[apk919]

Originally Posted by Mag

but the MAF is really really "far" away from the TB and the fact between it is the rubber inlet and abs plastic on the box that act like heat gaskets. just find it hard to believe air rushing downstream would still yield such high heat soak. Also when i was monitoring the IAT, the temps moved really quick up and down, quicker than I guess heatsoak can. The TC4_3 IC inlet temps behaved more like a heatsoaked location would.




but that's cos that's the intake charge temp that goes direct to the intake manifold... as opposed to SC. I mean on an NA, there'd be no other place to put it.

Agreed. I was just wondering whether Lotus decided there was no need to change the location of the IAT sensor point.

Originally Posted by Mag

if you are indeed correct about this, i dont mind tapping the other stock tube and getting data there. I have an extra yellow sensor probe as well as thermo wire twist probe.

That would probably go a long way toward answering the question...

Originally Posted by Mag

OIC what you mean, right increeses in speed followed by heat transfered air... that makes sense. But this does coincide with the IAT data under the theory that it is post SC. JUst might not be able to see this in the graph made off the innovate data because 1) changes are almost instant. check the graph using the software, follow the time line towards the end where the cars running a bit harder, and watch the IAT and Load, there's definite correlation. 2) Keep in mind i was cruising to work for this session and not driving as one would in a spirited fashion. the session where I took 2 hard consequetive pulls was accidentally deleted, but reflected the correlation better because the fluctuation in IAT was much more volatile. There's a typhoon warning for tomorrow so might not get a chance to log some hard pulls but will do so and email to you asap.

right which also why it would rise inline with throttle when compressed...

you might be right, but hope not...

It's the schematic that has me convinced that the IAT shown as an OBD-II parameter is from the TMAF... the TMAF is labeled IAT in the schematic, and there's a large note saying that the temperature signal from the TMAP is not used.