2.0 Ecoboost to RWD, A Brief How-To

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RALLYRS

Just to verify....this was the NC Miata 6-speed(normally stock bolts to a 2.0 Mazda MZR/Duratec)
6-speed trans that went KABOOM whilst mated to the swapped in ecoboost?

Yep. Stock NC 6spd gearbox.

http://www.autoblog.com/tag/project+ugly+horse/

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I would rather drive a slow car fast as a fast car slow!
first rule of cars: get what makes you happy, your the one paying for it!

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tdrrally
http://www.autoblog.com/tag/project+ugly+horse/

That's where we got the idea for the NC trans initially.

that is where i got the idea to rally a fox body mustang

so many engine options

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I would rather drive a slow car fast as a fast car slow!
first rule of cars: get what makes you happy, your the one paying for it!

So, er, moving right along...

Is there any reason why a Ranger oil pan would not be workable with the Ecoboost? I do understand that it requires eliminating the balance shafts.

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.

The balance shaft assembly weight something like 17lbs! I definitely took it off.
I skipped the ranger pan because it was cast aluminum, but it should work just fine.
Retro-Ford has a steel rear sump duratec pan, but it's $$$.

Good to know. I am probably going to be picking up a core Ranger engine shortly. The engine itself is FUBAR but the RWD-specific parts should be salvageable.

The downside is, it looks like for only a little more outlay relative to an Ecoboost + controls pack + turbo-specific necessities, one could build a really kickass 2.4l motor. 2.5 block, 2.3 crank, 2.0 direct injected head (apparently this is the best Duratec starting point), decent rods/pistons/cams, the usual intake and exhaust requirements, 330+hp naturally aspirated at sane RPM. No need for porting or valvesprings or other such expenses, either.

Well, I gots TWO RX-7s now, and I could source the 2.5 block from a Mazda 6 so I could claim it is a Mazda engine...

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.



Edited 1 time(s). Last edit at 03/04/2017 02:31PM by Pete.

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Pete
I could source the 2.5 block from a Mazda 6 so I could claim it is a Mazda engine...

Is that still a requirement for anybody? I thought it was taken out a few years ago.

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fliz

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Pete
I could source the 2.5 block from a Mazda 6 so I could claim it is a Mazda engine...

Is that still a requirement for anybody? I thought it was taken out a few years ago.

Gotta get that Mazda contingency money yo!

Exactly, assuming that the windshield crack rule gets rescinded.

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.

I know the 2L NA version anyway has FoMoCo cast into it so I can't imagine anyone could identify a Mazda 3 2.5 vs a Ford Fusion 2.5 block.

The Mazda 6 engines seem to be cheaper, probably because the super cramped engine bay means they always have broken intake manifolds and timing covers.

You ain't seen "fun" until you seen a 3.7l Mazda 6, either. I don't think you could fit a finger between the timing case and the strut tower. Step 1 in replacing the water pump, or almost anything else, is "Remove drivetrain from vehicle."

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.



Edited 1 time(s). Last edit at 03/05/2017 12:26PM by Pete.

Quote
mekilljoydammit
I know the 2L NA version anyway has FoMoCo cast into it so I can't imagine anyone could identify a Mazda 3 2.5 vs a Ford Fusion 2.5 block.

There's Volvo bits on the ecoboost as well.

Like what? Do tell!

I wasn't aware that Volvo had anything at all to do with FoMoCo enginery. Mazda made the fours, Ford made the sixes, and Volvo made the chassis.

I thought, anyway...

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.

Doesn't the Volvo 2.5L T5 share some with the Duratec??? Or the Duratec derived from some of it???

A quick googler... Wiki

The B5254T3 is a 2.5 L (2,522 cc) straight-five. Bore is 83 mm (3.3 in) and stroke is 93.2 mm (3.7 in) with a compression ratio of 9.0:1. It is turbocharged and intercooled with a power output of 220 PS (162 kW; 217 hp) at 5000 rpm with 320 N·m (240 lb·ft) of torque at 1500–4800 rpm. On cars with the AW55-51 automatic transmission, torque is limited in first and second gear.[131] It has VVT and uses the Bosch ME 9.0[132] engine management system.[133] Unlike previous designs, the turbocharger is integral with the exhaust manifold.

Adaptations of this engine were used by Ford, with power levels ranging from 220PS (217 bhp)[134] to 350PS (345 bhp).[135] At Ford the engine was called "Duratec-ST",[136] "Duratec ST"[137] or "Duratec RS".[138]

Applications:[139]

2005–2008 Volvo S40 II[104] badged as S40 T5
2005–2008 Volvo V50[104][140] badged as V50 T5
2007 Volvo C30 badged as C30 T5
2006[141]–2007[142] Volvo C70 badged as C70 T5
2005[143]–2011 Ford Focus[132] badged as Focus ST[144]
2009[145]–2010[146] Ford Focus badged as Focus RS[145]
2011 Ford Focus badged as Focus RS 500[135]