RRTEC

iTrader: (13)

I am trying to gather all the parts I will need to turbo "mr.hankey".. I am running a 2nd gen 13b with the 2nd gen s4 n/a intake manifold. The car's primary use will be for autocrossing so boosting at cruising speed shouldn't be an issue. As much as I understand all I will need is a S4 : turbo/manifold/wastegate, a drilled and tapped oil line for the turbo, and a custom intake tube for the throttle body. Is this correct? Or am I way off base?

Part 2) Now if all that is correct I am planning on running Non-intercooled for the time being, to simplify this install. (plus I am on the verge of broke on this project) Also the MAF would have to be piped to the Turbo inlet correct? And to cool the temps I would pipe this to the front through my HKS intake... Am I still on the right page?

The T2 manifold will have to be slotted to fit the N/A exhaust mounting location aswell if I am not mistaken..

Is That all I need to make this work? Am I going to have to run a boost controller (manual of course) or can I get away for now without one..?

Any input or links would be great!

Trevor

Gregs

you will need to space the turbo out to clear the manifolds

this website will be your bible...

http://www.aaroncake.net/RX-7/naturbo.htm

edit: your welcome

RRTEC

iTrader: (13)

I forgot about the 2.5 inches needed to clear... No biggie is everything else right?

1985_RX-7

im doing the same thing next summer, except with my 12a.Good luck and have fun

FB II

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/some-pics-my-na-turbo-setup-377082/

that is the thread you need. Imprezed RS is my friend here in charlotte. i've worked with him on the whole setup from start to finish and seen what it takes. it's no easy task, in fact it was easier for me to go turbo LOL. but read that from start to blown motor.

RRTEC

iTrader: (13)

Great page.. I still think I am going to attack this....

StricklyOldskool

There is quite abit of faburcation needed to attempt this project. I have been running 5psi of boost on my stock 6port motor for over a year now with no problems but some smoke from running rich. I have now got the Greddy boost controller in am now going to start pushing 7psi as long as fuel allows. I am keep a close eye on the fuel range seeings I am not running a wideband sensor. (I do not need anyone to chime in here on how important a wideband is) I am running a Cartech FMU with the stock injectors on the stock ecu. I will be running on this for a little while longer while I plan to weld some injector bosses on the runners and use a Haltech F5 to piggy back for the extra fuel to help me get up to 10psi.

skrewloose78

i still say ditch the stock ecu,afm and with a megasquirt. it probably would be a good idea to push it too hard until you get an intercooler.

hey you still need those other stock 1st gen parts right? i think chad is coming back down here this month if you want to come by and pick some stuff up.
https://www.rx7club.com/showthread.p...99#post4769899

RRTEC

iTrader: (13)

Yeah I still need some of that stuff... I am at this point trying to collect the parts needed to attack the project. I am going to pull the motor, tranny ect back out this winter when I go to paint the car/undercoat it and I figured what better time to go turbo as when the motor is out and the car is just sitting there unused. I really want to do a great job on the paint and so i need to completely dissasemble the car to do so. At that point the fabrication can be done and the car can be re-assembled and ready to roll.. with BOOST! Right now, I am finishing the Stock 6port install this saturday and will drive it as-is untill then.

skrewloose78

ok just let me know what parts you need and ill have them ready for you. i think chad said something about still needing the front cover and oil pan off of the 13b i have in the garage.

RRTEC

iTrader: (13)

I still need the starter, the pulleys, distributor cap, ect...

skrewloose78

ok ive got the starter,distributor cap,rotor button,and ill have to find the pulleys

RRTEC

iTrader: (13)

Pulleys not a priority... But do you still have the injectors?

Should I remove the 6 port sleeves when I go TURBO or leave them in? I figure the boost will make up for the low rpm lag from loss of sleeves right?

FB II

yes remove the sleeves because ultimately you really need to hog out the manifold like in the thread i linked you to. the 6port actuators and sleeves will only hurt.

skrewloose78

i still havent been able to find the injectors.

fbII i read a thread on this a while back(i think it was in one of the pineapple sleeve threads) that it was better to leave them in place but wired open instead of taking them out completely. something along the lines of the abrupt turn in the ports without the sleeves in place made the airflow decrees due to turbulance. im not sure how reliable that sorce was or if it even still applies when going turbo.

FB II

you gotta think tho, boost is part of the equation and with that i wouldn't trust those sleeves staying perfectly open. i dunno, maybe i can get my friend to post in here about how he did his.

cds00bsmg

iTrader: (1)

Get rid of the sleeves if your going turbo, I think aaroncake elaborates on it a little more. There are a lot of second gen guys going turbo N/A for obvious reasons, (faster than a TII with less boost) and having a lot of success using just a stock drivetrain (upgraded clutch), and ecu. SonicRat is one of them, I would direct any turbo'ng of N/A motors to him or Aaron Cake. Your going to need larger primary and secondary injectors even at 5-6psi, stock turbo II 550's will suit you for the present, but I would reccomend at leat upgrading your secondaries to 720's or 750's. Are your injectors high or low impedence? Also a walbro fuel pump wouldn't be a bad idea either. If you have the spare cash, get a SFX AFPR and fuel pressure gauge.

The AFM has to be attached to the intake side of the turbo as you stated, you can make your own adapter out of whatever, as long as its in place before the turbos intake. Are you removing all the emissions and blocking off everything?, that will help simplify stuff too. I would highly reccomend a wideband oxygen sensor as well, and a good EGT gauge.

Basically, the steps you asked about will work, but definately get stock TII injectors. A manual boost controller will help, but the stock S4 Turbo wastegate is ludocrisly small, and you will need to port it, and weld in a new flapper, this in turn with a boost controller will give you better control over overboosting. There are write-ups in the second gen section abot porting the wastegate out to 35mm or so.

I have not personally done this, but have read a ton on turbo'ng a N/A FC, turbo'ng FB's, and then have done a lot of work on my TII, but am by no means an authority on turbo charging a six port motor. Like I said, get in touch with SonicRat off the 2nd gen section, he has ran some insane times in his turbo N/A FC.

Lastly, if you are interested, I have two RC 750cc injectors that are a direct fit for the FC fuel rail (high impedence) a BRAND NEW greddy profec S boost controller, and also a Brand New FMIC core. 27.5" long by 12" tall by 3" thick, 3" outlets on each end tank.

I hope I've helped you at least somewhat...
keep us posted on how it goes, I am always interested in everyone's turbo projects just to learn more...

~Chris

Infini IV

GSLSE block
S4 TII turbo manifold
S4 turbo with compressor upgrade
S5 TII intake manifolds
550/680 injector combo
CAS
LTX8 with Bosch coils

... is my setup/plan

cds00bsmg

iTrader: (1)

Also, on the s4 turbo manifold, get rid of the twin scroll flapper, and get a NPT 1/4" brass plug, and plug that hole, or you can put your EGT sensor in there if you like. There is a write-up on 1300cc.com But definately, definately port the wastegate. The stock wastegate is supposed to open at 5 someting psi, but trust me, unless you port it, you WILL get boost creep, even if you have a boost controller. Especially if your running a larger diameter exhaust and no cat.

RRTEC

iTrader: (13)

I was considering using the stock gsl-se injectors.. THey are more flow then T2 ones. Ok well all I need are the parts now..lol-

FB II

yes, bigger... but there's only TWO. swap out to the TII intake manifolds so you can run the secondary injectors.

cds00bsmg

iTrader: (1)

yea, 680's will work. You just have to make sure you have the right impedence. Are you planning on doing any motor work to the car over a period of time? Id really really like to do a bridgeported and turbo'd 12a. Even if it doesnt last that long.

~Chris

RRTEC

iTrader: (13)

I am probably going to run it as a "stock" 6 port Turbo until it pops, after that a rebuild with mild porting, an intercooler ect..

cds00bsmg

iTrader: (1)

Sonicrat yielded these results in his FC turbo 6-port:

"Slips and such I have somewhere around here, best I ever pulled was an 11.37, dyno'd before that running pretty pig rich at around 406whp. I don't talk much about any of my setups anymore."

as far as I know, this is with the stock ecu, and just an A-AFC. You would have to ask him personally what all his setup involved, but Im pretty sure thats on a stock S5 turbo as well, and I know the motor was stock port, wtih like 130k on it too. He shoud be able to answer questions you have, but he said he has been reluctant to do so lately because of some who pursue turbo'ng a N/A and yielding bad results coming back to blame him.

~cHRIS

RRTEC

iTrader: (13)

That's crazy, if you do anything to your car that isn't recommended in the owners manual you have to take responsibility for your own mods. I fully expect to pop this motor eventually running boost but that will be no-ones fault but my own! I really am excited about getting this underway this winter!