clearly your knowledge of thermodynamics is a long way short of whats needed to be an authority on turbo technology and gas flow , if you want to pump air into the turbo that's up to 100 degrees hotter than it needs to be you are free to do so , sourcing the input air in the engine compartment means much hotter air is entering the system than needs to be , that may get even hotter in the turbo leaving the intercooler unable to work optimally , a car producing this level of power will produce even more heat than standard , if you have a red hot turbo( which is water cooled?) then your problems go beyond inatake air temperature and fuel efficiency go ahead waste money lose power see if I care
If you could read the reply you're trying to pick apart it would be massively helpful - none of your reply applies to the situation I have typed out & you had to try take the only part you did read, literally.
I'm not going to waste my time structuring a proper response, really isn't worth my time.
This has 0 to do with knowledge, my statement is backed up with fact from testing.
Stock enclosed box vs open filter - both intake air temps are EXACTLY THE SAME!
Cruising at a speed of anything over 40mph - these temps are 2C BELOW ambient with EGT temps of 600C + dependant on speed & load.
That's before the meth kicks in.
I am more than happy in the know this is decent and nothing like the ramble you're posting.
As said, proven, tested, FACT.
Not an over inflated ego that feels the need to spam & try to belittle within an owners thread with a pretty incredible build.
Good point for the TTS airbox configuration, nice build, congratulations. I do have a caveat though, My car, 2012 TTRS has a different airbox, it has an air duct opening on the side of the airbox that admits additional air in the form of heated engine compartment air. I live in Florida, very hot. I was concerned about the 140-160 degree IATs. Typical IATs at 120 kmh cruising were about 136-142 degrees. Added a larger intercooler, dropped IATs by about 10 degrees. Cut off the air duct opening and added a ram air tube that admits ambient air from a venturi located in the drivers side lower air duct. This addition lowered IAT by another 10-15 degrees, it works so well that as I accelerate from 120 kmh I can watch the IAT drop, in one instance from 126 degrees to 118 degrees by the time I reached 150 kmh. You can watch the IAT drop in real time on acceleration due to the ram air effect.
So, I'm pretty sure that if you added the same type of ram air kit to a TTS airbox you would experience the same thing? I use a 034 closed top system, with an open system you're stuck with heated engine compartment air.
@ Audittnumb, great build and great thread, ty!
Didn't see this as it was buried into my own quote so I copied it out.
You are spot on, TTS box is decent and fine for 2L TFSI stage 2 power levels with no restrictions, but on the higher side of stage 2+ over 350hp / 365ftlbs ISH they become a bottle neck.
Where as I have seen that the RS box isn't a noticable enough restriction at stage 2 on the 2.5!
Interesting you measured a nice noticeable different! I as the OP is - also already run a tube aimed at the filter.
It is a very good point that these make a difference and with your testing really showing it's worth.
I might try do some more testing with this removed from the open filter and connect to the TTS box, but there isn't an opening like the RS box has to do so... So modifications are needed!
I myself am going to now stop spamming TTNumbs thread though and let him carry on sharing his mega build
