Monk

iTrader: (3)

I don't think you'll find a more educational site than this one. It sounds like your best course of action might be to just sell this one and go back to a stock car. If you are really certain that you want a turbo car, save every penny you earn and read. Learn the limits of your car in stock form and, when you are ready for more power, you will have the knowledge and money to do it right. If you insist on keeping something that sounds like it's on the verge of self destruction, at least post some pictures of your engine bay so the very knowledgable people on this forum can figure out what the hell you're working with.

CleverRevver

Well it sounds like I shouldn't have to worry about the self destruction from the other responses! But I'll get some pictures first thing tomorrow!

zoomazoomzoom

Please get some pictures of the tag on the cold side of your turbo as well.

Look at the passenger side back of the motor (closest to the windsheild). There is a part back there called a crank angle sensor (CAS is the abreviation Miata folks use). Take some pictures of this part and also all the wires coming out of it.

Take some pictures of the rubber vaccum lines running in and out of the intake manifold too.

thenuge26

iTrader: (2)

Read "Maximum Boost" by Corky Bell. He's a vendor on this site, and while a bit old, his book is probably the best 'Turbocharging 101' you can get.

Steps to fix it on a college budget:

1) remove turbo

2) drive around NA 1.6 and hate life until you have money to do it right

Either way the first thing you should be doing is installing a wideband sensor so you can see how bad the tune is.

vteckiller2000

iTrader: (4)

The tune is probably stock with an FMU as the kit was delivered from Greddy.

Any tuning issues are bound to be mechanical or maintenance issues based on this (so long as he is only running the base 5 psi).

thenuge26

iTrader: (2)

Right, I think it was Fireindc that talked about how horrified he was after installing a WB02 in his greddy system and finding he was at 13.5 or leaner in boost.

vteckiller2000

iTrader: (4)

I had the opposite experience. Mine was in the mid 10's AFR.

thenuge26

iTrader: (2)

The point being, just because you can't tune it doesn't mean it's a good tune.

Joe Perez

iTrader: (8)

It's a very general text (eg: non-Miata-specific), and parts of it are getting rather dated, but it's still the best fundamental reading on the theory and application of turbocharging that exists:

vteckiller2000

iTrader: (4)

The most valid point in this thread.

jcmusmc00

Miataturbo.net + "Maximum Boost" by Corky Bell + $$$ + ALOT of reading & searching Miataturbo.net + $$$ = success and one super fun car to drive

Braineack

iTrader: (62)

Welcome to the site CleverRevver, thanks for joining up!