i second that.

Where are you planning on getting it tuned at?

Elite in Minneapolis, Excessive Autosports in Sioux falls (my personal choice) or Road Sounds in Minot? Not sure if Minot has anyone that can actually tune but they do have the Dyno. Excessive & Elite have capable individuals. I'm in Bismarck but my Rx-7 is in Mitchell, SD in storage still :D

Hey, with regards to the 5/6 ports. I'd think that you'd get best performance from removing those systems altogether. Pull the sleeves out and block up the holes. I don't see a reason for them if you're forced induction right?

Z, thanks for doing this, really. I can't thank you enough. SO many people called me crazy and you've just proved them wrong.

Good job man.

Forget the "how to turbo an NA threads". "How to supercharge my NA" will be the next most asked question.

https://www.rx7club.com/images/5stars.gif https://www.rx7club.com/images/5stars.gif

lol@all of the m90's on ebay going up like $50 a piece in one day.

you sir, are a god among men. deffinatly want to see the numbers when you get it to the dyno. and i think i speak for everyone when i say WRITEUP!!!!

If you do plan on bringing it anywhere in MN to be tuned. PM me; I would like to see the results. A friend of mine is now considering this. We can fab all the stuff ourselves, and for $300 why the hell not?

I bought one yesterday.... hehehe you sir are a great great man... i just hope i dont blow my engine up attempting this.

Awesome...

You have done what i've been dreaming of doing for a while now. I want to see your bracket, and maybe get some specs on it. That has been my major hang-up and preventing me from trying this... well that and the whole "thought it was out of my budget" thing. But you may have killed two birds with one stone for me.

Like everyone else has been wanting, when can we expect a write-up?

yea i know bro i mean mad props on that yea a write up would be great....
TwEaK

omg... I was gonna get the akins EFI S/C kit, but fuck that!!! if I can do it for do it for less then 2300 I'm all about that. You should def. do a write up and summit it to RXtuner! Then post it on here. I want to see some dyno results asap.

For $300 I'll buy an N/A and drop this supercharger in.

I'll have a TII and SC'd N/A

yea i would do the same but i think we all need a write up on a how to...
TwEaK

YOU SIR ARE THE MAN!


PLEASE DO A WRITE UP!

I was planning on buying some parts for my VW bug, but now there's a new project....


SUPERCHARGE!!!!!!!!!!!!!!:rock: :rock: :rock: :rock:

Why dont' you run the supercharger vertically?
So you wouldn't need that extra 90 degree bend.

post a writeup.


i'll get a 500 dollar 86 base as a beater and put a fuckin supercharger on it lol :)

mad props son!!

glad to see people are still using their heads instead of their wallets to make HP

Where are you man? your fans are waiting! lol
This is seriously some kind of breakthrough. You deserve a cake or something.

Dyno it.... package it... then pm me with a price... :)

wow, i started reading this when it was made and i thought it was a joke.... put then i see there are 5 pages of posts... well maybe i should read this... all i can say is DAMN!

I could cry right now...this is one of the greatest things to ever happen. Thank God for people using their heads. Now I just wish I would've kept working on the S/C I wanted to fab up :D. Oh well...you can always make something betting...but consider this sir...

You just made the "first" prototype S/C for the 13B that's easily accessible to pretty much anyone. Congrats man...

Kiyo

P.S
We're still waiting for a writeup ;)

By the way...how ironic that you waited til 4/1 to put up this post...shame on you man how cruel! :D

come on dammit write up write up write up. Anyway we can get a hold of the main server so we can get his IP address and track down where he lives?

Very nice! A few minor suggestions though:

Your inlet and outlet pipes look very small. Increasing their diameter would surly make a large difference.

The outlet pipe plate is quite flat...there isn't a smooth transition between the plate and the pipe...have you considered using the TII air horn? Looks to be almost the perfect shape. Of course, height might become a problem...

Very cool project though. It's nice to know that there are a few around here who don't listen when the "experts" say "Can't be done". :D

im pursuing this as well, talked to my friend who knows everything + anything, upside, downside and everything in between about most cars, and we're gonna do this too.

zerocylinder: I see that you have a bid out for one on ebay. Looks like another one on the way!

Did he ever mention what he is using for an ECU and intercooling?

yes sir.. i have an m-90 on the way... I just have a few questions...

As far as your fuel supply, are you using an aftermarket, boost depenant fuel pressure regulator?

Also im looking for a pulley for the supercharger, but if that fails, i want to just straight up use a serpentine setup on mine... where can i find these pulley's?

Also, what kind of bypass valve is that? is it necessary to use that valve if i am going to run stand-alone?

Im probably going to use a turbo xs BOV if needed.

As far as retarding timing under boost, i want to be safe. I was thinking about using the 12a Turbo distributor, which retards timing under boost, and i beleive i can get ahold of one (i have a good friend in japan).. Will this combination work? If not then what do you suggest?

I will be running 460cc's primarys, and 550's secondaries.

Is the stock FPR usable for this application?

Thanks, Justin

Yeah, where's your fuel pressure riser? I would have done this by now but the ECU and intercooling issue is an expensive one to tackle. Fabbing the SC on is not all there is to it. How long has it been on the car? That V belt is pretty small to transmit that much power at higher engine speeds.

It's a great effort but some details don't look right. The TII runs 7 psi but has a knock box, larger injectors / fuel pump, different ecu and pressure sensor, and an intercooler. Oh well.

nope i got outbid and dont plan on paying for anymore.. my buddy said he'd put a paxton s/c on he owns... as soon as we get some answers, about where the fuel/ic/and all other questions that were asked.

im wondering about the belt as well. i dont think its gonna be able to handle much power. might have to get a dual pully and maybe use the AC's pully?

I know for a fact that the N/A fuel system (with a larger pump) can support 10psi on a turbo slightly larger than a stock one, that is with an aftermarket computer though. It has also been my experience that the stock N/A AFM maxes out at around 7psi in 4th gear with a stock turbo

How this all relates to this specific supercharger? I'm not 100% sure, but i'd bet that 7psi on the stock system would work ok, personally i'd add a bigger pump and probably an SAFC at a bare minium though.

Either way, this certainly is an interesting option.

To the original poster, what is the power band like? obviously it would haul down low, whats it like near redline? does the boost drop off at all?

by ME :D aka"Nicerx7"

id like to hear from aaroncake who has personally turboed his n/a, and the other gurus....

what type of wear+tear is this gonna add on my engine?

where the hell is this guy at he hasnt posted in the last day or so. I think we are all getting blue balled here.

Are you sure not running an intercooler won't be an issue? (I know that's a double negative.. but who the fuck cares)

As Santiago pointed out to me, a stock TII boosting 5.5psi on even lower compression rotors (I have a S4 shortblock, with S5 intake and longblock accessories) and they are intercooled.

Even so, this will be a project I'm going to take on :)

well, atkins is running 8 - 9 psi on the turbo block without intercooling... and thats with their horribly inneficient roots blower... with a centrifugal, whipple, or twisted roots you should be able to boost at least 7 psi on the n/a block without a problem....

yes adding a intercooler would increase power by bringing down intake temps, but i dont think its nessasary for safety... i have a feeling mazda incorperated it into the factory turbo design more for increased performance rather than solely to prevent detonation

also, the nelson/paxton blower made in the past did not use an intercooler and i dont think there were detontation issues with it (just overspinning the s/c and the bracket breaking :p )

Ah well, blowing my motor will just give me more incentive to do a TII swap :p:

Seriously though.. if this guy's setup seems to be working OK for now, I guess it'll work.

-Jon

Young you really need to do a Write up ....shit i'll help by putting it into AutoCAD drawings. Come to think of it if this works i wouldnt need Dave's N/A turbo from www.clubfc3s.com.

If you don't mind tearing your shit down (maybe when you put your BOV on) take some goood pics of your mounting brackets, and where exactly on the block you're talking about.

Are you using the A/C or P/S belt?

I wonder if there is any way to pull off using both... I kinda like my A/C in 102 degree 100 percent humidity! As well as P/S... daily beater :p:

Man I am getting hyped as HELL about this.

say you have the stock n/a cpu + fuel system.....any upgrades needed for ~7psi? will it detonate?

I think I would atleast upgrade to TII injectors/pump.

I will be upgrading the primaries and secondaries.. to stock TII levels, with a S-AFC II.

I dont know though... I've read that the stock fuel settings are pretty rich throughout the powerband.

Turbos because of the way they work (hot exhaust gases flowing through the compressor) will always run hotter than a supercharger. A supercharger can heat up too though, but I suspect at low boost it probably stays pretty cool without an intercooler. An intercooler wouldn't definitely not hurt it though.

ok guys....with this supercharger and upgraded fuel and safc 2 and all the goodies needed with a nice streetport and full racing beat exhaust and headers and all the lil bolt ons how much horse you think we can suck out of this? flywheel horse.

Enough to break the NA tranny and other driveline components.

I think the N/A tranny and driveline is strong enough. I mean, as far as I know, isn't Aaron Cake running the n/a tranny and stuff still with his turbo and all? I haven't heard him having any problems with it.

Mine broke the first time I ever took it down to the circuit, when I had the turbo on.... So yeah, I think they're too weak..
It all depends how you drive your car really.

I need to find out how to prep the NA fuel system properly to deal with a supercharger. I dont know about just an S-AFC. Timing will have to be changed as well . . .

so, we're looking at tii injectors, tii fuel pump, safc, + tranny + rearend from a tii?

sure, there's n/a automatic to n/a mnual write ups......but how difficult is gonna be to swap the tii tranny, rearend + such in ?