I ve installed fs-ze intake cam and mazdaspeed exhaust cam into my p5 soon to install 10.5.1 high comp pistons .My question is how much harder can a fs-ze run compared to my fs-de being that it is almost impossible to locate a jap ecu for the fs-ze. I was thinking of getting an fs-ze but why bother if i cant get the proper ecu to make it run at full power. with the stock us p5 ecu It would probably run as hard as my fs-de with hi compression pistons and cams rite. If anyone has done a fs-de to fs-ze swap in your pro useing the stock computer please reply and let me know if it made any big difference. My p5 runs hard with the jap cams i also have a injen CAI and custom 2 1/4 straight pipe from manifold to racing medalion muffler no cats (yes its loud) also a b/m short shifter. I can spank MP3s all day and i havnt even put my 10.5.1 pistons in yet let me know if its worth the swap or should i work the **** out of my fs-de all that money for the fs-ze i could probably make my fs-de faster

 

Once you install the pistons, you basically have the mechanical equivalent of the FS-ZE motor. The US computer won't get as much out of the mechanicals as the Jspec computer, mostly because of the lower redline. If you haven't changed the valve springs, that's probably a good thing. It should make noticeably more power than stock though.

 

when i install my 10.5.1 pistons i plan to get the head ported and polished. The only difference from my fs-de to a fs-ze will be the valve springs and intake manifold i believe since i already have the jap cams rite. would it be worth getting the valve springs and sport 20 intake manifold when im ported and polished. I plan to make the fastest nat asp FS-DZE frankenstein in florida. I just need to get my hands on one of those j-spec ecus. Also going to get fidanza flywheel dual friction clutch and lighter crank pully when i get my tax return

 

where do you get the valve springs? I haven't seen them at Corksport, are they actually there and I am blind? I say stick with the FSDE engine. I've read that the ZE intake mani is hardly different than the DE's. Otherwise you basically have the same engine. That ECU will probably make a big difference. Corksport is taking about eventually making or importing the jspec ECU, so I've read.

 

I hope corksport makes it available so my FS-DZE can really rip when i get on her. You can get the valve springs thru mazda motorsports i think

 

I am wondering if a fs-ce 2.0 will fit in my second gen , cause I am considering stuffing one in there for real
Bruce

 

You do get the springs from mazdamotorsports. They are like $47. Not sure if that is for the set or per spring though.

 

Jesse,

Could you recommend a company that will make very high compression the pistons? Or would it be best for someone to go to a local shop?

 

My brother has done the FS-ZE conversion and is currently speaking with a Company in Australia about burning the FS-ZE specs onto a 1.8 and 2.0 ECU. Nothing has been burned yet, but it is just a matter of time. Patience is the key since the performance yielded will be far beyond what is currently offered in the protege line. The FS-ZE is rated for 168hp and approx. 130+lb/ft of torque. Note also that an intake, exhaust, and the Mazdaspeed header on the protege will add up to a formidable N/A car.

There is another difference between the FS-ZE and the FS-DE, and that is the intake manifold. The FS-ZE has a better intake manifold than the FS-DE, which undoubtedly will yield a nice performance difference.

As far as the stand alone engine managements systems go, apart from being outrageously priced and being beyond most peoples budgets, they aren't something that should be messed with unless you know what the hell your doing. I've often heard of them referred to as stand-a-blown systems. It really depends on your expertise on tuning these things.

 

I would have to agree with RealityX.
The system I'm pushing towards is the Wolf3D EMS. I don't have a url handy. It's a hell of a system. It's a complete system that will run you roughly 1500, which is better than trying to buy all the components of a MSD (or similar) management system. Buying all the components from other manufacturers will run you 3500 and up! You can tune the entire engine using a controller attached to the ecu.
There are a lot of Porsche and RX7 people that run the Wolf3D.

I'll try to find the manufacturer's site and post it here.
An engine like yours deserves more than the stock ecu.


...Actually I found the url after I clicked preview for this post.
Wolf3D EMS

There happens to be a distributor here in SoCal (don't remember exactly where, as I called the rep about month or two before I replaced the engine in my '92, which was six months ago).

They kick ***. :P

That's all I have to say.

 

As you all know, I am installing the FS-ZE engine in my MP3 to replace my scrapped engine. I went by the shop today, and the tech was asking which intake manifold I wanted to put on my FS-ZE. I called Corksport and did some resarch. Appearently the FS-ZE intake manifold has something called Variable Resident Intake System. Correct me if I'm wrong, but this means that there are solenoids on the manifold that control flappers or sliders to variably control the length of the intake runners. Oh.. I just found this:

http://www.geocities.com/negatize/vics.htm

The only problem is that it supposedly will not work on my car until..I don't know. Check it out.

 

won't work until you have the fs-ze ECU probably. I wonder if that manifold would install exactly like our fs-de ones or if there would have to be different wiring. That new VICS function may throw a monkey wrench in to the ease of the install.

 

you guys do know that the 2001+ 2.0 liter proteges have the VICS system, right?

well, it does.

 

Then what is the difference between the FS-ZE intake manifold and FS-DE intake manifold? I'm clueless

 

True, the new FP/FS engines in the 3rd gen Proteges already have the Variable Inertia Charging System, with the dual runner intake manifold. However the FS-ZE intake manifold also incorporates a phlenum to improve throttle response. The intake runners may also be larger than the US intake manifold, no one knows for certain that I've heard of. It's difficult to say how much power the FS-ZE intake manifold will add, if any. The FS-ZE (10.5:1) and MazdaSpeed (10.7:1) pistons certainly will, as will the FS-ZE intake cam, which are both more reasonable priced than the manifold. The MazdaSpeed exhaust cam will probably provide very little additional power, but it's not very expensive, and it's cheap/easy to install while doing the FS-ZE intake cam. The FS-ZE or other aftermarket valve springs will only be of benefit with a reprogrammed ECU or stand alone system. The stock ECU has too low of a rev limit to make use of the stiffer valve springs. Also, the header that Jeremy referred to is one of the items that will make a large difference. More than the FS-ZE intake manilfold, I'd be willing to bet. The FS-ZE engine as installed in Japanese Sports 20's is not equipped with the very restrictive primary cat directly under the cast iron exhaust manifold. Using Racing Beat's intake and header R&D as a reference, I'd guess the biggest power producing parts for the US FP/FS-DE engines would be; headers that replace the primary cat, FS-ZE/MazdaSpeed pistons, FS-ZE intake cam, and a reprogrammed ECU.