Y Pipe: Merged vs. Slammed
08-03-2007, 09:42 PM
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Y Pipe: Merged vs. Slammed We all know that a slammed Y pipe (where the individual pipes are welded into each other) makes much more rasp than a merged Y (where the individual pipes go in whole to a collector). Is there any data that indicates a power difference between the two?
08-05-2007, 12:37 PM
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yeah go with a y-collector it allows gasses to flow more evenly isntead of just slamming into each other which leads to more rasp and robs you of a few ponies
08-05-2007, 02:48 PM
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Originally Posted by INMY01TA
A friend of mine has QTP lts and a QTP y pipe (which has a collector) and it's raspy.
And I have a tsp "slam" y-pipe with zero rasp. Must be another one of those internet myths.
08-05-2007, 02:52 PM
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Originally Posted by RacerScott
And I have a tsp "slam" y-pipe with zero rasp. Must be another one of those internet myths.
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08-05-2007, 03:06 PM
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Originally Posted by Asmodeus
the cats cut it out.. you'd have rasp if you removed them
I have the TSP catted y, he has off-road. And that is why I have cats.
08-05-2007, 06:49 PM
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Originally Posted by RevGTO
We all know that a slammed Y pipe (where the individual pipes are welded into each other) makes much more rasp than a merged Y (where the individual pipes go in whole to a collector). Is there any data that indicates a power difference between the two?
Ive heard true duals with rasp, Ive heard the "badass" QTP Y with rasp, etc..
08-05-2007, 06:50 PM
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Originally Posted by carado1984
pat g says go 4in y into 4in collector and I pipe.
What good is a 4" Y if the colector is only 3". You can only flow as much air as your smallest pipe. Id like to see the clearence of a 4" Y too
08-05-2007, 09:05 PM
#15
Originally Posted by Country Boy
The 4" Y is compete overkill and you will only need a 4" catback if you are over 550 rwhp.
What good is a 4" Y if the colector is only 3". You can only flow as much air as your smallest pipe. Id like to see the clearence of a 4" Y too
What good is a 4" Y if the colector is only 3". You can only flow as much air as your smallest pipe. Id like to see the clearence of a 4" Y too
08-05-2007, 09:18 PM
#17
Originally Posted by SpaZMaN
Rasp is also a matter of opnion
The way to mask the sound is to dump the exhaust because when pointed at the ground it kinda gets cancelled out.
08-05-2007, 09:55 PM
#19
Well, my question really wasn't about rasp ... (I guess I took it for granted that a slammed Y was more raspy) - it was about any power difference between a true merged Y (Flowmaster merge) vs. one where the the pipes are simply welded together - due to better flow, less turbulence, etc.
08-05-2007, 10:18 PM
#20
Originally Posted by Country Boy
The 4" Y is compete overkill and you will only need a 4" catback if you are over 550 rwhp.
What good is a 4" Y if the colector is only 3". You can only flow as much air as your smallest pipe. Id like to see the clearence of a 4" Y too
What good is a 4" Y if the colector is only 3". You can only flow as much air as your smallest pipe. Id like to see the clearence of a 4" Y too