Lets See The Custom Y-Pipes

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Jan 24, 2012 | 07:17 AM

#21

CustomX

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From: Green Cove Springs FL

Quote:

Originally Posted by LilJayV10

Custom, how can you have a fresh top end and worn out valve springs?

I bet that thing is loud!

Lol at the time of Dyno I had worn out springs, but I'm sure you knew what I was saying

Eh yeah I guess you could say its loud but no where near as loud as it was. Before it was just all 3" with a cutout, no muffler or cats with a flowtech ypipe. Can't believe I drove it around so long with how raspy it was at times, this setup is 100% better.

Also guys with cammed cars, how much are your exhausts moving around at idle? My left pipe off the header where it bends was hitting the floor at idle with a load on the car. Had to rig up a hanger but now my floorboard vibrates

Jan 24, 2012 | 10:36 AM

#22

TA1364

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From: Dayton, OH

You guys with Y pipe to merge setups think you could fit a muffler in there instead of a bullet?

Jan 24, 2012 | 10:41 AM

#23

soundengineer

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From: Chicago IL

Quote:

Originally Posted by TA1364

You guys with Y pipe to merge setups think you could fit a muffler in there instead of a bullet?

nope...

however... as you can see in my setup... 4" over the axle is not a problem...
and you can put a muffler back where one sits stock...
I actually removed my rear bullet and went to a full muffler...I couldnt deal with the volume of mine of longer drives..

Jan 24, 2012 | 10:52 AM

#24

TA1364

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From: Dayton, OH

Noise doesnt bother me, just trying to make the car more street friendly. Whats a quiet bullet (LOL) I could try just off the end of the merge?

Jan 24, 2012 | 11:06 AM

#25

soundengineer

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From: Chicago IL

and my middle bullet, is my "knock down rasp" device... works great in any exhaust setup for that function if used up in the middle of the straight pipe area

Jan 24, 2012 | 01:01 PM

#26

Ronny_02_WS6

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From: El Paso, TX

Quote:

Originally Posted by LilJayV10

How many degrees are the elbows at the end of the Y pipe before the Merge?

Jan 24, 2012 | 05:41 PM

#27

LilJayV10

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From: Evansville,IN

Quote:

Originally Posted by Ronny_02_WS6

How many degrees are the elbows at the end of the Y pipe before the Merge?

That I have no idea.

Jan 24, 2012 | 05:41 PM

#28

LilJayV10

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From: Evansville,IN

Quote:

Originally Posted by CustomX

Lol at the time of Dyno I had worn out springs, but I'm sure you knew what I was saying

Yeah I was giving you a hard time.

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Jan 24, 2012 | 10:36 PM

#29

Turnin20s

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Quote:

Originally Posted by Ronny_02_WS6

How many degrees are the elbows at the end of the Y pipe before the Merge?

On my Speed Daddy Y pipe I'm going to have a 45* on one pipe and a 90* on the other, shouldn't take too much work to get the flowmaster merge fitted on it

Jan 24, 2012 | 10:49 PM

#30

sepsis

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From: Tampa-ish

Hey guys, what are the inlet and outlet sizes on a stock 2000 z28 muffler? 3" inlet and 2.5 out?

Jan 26, 2012 | 05:09 PM

#31

TA1364

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From: Dayton, OH

You guys have any videos of these cars running?

Jan 26, 2012 | 05:16 PM

#32

CustomX

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From: Green Cove Springs FL

http://youtu.be/dbcE-5lOelQ

Jan 26, 2012 | 05:44 PM

#33

moeZ28

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From: ashland, ky

Quote:

Originally Posted by sepsis

Hey guys, what are the inlet and outlet sizes on a stock 2000 z28 muffler? 3" inlet and 2.5 out?

I believe its 2.75" inlet and 2.25 outlets...not completly positive though. I would check my car but it has the SLP d/d which is 3" in / 2.5" outs.

Jan 26, 2012 | 05:46 PM

#34

99Bluz28

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From: C. V., Kalifornia

Here's a few of my threads that might be of use.
https://ls1tech.com/forums/generatio...e-mergers.html

https://ls1tech.com/forums/generatio...nning-one.html

Jan 27, 2012 | 10:40 AM

#35

TA1364

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From: Dayton, OH

Thats still pretty loud, got to have something quieter for the street.

Jan 27, 2012 | 10:53 AM

#36

soundengineer

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From: Chicago IL

Quote:

Originally Posted by TA1364

Thats still pretty loud, got to have something quieter for the street.

Pretty much anything over 3" is going to be loud no matter what you do..

I'm 4" over the axle and thru a 4" in/out muffler...and I ditched the radio because its not useable in my opinion..LOL

Jan 27, 2012 | 01:26 PM

#37

99Bluz28

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From: C. V., Kalifornia

Any engine is going to be loud with a high flow mufflers, cam, and no cats! Yeah my car is mildly loud outside the car, but its just a deep rumble at Idle and part throttle that's actually soothing. Don't get me wrong, it's no angle on white fluffy clouds! It just doesn't create any drivers fatigue any more. BTW, my car's isn't loud at all inside, my last audio clip with my camera in the passenger side seat is with the driver side window all the way down. So I can still enjoy listening to my stereo with the volume down low(1/4), regardless if I have 3100 rms watts of amplifier power available.

Jan 27, 2012 | 01:37 PM

#38

99Bluz28

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From: C. V., Kalifornia

Quote:

Originally Posted by TA1364

Thats still pretty loud, got to have something quieter for the street.

IMO, make sure you run some high flow cats, that should quiet it down enough to suit you, if not then a Magnaflow #12909(3.5" inlet/outlet,5"x11" 22" case L) should also do a good job.
https://ls1tech.com/forums/15592435-post19.html

Jan 27, 2012 | 06:18 PM

#39

americanbadass

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From: CA

OP,
Do you see a significant savings in weight with this setup compared to a true dual 3" exhaust?

Jan 27, 2012 | 06:56 PM

#40

CLRD4TO

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From: Rosemount, MN

Here's my budget exhaust. Used hooker lt's, dmh cutout and magnaflow. Bought the Y a few years ago and fabbed in the merge last summer. It was a jigsaw puzzle, started with a pacesetter ORY and virtually no spare pipe.

Cleaned it up with some hi-temp paint. Left some room to add a bullet before the cutout, which I want to do yet...its really f*in loud!

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