[sperry]

Originally Posted by A1337STI

IF the heat of the charged air doesn't factor in, then Yes you wasted money.
If the heat of the charged air DOES factor in, then No you did not waste money (and yes of course it helps )

just drop your ego for 2 minutes
/*#include <ego.h> */
....and work through the logic. Basically if your FMIC is helping, then so is my crapper $3.50 shield. We've worked out on this thread that my lil crapper mod may be worth a ~ 1.3 F change in CHARGED AIR TEMP. and your FMIC is probably worth 100+ (i'de guess 200 but i dunno) but its the same thing (qualitatively speaking), both result in reductions in Temp of the CHARGED AIR going into the motor AFTER the IC.

either cold > hot . or it isn't
is 100 extra F way worse then 1.35 , Oh hell yah. its not a linear improvement , its not 100 times worse, but the first can be express as a multiple of the later. There for my shield is worth is > 0 Don't try to Quantify, just think in Binary. 0 or 1. True or false. either you want the air as cold as possible, or you don't .


printf("sarcasm\n");
okay ego back on? sure 1.5F temp change in charged air, Post IC would not make even a 1 nueton /1cm force differance. If its my car .
printf("\\sarcasm\n");

So Scott, either you were wrong when you worked out my mod could alter post charged air by 1.35 (or any number greator then 0) , or you are wrong that cold air > Hot air. take your pick

(i'm not saying 1F post IC makes a big differance, but i am saying given an accurate enough dyno, and the ability to hold all other variables constant, it could be measured ) in science that's called a qualitative result. its like binary its either 0 or 1. there's no indication of 'how much' it helped. I'm not claiming a Quantitive result, just a Qualitative.


And yes of course, BanSuvs is way way right about me changing the Shape of my intake. the MAF was designed to sit in a certain location, with a plastic breather box, silencer, and snorkel in front of it. if you change anything in there at all its possible to change how the air is flowing as it comes up to the MAF, and there for requires a tune.

I still think dry ice (while parked) will cool off the IC faster then ambient air. i'm sure at every ambient Temp (and humidity) one could figure out the driving speed where moving air over the IC is better then ice. (35 mph ish ? a wild guess)

and if my mod didn't help me for $3.50 worth. at least i got that much value of out this thread. i hope you did also

YOUR CAR IS NOT TUNED FOR THE MOD, THEREFORE YOU WILL NOT HAVE *ANY* BENEFIT FROM THE LOWER TEMPERATURE.

How many times does it need to be said? You can't reliably tune for the lower temp that heat shield is providing, so there is no benefit to having it. You say that the temp is lower, I agree, but it doesn't add any power to the motor unless you can up the boost/timing to make use of the reduced tendancy to detonate (not that there would be any significant difference from 2* lower intake temps), you won't see any useable performance increase. Or are you arguing that the density increase in the air from 1.3* of reduced temperature is enough to be considered a gain in performance? If that's the case, show me how much faster your car is with 0.00001 more hp from the extra 150 molecules of oxygen you're getting into the motor per combustion cycle.

As far as quantitive vs. qualitative... a change that has no quantitive benefit HAS NO BENEFIT. If you can't measure a difference in performance after a mod, then the mod did nothing. So what if the math and physics says the air at your manifold is 2* (or even 200*) colder, if the car isn't faster, what have you accomplished? Racing isn't physics class, it's about actually going faster than the next guy. I hate to sound like Vin Diesel, but if you're not faster than the next guy, it doesn't matter what crap you've bolted to the car.