Hey guys, 1991 JDM Miata here, found you through clubroaster. So Im planning to work on my car hopefully in less than a year, that is what I bought it for (and to improve my driving). I have no wrenching experience (although a head full of facts and numbers). So here is the idea, buy a Haynes or something similiar, and completely build up a turbo for the first time. I have a general idea and maybe you guys can help me build up something realistic, Im looking to build up something extremely reliable and fun. I want something that feels like a factory special and would run forever like a stock engine.
180-200whp, quick spooling (DD/autocross) with seamless transition and bulletproof block. I would not want to spend more than 4500$.
1)Buy flying miata rebuild kit, take apart engine and clean it all out.
2)Install FM 9:1 turbo pistons
3)Install FM A-beam rods with valvesprings
3)Install only H-Beam rods
Now remember, first time working on a car, so I dont want my first experience to end with a blown motor.
1)Should I do it all at once (especially building everything in one pull) or progressively add parts? Im trying to save $ as much as possible but I would rather buy quality parts once
2)Am I going over the top on anything and would my $ be spent better elsewhere? Because I know the 1.6 motor can handle boost pretty well. I do not want anything maxed out or to be pushing my luck (aka injectors at 80% duty cycle)
3)Greddy or DIY? (FM seems a bit pricey for what they offer, plus I want to learn and do the work myself). Ive seen some nice full turbos (mitsu) with IC on ebay for around 1k. From what I understand I need the turbo manifold, turbo, intercooler (for my power levels), downpipe (is this the header on NA cars?), better injectors/fuel pump or both and fuel management.
4)440cc Injectors good enough? Will it be a good idea to get a fuel pump? Walbro?
5)EManage or MS? (Im not looking forward to this, looks tough)
6)What is this rear end business you guys keep talking about failing, is this the rear axels or differential? Because the snot for differential my car came with is gone, the inside tire is always spinning.
7)Finally how does all of this effect fuel economy and emmisions, as this will be my daily driver I do need it to pass emmisions. Would you just lean it out for emmisions?
Sorry about the long post, but it seems you guys know what you are talking about, thanks for the help