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My Renesis engine swap is still a work in progress. There's some custom fabrication required for things like the side mount alternator. I hope to get this car back on the road sometime in 2024.
I'm glad to hear it. I'm not going to have any more RX-7s, but I'll always love them - and I've daydreamed about a nice Renesis FB for about 10 years. I had an '84 GSL with a street ported 13B that made about 150 whp, and while it was nothing on paper, there was a charm and excitement to that car unlike anything else I've ever had or driven. More than 15 years after getting rid of it, I still dream about it sometimes.
Reading your thread, the first thing that really grabbed me was seeing a custom machined motor mount crossmember that probably cost about as much as a decent SA. I just love seeing people take the time to do things not just right, but better than required.
Once both this thing and my long-term motorcycle project are running, I wanna come see it and bring you some beers.
Is that custom oil pan a one off? Nice write up BTW. Looking to do this in a different way to my 80 SA. @RX7_Renesis
The custom oil pan was designed and CNC machined by Chips Motorsports. Chip should be able to produce another one for you if you decide to go this route. Alternatively you could try using a couple of GSL-SE oil pans cut and welded together.
The Renesis oil pan is slightly longer than a stock 13B, however it doesn't have the clearance needed for the rear steering linkage in our cars. You could also opt for a front mount rack & pinion which would free up some space for the stock Renesis oil pan.
I hope to get this project back on track and finished up later this year (2024).
The custom oil pan was designed and CNC machined by Chips Motorsports. Chip should be able to produce another one for you if you decide to go this route. Alternatively you could try using a couple of GSL-SE oil pans cut and welded together.
The Renesis oil pan is slightly longer than a stock 13B, however it doesn't have the clearance needed for the rear steering linkage in our cars. You could also opt for a front mount rack & pinion which would free up some space for the stock Renesis oil pan.
I hope to get this project back on track and finished up later this year (2024).
Yeah I just saw that oil pan and thought nice! I wonder what the cost would be? I was going to take some 12A pans and cut em up to make a whole one but if I can get a made one at a reasonable price I'm in. PM me if you can share what the price might be, I understand its a one off for Chips. Thanks.
Yeah I just saw that oil pan and thought nice! I wonder what the cost would be? I was going to take some 12A pans and cut em up to make a whole one but if I can get a made one at a reasonable price I'm in. PM me if you can share what the price might be, I understand its a one off for Chips. Thanks.
I think the GSL-SE oil pan already has the bunghole for additional sensors. If you're building on a budget, that's the route I would definitely go.
Labour and material costs have gone up significantly since I had my oil pan made. I'm sure Chip still has the specs and program to produce another custom oil pan.
Chip currently has my black SA as well as a black FD that he is working on. It was kind of neat to see two different generations of RX7 (in the same colour) sitting side by side.
We are working towards completing my Renesis swap by late spring/early summer.
Custom side mount alternator bracket
Convert the speedometer from mechanical to electronic
Upgrade the low pressure fuel pump to a high pressure fuel pump
Thanks to some very good people in Warren MI, I was able to successfully recover my 1980 Mazda RX7 from Chips Motorsports.
There are some parts missing, a trunk full of extra parts, and the driver's side window won't roll all the way up. Today I will empty the trunk and determine which parts to keep, and start preparing my car for winter storage.
This whole experience has been unbelievably challenging .. both financially as well as emotionally. I know its just a car .. however its a car that I've owned for 44 years and counting.
I'm currently working with a local business to machine the side mount alternator bracket for me. I will be responsible for the design and fitment.
Richard Miller has given me some great suggestions for an in-tank fuel pump that will be suitable for converting from a carburetor to fuel injection.
I have to research possible solutions for converting the mechanical speedometer from the RX7 transmission to work with the electronic signal from the RX8 transmission.
NV Auto will be pulling the final project together for me in the spring of 2025.
I have to research possible solutions for converting the mechanical speedometer from the RX7 transmission to work with the electronic signal from the RX8 transmission.
I'm currently working with a local business to machine the side mount alternator bracket for me. I will be responsible for the design and fitment.
Richard Miller has given me some great suggestions for an in-tank fuel pump that will be suitable for converting from a carburetor to fuel injection.
I have to research possible solutions for converting the mechanical speedometer from the RX7 transmission to work with the electronic signal from the RX8 transmission.
NV Auto will be pulling the final project together for me in the spring of 2025.
You could just use the GSL-SE transmission instead but I get that you may want the 6 speed. I'm busy collecting parts for my swap but it will be done differently but love seeing how this progresses.
You could just use the GSL-SE transmission instead but I get that you may want the 6 speed. I'm busy collecting parts for my swap but it will be done differently but love seeing how this progresses.
I'm too far down the rabbit hole to revert back to the SA or FB transmission. The biggest challenge will be the clearance or height of the Renesis intake system. Chip was planning to fabricate some sort of elbow on his CNC machine. Unfortunately that was one of the custom parts that was not completed.
Last edited by RX7_Renesis; Mar 18, 2025 at 05:08 PM.
I'm looking for suggestions on where to mount my BHR ignition coil packs. I will be using a custom side-mount alternator bracket, so I probably won't be able to install the coil packs in the stock location (on top of the 13B Renesis).