MSefi.com read only forum (Jan.15,2018)

Now that I have parts in hand, um, I have a specific question;
Can an open element IAT be mounted vertically, from below?

The hose barb on the MAP tipped me off...

Sam

I've been using a Veeder-Root LCD tachometer on the PowerArc. I'll put the scope on it before I swap the ignitions.

I been searching for how not mount a MAP and IAT. Do you know of any absolutly-do-not-do's ?

Sam

Ian,
I wrote PowerArc and asked about the tach signal.
"current limited 12V squarewave" was the reply.
Sounds good to me, but I haven't your experience.

Sam

Been 25 years since DeVry.
Looks like I get to see if the old O-scope works...

Got the intake built;
Sam

Ian,
I'm planning on fuel only at this point.
I have a stock '91 ingnition. I'm using the tach output.
I also have a PowerArc to install when I get closer to done.

Sam

Been reading up on EGT on Landracing.com. Seems any application where EGT nears 1500 F, folks start looking to back off the heat. Since this is within the operating range (barely) and only for a short duration (3 minutes), a planar 4 wire is in my future. A K thermocouple within an inch or so of ...

Mike,
Thank you! That was the info I needed. EGT of less than 850 C/ 1560 F.
The test notes were good reading.

Sam

Eric,
How about another angle; view the O2 sensor the same as a spark plug. Toss after every pass. Manufacturer data lists extreme testing and repeatable excursion parameters; i.e.; it's gonna fail. Because I haven't toasted sensors in my motor, it's unknown how long they will last in my ...

Just got off the phone with a Bosch application type. He didn't think reversion would be a problem in a steady state operation, but 400 deg C is what the sensor wants. It will take excursions to 950 C, but for only a few seconds.... I'm betting EGT exceeds that real quick.

Are there any other ...

Thanks for all the replies.

How far should an O2 sensor be from the head?
How about using a wide band on the rear clyinder and a narrow band on the front (if it will take the heat)? The idea being to use the NB as a double check of the WB, not as a tuning input.

I had it running on a carb just ...

With hat in hand I beg your indulgence,

I am planning to install a MicroSquirt on a LSR specific 1000cc turbocharged Sportster. My concerns relate to placement of the O2, MAP, IAT, and a head temp sensors.

I should add that the sensors have to fit the as-built.



I will send pics on request ...