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Not really any real performance upgrades for the 1.5L (that I know of anyway). I put a custom short intake on mine. Throttle response increased a bit, but that's about it besides noise. I did have a CAI, but there were no noticable performance gains so I went back to the short intake.

I have compared them. The JDM "performance" 1.5L (B5-ZE) is 1498cc compared to the US (Z5-DE) 1489cc. The JDM ,obviously, has a larger bore, different camshafts, and different fuel injectors, but the same compression and stroke. The Z5-DE puts our around 92hp and the B5-ZE puts out closer to...

I havnt gotten any parts yet. dont hav any money but i'll be working this summer and just wanted to know where i could get parts. and i didnt know they had different headers for the 1.5L. where'd u get it?

Bump for help.

Thanks for that Matt. They look great. Now I just need some extra spending money. Anyone wanna donate? lol

Yes clearance to pistons. Stock compression I believe is 9.4:1 so maybe 11:1 would be fine, I don't want to go crazy as this will just be a daily driver, but if I can easily get more it would be great. Does anyone have any suggestions for where to get some lightweight crank/rods/pistons for a...

And does anyone know how much space is between the cylinders on the 1.5L Z5? I was thinking of having it bored, but not sure if there's enough room. Thanks.

Okay thanks. So what are some ways to increase the compression? Longer rods? Different pistons? And what about valve clearance? Sorry for all the follow-up questions, I'm new to actual engine work. So far all I've done is an intake.

Simple question really. Should an NA engine be high or low compression? I know everything needs to be lightweight, along with intake and exhaust upgrades. I just need to know about compression. Thanks for the help guys.

Thanks for the info guys. Some of the first paycheck will probably go to the lights and whatever else I need to make them work. Once I get them (not for a while though) I'll post some pics and let you all know how it goes.

Thanks Matt. I've seen that site before, but wasn't sure if it was trustworthy or not. Have you used anything from there or know anyone who has? And the site says I should use a flasher instead of load resistors, but I'm not sure how or where they would hook up. Any info on that part?

thinkin bout changing my lights to some LED bulbs i saw at autozone. i spotted the ones to replace the front turn signals and that gave me the idea to change all of them, front signals, rear signals, tails/brakes, reverse. any that i can find really. just wanted to hear some opinions before i...

I'm a member on another mazda forum where BP swaps are popular. I haven't done it myself, but just from reading what others did I know you will need the wiring harness and ecu for the BP, along with the actual engine of course. Motor mounts I'm not sure if they're different or not. If you need...

Sounds like some simple and some hard problems. Have you replaced the dome light at all? Could just be a bad bulb. I have a 2nd gen Protege LX (1998) and the door panels are held on by a screw behind the door handle, one behind a cover near the edge of the door, and another in the little hole in...

should be fine. i hav 8000k on mine, the headlights need adjusting too (they're aimed way up) but havn't had any problems with cops. but CA laws could be different.

changed the CAI into a short intake that i had on before. gonna change the filter to a Spectre hpR at some point. here are some pics of both intakes.....