3 inch Exhaust anyone?
04-09-2006 | 09:28 PM
#21
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From: Always In Front Of You
Originally Posted by winker2112
Originally Posted by BlkSandPrlTurbotC
Originally Posted by nd4spd_4_a_tc
if you have a turbo 3" is the way to go.
You can make big power from a 3". Quicker spool.
THe bigger the exhaust the better on a turbo car. You need to get rid of the exhaust.
3" DP with a E cut out. Best power mod
You can make big power from a 3". Quicker spool.
THe bigger the exhaust the better on a turbo car. You need to get rid of the exhaust.
3" DP with a E cut out. Best power mod
For turbocharged engines, 2.5 inch is the minimum size pipe that you would want to run, even for the smaller engines providing reduced back pressure and a deeper exhaust note.
It wont neccessarily be a quicker spool, it will be a lazy spool at the get go, and
you will not have any gain at top-end
Anyways, Im not going to argue this point, I know what I know and running a 2.5"
or a 3" is perfectly fine for a turbo car. its all a matter of personal opinion.
If you want a 3" get a 3", I hve been running a 2.5" exhaust with my turbo with
no problem whatsoever.
04-09-2006 | 09:39 PM
#22
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im sure your not having a problem wth your 2.5".
What im saying is go to the dyno right now with the 2.5" and then go get a 3" and you will see a diference in power. You do get more power from a 3" on a turbo car. It is proven. No matter what kind of car.
and no you do not want back pressure on a turbo car. You want to get that exhaust out as fast as possible.
What im saying is go to the dyno right now with the 2.5" and then go get a 3" and you will see a diference in power. You do get more power from a 3" on a turbo car. It is proven. No matter what kind of car.
and no you do not want back pressure on a turbo car. You want to get that exhaust out as fast as possible.
04-09-2006 | 11:09 PM
#23
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From: Keller, TX
Originally Posted by PghtC
Highlandermac has a 3 incher
Anyway, 3" is ok on a turbo car running a lot of boost, but is overkill on the s/c.
04-10-2006 | 02:06 AM
#28
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From: Always In Front Of You
Originally Posted by nd4spd_4_a_tc
Atleast someone here is smart and knows what there doing.
So u know I'm a very sarcastic person, nothing is personal.But here's my early welcome to the Scion family.
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04-10-2006 | 02:16 AM
#29
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Originally Posted by BlkSandPrlTurbotC
Originally Posted by nd4spd_4_a_tc
At least someone here is smart and knows what there doing.
So u know I'm a very sarcastic person, nothing is personal.But here's my early welcome to the Scion family.
I love my SRT4 but I can't afford it. So a Turbo tC will do
The Scion life boards are A LOT different then the SRT Forums.
If this kind of post came up there, all hell would break loose.
A lot of smart guys on there.
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04-10-2006 | 02:18 AM
#30
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Originally Posted by taek
its an open pipe
no cat, no resonator nothing haha
no cat, no resonator nothing haha
Got any sound clips?
Im going to do 3" w/cat and 1 resonator ,no muffler. I want to try to keep it some what quiet but still get alot of performance out of it.
04-10-2006 | 03:13 AM
#33
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From: Chester, NY
nd4spd 4 a xrs originally Some of the old crew is still around over here http://www.matrixrides.com/ipbforum/...?showtopic=649
(sorry about the short thread hijack)
Some of the old crew is still around over here http://www.matrixrides.com/ipbforum/...?showtopic=649(sorry about the short thread hijack)
04-10-2006 | 03:26 AM
#34
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Originally Posted by nd4spd_4_a_tc
The scion life boards are ALOT different then the srtforums.
If this kind of post came up there, all hell would break loose.
Alot of smart guys on there.
With smaller turbos on lower boost (6-10psi I consider low) 2.5 exhaust is just fine. Going to 3" you will gain very little power, extra weight, and run into problems finding one for our car. For daily driver, I would just go with 2.5 inch piping. If you are trackng your car, have built engine, and run serious pressure, I would go as far as 3.5 inch.
It is true that you do not want ANY backpressure on a tubocharged car; however, bigger is not always beter. Sometimes if your exhaust is too large and your engine/turbo is too small, you might not put out enough exhaust gasses to push them through the piping fast enough. This might create turbulance inside your exhaust hence creating backpressure.
04-10-2006 | 03:59 AM
#35
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Originally Posted by retrodrive
Originally Posted by nd4spd_4_a_tc
The Scion life boards are A LOT different then the SRT Forums.
If this kind of post came up there, all hell would break loose.
A lot of smart guys on there.
With smaller turbos on lower boost (6-10psi I consider low) 2.5 exhaust is just fine. Going to 3" you will gain very little power, extra weight, and run into problems finding one for our car. For daily driver, I would just go with 2.5 inch piping. If you are tracking your car, have built engine, and run serious pressure, I would go as far as 3.5 inch.
It is true that you do not want ANY back pressure on a Tubocharged car; however, bigger is not always better. Sometimes if your exhaust is too large and your engine/turbo is too small, you might not put out enough exhaust gasses to push them through the piping fast enough. This might create turbulence inside your exhaust hence creating back pressure.
It is nice to see someone on this site that does know something about FI.
I did forget that tC's don't run much boost. I'm to used to SRT4s running 20+psi. So yea 2.5-2.75 at 6psi is OK.
I've been modding cars for a long time, So I do think I know a thing or two about mods and tuning.
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04-10-2006 | 04:17 AM
#36
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lol, I am just one of those guys that doesnt know anything.. hehehe...
BTW, I wanted to second retrodrive... ALSO, do yourseld a favor man, go with 2.5... you will be alot happier with the ease..
Are you planning on running anymore than 12lbs of boost? The reason I went with a 3" is because I am planning on going with 12lbs. But the more I am thinking about it, I am contemplating going down to 2.5 because of how hard it is getting the 3" back.
I go back to the exhaust shop every now and then to get little things done because my exhaust does tap the underside of my car everynow and then, and I had to crush bend my 3" S-Pipe because my 3" mandrel bent pipe was being pulled into my drivetrain. Bad JuJu...
BTW I have a resonator and no cats on my 3" and it has a little rasp... I also have a straight pipe that I had made to put in place of my resonator, and UGGGHHHH It makes the car sound like CRAP.. Taek, how raspy is yours??? Can I get a clip of it...
BTW, I wanted to second retrodrive... ALSO, do yourseld a favor man, go with 2.5... you will be alot happier with the ease..
Are you planning on running anymore than 12lbs of boost? The reason I went with a 3" is because I am planning on going with 12lbs. But the more I am thinking about it, I am contemplating going down to 2.5 because of how hard it is getting the 3" back.
I go back to the exhaust shop every now and then to get little things done because my exhaust does tap the underside of my car everynow and then, and I had to crush bend my 3" S-Pipe because my 3" mandrel bent pipe was being pulled into my drivetrain. Bad JuJu...
BTW I have a resonator and no cats on my 3" and it has a little rasp... I also have a straight pipe that I had made to put in place of my resonator, and UGGGHHHH It makes the car sound like CRAP.. Taek, how raspy is yours??? Can I get a clip of it...
04-10-2006 | 04:21 AM
#37
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Originally Posted by greenfire
nd4spd 4 a XRS originally Some of the old crew is still around over here http://www.matrixrides.com/ipbforum/...?showtopic=649
(sorry about the short thread hijack)
Some of the old crew is still around over here http://www.matrixrides.com/ipbforum/...?showtopic=649(sorry about the short thread hijack)
Yeah, that's me. I miss my Matrix. It was nice.
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04-11-2006 | 02:23 AM
#38
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Well thanks a lot for the input guys I appreciate it. Learned alot more about exhaust which is always good. So in the end since i dont plan on running over 8-9 psi, not for a while anyways, I will get the 2.5".
