TRD Supercharger Air Box "trumpet" diffuser
#1
TRD Supercharger Air Box "trumpet" diffuser
Sooo-
Got the supercharger installed this fall, and am now attempting to find ways to improve on the power this thing can pull out. I'll get one of the NST 9.5 pulleys as soon as it's available again. I've already removed the hydrocarbon filter, but I'm also wondering what the purpose of the white plastic "trumpet" diffuser is. I can only imagine that it is supposed to keep the incoming air streamlined and in the same direction, but is it really worth the extra resistance you're adding?
Any help is greatly appreciated, I haven't been able to find ANY information on this.
Got the supercharger installed this fall, and am now attempting to find ways to improve on the power this thing can pull out. I'll get one of the NST 9.5 pulleys as soon as it's available again. I've already removed the hydrocarbon filter, but I'm also wondering what the purpose of the white plastic "trumpet" diffuser is. I can only imagine that it is supposed to keep the incoming air streamlined and in the same direction, but is it really worth the extra resistance you're adding?
Any help is greatly appreciated, I haven't been able to find ANY information on this.
#4
I didn't notice much of a difference when I switched to the 110, but it was also only 40 or so miles after the supercharger was installed. The only real reason that I got it was because I knew the TRD supplied BPV wouldn't handle any more boost (for an upgraded pulley).
I read a bunch of opinions that said the ECU 'learning' doesn't affect performance, but I swear that it pulls harder after 150 or so miles than it originally did.
Anyway, any other opinions or testing done on the air intake diffuser? I don't know whether to toss it or leave it- and I won't be putting a CAI in.
I read a bunch of opinions that said the ECU 'learning' doesn't affect performance, but I swear that it pulls harder after 150 or so miles than it originally did.
Anyway, any other opinions or testing done on the air intake diffuser? I don't know whether to toss it or leave it- and I won't be putting a CAI in.
#6
Thanks for the info, confirms what I suspected. The thing that bothers me is it seems like it would add resistance to sue flow both because of the plastic mesh on the inside of the diffuser, and how close the diffuser inlet sits to the back side of the air box. Guess i'll just have to do some testing...
#7
Originally Posted by MIswTC
Thanks for the info, confirms what I suspected. The thing that bothers me is it seems like it would add resistance to sue flow both because of the plastic mesh on the inside of the diffuser, and how close the diffuser inlet sits to the back side of the air box. Guess i'll just have to do some testing...
Thread
Thread Starter
Forum
Replies
Last Post
ColonelSanders85
Scion tC 1G Forced Induction
3
12-09-2020 09:44 AM
rain7905643
Scion tC 1G Forced Induction
12
06-13-2018 05:34 AM
ColonelSanders85
PPC: Engine / Drivetrain
18
03-03-2015 03:31 AM
Godfryness
Scion xB 1st-Gen Owners Lounge
2
01-02-2015 11:18 PM