benny1979

Hi i am new to this site and to rx7s but they always interested me so i bought one. And unfortunately it is a non turbo and not really enough for me and i was woundering what exactly i would need to do to go turbo and how much it would cost? thanx for any advice and tips you might have

IanS

iTrader: (4)

If you go to the 2nd gen FAQ thread there will be links in there about this subject. Its been covered at least 10,000 times.

benny1979

thanx will do

benny1979

ok i went to the faq and ran a search and nothing came up what am i doing wrong

mrenns34

iTrader: (9)

I Kinda did the same as you but i did it all myself i ended up picking up a gxl body for 50 bucks then i took a nt 13b and bought a kit for it the kit was about 800 and then bought header it was like 150 also bought the turbo 2 intake right now im fighting tunning it i got some of my stuff off ebay cheaper but still works awsome it is a garret 50 trim

benny1979

so you can just by a kit and the exuast manifold and just bolt it all on or do i need to modify the engine in any way. do i have to get new injecters

Aaron Cake

iTrader: (1)

Can I swap a Turbo engine/Jspec engine/13BT/etc into my Non Turbo?
Yes, check these links:
https://www.rx7club.com/forum/showth...threadid=26647
http://www.rotaryresurrection.com/ro...conversion.htm


What Turbo kits can I add onto my non turbo RX-7?
There are no longer kits formally made at the time of this post, however there are companies from time to time that do make available non turbo to Turbo Kits. Because most of these companies stop building the kits, or go out of business in short time, it is impossible to keep active links for them.

Most people that turbo a non turbo make their own kits:
Using the stock TII turbo, exhaust manifold with spacer, NA intakes and NA ECU:
http://www.aaroncake.net/rx-7/naturbo.htm
https://www.rx7club.com/forum/showth...threadid=88540

https://www.rx7club.com/forum/showth...threadid=88758
https://www.rx7club.com/forum/showth...hreadid=124232
http://users2.ev1.net/~ccoutts/turbo..._a_project.htm

Using the stock TII turbo, exhaust manifold, intakes, ECU:
http://forum.teamfc3s.org/showthread.php?t=37694

Turbo-NA Forum:
http://www.aaroncake.net/forum/forum...urbocharged+NA

mrenns34

iTrader: (9)

Honestly it depends on how much boost you want to run i belive you can run up to 8.6 psi stock anything about that you will have to start moding fuel pump injectors and if you go extreme then internals

Aaron Cake

iTrader: (1)

If you intend to run 8 PSI on the NA engine, you will have needed to upgrade the injectors before that. The factory ECU cannot drive the NA injectors hard enough to supply enough fuel for 8 PSI.

mrenns34

iTrader: (9)

K So isnt the stock injectors 460cc right? on the na the turbo 2 is a 550cc ? Is there really that much of a diff also elevation comes into play as well i need to run 4 psi to compensate for sea level at my elevation thats what i was told so if i run 8 i really running 4 also i turboed a honda everything stock 12 psi ran awesome is there that much of a diff with the rotary?

Aaron Cake

iTrader: (1)

Correct, NA 2nd gen 13Bs run 4 x 460CC, while turbos run 4 x 550CC.

The difference is easy to figure out. 1840CC / 2200CC * 100 = ~83%. So you have about 20% less fuel with the 460CCs then the 550CCs. And considering that 8.6 PSI is fuel cut on the TIIs and 5.5 PSI is stock, that's a significant difference in fueling. With a standalone, you could probably get by with 4x 460CC as you can run them at high duty cycles, but really it's not enough injector.

Elevation can make a big difference of course, but generally that's not included in the discussion for a number of reasons.

Are you honestly comparing a turbo Honda to a 13B turbo? Do you think that these engines share anything in common?

mrenns34

iTrader: (9)

Im Just Learning about these rotary's thanks for you help though and the info i can understand y elevation is not discussion topic i have a help ? maybe you should check it out you might be able to help me on it

Aaron Cake

iTrader: (1)

To be honest, I'm not even sure what that last post means.

It is very difficult to understand posts when they are made in shorthand and don't follow proper English conventions.

NoPistons!

iTrader: (3)

If you want to go turbo buy a turbo II engine with harness and ecu. It's harder and harder to find s4 TII's but you can find s5's all over ebay for around $1200 shipped. If you plan on running higher than 8-10lbs on the stock turbo, buy the tII transmission and buy a mazdatrix driveshaft as well.

Either way, doing an engine swap is probably going to be marginally cheaper, easier and faster than boosting your six port. You have to peice together your own kit. Most people would recommend you go stand alone (haltech, power fc, etc.....) and find a well known rotary tuner with GOOD feedback.

benny1979

thanx for the advice i was thinking about going that way. i seen a few turbo engines with trany for around 12 to 1600. If i did this what would my current engine be good for should i keep it and rebuild or just sell it? feel free to email me any links or info to my email benehicock@hotmail.com