hi everyone, kinda new to the DSM thing and wanted to know if anyone knew what the black box on the lower IC pipe on my 95 GS-T was for? i've replaced it with a hard pipe but everyone i've ask just didn't know so any ideas please let me know. thanks!!!!!

Originally posted by PSSSHH
hi everyone, kinda new to the DSM thing and wanted to know if anyone knew what the black box on the lower IC pipe on my 95 GS-T was for? i've replaced it with a hard pipe but everyone i've ask just didn't know so any ideas please let me know. thanks!!!!!

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It's a resonator. It's good your replaced it because it's a big restriction.

ok....i am going to, once and for all, relocate my supra SMIC up about 3 inches so the stupid pipes wont drag on the ground when the car gets shocks/springs and subsequently gets lowered. ok, now i need to basically cut a big hole where the stock airbox would be to accomodate the top of the IC. now i am looking where i am planning to cut, and i notice this oval hole (its inside the car where the stock airbox would be but on the sideof the sheetmetal towards the wheel well) with a plastic tube that seems to lead up into the wheel well, past the airbag sensor, then it turns and goes somewhere. what in gods name is this plastic pipe for? it seems like it may be a drain or some kind of silencer from the stocker airbox. any clues??? either way i dotn see any harm in cutting a few inches off of it.

You are talking about this right. It came on some of the earlier 2g's. I took mine out cause it was restrictive and pointless. Just replace it with some 2inch pipe.

nope, this piece actually goes toward the back fo the car....

Is it the vent that feeds "cold" air to the stock airbox through the fender.? It's not a very wide hole, but it is about 3 to 3 1/2" long correct.?

yea!

If it is part of the old stock air box and you are not using it Then i would remove all of it.

Originally posted by TurBoGs-T
You are talking about this right. It came on some of the earlier 2g's. I took mine out cause it was restrictive and pointless. Just replace it with some 2inch pipe.

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I have that on mine what is it there for.

I believe that's the intake silencer (or whatever it's called). It's useless and can be taken off. It just makes the intake sound softer, and who wants that?

It also has a fair bit of volume -about 15-20 cubic inches?- that you're having to pressurize every time you hit the boost. Which would increase lag, and -perhaps its purpose?- be a "shock absorber" for the intake tract.
I wish a competent DSMer could interview the engineers who noodled out the boost system on the cars, it'd be interesting to hear what all they were designing for, such as longevity vs. power, or (such as that odd clutch stuff, the accumulator and restrictor) control effort-levels.

I was flushing my IC today and when i was under the car i noticed a plastic box connected to the lower IC pipe. I took it out and upon further inspection i saw that it had a hole inside the pipe where it was connected that lead through a passage into the box. Was wondering if anyone knew what this was, some sort of pressure overflow or something?

Yeh. Big ol' ugly blow-molded box.
http://www.roadraceengineering.com/instructions/icpipe/2gmistryboxlg.jpg
I don't know that anyone knows what it is, but it has to be a resonator. Someone's kid must've been scared by the sound of a turbo intake someplace, because DSM just beat the snot out of themselves to make sure you'd never hear a 2G turbo spool up.
It can't be a good thing, it must add at least 20 square inches of volume to the intake tract, which means you'd get that much more lag in pressurizing the pipe. It would also be a buffer, which I suppose the dainty motor needs to keep the mighty T-25 from scattering con rod and piston bits across the roadway and out the tailpipe like so much confetti wafting over Times Square on New Year's Eve.
So far as I can find out, it's like that bizarre accumulator (or dampener) on the clutch line- just another space to fill to make sure the system doesn't just GET TO IT and do the job.
I grabbed some 2" exhaust pipe the other day, I plan this weekend on yanking out that intake tank and splicing in some nasty old steel to see if it matters. I'll let you know.

And from what I understand, it only appeared in 95 and 96, so it can't be that important. My car didn't have one.

mine didnt have one either!

Was your car stock when you got it?

its the Silencer that came on the 95-96s
you can remove it by getting lower I/C piping or something

It's suppose to be a silencer, just take that damn thing out of there, my had the same thing, I pulled it out and the spool up was a little faster and louder

Originally posted by Vinnie
It's suppose to be a silencer, just take that damn thing out of there, my had the same thing, I pulled it out and the spool up was a little faster and louder

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Me too

I worked on a '96 GSX and it had this box on the LICP also.
Gooberlog

My buddy's 95 Talon had one too. I was like "WTF??" when we did his supra sidemount upgrade...

Originally posted by FourG63 97GST
its the Silencer that came on the 95-96s
you can remove it by getting lower I/C piping or something

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and that sums it up.

I pulled mine out and tossed it, then I took a piece of steel tubing put it in where the resonater was going strait into the smic and attached my existing turbo outlet hose to the other end, then I blew that hose twice... had to take the pipe back out and bead it then it clamped and sealed no problem.

96 GS-T Spyder here... I didn't have one...

mines a 95 andi dont remember seeing one when i cleaned my IC. I'll check again this weekend

I was removing my bcs today when i looked down and saw that box your talking about. And i thought to myself that it is probably something they put there to slow the car down more. its weird that i found this forum. How do you remove it. is it possible to remove it without replacing the whole intercooler pipe? how are you putting on steel exhaust piping?