supercharger and exhaust??

[carboncrazytc]

is it ok to only change the s-pipe when going with forced induction. from what ive heard it is good to have some back pressure.. any input??

[navylife59]

Back pressure (BP). Now that is a topic worthy of its own encyclopedia volume. I will keep it short and simple as it pertains to the TRD S/C setup.

BP is good and bad. It all depends on your application and power band. The Stock TRD S/C makes alot of power down low 3.5k - 5.5K with 4K-5K being the sweet spot. With an aftermarket header, s-pipe, and axle-back, my power band shifted to 4K-6K with my sweet spot being 4.5K-5.5K . Now that I have a full custom 2.5" exhaust and no cats, my BP is minimal. I have not dyno'd yet, but I can tell you that my power band has shifted further up. One thing to notice is that I am not making full torque either. This is OK since I my goal is a power level that needs a more open exhaust.

To sum things up, some BP is good for the TRD S/C. An s-pipe is the biggest restriction in the exhaust so it definately should be replaced. That and an axle-back is all you need. The OEM header and mid-pipes flow well enough for making power below 250WHP.

NOTE**** There is a company out there that makes a variable restrictor valve that changes the BP in the exhaust. Hook the solenoid to an e-manage to vary the BP to broaden the powerband.

[ac3 b00gi3]

yea bro i'd definetly get a bigger S-Pipe .. less ristriction .. more exhaust flow .. more power .. altho if it was a turbo it would be better since the turbo works off exhaust gasses .. but i guess you'd get some power from the s/c anyways

[Imagin]

Eh if anything put on a header before you have the SC installed. A 2.5 inch exhaust (or whatever 2' size piping the tC has stock) is more than enough backpressure.

Now if you have a custom 3 inch exhaust, you better have some serious boost going.

Other than that a header/spipe/exhaust wont hurt you a bit. The piping is small enough that you get backpressure, with minimal restrictions to flow from the aftermarket parts

[nrgwar]

so i found a s-pipe that is a little bit bigger then stock on craigslist.org/ i would like to know what will this after market s-pipe do for me ? i have a non turbo/charged TC

2006 scion TC with TRD exhaust being my only mod.

will this S-pipe gain me more HP ? is it smog legal ? also who ells makes s-pipes & WTF is a s-pipe ?

[navylife59]

It is an s shaped pipe that is between the header and the mid pipe. Basically it snakes under the oil pan and over the rack and pinion. Scion built it with cheap bends that make it too restrictive. It is completely smog legal (its just a pipe) and will free up some back pressure making your exhaust system slightly more efficient. Yes a lil more HP. Probably anywhere from 3-8 WHP, if that much. Definately a place to start.

[nrgwar]

i found the same spipe on killertc for 180$ and i can buy it for 100$ i just hope that this will allow my auto tc to move a bit faster well the wifes TC is this a good buy & would this screw up my factory warenty ?

Originally Posted by navylife59

It is an s shaped pipe that is between the header and the mid pipe. Basically it snakes under the oil pan and over the rack and pinion. Scion built it with cheap bends that make it too restrictive. It is completely smog legal (its just a pipe) and will free up some back pressure making your exhaust system slightly more efficient. Yes a lil more HP. Probably anywhere from 3-8 WHP, if that much. Definately a place to start.

[JRBRUIN7@aol.com]

In regards to the S-pipe, is it possible to change the s pipe and not have the CEL light come on? Or does that only happen if you replace the header?

[carboncrazytc]

only happens if you replace the header most s-pipes come with an extension on them so u wont throw an error atleast my invidia s pipe did.

[nrgwar]

wherecan i find s-pipes for sale online at ? or even yet where can i find scion tc aftermarket parts at online (non ebay)

[ac3 b00gi3]

my header came with an S-Pipe .. u can try this website .. this is where myself and alot of people who attend scion meets shop for most of there parts

Scion TC

[carboncrazytc]

yeah hop up racing is where i got my s pipe for like 140 good price.

[ac3 b00gi3]

i was goin to but i changed my mind on the 4-1 header

[monkeyzz510]

wait, on the tc's are there only 1 o2 sensor or is there 2?
since tc's have a primary cat converter and a secondary one right?
or am i totally wrong?

[ac3 b00gi3]

there are two .. i had to custom my S-pipe cuz my second o2 sensor wouldn't fit because the axel was in the way

[carboncrazytc]

thats weird what s-pipe dp u have boogi3

[redrumtc]

I have one for 100 on that site

[ac3 b00gi3]

Originally Posted by carboncrazytc

thats weird what s-pipe dp u have boogi3

I bought the Tsudo 4-2-1 Header .. it was work to get the second O2 sensor in because the axel is blocking it .. I created a Tsudo Header Warning thread to show everyone the process i took to get a no CEL reading .. the header works GREAT .. nice and LOUD .. I LOVE noise .. lol .. i'm chewing the sh*t out of a lot of cars especially from a dig .. 07 3.5 SE altima .. 02 Mitsubishi Galant V6 .. 04 Honda Accord Coupe V6 .. and others ( too much to name ) lol .. I'm having fun lol

heres the thread link:

http://www.club-tc.com/forums/perfor...must-read.html