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How to make your 1.6 MX5Link G4X PNP...PNP

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Old Oct 1, 2024 | 03:24 PM
  #21  
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Good to hear. I figured with 3 years since the original post that Link probably would have identified some of the common complaints and done something to make them less annoying.
I figured that the NBs would be better since they supported more of those features in stock configuration.

Not to request a essay, but could you point out some of the highlights of going from something like MS3 (or Speeduino) to a G4x? Realistically, I think my car runs pretty well on Speeduino, but I've starting hitting limitations with what it will allow me to do, and there have been plenty of bugs and headaches along the way.

I've done a bit of research into the Link, and was really impressed with the flexibility, such as triggering engine protection on whatever parameters you want to, having a 3d table for launch control, more IO support, being able to add rows/columns to fuel and spark maps, etc... Basically it seems like a really flexible platform with a lot of customization to allow you to setup a tune exactly how you want.

Are there any things that the G4x does better that really jumped out to you when you started working with the platform (and over the past 3 years now)? I know you mentioned drivability in the original post, if you could elaborate on that I'd be interested to hear more about it.
Old Oct 1, 2024 | 09:44 PM
  #22  
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Link didn't really change anything, but Mazda developed the Miata from the early 90's to mid 2000s, and Link just came out with new PNP units for those later models.

I should clarify too, if you use the original MX5 link which works for 90-95 in a 94-95, you'll have fuel pump control, sequential fuel, and TPS. It's just the 1.6s that have to deal with the issues outlined at the beginning of this thread.

As for the benefits of Link, they're pretty much what you mentioned. Flexibility, readily available pinout (although I notice MSPNP units now have this, but not available in the software), add/subtract columns, 3d tuning for fuel, ignition, and pretty much anything else you want, etc.

Main things that jumped out at me is start up, I feel like I'm constantly tuning and retuning cold start and start up on MS. Like, always. It just never seems to be consistent, especially car to car. I had my car tuned pretty well on my MS3 basic, but I had also lived with it for a few years and tweaked it a lot along the way. I can't do that with a customer's car, and we often have to retune in winter when we dyno in summer or vise versa. It was fun at first because I could see the changes I made make improvements, but trying to make a standalone as good as stock is not what gets me excited. No such issue with Link, mine starts up amazing in every condition I've thrown at it. I've loaded my tune and changed injector settings and I/O settings in a number of other links and they only needed minor tweaks to run the same. Only car I had a little issue with was Mobius' SM's twin disc. If revs even begin to fall, it's already stalled.
Sorted that out (I think?).
Old Oct 1, 2024 | 11:28 PM
  #23  
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Thanks Curly, that's all super useful info.

I know that they're not as popular here, but I see the G4 get recommended in a lot of tuning circles and the price points is close enough for me to be able to justify it (excluding the used market).

Being able to add rows to tables shocked me. I've had many times where I just wanted one or two more rows to add a little resolution at a specific cruising rpm or load level but have to shuffle the whole table around. When I saw that link could just add a row I was super impressed.
Old Oct 1, 2024 | 11:47 PM
  #24  
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Yup, I like that feature too. Keep in mind there’s still a 16x16(?) limit to fuel and ignition tables, all the others are 12x12. But they can be as big or small as you’d like, and you can change axis to whatever you’d like. Used this on an e36
to change traction control slip % vs rotary **** position.
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