So I have made some progress. Found a muffler shop that will weld me the connectors from the RX8 header to the 3rd (Main) rx7 converter. Problem was the 3 bolt flange for the RX8 header was something he didn’t have or could order. The best thing I found was some online for 70. So I found a replacement converter made for an rx8 and the pipe looks close to what I need. Funny thing is it’s the cheapest one I can find at 110. So I get the flange and a free converter to play with. If I had a rx8 I don’t think I would buy this thing but for this project I think it’s perfect.


Rx8 Canadian made federal rx8 replacement converter. :-)

 

 

I haven’t talked anything about the oil injection lines but I’ve been working on the side lines to get them all fixed up. The GSL-SE lines will not work at all, the RX8 lines two I got to fit but two broke just trying to get them to bend small amounts. So I will make all 4 lines from new Teflon lines. I will be making an extra set of GSL-SE lines and RX8 to GSL-SE OMP lines if anyone needs them PM me.


Best product to use as a replacement!

The hard part

Testing heating and bending. Product it keeps shape well.


Will figure out clamps soon.

 

Nice work. This will help me out a lot in the near future. Love the details. So using the RX8 OMP instead of just premix?

 

So to clarify I had a question about omp and what I’m using. So I’m using the 1985 GSL-SE OPM and using the 4 outputs for the RX8 injection points. For you that don’t know the GSL-se has 4 injection points two on the intake manifold and two housing injectors. The RX8 s1 has 4 ports two per rotor to inject oil. Spoiler alert 🚨 the engine ran! I wanted to prime the oil injection lines and after a few seconds of turning over she started and I had to turn it off right away. It’s actually going to happen!

 

Old lines removed

Brittle little lines!

Good bye!

Nothing is final in this build I keep taking things off then back on and it’s cool but still kinda want to drive already!



You know when you get to a spot and you say man that looks good well this is one for me.

Brings me back to the good old days working on a 747 engine oil change. Always bring your camera never know when someone says you didn’t safety wire something lol 😂

 

So eta on the exhaust manifold from Canada is feb 14 2022. Turned engine over a few minutes again but still no oil in the OMP lines. I might take it off a rebuild it just to get it over with. Figured I get oil in the lines but who know how long it takes to fill oil filter oil cooler line and all the oil passages before it gets to the OMP. I’ll have to read some more tonight on that. Been working on the throttle cable and I made it work with a 13mm wrench. I’ll have to adjust some more later but it’s close enough to get it to idle and maybe move it out of the carport. Also worked on the throttle body some. There was a cutout that was originally intended for the ford engine that I needed to fill in and for some reason I wanted to use aluminum brazing rod. Next time I’m going with plastic.


OEM ford 5.0 TB

So much cleaning to do only so much time.


MAP Gas, HF aluminum brazing rod

We’ll definitely would be easygoing to use plastic, don’t know why I thought it would be something better this way.

Ok well come back later and clean everything up.

China 13mm perfect tool sometimes:-)

Well I’m getting closer

Well I’ll bend one or two more times but you get the idea.

Maybe play a game of I spy A

 

congratulations! i like the way how you kinda just snuck that in there.

 

This is helpful info. The 13b msp made good power for what its worth especially not having to mess with turbos. I think I need to sell all my 12a stuff to fund a Renisis, I do have a spair first gen laying around that needs an engine after all... A first gen paired with the 10,000 rpm 13b sounds like a lot of fun!

 

I'm a long term Renesis owner tuner and modifier. There is an easy and reliable 210whp to be made from a well built 6 port, stock block Renesis. But to get that you have to replicate what Mazda did with the RX8 or you will be disappointed.
This means in particular ..... retaining the intake system/injectors and ignition.

 

Shouldnt be too bad to do. The worst part would be getting a good engine that I could rebuild later.

 

So yesterday the crimps for the oil lines arrived. So installed them all, Mazdatrix says on there website that the lines don’t need crimps. But I didn’t want them to come off even if I pulled on a line. After that I cleaned the carbon deposit in the intake manifold and intake runners. I noticed that wd-40 makes it dissolve in it. Break parts cleaner breaks it down. I started using both at one point to clean it. Unfortunately it was too much to clean all off this way, so I used map gas and started burning the rest. Once it was carbonized I used a dental pick and scraped the remanding. I did notice the 3rd and 4th port stayed clean from the injectors up stream. But the 1st 2nd port it was really bad, all new cars are having too much carbon deposits I would like if they would allow us to just convert to C2H5OH for a tax credit or something. All this electrical cars is impractical, the grid is dysfunctional as it is. Yet we can depend on it to charge all our cars? I’m sorry I just know too much and there games are getting old and I’m really young to be saying all this. Anyway another topic all together my bad.

 

 

So I’ve been working on getting the fuel injection system all converted over and both engine designs have bleed air bypass the throttle body. The following systems need this air.
1) oil injection lines nozzle air lines
2) crank case vent
3) RX8 center injection vortex nozzles
4) and the GSL-SE idle air control.

my plan is to have the
1) line connect on top of TB
2) side vent brass fitting with metering hole
3) will be bottom of TB
4) I will have a better idea later.









Almost ready to make permanent placements.

 

I'm so confused. Is this a 1st Gen RX-7 post? I get the RX-8 plastic-fantastic pics but where do the Hunda Accord and Furd TB fit in?

 

From what I understand, the mustang 5.0 throttle plate on the RX8 throttle body will effectively turn it into a mechanical system vs. Drive-By-Wire.

I presume the Honda Accord parts are being used to provide air for other systems on the engine.

 

Thanks. I followed the thread in the beginning but then lost track. I love good pictures in threads but didn't know what I was seeing with all the hunda and furd part pics.

 

Ok so project is slowing down some because I’m waiting on exhaust parts and I need to order a radiator and a few more cooling lines and other minor parts. I ran the car yesterday to get oil in the injection lines. There is a massive intake leak and it will not run well under 1500. This is not a surprise to me because I put everything together fast to get the engine to run tell injection lines filled up. I don’t want to comment on the fuel injection system yet, I’m still working out the details and I don’t want to confuse anyone with miss information. At this point in the build I’m going to resume updates but instructions will have to come after I get everything running good. I have a feeling even posting a video of the fist run people will take it as the injection system did not work.


I have to say I was happy with this.

Yum yum rx8

Almost!!!!!

Thought this was a cool picture

Next on the list of parts

 

YouTube link of first start video

 

I may have missed this .. however which ECU are you using?

Is this base MAP for a GSL-SE or a 4-port Renesis?

 

Never mind .. I just scrolled back to the beginning and found my answer.

Just to confirm you are using:
• Renesis ECU, manifold and throttle body
• GSL-SE fuel injectors (x2), dizzy, ignition coils (and I presume the stock GSL-SE fuel pump).

I've read previously that the Renesis ECU needs the RX8 gauge cluster to "talk" to all of the vehicle systems.

How did you address this?

 

Yes this is a 4 port rx8 engine running on GSL-SE fuel injection system. All original 1985 injection system. Stock ecu,injectors,fuel rail,intake temp, mas airflow etc.

 

So you are using the GSL-SE ECU .. not the RX8 ECU?

I presume the intake porting on the Renesis allows for much more air volume.

 

So it’s the GSL-SE ECU,2x injectors, Ford Mustang throttle body, dizzy-stock ignition system, GSL-SE mass airflow meter, throttle position sensor is GSL-SE also. I also used the SE fuel rail regulator and dampener.

 

So I’ve been working on this random misfire on the GSL-SE it’s been driving me crazy. I’ve tested the igniters,condersor,coil pack. I’ve replaced the rotor cap,rotor,plugs,wires,injectors,fuel pump, fuel strainer, fuel filter, checked grounds fuses etc. then after the RX8 swap the random misfire happened again. So after looking at everything again I found the distributor to have a broken spring on the mechanical advance. This causes the missing randomly. So now the hunt for the GSL-se distributor begins.