I will soon be posting details and pictures of a conversion from the original 12A engine to a stock Renesis engine which will be managed be an Electromotive TECgt.

 

I'll be interested to see how you controlled the auxiliary ports.

 

very nice! cant wait to see more details

 

why not use the stock pcm and an accessport?

 

Can't because of the security key/dash/ ECU theft prevention feature in a stock vehicle

 

The two vacuim operated valves will be activated by thier respective solenoid valve enabled/disabled using a output.
The electrically operated port will be operated by another output (RPM & TPS/MAP) through a circuit I designed

 

dosnt racing beat offer a flash that can disable the key security thing?

 

Little black twin relay box + 2 signals from the ECU sorts that out.

 

This thing is going to fly!

 

Very cool swap indeed, sub'd.

 

may I suggest ...... better brakes... enjoy the ride What she weigh?

 

im sure the accessport could turn it off too...

 

Have you tested this system yet? I've heard a lot of people talk about custom APV motor control but I've never seen results of someone who has gotten it to work over a long period of time.

 

now this is a project! can't wait to see this thing.

 

I don't know if this will help, but I used to use this on my Honda days. When we swapped VTEC motors in and didn't have a VTEC ECU this is how we get the VTEC to work.
http://www.msperformanceonline.com/8950.html

 

No it won't help, that's just an on/off switch

 

OK guys, progress has been made over the past couple of weeks and I am please to tell you that I managed to "fire it up" last evening in my closed shop. (Its freezing here in Texas. This was not as "simple" of a project as I anticipated but the light is at the end of the tunnel!
I have taken several pictures (not sure how to create an album on the forum yet) but I am sure I'll get some advise!
Last night, I built the exhaust system which includes a high flow CAT purchased from RP. It's nice and quiet, very smooth, very peppy and can't wait to drive it later on today or Sunday.
I used a "base" Electromotive program file I had in my Rollerskate to start with although it had different injectors. That motor is a half bridge Cosmo (from my drag RX8) before I turbo charged it with stock Cosmo 850 injectors.
Next step is to assemble & complete the "Black Box" for intake control, mount the electric radiator fan, reinstall the heater blower motor so I won't freeze to death then begin the tuning process. Once I have it "drivable", I'll be off to Rotary Performance to see Ari & Chris and the dyno.
for now!

 

very nice, cant wait to see some more pics

 

Hi, I have a project like yours an Rx-7 1984 with an engine RX-8 2004 Automatic. I control it with a Microtech LT-10.

http://http://s219.photobucket.com/a...-7Satourne.flv

Good luck

 

http://s219.photobucket.com/albums/c...-7Satourne.flv

 

I have to confess, this has been the most frustrating engine to "tune" I have ever done. Not knowing anything about how and when all the injectors and manifold valves operated or are staged in the factory ECU has been the challenge. I literally have used up over a tank plus of gasoline just in my shop with the car on the lift.
I am still amazed at how temperamental this combination is where I literally have had to tune each load point/RPM cell by cell, and I haven't been to the dyno yet!

Even adding the custom intake tubing and air cleaner had an effect so I had to start over. Anyway, it's finally ready to take it off the lift and go for a test driveMore to follow with pictures.

 

From the standpoint of tuning, wouldn't it have been simpler to have done a "frankenstein" engine using the 4 port renesis engine, substituting in the front cover and MOP from the '79, and using the injection , motor mount, and ignition from a GSL-SE?

 

what exhaust are you running? it sounds nice.

also, i think stiffer motor mounts are in order.

 

I elected to use the stock first gen. engine mounts but had to fabricate the mounts from the engine to the stock mounts. I considered fabricating a totally new method (to the sub frame) but that would have interfered with the steering etc.

As for the exhaust, I elected to use a high flow cat and the stock pre- silencer which I connected to the "stock" rear muffler. I will change this later but for the tuning "experience, I wanted to keep it quiet and save time.

 

Are those vintage rubber isolators at the '79 stock mount points or new ones? My recollection from when I had a '79 is that they have a lot of compliance. It looks like you're using new ones, so I would guess they would be softer than originals from '79 (just because of hardening over time).