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I feel as though there are many questions that have been answered through the years regarding the MPI conversion process but have been lost through changes in the site. Due to the format of this I will be posting this in multiple parts, In the bigger picture, The MPI conversion is the process of converting from the ECI Throttle body injection setup which consists of a primary and secondary injector. Depending on the date of manufacture, your SQ will either be equipped with sequential injection or alternating injection. Sequential injection will be utilized in 87.5 - 89 vehicles according to production date and will be seen with a Green and Black injector. Alternating injection will be utilized in 87.5 and below with two injectors of the same color. Both will do the job great when you leave the car stock. But If you're reading this you already know the flaws of TBI. Now for the fun bits! MPI conversion consists of 4 main principles, - Intake manifold - Fuel delivery - Intercooler piping - Engine management Intake Manifolds are the easier part of the equation. The selection boils down to availability, which one can you find so to speak. Here is a list I've complied through the years and I'll keep it simple. I will add pictures as I go along. OEM Mitsubishi Magna - Most commonly found, and the most articulate of the Intake manifolds. The Manga Intake manifold is not a direct bolt-on. There have been many variations in the years as to how these are modified from a FWD application to a RWD application. More often than not you will find a Magna that has been already modified to fit. There are some that require an adapter plate and some that have been welded and milled to acommodate the larger rear coolant passage that the Australian G54 heads have. *be aware* there are Magna's that WILL NOT FIT due to longer intake runners that interfere with the brake booster and master cylinder. Will fit http://www.b2600turbo.com/images/IM008350.JPG Fuel Injection Pro Hurricane - This manifold is no longer in production and is a custom made unit. This Manifold has been engineered to be a purpose built direct bolt-on MPI manifold for the G54. Although almost impossible to be had many people here have been running them with success both on the street and at the track. http://www.angelfire.com/mech/edwardcase00/H-4S.jpg EIP tuning Cannon - There are two versions of the Cannon. The "street" and the "race". The main difference between them is the Intake Plenum and runner length. The "race cannon" has a larger plenum with slightly shorter runners optimized with emphasis for High RPM and High volumes of air. The street version is not that much different, the plenum volume is slightly less and runner length is slightly longer with higher port velocity in mind for driving on the streets http://i118.photobucket.com/albums/o113/solidboosttsi/eipcannon.jpg Chad's MPI manifold -This is another purpose built MPI manifold that has been engineered to perform well through all conditions whether on the street or the track, the R&D put into the making of this has been pushed to the limits of the space constraints of the SQ engine bay. http://webpages.charter.net/catsamuel/DCP01015.JPG Gato Performance - I don't know too much about this manifold but from the years of talking to members equipped with this unit, there has been nothing but good numbers produced with this setup. Just like all the Purpose built Intake manifolds, the fit is clean and more inclined towards the Race applications. http://www.ojperformance.com/Online%20Store/images/D/2.6%20Mitsubishi.jpg Top End Performance MPI - Well.... It's a Stock TBI manifold modified with 4 injector bungs and a new fuel rail. The concept proved will in the late 90's and worked for it's intended purpose but the price was and still is outrageous for something with minimal amounts of effort put into it. http://www.racetep.com/star4inj1.jpg There are others that I have not mentioned such as Maxboost's MPI manifold - There are variations of his manifolds and although I've never seen them in person, the craftsmanship and concepts are very innovative. http://i1250.photobucket.com/albums/hh538/sqperformance/4sale/photo2_zps771a38ba.jpg Which ever one you can get your hands on is going to dictate the direction for your build. If you have a choice of which to select, select according to your power expectations and your driving style. I have personally owned a Magna, EIP Race Cannon, and am currently using one of Chad's MPI manifolds.

I watch Fox News. It is the only news outlet that tells the truth anymore and exposes this administration for what it is......Lacking in world affairs. As for your comment about no one wanting to take away your guns......Hitler,Mao,Stalin,Castro and others made the same claim prior to them taking power. And what did they do? Took the guns away from the civilian population, that way there was no one left to oppose them I am surprised that you as a military veteran, thinks gun control is a good thing Sitting back and being passive about this will only reinforce the beliefs for those that want gun control

atleast you didn't feature your car for the first time on cops or worlds dumbest criminals running from the cops

Really coming along man, great work

Second that. I'm sorry you have to sell this work of art. I hope everything works out for you though.... If I only saw this last year

that motor is one of the sexiest things i've ever seen

Thats wrong on so many levels... This is a family site.....

That pitting/melting is detonation. Your ignition was too advanced or your AFRs were too lean, and you kept going with it. Not dogging you, but maybe it was the megasquirt with no knock detection/protection and over-the-internet tuning and not a real dyno shop with real equipment like a headphone knock amp and someone who knows how to tune cars. People always told me my timing was way low, and it was, but raising it caused knock. I was pushing 30+ psi for a long long time, put several thousand miles on it and had ZERO issues. 482 reliable whp no is joke and no mystery. Just good tuning. I did crack the block like you did once, but that's because the #4 injector clip fell off and it went lean (obviously), welded the rings to the cylinder then broke them, and around 15-17 psi without fuel hurts engines. Now, I recommend something with huge displacement, like a stroked out small block LS with a big as turbo (at least 88 mm). Precision just released their latest turbos with new aero (3 years in the making), all new housings and what not. 1400 hp is not too much.

Ok cool thanks alot.

Where u at ?

Good exposure...! Nice read! As always great car! Now fix that airdam before you next photo shoot! I like the "wide vehicles" entry photo... kool