10-07-2006, 10:37 PM
Join Date: Oct 2006
Location: Atlanta, GA
Total Cats: 5
Fuel System, Injectors, Emanage, Oil Lines, Breather Line... ECT
I just bought a '99 MX-5 with a bored out built 1.8L running a T-25. The previous owner spent all kinds of money on this build, some of it was mispent in ways i'd have done different. I'm in the process of researching and planning out what I need to do to make this setup awesome and more than capable of 10-12 PSI when I want it, if I want it. So I have tons of questions and have been doing a ton of research but need some clarification.
So i've spent the past 3 days reading, reading, and reading somemore as well as discussing with my roommate who also has a miata about what I need to do to my car to make sure that it will continue to be good to me.
Here's my current setup from the previous owner. I'm still learning things about this car as I get under and around all the engine bay.
1.8L Bored for 9:1 compression
Wiseco Pistons / Pauter Rods / New OEM Crank
Voodoo ECU Piggyback from Flying Miata
T-25 Hybrid (Saab, Pontiac, 300zx donors)
Tial 35mm Wastegate (7psi)
Tial BOV 12lb spring
Custom IC piping Blue Powdercoated & Valve Cover
It's running all stock fuel system with the Voodoo box. Currently under boost my Fuel/Air gauge is reading lean but on FM's site it says that my gauge will do that with the stock o2 sensor. What o2 sensor should I use instead to get a good reading?
-I want to get a BEGI FPR to make sure I have the correct pressure coming in. Should I upgrade my fuel pump as well to a 190HP? How many psi can I run with stock injectors?
-If I wanted to run 10 psi i would upgrade my pump, regulator and most likely my injectors. Then I would need new ECU management. Would the Emanage blue suffice because it appears to be a very cost effective solution with alot of room for upgrades?
-With the Emangage i noticed that 330cc injectors are the limit for that system, would that be enough for 10 psi?
-My BOV currently mists a little oil into the engine bay. Is this because my crankcase breather isn't routed to my intake before the turbo? It currently has a little filter from autozone or somewhere on it.
-What sort of tuning can be accomplished using the Voodoo box that the previous owner bought instead of using his head and getting the Emanage? I know there are adjustments but would I have to get on a dyno to benefit from any Voodoo tuning?
-OH yeah, if you look at my VBgarage, the piping to my Tial wastegate is crazy and I'm yet to see anyone using this setup. Anyone know a better way of doing it?
-My oil lines to my turbo(oil only setup) are rubber and I'm not a big fan of them. Is it ok to just run straight braided hoses to and from the turbo? It looks like I should use a 1/2" ID drain hose but when it comes to the inlet i don't want to over pressurize the seals in my turbo. Would 3/8" be restricted enough to keep my seals feeling good or would i need another restrictor inline to the turbo to keep the pressure down?
Ok i'm going to stop at this and pray that someone has some time to look this over. Till then, back to the search button. Thanks so much guys. I'm astounded at the info in this forum. My friends are about to kill me because all i talk about is Miatas.