mx5dude69

Ok, I searched the forum and came up with this:
"Rule of thumb, 1600F is a pretty reasonable "max" for cruise or boost."

And this https://www.miataturbo.net/forum/sho...temperature%22 which tells its better to use a bung near the car as oposite to the location just off the turbo.

since i'll be retarding from 12 to 6 with a MSD, on a 1º per pound of boost scale, and this brings the EGT to higher temperatures, the question is:
Can a AEM Wideband 02 deal with the heat if placed just a bit below the turbo? Tony told me he made the bung a bit down for FM Heat Shield clearance, but it will still be close. Or as a general rule, it should always be placed further away?

I'm just asking cause from what i read before, as the EG go into the DP and expand, they cool off, therefore in my understanding this would cause misreadings from the wideband? Or am i just talking ****, and the location down below is not a problem and my wideband can still give me accurate info?

thx again!

olderguy

iTrader: (19)

I would add another bung on top of the DP, before the cat for the WBO2

mx5dude69

so use 2 you mean?
stock goes to start of DP, and down near the cat fit the wideband.
and which one do i use to connect to the ecu?

and sorry with all the questions, but why should i keep both if only one connects to the stock ecu?

olderguy

iTrader: (19)

Narrowband to the ECU and monitor with the wideband. If you insist on using the narrowband simulator to feed the ECU, put a blank bung in the top hole.

mx5dude69

i see. there's no benefit to the stock ecu from getting a more accurate reading from a wideband. it will behave just the same, right?

olderguy

iTrader: (19)

The narrowband, to me, is preferable since it is a chemical reaction and not subject to change where a WBO2 can go out of calibration. The ECU will behave the same with either if they are accurate.

mx5dude69

thx, you tha man...