J-Spec FS-ZE

[slowyellowp5]

Hehe well I guess that is a little redundant on the subject, but I am really tired and this is my first post on this board so....to the question.

It was always my impression that the J-Spec 2.0 engine was only 170bhp cuz of stuff like cams, exhaust, and higher compression, etc.? Well, I read on protegetech.com about their "feature car" and it says his future plans were dropping the "170hp J-Spec TURBO engine from Corksport"...so is this really really good news or just a little, itty-bitty mistake?

PS: Assuming I'm right and it isn't turbo (I'm borrowing the damn $2'gs off the bank if it is right away) I'm really anxious to put in the intake and exhaust cams from corksport. About that...are they the ever-so-popular J-spec cams featured in the FS-ZE, or are they Mazdaspeed cams? Those are the only two aftermarket ones I know of for our engine so...I'm assuming they are the J-spec ones seeing as it IS corksport........yea I'm going to sleep thanks guys

 

[LinuxRacr]

The intake and exhaust cams are the ones from the FS-ZE. As a FS-ZE engine owner, I need to get mine tuned bcause I do not have any substantial gains as of yet!

 

[chdesign]

Linux the exhaust cam does NOT come from teh FS-ZE. It comes from the Mazdaspeed limited edition protege in Japan yes it used a FS-ZE but it was only used in that car and unless you got one of the 150 engines built then you don't have the exhaust cam. or the 10.7:1 compression you have 10.4:1 and just the intake cam.

 

[LinuxRacr]

Linux the exhaust cam does NOT come from teh FS-ZE. It comes from the Mazdaspeed limited edition protege in Japan yes it used a FS-ZE but it was only used in that car and unless you got one of the 150 engines built then you don't have the exhaust cam. or the 10.7:1 compression you have 10.4:1 and just the intake cam.

Kool. Did not mean to throw out any bad info. You look like you would know.

 

[chdesign]

Just tellin ya man so you don't do the ricer mistake and say you have something you don't and so that you can maybe put that exhaust cam in and see some more gains.

 

[Traveler]

Keep in mind guys, that the J-spec FS-ZE is rated in JAPANESE HP which is calculated differently than it is here. The U.S. equivelant HP numbers are almost right at 160. That's a lot of money to spend for a normally aspirated 30 HP. We can get that on ours with the proper stand alone, the J-spec cams, a header, an intake and a better cat back. Also, we have a compression ration that is better suited to forced induction. I'm already up about 14 HP and 12 lb/ft of torque and I haven't even screwed with the ECU yet. There should be another 5 HP and 5 lb/ft just going to the MP3 spec ECU.

My goal has always been to get 130 hp @ the wheels normally aspirated. I'm going to save up for a stand alone and tune that. That will have the added benefit of my simply needing to go to larger injectors, remapping the fuel and tuning in boost retard when I put a supercharger on.

The supercharger is burning a hole in a box in the shop right now but I don't want to put it on and not have the ability to tune it right. I want finer control than an AIC can give me. So, it's stand alone first, then blower.

 

[70]

I take it you are going with a roots type blower??

Are you going to make your own intake manifold to bolt it on?

 

[Traveler]

I take it you are going with a roots type blower??

Are you going to make your own intake manifold to bolt it on?

Yes, I'm probably going to go supercharged. I've got an Eaton M62 sitting in a box in the shop just waiting to be cleaned up and put on. I'll probably be fabbing a sheet metal intake, but will just spot weld it and then have someone else completely TIG weld it for me. It may be possible to use part of the factory manifold and weld to it. That would make it a lot easier since I wouldn't have to fab injector mounts and the fuel rail attachment points.

 

[70]

Yes, I'm probably going to go supercharged. I've got an Eaton M62 sitting in a box in the shop just waiting to be cleaned up and put on. I'll probably be fabbing a sheet metal intake, but will just spot weld it and then have someone else completely TIG weld it for me. It may be possible to use part of the factory manifold and weld to it. That would make it a lot easier since I wouldn't have to fab injector mounts and the fuel rail attachment points.

Using parts of the stock intake manifold would certainly make it easier. Do you plan on building a box type intake manifold or what?

I've seen a couple of home made intake manifolds for roots type blowers, and if the "box" isn't built and sealed right it can pop once any pressure is applied from the blower.

Sounds cool though, good luck with it. Everything else you've done certainly looks grade A.

 

[Traveler]

Yes, I'm going to just build an open plenum for the blower to bolt to. There is no need to try to 'tune' runner length with a roots style blower. You could run a box that bolts directly to the head and has runners less than an inch long and make power. Positive displacement is a wonderful thing! I'm probably going to try to save several inches of intake runner in and then smooth the inlets of them into a plenum. There's a lot more room between the firewall and the passenger side shock tower than there is on a Ford Probe. I've seen an M62 on a Probe so I know it will fit. I've measured it out and I'll have to move the alternator lower and the power steering lines will have to be pulled back to the shock tower and attached with a bracket. Other than that, it should go right in.

 

[70]

Cool deal...That would be great if it all works out. I'm sure there will plenty of people interested in the intake you make, along with said bracketry to mount a blower.

If you keep this up you'll be making parts in no time.