A few weeks ago, fellow R33 GT-R owner, OCD clean freak and buddy Tom Smith messaged me to let me know that, not only had he been inspired to do a mod for his car from something he had seen on this blog, but he had actually taken measurements to prove that, indeed the mod had beneficial results!
|Tom's gorgeous 33!
|You can see the lines upon where the cuts were made
|Added foam to prevent air leakage
|You can make out the ducting from behind the grill
Tom, on the other hand, runs a Power FC commander which measures intake temperature. And he made a proper version of this air inlet scoop, as shown below - sides welded shut and the entire thing beautifully powder-coated.
|First, as you can see Tom had the sides welded shut
|And then powder coated matte black
|That looks absolutely FANTASTIC! OEM like!
|Likewise you can see the scoop behind the grill.
Doing the math, that's about 10% cooler!!
He also found "what is immediately apparent is how much more crisp it is on throttle response" - and yep this is exactly what I recall too. It's as if the engine finally has the correct amount of air going into it in the first place.
So I suspect those who remove the stock airbox have similar thoughts - they can sense the instant response - but remember as temperatures rise under the hood, my thinking is that this kind of fresh air scoop is the only way to get the best of both worlds - more air volume but cooler.
Big thanks to Tom Smith for doing this and providing me with the photos and the numbers. I wonder if there are any other mods I did in the past that others can improve on. If so, PLEASE let me know!!