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 Mazda Xedos6 114hp 
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Post Mazda Xedos6 114hp
The mazda xedos 6 model until 1994 produced 114hp.From 94 and after produced 107 hp same as mx3.This is the 114 hp engine.
Image
As you can see the intake manifold is different from B6DE.
So which is the reason of 7 hp gain?Intake design?
If one reason is fuel mapping,is there an option of swapping ecus?

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Last edited by DeadMaker on January 31 2012, 2:23 PM, edited 2 times in total.



January 31 2012, 12:09 PM
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Post Re: Mazda eunos 500 114hp
Even between Escort GT and BP Protege there are minute intake differences that make up the HP difference.

That may be the only difference, and the ECU mapping may change minutely to accommodate it, but one without the other will likely do more harm than good.

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January 31 2012, 1:10 PM
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Post Re: Mazda eunos 500 114hp
Do you have any experience in these motors?
Besides the two differences(intake,ecu)is there anything else that would play a significant role?Different Cams?
It would be great if you can gain some hp by swapping ecu and intake as there are little for this price options in 1.6..

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January 31 2012, 1:46 PM
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Post Re: Mazda eunos 500 114hp
You sure it's from an Eunos 500? That came with an FP motor, an F-series.

Quote:
FP

The 1.8 L (1839 cc) FP is a destroked version of the FS, with an 83 mm bore and 85 mm stroke. It produces 122 hp (91 kW) and 120 ft·lbf (163 N·m). This engine is often incorrectly called the F8, which is the earlier destroked engine based on the FE. The FP enjoys a much better power band vs the FS due to slightly different camshafts and a better rod ratio over the regular FS-DE.

The FP is very close to the FS in many ways and shares a large percentage of parts but has its own FP specific block, crank, rods, pistons and timing belt. The pistons for the FS produce a compression ratio of 9.1:1 (USDM) but when FP pistons are used in the FS they yield 9.7:1 compression ratio.

Applications:
1992–1993 Eunos 500
1997–2001 Mazda Capella
1999–2000 Mazda Protegé (ES models only)
1998-2003 Mazda 323 Astina & Protege (Australia)


If it was a B-series, sounds like it would of been based off the Miata B6, which involves a few more upgrades than ECU and Intake

Quote:
1.6 L (1,597 cc) B6ZE(RS) - (78x83.6 mm) - Developed for the Mazda Miata (1989–93). The engine uses a DOHC 16-valve alloy head with a lightened crankshaft and flywheel to allow a 7,200 rpm redline. An aluminum sump with cooling fins is an unusual feature of this engine. The Japanese version of the engine had a 9.4:1 compression ratio and produced 120 hp (90 kW) and 100 lb·ft (136 N·m).

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January 31 2012, 2:09 PM
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Post Re: Mazda eunos 500 114hp
I had a Ford based BP swap. From an ATX Merc Tracer LTS.

Intake was quiet different than Protege one, and Wiki rates the Ford HP at 127 and Mazda BP at 125. Both used a BP09 or BP10 ECM, depending on ATX or MTX.

As far as I know the cams are the exact same. There is an Exhinake mod floating around on CP, where you hack up an exhaust cam to use it as an intake cam for some decent gains.


But you're talking about the MX-3 B6DE. As far as I'm concerned its the worst MX-3 option... hardest to upgrade.

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January 31 2012, 2:15 PM
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Post Re: Mazda xedos 6 114hp
You are right.It's called mazda xedos 6.The 1.8 version and 2.0 called eunos 500.(Why the hell mazda used so many names..)
http://en.wikipedia.org/wiki/Mazda_Xedos_6
The engine it's from this model.I know it cause my brother has the same car.

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January 31 2012, 2:15 PM
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Post Re: Mazda Xedos6 114hp
oooh, coil on plug. gets me thinking


January 31 2012, 6:56 PM
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Post Re: Mazda Xedos6 114hp
Also, that motor in top pic uses coil packs.... iiinteresting....

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Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
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January 31 2012, 7:02 PM
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Post Re: Mazda Xedos6 114hp
Ryan wrote:
Also, that motor in top pic uses coil packs.... iiinteresting....

I guess that would be the correct term.


January 31 2012, 7:07 PM
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Post Re: Mazda Xedos6 114hp
yea another benefit too..But i don't know how this could be swapped.I mean you would have to deal with ecu..

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January 31 2012, 7:35 PM
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Post Re: Mazda Xedos6 114hp
Its not really the same. You need a way to distribute the spark. Disty just gets one signal at intervals, coilpacks require a signal at the appropriate time to the appropriate coil.

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Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.
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January 31 2012, 7:41 PM
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Post Re: Mazda Xedos6 114hp
in the coilpacks doesn't the signal come from a sensor in the crankshaft?Which goes to the ecu and then the ecu says when each coil needs to fire?Plus you have a stronger spark and less moving parts..
But i don't have a clue or if it is impossible to change the distributor with coilpacks..

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January 31 2012, 7:58 PM
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