I spent a few days toying with the idea of putting together a turbo kit for the n/a fc owners, this kit is however not completed, and nothing is set in stone. I am trying to offer the cheapest possible way to turbocharge a non-turbo FC. I do know ofcourse its not of the best quality, and obviously not the proper way to go about doing it. I already make a very high quality To4 manifold, and kit for both turbo and non-turbo Rx-7s, but lets face it, not to many Rx-7 owners can afford to do anything the proper way.
*Aaron Cake has approve of this thread*

Key points:
Cheapest possible kit at the expensive of quality
Little know-how required to do this
Most bang for the buck

This proposed kit will use a factory 87-91 turbo and manifold with no intercooler, but water alcohol injection.
The EFI will remain factory, except for larger secondary injectors and an S-afc or some other fuel controller.
The factory intake system, main catalytic converter and catback will also be used. No tapping required for oil feed or return lines.

I have not completed this kit, I don't intent to spend any money finishing it, testing it on a car etc if there is no interest. As said before I can alter any part of the kit, I can even have the turbo hot pipe made out of a nice cast piece if desired.

I have made a nice sturdy spacer, that will not break over time. I intend to add some bracing to it, and also weld it inside and out at each flange. .128" thick wall tubing will be used, and I have 1/2" flanges on either end. It will require either longer factory studs, or the use of bolts and nuts. An additional exhaust gasket flange is required. I have aftermarket ones in stock.

I have not constructed the downpipe, but I already have the flanges, and I plan on making them out of 2.5" O.D. piping. It will bolt to the stock main cat.

I will have assembled oil feed and returns lines, made out of cheaper Earl's AN lines, SS rubber hose and CNC flanges. This will require an oil filter pedestal adapter for the oil feed line source. The oil return line will screw into the oil pan drain plug hole.

A water alcohol injection kit is required, $200 will buy you a basic kit here: http://www.coolingmist.com/categories.aspx...on=set&res=1024
This will require either I or youself to tap a the throttle body inlet to install a fitting.

The piping from the turbo to the stock TB can be setup as pictured if desired, it is by far the cheapest way to go about it, but by far not the best. I would supply a different piece of hose to attach the factory bov pipe to the turbo. I can have a nice piece cast that would have gentle bends and nice I.D. transition if desired, but ofcourse the price will go up.

These parts can either be supplied with the kit or you pick them up yourself:

1) Used s4 turbo, manifold, and associated lines/fittings possible stock IC lines/bov: $120-200
2) water alcohol injection kit $200
3) S-afc and 720s $400

Spacer, assembled lines, downpipe, and possible intake pipe I haven't determined the price yet, the parts alone are near $300. I'm not going to do this if there is no money to be made so probably atleast $300. I can also rebuild the turbos if desired, $275 if the price before shipping. We can also do any hyrbid upgrades too.

Now I figure if there is interest for this, it will be used on cars with a limited budget, running the factory powertrain and cooling system. I figure this kit should not be run at more than stock s4 boost, 5.5 PSI. The power increase should not overwhelm the factory drivetrain, cooling system, suspension, or the higher mileage used motors. All said an done the timing should be retarded several degrees, and a wideband used to tune the s-afc.

So is this worth doing or am I a retard I already asked my boss not to laugh at me..





http://www.nopistons.com/forums/index.php?..._album&album=42

 

so is it 300 shipped for EVERYTHING??

or did i read sumthing wrong??

Im kind of interested

 

got my interest..would you be thinkin group buy or individual purchasing ...ah the questions roll!..ya it sounds good ..more info ..please

 

This sounds like it could get expensive in the long run.........

 

i love the idea coming from a guy with a diablo parked next to a FC lol

 

Did you have to notch the frame?

 

+1

 

Yeah lol. A Diablo... then and FC. Someone doesn't belong!

 

Are you going to supply an AVC plate and a low clearance bolt/whatever for it, or just use the two bolts? What assembled lines, feed coming from the pedistal? I'd assume it comes with the pedistal then? Drain is going to be a drill and tap I'd assume in the stock locations (just going to have people assemble their own line length or include both for s4/s5?). Good luck though, it's a pain in the *** to just sell the spacers for $75, always cool to see more turbo n/a options! Oh, and you'll want to make a note not to use a S5 turbo, those things will hit the frame no matter what you do.

 

Is there any way to turbocharge the car while keeping a working 6PI system? I'm guessing the s4 intake would be best for this application as the VDI would be pointless, but it seems to me that the 6PI and the turbo would be a nice combination if you could just allow enough clearance to keep the actuators.

 

They're pretty much worthless with a turbo.

 

Didn't someone say in the AWD thread that we don't have any rich eccentric people on the forum? I'd say someone with 2 exotics in their garrage (look through his gallery for the black and/or red ones) counts. I have to say good luck to you sir.

 

Sonicrat, is that you? Oh, wait, sorry...wrong guy.

 

SonicRaT tried to do the same thing, except his came with a new manifold setup and a lot more stuff, seemed way better and more in depth than yours. Needless to say, he got like 2 people interested or something, and it just slowly died after that.

 

In my opinion, no production kit should ever use a spacer. It's just such a big hack, when making a manifold isn't much more complicated.

I think that many people will also freak out about not having an intercooler, even though it's not necessary when using water/alcohol injection.

 

It didn't really die, I get people trying to buy it all the time, I'm just behind on the few people who've paid me and I'm working on now

 

I think if he put his welding ability to use he could make just a whole new exhaust manifold to locate the turbo in a better overall position, that would be a useful way of doing it.

 

Ah gotcha. I still liked yours better, with the new manifold/etc setup.

 

True sonics kit was overall better, but keep in mind the posters goal was a cheap bare essentials kit. Not an all out every detailed improved, relatively expensive deal like sonic's.

Speakign of, i still have never seen a pic of sonics manifold.

 

^^^ me either!! i wanna see pics sonic!! also im concerned that if people buy this kit and krank up the boost!! "pop"!! well i guess that isnt his problem and i hope people know enough not to.

 

I can supply the kit with an AVC block off and the associated hardware, probably just outsource them from k2rd or someone else. Same with the oil pedistal adapter. So add another $100 to the total for those to.

The oil return line will thread into the drain plug bolt hole in the oil pan, same as the greddy turbo kit for the Rx-8. Again not the best route, as you will be heating the oil, but easiest and most cost effective. The line would come assembled, and would fit both s4/s5 cars. Thanks for the pointer on the s5 turbo.

 

No notching required, that pictured car actually has a bent frame, pushing the frame rail in 1.5 inches..

 

No doubt that is a better route, but it is a more expensive one. The entire idea behind this kit is cheapest way possible. I can easily make an exhaust manifold for this setup with even a fmic kit etc, but that will raise the price drastically, especially if I use 316/318/321, there is always a better way to do everything, but how many people can afford that?

 

Again I said nothing is set in stone, if there is interest and the majorit want a manifold I can do that. I am not disagreeing with what you are saying.

 

I'm interested in a Turbo kit, but i'd buy more quality one with IC, proper mainfold and proper oil lines connection. BTW just curious cause i have one - will you include a TII fuel pump? I think it will be neccesary...