Jump to content

Photo

AIM MXS in an NB

- - - - -

  • Please log in to reply
10 replies to this topic

#1
RazerX

RazerX

    Member

  • Members
  • PipPipPip
  • 318 posts
  • Region:N. Cal
  • Car Year:1999
  • Car Number:11

Is anyone using the new AIM 5" MXS in a NB?

 

If so did you have to splice into the harness or is there a 'connector' that you can plug in?  Working on the ECU / harness under the dash is a major PITA.  

 

So looking for advice, best practices, etc...

 

thanks in advance.

 

 


 - Speed

 

 

We have a Winnah! - Won their 1st race... Congratulations! Survive the 25, NASA Thunderhill - Survive the 25, NASA Thunderhill Bona fide - A bonafide Spec Miata driver

#2
ChrisA

ChrisA

    Veteran Member

  • Members
  • PipPipPipPipPip
  • 660 posts
  • Location:Richmond, VA
  • Region:NCR
  • Car Year:1999
  • Car Number:58
The NB really doesn’t have any useful information to pull from it. So essentially you will be installing new sensors and running line to them for the MXS. Yes, it’s a PITA to do and will take longer then you think.

Chris

 

Happiness is a dry martini and a good woman ... or a bad woman.
- George Burns


#3
Jeff Wasilko

Jeff Wasilko

    Member

  • Members
  • PipPipPip
  • 272 posts
  • Location:Boston, MA
  • Region:NER
  • Car Year:1995
  • Car Number:08

As was said previously the OBD2 port won't give you much useful info. You could get water temp from it, but I think that's about it. The update rate for the channels is too low.

 

Taking the cluster out and using a flat piece like http://www.ironcanyo...m-mxs-and-mxl2/ to mount the dash gives you a lot of room behind for wiring.



#4
RazerX

RazerX

    Member

  • Members
  • PipPipPip
  • 318 posts
  • Region:N. Cal
  • Car Year:1999
  • Car Number:11

Yes, using the OBD port is too slow.  So I need to tap into the tach line, I guess.   If you remove the cluster, you do lose a few OEM guages, and to be honest only the fuel is the worry.  Has anyone made a custom file to replace the fuel gauge?


 - Speed

 

 

We have a Winnah! - Won their 1st race... Congratulations! Survive the 25, NASA Thunderhill - Survive the 25, NASA Thunderhill Bona fide - A bonafide Spec Miata driver

#5
Mark

Mark

    Member

  • SMembers
  • PipPipPip
  • 229 posts
  • Location:Los Angeles
  • Region:Sopac

ahhemm.... that banner is paying for itself. LOL.


  • Alberto likes this

Mark
markn@ironcanyonmotorsports.com
Iron Canyon Motorsports

Make it Rain - Made Paypal donation of $100+ Bona fide - A bonafide Spec Miata driver

#6
Jeff Wasilko

Jeff Wasilko

    Member

  • Members
  • PipPipPip
  • 272 posts
  • Location:Boston, MA
  • Region:NER
  • Car Year:1995
  • Car Number:08

Yes, using the OBD port is too slow.  So I need to tap into the tach line, I guess.   If you remove the cluster, you do lose a few OEM guages, and to be honest only the fuel is the worry.  Has anyone made a custom file to replace the fuel gauge?

 

Iron Canyon has a Fuel Level sender that works great. http://www.ironcanyo...cm-fuel-sender/

 

However, AiM added some new smoothing/averaging functions and people are saying you can get away without the ICM box now (and just use the built-in smoothing).

 

I created a custom sensor map for the ICM box (and my 1.6 tank) by pumping out all fuel and adding a gallon at a time. I'd be happy to share that as a starting point if that would help. Not sure how close it'd be on a NB tank.



#7
Mark

Mark

    Member

  • SMembers
  • PipPipPip
  • 229 posts
  • Location:Los Angeles
  • Region:Sopac

The real issue is converting the resistance signal from the in tank sender to a voltage and maximizing that voltage range from empty to full so that the AiM can understand the input. Using as much of the analog channel 0-5v range is a big deal. Any filtering/smoothing done on the AiM side is all goodness either way. It is about time more was done in this area. What they have now helps but it is still pretty basic. It will improve I am sure.


Mark
markn@ironcanyonmotorsports.com
Iron Canyon Motorsports

Make it Rain - Made Paypal donation of $100+ Bona fide - A bonafide Spec Miata driver

#8
RazerX

RazerX

    Member

  • Members
  • PipPipPip
  • 318 posts
  • Region:N. Cal
  • Car Year:1999
  • Car Number:11

Sorry guys, I know some, had an old Mychron gold but clearly still don't know what I don't know.

 

I think my current strategy is

  1. to get it setup and working with the OEM gauges still there.
  2. See if I can use my existing Air/Fuel gauge.  I have an innovate gauge with a wideband (LM2 i believe) and think there is a way to take the signal from that import it.  Of course AIM sells a lamda controller which is the easy route
  3. Remove the OEM gauge cluster and make pretty. :)

Should I even mess with the Innovate or just spend the $$$ and buy something new?


 - Speed

 

 

We have a Winnah! - Won their 1st race... Congratulations! Survive the 25, NASA Thunderhill - Survive the 25, NASA Thunderhill Bona fide - A bonafide Spec Miata driver

#9
Steve Scheifler

Steve Scheifler

    Veteran Member

  • Members
  • PipPipPipPipPip
  • 2,816 posts
If the Innovate works, use it. It should be a simple thing to map the default linear output from that into the AIM (or alternately remap the Innovate to output the default on the AIM). As seems the case with all their stuff AIM gets 2x the going rate just because they can
Instigator - Made a topic or post that inspired other Broken record - You are starting to sound like a broken record.

#10
Jeff Wasilko

Jeff Wasilko

    Member

  • Members
  • PipPipPip
  • 272 posts
  • Location:Boston, MA
  • Region:NER
  • Car Year:1995
  • Car Number:08

The LM2 will work with the AiM dash. It just outputs a 0-5V signal.



#11
Steve Scheifler

Steve Scheifler

    Veteran Member

  • Members
  • PipPipPipPipPip
  • 2,816 posts

The LM2 will work with the AiM dash. It just outputs a 0-5V signal.


Sure, they all do, but you need to give the dash a translation table for volts to AFR, or at least two points assuming linear output. There isn’t a universal standard for that. Many widebands also permit remapping their output to match the expected input for the receiving logger/equipment.
Instigator - Made a topic or post that inspired other Broken record - You are starting to sound like a broken record.




1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users