Fast acting IAT sensor

[nos92mx3]

awesome! So you just pulled the old IAT sensor from the VAF (little plastic nipple), sealed it up, then setup the new sensor on the charge pipe, then connected the 2 wires? seems pretty damn simple lol

Deleted my vaf I just simulated the vaf using a 4 wire tps and input the signals into my fic, since they are both poteniometer They should be similar in operation. I did some data logging with my fic plug in the values and did some very arach tuning, good to go

GM IAT are fast acting too, been looking them up online lol seeing what I can find at the wrecking yard so I can get a good placement on it.

http://www.ebay.ca/itm/Intake-Air-Temperature-Sensor-Connector-Kit-/250878738632?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a6989c0c8#ht_500wt_922

I know it's more expensive, just showing it's fast acting though...could probably find cheaper.

Unless you are on a standalone you cant use a GM IAT sensor on the BP ecu, they use different values. Hence why im so excited i found a useable on the cheap.


Got back from another drive with absolutley no tuning involved it already drives 10 x better than before, I did notice after a couple of 3rd and 4th gear pulls it ran rich for a split second on cruise afterwards (instead of 14.5-15.5 was closer to 13.5-14) Im assuming this is because there may be some residual WSW (meth/water duh) left on the sensor, no big deal.

Other than this its fantastic.

[nos92mx3]

http://www.miataturbo.net/showthread.php?t=23524

For the cheaper gm alternative

[Lex]

The great advantages of WMI is that you are able to increase timing. Did you just increase base timing or did something else?

[nos92mx3]

Yes i have bumped the base timing a few degrees.13* on a bp10 Though I still have timing pulled out under boost... 15-17 psi on a t3

I was also under the impression that the Iat sensor had a large effect on ignition timing, no?

[Mazda_Powered]

AEM FIC? wow, did you get a good deal on it? lol that's almost in the same cost range as MS.

[nos92mx3]

AEM FIC? wow, did you get a good deal on it? lol that's almost in the same cost range as MS.

Dont knock it till you try it.
It did 2 things for me
1. very easy to tune.
2. very easy to wire.
The ms i tried before and could never quite get it right, I had this up and running in about 2 hours.

Besides it dosent hurt to be different does it?

[Lex]

Do you have a way of monitoring knock (a wideband knock sensor) .... or getting on a dyno and looking for MBT? That would be the way I would be adjusting timing

[Mazda_Powered]

Dont knock it till you try it.
It did 2 things for me
1. very easy to tune.
2. very easy to wire.
The ms i tried before and could never quite get it right, I had this up and running in about 2 hours.

Besides it dosent hurt to be different does it?

not knocking anything lol just haven't heard of it being ran on a BP setup. Very interesting, especially since you were able to remove your VAF.

[nos92mx3]

Do you have a way of monitoring knock (a wideband knock sensor) .... or getting on a dyno and looking for MBT? That would be the way I would be adjusting timing

I do have a turbo xs knocklite, also ive been going by reading plugs...

[Lex]

I do have a turbo xs knocklite, also ive been going by reading plugs...

Does this EMS give you full control over timing?

[FE3-323]

i wonder if there is any benifit to this sensor when using an OEM ecu

[nos92mx3]

i wonder if there is any benifit to this sensor when using an OEM ecu

Dont know, who wants to be a guinnea pig?

Does this EMS give you full control over timing?

It allows timing to be retarded but not advanced, not a big deal when i can just bump the disty...

[FE3-323]

i don't know how fast reacting the OEM IAT is or how accurate it is after so many years ya know.

PS does polarity matter?

[Lex]

It allows timing to be retarded but not advanced, not a big deal when i can just bump the disty...

Heh, I know exactly how that works ...

It is somewhat limiting in that you can't change the timing curve but regardless, this seemed to be a solution that worked well for you.

[nos92mx3]

Heh, I know exactly how that works ...

It is somewhat limiting in that you can't change the timing curve but regardless, this seemed to be a solution that worked well for you.

Define timing curve.

The igntion table is 21x17 rpm x map based...
Sure i have to use the bp10 timing table as a base map.