. 6/2016-4/2018
At least the 'plug-and-play' nature of it makes up for the hassle of messing around with the bolt holes. How well do the bores match between the TB and plenum?
2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
mods: air filter box 'tuba', headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, KYB Gas-A-Just shocks, aluminum driveshaft, ARA3 PCM
The plenum and throttle body match up almost exactly. Was not expected, thought LS would be bigger since it appears the throttle body may have been the basis of the 75mm as well. Took 20 minutes to do it all at least
2010 Mercury Grand Marquis LS “The Douche” - 70mm throttle body, P71 airbox, 21mm rear sway bay, dual exhaust, Dodge rims, 89K and counting. 4/2018-
1966 Ford Thunderbird (390FE) “Fordy McFordface” - engine rebuild No. 3. 11/2016-
RIP 2005 Buick LaCrosse CXS “Jumba” - gone too soon, 229K. 6/2017-2/2018
RIP 2001 Chevrolet Tracker LT “Featherbrick” - gone too late, 156K POS. 6/2016-9/2016.
Sold 2005 Toyota 4Runner SR5 - 198K. 6/2016-4/2018
That actually makes sense to me. The plenums never really changed much other than them not drilling thru the IAC ports, and its well known that the older plenums are 70mm inside diameter. Why all '96+ plenums are 70mm but all '96+ throttle bodies are 65mm, IDK.
-Steve
2006 Audi A6 S-Line FWD ~132k miles, stock. 1998 Mercury Grand Marquis LS HPP ~102k miles, slowly acquiring modifications. 1997 Lincoln Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Mechanical Fan Delete, Contour E-fan Retrofit, Dual exhaust, Cats ran away, KYB Gas-A-Justs, P71 front sway bar, air ride reinstalled, Blinker Mod, Projector headlight retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel, rustbelt diet plan.. 1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12
Not for functionality, I still reap the benefits of throttle response. Gonna get the whole lot tuned once I get some better rear gears though, slowly adding parts until I do. JMOD is next, still not sure if I want to try and find a set of cams due to costs. After that a tune will be in order though
2010 Mercury Grand Marquis LS “The Douche” - 70mm throttle body, P71 airbox, 21mm rear sway bay, dual exhaust, Dodge rims, 89K and counting. 4/2018-
1966 Ford Thunderbird (390FE) “Fordy McFordface” - engine rebuild No. 3. 11/2016-
RIP 2005 Buick LaCrosse CXS “Jumba” - gone too soon, 229K. 6/2017-2/2018
RIP 2001 Chevrolet Tracker LT “Featherbrick” - gone too late, 156K POS. 6/2016-9/2016.
Sold 2005 Toyota 4Runner SR5 - 198K. 6/2016-4/2018
Were you able to use the P71 air filter box/MAF without a tune? BTW, you should set up a signature with your car and mod info. It's one of the settings in your profile.
2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
mods: air filter box 'tuba', headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, KYB Gas-A-Just shocks, aluminum driveshaft, ARA3 PCM
I did use it without a tune, had a lean light at first but removing the ground for a few apparently did the trick. Haven’t had a light since. I do like the way it feels though, butt dyno likes it.
2010 Mercury Grand Marquis LS “The Douche” - 70mm throttle body, P71 airbox, 21mm rear sway bay, dual exhaust, Dodge rims, 89K and counting. 4/2018-
1966 Ford Thunderbird (390FE) “Fordy McFordface” - engine rebuild No. 3. 11/2016-
RIP 2005 Buick LaCrosse CXS “Jumba” - gone too soon, 229K. 6/2017-2/2018
RIP 2001 Chevrolet Tracker LT “Featherbrick” - gone too late, 156K POS. 6/2016-9/2016.
Sold 2005 Toyota 4Runner SR5 - 198K. 6/2016-4/2018
Hmmm, I wonder if later non-CVPI PCMs were given enough tolerance for the larger MAF. One possible way for the cheap people like me to avoid the expense of a custom tune might be to use a CVPI computer whose stock tune is based on the 80mm MAF, though I guess torque converter size and rear gears would be factors.
2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
mods: air filter box 'tuba', headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, KYB Gas-A-Just shocks, aluminum driveshaft, ARA3 PCM
Decided to postpone rear gears until next year, and abandon the silly hood ornament idea for now. Gonna get her tuned for the throttle body, air box, and exhaust with 93 octane
2010 Mercury Grand Marquis LS “The Douche” - 70mm throttle body, P71 airbox, 21mm rear sway bay, dual exhaust, Dodge rims, 89K and counting. 4/2018-
1966 Ford Thunderbird (390FE) “Fordy McFordface” - engine rebuild No. 3. 11/2016-
RIP 2005 Buick LaCrosse CXS “Jumba” - gone too soon, 229K. 6/2017-2/2018
RIP 2001 Chevrolet Tracker LT “Featherbrick” - gone too late, 156K POS. 6/2016-9/2016.
Sold 2005 Toyota 4Runner SR5 - 198K. 6/2016-4/2018
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