Turbo upgrade before I'm old and gray - 1995 M Edition
Decided to post my project to get some help/feedback and give you guy's another noob to laugh at maybe. The original plan was to add FI to my 1993 Mariner Blue project, but it has been dragging on due to home upkeep, “emergency” projects, and cold weather in upstate NY keeping me from working in my un-insulated shop.



Tired of waiting to experience FI life I decided to upgrade my 1995 M Edition, at first I wanted to keep it “original”, but the previous owner had made some changes, including a loud/boomy dual exhaust, interior appearance package (stick on pearl stuff along doors and center console, and aftermarket stereo with amp located behind the drivers seat). The amp was removed immediately and a slim one was located in the package tunnel behind the spare donut and eventual replaced the exhaust with something much quieter without rasp. After reading a ton of posts on MT and other forums I got the bug and started doing more less invasive upgrades, Tecna coil-overs, Flowforce MSPNP2 (micro PNP?), long tube headers and gutted the MAF leaving only the AIT. I managed to get the idle tuned and used autotune for the rest of the VE table, overall the butt dyno noticed a difference from the as purchased state. I got involved with the Nutmeg Miata Club in CT, attended several tech days and their autox day at LRP and had a blast.

Goals are ~200WHP on the stock internals and reliability for street and some autox. Learn how to tune FI.



Tired of waiting to experience FI life I decided to upgrade my 1995 M Edition, at first I wanted to keep it “original”, but the previous owner had made some changes, including a loud/boomy dual exhaust, interior appearance package (stick on pearl stuff along doors and center console, and aftermarket stereo with amp located behind the drivers seat). The amp was removed immediately and a slim one was located in the package tunnel behind the spare donut and eventual replaced the exhaust with something much quieter without rasp. After reading a ton of posts on MT and other forums I got the bug and started doing more less invasive upgrades, Tecna coil-overs, Flowforce MSPNP2 (micro PNP?), long tube headers and gutted the MAF leaving only the AIT. I managed to get the idle tuned and used autotune for the rest of the VE table, overall the butt dyno noticed a difference from the as purchased state. I got involved with the Nutmeg Miata Club in CT, attended several tech days and their autox day at LRP and had a blast.

Goals are ~200WHP on the stock internals and reliability for street and some autox. Learn how to tune FI.
Last edited by Houleo; Apr 22, 2026 at 03:17 PM.
I started purchasing parts around March, everything except the turbo kit because “The shipment is overdue, so we hope to have stock soon” I opted for the Link MX5 PNP over a MS3 variant.

Upgrade plans start with tuneup, including timing belt, water pump, front crank, cam valve cover seals, fluid damper.






Once complete went for a test drive to ensure timing was good and then dived into the fuel system. I found the typical house mouse, I believe this was how it was when I purchased it because my fuel gauge never went below E and the yellow wire appeared to have one strand still intact and during winter storage I place a bucket of moth ***** under the fuel tank area to keep them out. I hate those little bastards, some one should start a rent a barn cat app or something.




Upgrade plans start with tuneup, including timing belt, water pump, front crank, cam valve cover seals, fluid damper.






Once complete went for a test drive to ensure timing was good and then dived into the fuel system. I found the typical house mouse, I believe this was how it was when I purchased it because my fuel gauge never went below E and the yellow wire appeared to have one strand still intact and during winter storage I place a bucket of moth ***** under the fuel tank area to keep them out. I hate those little bastards, some one should start a rent a barn cat app or something.



Installed the fuel pump wiring upgrade kit and replaced the old fuel hose with Gates Barricade SAE 30R14T2. Started up to verify everything worked and no fuel leaks. The rewire kit I got from FM is very nice, but the ground and power wires are too long and the trigger wire is too short to allow me to mount the relay where I would like, I just followed the instruction and zip tied it down for now, I will probably fuss with it once the everything else in up and running well.








I keep doing everything incremental because if I mess something up I can assume it is related to the last project. Up next is replacing the remaining fuel lines, installing the ethnol content and fuel pressure sensors. Based on the space aviable in the engine bay I’m thinking of installing the ECS at the fuel filter or possibly at the fuel sender, but that space is cramped and prone to rodent issues.
Here are my current plans for wiring up the sensors.




The kit arrived a few days ago, they do pack these very well

Here are my current plans for wiring up the sensors.




The kit arrived a few days ago, they do pack these very well

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