Black Majik MSP said:
HAHA, you think plastic doesn't heat soak. Ask any of the MSP owners who still have the stock IC pipes to show you their engine after they have been driving hard or for a long time out in the heat.
I assume you have IAT readings to back this up? Or are you just doing the old "I'm touching it and its hot, so its gotta be hot".
Plastic acts as an insulator, protecting the aircharge from the hot engine bay. On the mazda 6, numerous tests have been done on the stock airbox, with air intake temp readings from scanners (not hands), through various mods and intakes, to see how the air temp was effected when certain actions were done. (Like gutting the airbox).
People who switch to methods which use shorter pipes drawing air in from the SAME area as the stock airbox, but alumnium instead of plastic, have reported massive increases in temperature. The plastic stock air intake system IS protecting the air charge from heat, as proven through temp readings.
And your times for the Mazda6 V6 are wrong
No their not. They are correct times for the 6s MTX's performance. As mentioned earlier, and through provided url of time slips, the Mazda 6s MTX is much faster then originally tested in early 2003.
Road and Track's latest article on the Mazda 6 was
June 2004
Page 137
Long Term Test (Mazda 6s MTX)
And they clocked the 0-60 at 6.4 seconds.
Further more, if you look at time slips for many of the 6s's drag racing, most of them are sub 15 seconds STOCK. 7.2 second 0-60 times don't net you a 14.82 in the 1/4.
Car#... 57
Class... T
Dial ...
R/T ... .419
60' ... 2.285
330... 6.315
1/8.... 9.628
MPH... 74.26
1000... 12.468
1/4 .... 14.874
MPH ... 93.60
There's a nice plate of speed evidence for you to digest.