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#3320129 - 08/15/16 02:55 AM 70mm Throttle Body swap
B1GBlackV1C Offline
Rookie

Registered: 06/22/15
Posts: 73
Loc: HTX
I have a question about swapping a larger throttle body into my engine.

I have an '05, the first year to use the newer "Throttle By Wire" setup. To my understanding, it uses an electronic throttle position sensor to open and close the butterfly valve inside the TB instead of the traditional throttle cable.

According to the research I've done, there's a direct 70mm TB swap from the 4.6L used on the F-150 and E-150 truck engines, but they use a throttle cable. However, I haven't found anything for my TBW setup.

I don't want to spend a lot of money with a fancy aftermarket one; I might just shell out for a used TB on eBay.

Is there a 70mm TB that Ford makes that will be a direct fit for my engine using TBW? Will I have to get a tune, or will the engine re-learn the new TB automatically?

Also, my car has 3.55 gears and Trac-Lock (according to VIN decoder). Will the 70mm affect low-end performance or just give the engine more high-end power? I'm looking for improved 0-60 or better highway pull.

Also, if you don't mind, check this other post I made: http://alturl.com/jqu96
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2011 Crown Victoria P72 - "Austin" - retired ATX DPS cruiser

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#3320329 - 08/15/16 11:46 AM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
Pyroguyftw Offline
Member

Registered: 02/17/15
Posts: 157
Loc: Pennsylvania
I recently-ish did mine, albeit with a 75mm, and on an aftermarket elbow. The F-150s from 2006+ IIRC are DBW, and it will fit with a little friendly coercion with a drill on the stock piece. If you go with an aftermarket plenum (which I highly recommend) it will require some not so friendly coercion,but is very worth it.
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96 Trans Am
Performance: H/C/I 350, making about 480hp
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#3320449 - 08/15/16 02:20 PM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
Wraith Offline
n00b

Registered: 09/19/13
Posts: 18
Loc: Texas
I did the 75mm off an f-150 (E-bay) with an aftermarket elbow also. I didnt seem to lose any low end. Gained power in the upper rpm is what it seems and i have 2.73's with and open rear end. I did not have to get a tune for it.
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2007 MGM. Catback Magnaflow resonated xpipe, Addco rear bar, AFE intake, F150 throttle body, Trickflow 75mm upper plenum, TrickFlow Underdrive pullies, Canned Diablo tune.

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#3320537 - 08/15/16 03:58 PM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
Pyroguyftw Offline
Member

Registered: 02/17/15
Posts: 157
Loc: Pennsylvania
Seconded on the low end being the same. I didn't notice much gain at the top, although I did do the MZT not long after and with the 2.73s it feels like a turbocharged land barge that goes from no boost to full boost at 3k.
_________________________
96 Trans Am
Performance: H/C/I 350, making about 480hp
Appearance: matte black accents, door trim delete, widest tires that'll fit

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#4000644 - 01/11/19 10:48 AM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
ClayBelt Offline

Over the Hill

Registered: 04/03/18
Posts: 1741
Loc: Leon County
I get that this thread hasn’t been touched in 2 years, but Im adding information. The Lincoln LS with the V8 has a 70 mm throttle body that works well. I had to drill holes to mate it to the stock plenum, and mounted it upside down to work the way I wanted it, but the end result was a cheap 70mm for the 05+ panthers.
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There’s a right way, a wrong way, and a janky way to fix something; I don’t usually have the brains or the money to pick the right way.

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#4000656 - 01/11/19 01:49 PM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
2011CVLX Offline
Member

Registered: 10/24/17
Posts: 146
Loc: Marion County, FL
BBK makes a 75mm that will bolt right up. i think its the 1758


Edited by 2011CVLX (01/11/19 01:52 PM)
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02 LX Sport 166k miles still original
1998 Chevy K1500 Suburban, Whipple supercharger, Mesa headers, Gibson cat-back exhaust, 215k miles (currently in a coma)


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#4000672 - 01/11/19 06:21 PM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
Bondfreak13 Offline

Over the Hill

Registered: 12/15/05
Posts: 4613
Loc: Ventura County, CA.
Has anyone checked the size of the 5.4 E-series vans? They also went DBW in 05.


Edited by Bondfreak13 (01/11/19 06:22 PM)
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2000 Crown Vic.

Intelligence is knowing that a tomato is a fruit, Wisdom is knowing not use a tomato in a fruit salad.

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#4000784 - 01/12/19 04:39 PM Re: 70mm Throttle Body swap [Re: Bondfreak13]
2004_p71 Online   content

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15777
Loc: Quebec Canada
Originally Posted By Bondfreak13
Has anyone checked the size of the 5.4 E-series vans? They also went DBW in 05.

I got a couple of them but the bolt pattern needs to be matched with the plenum...simple procedure.
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#4001004 - 01/14/19 09:05 PM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
Goodolboy85 Offline
n00b

Registered: 03/24/18
Posts: 21
Loc: Asheville NC
Chris at ADTR told me the BBK 75mm doesn’t make much difference with basic bolt ons. Lots of money with little to no gain. That’s why he stopped selling them. I was going to order one when I did all my mods but after talking with him, decided against it.
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#4001080 - 01/15/19 08:03 PM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
2004_p71 Online   content

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15777
Loc: Quebec Canada
^^^agree
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Best time 13.079 @ 105 1.8 60'
comming back this fall

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#4100182 - 03/03/21 02:50 AM Re: 70mm Throttle Body swap [Re: B1GBlackV1C]
FR3AK Offline
Stranger

Registered: 07/12/20
Posts: 2
Loc: United States
I'm new here and just got a 2010 crown vic p7b and .you question is what throttle body can I use to upgrade my car that I can pick up at a salvage yard or not to pricey online im a single father so I can't afford to get summit or bbk but iv seen so many different answers im just wondering if someone can tell me what cars or a part number or something that will line up without any modification thank yall in advance for any help
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