Yes indeed

Now if my meth refill would just get here before the weather clears up...

 

I have recently been able to log intake temperatures in a more systematic way, to produce graphs of temperatures against time. The two plots below show temperature differentials (airbox to ambient, and approach--IAT at the manifold to ambient) for two commutes of about 10 minutes each.
The top one shows an evening commute (5pm, 51F ambient) and the other a morning commute (8am, 53F ambient.) They reveal some of the things I've been saying about measuring intake temperatures: they have a very high variance, remembering that these are first differences, so large variances have already been removed!) More discussions of the graphs are available on my website: http://gandini.unm.edu/PGpages/Inter...ataLogging.htm

 

I've got a used Alta core I'm getting ready to install - someone had mentioned some mods are needed to get the most airflow. Can anybody suggest a good thread to read?

 

Phil, nice numbers and cool charts too. Thanks for posting.

PGT, sorry can't help with a thread reference.

 

Mmm, can't think of a specific thread at the moment, however you might be thinking of mods that include a Ram Intake (or the newer DFIC intake, which will actually work well with the Alta core--all ICs are offset to the left on the Mini) and the Alta diverter with an extended front skirt to prevent airleak between the IC and the rubber seal above the radiator. Other than these, I can't think of any mods that would make the Alta IC more efficient.

 

I think the most important thing when using these big top mount ICs is to insulate the sides & bottom so they don't pick up engine heat. The way these extend back towards the really hot parts of the engine (exhaust header) is a serious drawback. My gallery has pics of what I did to the stock IC, and (IMO) this is even more critical for a bigger TMIC.

 

I think I've inadvertently discovered some hidden fresh air vents in my bonnet....



...after removing the headlight washers. I'm already thinking about how to get more fresh air to my CAI using this one....



What do you think Dr. Phil?

 

Well, ... it's different, and creative! It doesn't look so good to me, and it might not offer too much additional airflow. You could ream them out to increase the area. The passenger side one is pretty useless, but the driver's side one is in the right location. I found it hard to get the ducting from things on the bonnet to the airbox. My FAD is a pretty complex component, and this headlight source might offer even more challenges. But, wtf, give it a try!