l2r99gst

iTrader: (2)

I was going to look at the 96940011 ROM and patch it based on mrfred instructions, but I just haven't had time yet.

I have had my GM sensor sitting here for a while now and haven't even installed it yet. I haven't looked at the ROM yet because I am going to use my SSi4 for the input and sensor reading.

mrfred

iTrader: (50)

Finally installed the sensor and wiring this morning. Working as expected. I'll have some pics and logs later this morning.

mrfred

iTrader: (50)

Added a pic to the first post in this thread showing my install. Here is a plot I got today of manifold air temp versus MAF air temp during a 3rd gear pull. Outside air temp was in the low 60s.

l2r99gst

iTrader: (2)

Nice data, mrfred. Hopefully, I will be installing mine this weekend as well.

If you could, it would great to see a multi gear pull, to see how much the IATs will increase and continue to climb.

You are on the stock IC, correct? If so, any plans on upgrading? I can't decide myself between the ETS 3.5" or ETS 4".


Eric

mrfred

iTrader: (50)

I can get a 2nd thru 4th row tomorrow on my way to work. :-) I'll be going with an ETS 3.5" as soon as I can round up the cash. Probably getting an APS DV as well for the high boost when running E85.

nothere

iTrader: (23)

the blue line is iat up by the throttle body right? the red line is air temp at the maf?


red line seems to be backwards, as you are in boost you are sucking in vast quantities of fresh air.(or are you measuring after the turbo) while you are at idle the temp goes up. At least that has been the indication I have seen logging maf ait.

mrfred

iTrader: (50)

Blue is temperature before the turbo. This is a factory air temp sensor in the MAF. Red is the GM sensor which is located in the UICP just before the intake manifold.

nothere

iTrader: (23)

thanks, that makes sense.

RazorLab

iTrader: (8)

Very cool as always mrfred. As soon as my intake mani comes off I will be doing this as well.

tephra

iTrader: (6)

so its 20 degs difference at redline?

RazorLab

iTrader: (8)

Looks like it goes from approx 78F to 85F

tephra

iTrader: (6)

no I mean 20degs difference between MAT and IAT.. so the turbo is heating up the air by 20degs F...

RazorLab

iTrader: (8)

Ah yes. I'm sure the turbo is heating it up more than 20F, then the intercooler is cooling it off.

So who will be the first to put a temp probe in the LICP?

tkklemann

iTrader: (6)

Yipes. Looks like after the 5750 rpm mark, the stock I/C just can't keep up with the temperature rise from the turbo spinning so fast. (And blowing all that hot air)

I found this surprsing because the amount of airflow hitting the I/C is rising as the rpm's rise too, and you would think keeping things cool.

I am going to start to install my stuff, but I am mounting mine in an unused bung on the backside of the manifold, directly next to the brake booster line fitting. I am putting it there because I had a spare manifold off the car, so it was easy for me to just drill and tap it. Plus, it will be really nice because it will be hidden back behind the manifold.

Damn, I can't wait to get this to start to get all nerdy again on my car, looking at the turbo efficiency and what boost levels will be perfect for my car...

mrfred

iTrader: (50)

Here's 2nd thru 4th with a few seconds in 5th as well. I'm ready to test intercoolers if someone wants to send me one. :-)))