N/A or Turbo

[Concept P5]

what about gas milage? isnt N/A gonna kill it

 

[peter]

actually, it's quite the contrary, depending on how your state of tune is (for N/A).

a well-tuned N/A engine will actually get better gas mileage than stock, provided your foot isn't on the floor the whole time.

peter

 

[chdesign]

A turbo will get worse gas mileage at least from my experience as it is forcing more air in and with that you need to use more fuel. Whereas you can take the amount of fuel you are using now and use it more effieciently.

 

[RotaryTempest]

Where can I find a turbo kit for the protege5?

 

[LinuxRacr]

Where can I find a turbo kit for the protege5?

Try BEGI :

Bell Engineering

This shows the one for the MP3, but the same guy (Corky Bell) built one for a member of this site (WShade) for a P5.

 

[RotaryTempest]

Right on, I might have to get ahold of him... I want an easy bolt on to get some HP out of the engine, without using cheater gas(NOS) . I don't plan on putting too much money into this car (racing seats, stereo, lowering kit, rims, some minor engine work) since it is going to be my daily driver.

 

[slowyellowp5]

Everyones forgetting (I think) to mention that F/I cars usually have more post-installation work. N/A cars are usually more of a "do it and your done" type of deal as long as you plan and build right. Turbos are much more sensitive pieces of equipment..oh and uh no one-eyeing a boost gauge every time you run hard either...

Oh well, I'm still going turbo

 

[Antoine]

I think one of the main factors in NA setup is when you raise the compression and the engine takes on a "high-strung" nature...

I believe the s2000 is a good example of a "high-strung" 4 cylinder setup...which some believe is less drivable than the boxster or the new z. I've been in an s2000 and its like a motorcycle with 4 wheels...rev rev rev and beyond...

I believe larger displacement engines respond better and are more drivable when modified the NA route...aka 6 to 12 cylinder engines.

chdesign...hows your setup going?

 

[Patio]

in conclusion

as fast and "reliable" as you could go with an N/A motor, with this motor? you could go even faster with a turbo

 

[chdesign]

chdesign...hows your setup going?

Its coming along quite nicely. I'm installing the cams and cam gears tomorrow so I should have some pics up by the weekend of the cut valve cover and the cam gears installed...as far as teh pistons go i'm trying to tie up a few things like a guy that bought my head gasket instead of paying me the only he owed me so I'm waiting on that and about 250 bucks for my rings and rod bearings. I don't really need to replace teh rod bearings but since its apart i'm going to go ahead and be on the safe side and put new ones in. I'm still waiting on the HP header to be released...I was going to go with the AWR header but I don't want to do as much modification to it as needed. And as far as control....right now its looking dim....I may have to settle with jsut Air/Fuel control with a S-AFC and yes they do work I installed one in my friends 99 ES and it proved a 8 hp gain on the dyno in Charolotte at GMP. Timing is going to be my issue....I believe the point where it is at now will suit me just fine as I am goign to run pump gas and at that compression 93 octane should be a perfect combo....oh yeah and our knock sensor does actually work It does actually retard timing upon knock unlike some knock sensors which take a second or two to respond.

 

[peter]

I think one of the main factors in NA setup is when you raise the compression and the engine takes on a "high-strung" nature...
I believe the s2000 is a good example of a "high-strung" 4 cylinder setup...which some believe is less drivable than the boxster or the new z. I've been in an s2000 and its like a motorcycle with 4 wheels...rev rev rev and beyond...

yeah, it's like that, but it all depends on the driver, really . . . personally, i like the high-strung (i.e., honda's B-series VTECs) feeling. i plan on the mazdaspeed 10.7:1 pistons and a thinner head gasket for my P5.

i've had some high-compression cars (last one was an integra type R . . . 10.6:1 IIRC), and they are totally daily-drivable. it's all about being smooth.

hehe...

peter

 

[Kooldino]

yeah, it's like that, but it all depends on the driver, really . . . personally, i like the high-strung (i.e., honda's B-series VTECs) feeling. i plan on the mazdaspeed 10.7:1 pistons and a thinner head gasket for my P5.

i've had some high-compression cars (last one was an integra type R . . . 10.6:1 IIRC), and they are totally daily-drivable. it's all about being smooth.

hehe...

peter

Thinner head gasket AND higher compression pistons? Eek, good luck. Make sure you upgrade your CPU or else you won't see good gains.

 

[peter]

well . . . an apexi S-AFC would be installed, too.

peter

 

[chdesign]

Update on my cars status. Its sitting at the shop with a broken timing belt. I found out that my belt was fraying as it was when i took off the valve cover. But the cams are in and the cam gears are on and the valve cover is cut to allow for adjustment on the gears. Let me tell you the saw zaw ate through that valve cover like it was butter. But anyways. I tried the timing belt for the 2.0 but it is two teeth longer than the 1.8L belt for some reason i guess the tensioner changed. SO I have to go to Mazda on monday and hope and pray to god that they have one in stock. If not then I will be waiting another couple days before its back on the road. Oh well.

 

[eMKay]

heh, right on... an LSD would seriously be needed . . . hell, it's needed on the stock P5...

i get your point, though. funny, though, how subaru gives you an SCCA membership when you buy a WRX, but if you actually use it, heh, guess what?
:bs:

SOA is a bunch of idiots anyway.

let's hope MOA is better.

peter

Subaru does give you an SCCA membership and they encourage you to use it, they will not void your warranty if the car breaks during and event. They will void it for things like overevving, or being plain stupid.

BMW is another company I have autocross experience with, they also encourage racing and will not void your warranty. The latest M3 has about 1000 cars out there with slightly out of spec engine bearings, BMW knows it and M3 owners know it. BMW's stance is that under normal use there should not be a problem ever, but under racing conditions the engine can fail, and over 200 of them have failed. BMW has replaced every one so far with a few exceptions. Those being overreving.

 

[Antoine]

out of spec engine bearings

I believe someone had posted about m3 engines failing...interesting. Whats up with out of spec bearings? People don't buy m3's for "normal" use anyway...I thought those engines were solid...is BMW slacking or being over confident?

On paper that new M3 engine seems a bit high-strung for a production street car.

 

[eMKay]

I believe someone had posted about m3 engines failing...interesting. Whats up with out of spec bearings? People don't buy m3's for "normal" use anyway...I thought those engines were solid...is BMW slacking or being over confident?

On paper that new M3 engine seems a bit high-strung for a production street car.

It was a bad batch from one of their suppliers, or so BMW says.

 

[blynzoo]

Let me tell you the saw zaw ate through that valve cover like it was butter.

lol...i used to call it that too. It's "saws all," no one ever pronounces it right.
Just giving you a hard time

 

[blynzoo]

On paper that new M3 engine seems a bit high-strung for a production street car.

Ohhhhhhh yeahhhhhh. High strung is gooooood. It's totally sweet to drive in. My friend has one. My GOD, that thing is pure sex. It pulls like it's got rockets attached. I'd marry it, if my mother wouldn't be so dissapointed about me marrying a car instead of a good catholic girl.

 

[big_ben]

On paper that new M3 engine seems a bit high-strung for a production street car.

Yeah, the M3 has always been a race ready street car. It has been like that since the 80's. It is my dream car, I would give up my left nut for one,.....really.