You won't regret the time spent.īy the way - if you decide to give up on the Greddy I have an FPR and a boost dependant timing retarder that I don't need anymore, because I got bit by the Greddy bug. You will also need a fuel injection harness (cha-ching) but there is a cheap alternative to that too - do a search :-) I bought a GM sensor, and the wiring is somewhat weird, but I'm making it work.
As I understand it, if you buy the Greddy MAP sensor and the harness for it (Cha - ching!) it will hook to the e-manage with no weird wiring. It sacrifices power and fuel economy for a cheaper price and a simpler install, but it doesn't run as well as something that is mapped for fuel / air right up the rev range.įinally - the answer to your question. Also, the system is simpler, and therefore runs more simply. This means less power and less efficiency. In order to be safe this system over fuels so you don't get any detonation (in theory). Do you have a Greddy kit? That's definately how that kit works. It takes some stock senses from, I believe, a vacuum line, and uses that to increase fuel by increasing pressure so that the injectors and ecu think they are running normally, but because there's more pressure feeding the injectors more fuel than normal shoots out. Right now I will guess that you have a kit that uses an FPR, a Fuel Pressure Regulator. I'm researching myself as to where to put mine. It will measure how much air there is so that the Greddy can supply the correct amount of fuel for your engine. So yes the MAP is going to have to go after the blower (actually, turbine - you have a turbo. At higher levels you need something like it. Whew!! :-) At lower boost levels you don't NEED it, although I decided I did. The MAP sensor is one of these things, so that's exactly what it does. The Miata has enough of some of these things already, or not, depending on how much boost you're going to run. Very briefly, that's input (boost sensor, big enough pipe to flow all the air in, etc) operation (enough fuel so the balance of fuel and air is correct, enough spark to burn it, etc) and output (big enough exhaust, etc). You need to add all the things an engine needs to be able to run at boost.
Different cars handle it differently, I think the Miata just keeps on running until it explodes - the lean running condition. As soon as you get more pressure than air pressure, your car freaks out. Their ECU's are not mapped to fuel anything over air pressure. Their sensors can't sense anything over air pressure - just for fun I believe that's 14.3psi or 1 BAR. Most engines that are naturally aspirated from the factory will not be able to run with boost. You lose compression on a cylindar and you have to have that cylindar replaced. Usually it's the grooves in the pistons that hold the piston rings that give up first. Detonation can cause an engine rebuild because it can severly damage the combustion chamber / or pistons. This causes detonation, or knocking or pinging. BUT - not enough fuel and you will have the dreaded "lean running condition". Too much fuel and you will be under powered and ineffcient. Engines run on fuel and air right? Well that mixture has to be in the correct proportions. It is going to measure how much pressure or vacuum is available to your engine. The MAP sensor sends Manifold Absolute Pressure information back to the ECU, in this case that's the Greddy piggyback. I'm fairly knowledable but not the biggest expert on this board by far, and I have never done any FI work on a Miata that ran, yet. I've owned other turbo cars which I tuned.
#Greddy emanage blue map tuning install#
I've done about a year of research on this topic, but my used JRSC install is bolted on and MY tuner hasn't got his mitts on it yet. Having gotten the sort-of-disclaimer out of the way, here goes:įirst off my own disclaimer. And you really need to know at least some of it if you don't want to waste a bunch of money. All this info is out there and it just falls right out of google, honestly. But if I were you I would do some big searches both on this board and the 'net in general. Having said all that you're asking which is the way to learn, and I'm going to tell you what I know. What kind of turbo setup do you have anyway? Who put it on for you? Most people who are piecing things together, as opposed to just buying some completed setup, know more than you do about this stuff. bolt on all the stuff but let a reliable tuning shop finish the setup for you. If you're asking these level of questions you really should 1.
Ok, first some very friendly advice, than I'll tell you what you want to know.