Eric F

1.8L & 2.0L 3rd gen owners, I though this was important enough to repost in this section. This kit should apply to us as well as the MP3 and Protege 5 since our engines are essentially the same. If you are interested in the production of this kit, please email Steve and let him know there are Protege owners other than MP3 and Protege 5 owners interested in a turbo kit.



"Hello to all Protege m3 and 5 owners. I am here to introduce may self to to your forum. We currently have in developement turbo kits, exhaust, and many other performance mods for current Protege's. Our experiance of just 3 of the individuals involved is over 50 years. We also have individuals who we are consulting with who have had direct ties to mazda in the past.

I want to emphasize that our interests are as Mazda owners from way back. Our personal cars and collections range fromthe earliest Mazda R-100's, RX2's, RX3's to all of the RX7's, GTX's, Miata's, GLC's and now the Protege 5 and MP3. Some of these cars may be unfamiliar to some but all are wonderful pperformance cars of Mazda's past.

Now lets cut to the chase, what we are doing is developing what you want and need. We know that performance products for Mazda's outside of the RX7 is very limited, but we are in a position to develope and offer what you want. At this time we are looking for input from you the owners of Mazda's most exciting introduction in years.

Please email me at my personal email address stevenrsharp@aol.com and let me know what you want. Leave the following information: Name, address, email address. We need this information to you directly. Also feel free to ask questions about your cars, our experience with the FP and FS engines are extensive.

Please pass my email to all MP3 and Protege 5 owners we need this information to meet your needs"

DJ Slider

I was just thinking, if they make a turbo kit for the FS engine, it should fit fine in the FS-ZE right? Is it possible that we could be looking at pro's with 200+ HP? With the ZE pushin 170 out of the box, and if you slap on a turbo kit, with, lets say a conservative 6-8lbs of boost, it seems the 200 HP mark could be broken. Am I stupid in assuming this? I mean with 200 HP and some sticky wheels us streeters could start eating celicas, eclipses, and integras for lunch! Lemme know if i'm completely wrong.

P.S. Oh, and Eric, man you are the MAN! you are like the resident Pro expert man. Keep up the good work.

TrexPro5

If Im correct you dont want to turbo charge the FS-ZE engine... I *think* the compression is higher... which is not good for forced induction. Im not sure the real diffrences between the two engines... I do know that the cams for the engine are made for higher compression though... oh well... later on...

Eric F

You are correct. The FS-ZE has a stock 10.5:1 compression ratio. That is high for a turbo application, but not impossible to do. You would likely be limited to 6-8 PSI of boost, and would need premium fuel and some means of injecting more fuel and monitoring the air/fuel ratio. A knock sensor would increase safety. 200HP should be achievable fairly easily, with an even bigger benefit in torque. The stock motor might be a better canidate for a turbo because the 9.1:1 compression ratio should be able to handle more boost, and might make more power than a turbocharged FS-ZE.

StuttersC

Just out of curiosity, has anyone heard of this guy??

Are the things he has done to other Mazdas worth mentioning?

It just seems odd that this guy comes out of no where with this...

DJ Slider

are you talking about the stock 1.8 or the stock 2.0, or both? that's interesting, i never knew that compression n the fs-ze was that high. hmmm maybe il hold off on that engine swap until see what a boosted 2.0 can do.
Oh, another question, say the trubo does come out, and i install it, is it always necessary to go ahead and replace the stock injectors, pump, and add an adj. fuel press. reg. ? Or is all that just for safety, overkill?

DJ Slider

yeah, youre right, itll be my daily driver as well, and if im gonna lay down money for a turbo, i can squeeze some more out for a fuel system upgrade as well. Who knows, a lot of the kits for civics, etc... include injectors and fuel pumps, do you have any idea if turbonetics will be doing so as well? From what I understand they just manufacture turbos and manifolds, and other companies accually put the kits together. I wonder how much this kit might run? 2-3k?

eeterp

Eric, that's music to my ears!!!!!! This turbo kit is as good a sold (to me that is). From what I've learned my fs-ze will not see anything above 8psi and maybe not over 6psi! Even so, I'll take it... all the way to the track I figure low boost and a few things such as a fuel pump and metal head gasket will make 6-8psi safe. That SHOULD make the car put 200 hp to the wheels. Right? Oh, and as always GOOD WORK ERIC!

Shawn

What kind of hp would be at the wheels with a turbo'ed stock p5 engine? About 170? Of course the boost matters so what would it be with different boosts?

DJ Slider

dont quote me on this,
im sure Eric knows, but i think i read somewhere its about 10 hp per psi. But you have to take a lot of things into consideration, i mean not just the psi, but the size/quality of the intercooler, the size of the turbo, how you want your power band (more low end with a smaller, faster spooling turbo, or better top-end with a bigger turbo), and youre fuel system like we were discussing earlier. Also, when you start raising the PSI above about 8psi, you have to consider the strength of the engine internals. Hopefully if this guy is good, he can get us a turbo kit thats made well and not just modded from an old civic kit or something.

TrexPro5

if you want to have your 2.0l (FSD) engine to be a daily driver and still turboed... I peronsally feel to be safe you need to redo the internals of the engine... IE new rods and pistons... dished pistons (I think is what they are called) are ideal because the lower compression a great deal. Again I could be wrong but 8.5:1 comperssion is ideal for forced induction. So from the various little things I pick up talking to my friend to have a daily driver that is reliable as ever you need to lower compression... you get it down to 8.5:1 compression I would run about 15-16lbs of pressure. Hopefully pushing about 225+ hp on your 2.0l engine.

DJ Slider

hmm, never heard of dished pistons but that seems right. is that something you can get custom made, because i havent seen anyone selling those for the protege.

TrexPro5

Pretty sure you can goto Crower(sp?) and have some machined along w/ your new cams, rods etc ;-)

DJ Slider

What about the fs-ze, i mean, it seems it would be better to run like 6 psi and you;d probably get about the same power as from a 15psi FSD, and with the low pressure you wouldnt have to worry as much about internals, and the rest. I mean 15psi is a lot on daily drivers. I know a lot of people who race turbo'd civics who wont run 14psi, they say its more trouble, takes more time, than its worth. Like would a turbo'd fs-ze even be a consideration at this point? or is it something that would be too risky to try?

Eric F

The stock compression ratio for both the 1.8L FP and 2.0L FS Protege engines is 9.1:1. That's not much higher than the 8.5:1 compression ration you are referring to. Being that these are relatively new engines, and have never been turbocharged from the factory, it's difficult to tell how strong the stock crank, rods, caps, bolts, and pistons are. Up to 10 to 12psi should be safe in the stock engine if the system incorporates the right equipment, is tuned correctly, and uses high octane gas. A knock sensor with the ability to retard timing should allow even higher boost levels safely. All of this isn't cheap mind you, so applications may be too limited for someone to produce a kit. A simpler kit would be a good place to start to build towards this goal though.
The FS-ZE will probably only be able to run about 6 to 7psi of boost safely because of the high compression. It does depend on the application, but I would guess you may get more power from 12psi on the FS engine than you would with 6psi on the FS-ZE engine. Stock Civics run higher compression than stock Proteges do, so the Protege engine should be able to handle more boost safely, all other things being equal. Of course, we don't really know very much about the stock FP/FS engines internals yet, so it's impossible to say what it can handle yet. There are a few people on the ProbeTalk board running custom turbos on there 2.0L FS engines, but I don't know how much boost their running.