How can i quiet down my ls1?

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Jun 21, 2009 | 04:00 AM

Revo1

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From: Fresno, CA

How can i quiet down my ls1?

Motor's loud. I have a loud exhaust and the first thing you hear is the engine.

I know the LS1 is notorious for "piston slap" but I gotta quiet her down at least a bit. Any tips?

Jun 21, 2009 | 05:03 AM

jcobra99

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From: St. Louis Area

Is the noise coming from your valve-train??? Try some aftermarket roller rockers.

Jun 21, 2009 | 05:05 AM

gc302047

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As far as engine noise you could get a engine rebuild that would most likely quite down the car a lot because my car has engine noise and i can hear it in the car over the exhaust also.

Jun 21, 2009 | 07:09 AM

1FST99Z

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ls1's are just noisy. the more you mod them the more they sound like a sewing machine. haha.

Jun 21, 2009 | 12:25 PM

Revo1

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From: Fresno, CA

HAHA sewing machine... That's the perfect description. Motor only has 66k original miles on it, and is bone stock, so I would hope it's not due for a rebuild yet... When I DO rebuild, I'll try the roller rockers tho, thanks. Is there anything I can do that doesn't require me to pull my engine? It is low mileage, and has recently had some maintenance, have a peek, it looks brand new

Jun 21, 2009 | 01:22 PM

1FST99Z

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you can do roller rockers. that will help. but I use the stock ones even on my 408 and have no issues. besides sounding like a sewing machine. haha. I have also seen ls1's run 150k and 200k before a rebuild. I dont think that is necessary unless you beat on your car a lot. heck I have 120k on mine the 408 is new and the exhaust system but everything else is stock.

Jun 21, 2009 | 01:44 PM

ZMONSTER!

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From: Fresno, California

You have LT's?

What everyone else said its just the nature of this particular beast. When you go H/C its going to get even louder.

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Jun 21, 2009 | 06:24 PM

Revo1

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From: Fresno, CA

Quote:

Originally Posted by ZMONSTER!

You have LT's?

What everyone else said its just the nature of this particular beast. When you go H/C its going to get even louder.

LT's? H/C's? Dude, newbie here what's that?

Jun 21, 2009 | 06:42 PM

#10

2001taws6

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From: mansfield,oh

LT= long tube headers
C=cam
H=heads

Jun 21, 2009 | 07:26 PM

#11

squale iii

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I have long tube headers, no catalytic converters, and a moroso spiral flow muffler...topped off with a cam and soon heads....don't do any that if you want it to be quiet lol.

Jun 21, 2009 | 10:53 PM

#12

ZMONSTER!

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From: Fresno, California

Quote:

Originally Posted by squale iii

I have long tube headers, no catalytic converters, and a moroso spiral flow muffler...topped off with a cam and soon heads....don't do any that if you want it to be quiet lol.

Amen.

When I had my LT's installed I thought to myself "is it really supposed to sound like this?!" The headers themselves made the biggest difference to me.

Hey OP I see your in Fresno as well. You had your LS1 long? haven't seen many stripped cars around here. Mine used to have them but not anymore.

Jun 22, 2009 | 01:20 AM

#13

Revo1

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From: Fresno, CA

Quote:

Originally Posted by 2001taws6

LT= long tube headers
C=cam
H=heads

Gotcha. Unfortunately CA smog laws won't let me have the longtubes, but a Hotcam is definitely on the to-do list. I have Loudmouth II on her right now, which makes a bit of noise and sounds smooth, but the motor noise it's what I wanna smooth out. When the car comes around the corner, you hear sewing machine first, THEN exhaust. Not so cool...

Jun 22, 2009 | 01:24 AM

#14

Revo1

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From: Fresno, CA

Quote:

Originally Posted by ZMONSTER!

Yeah man, just moved to central CA a few months ago, bought my SS 2 months ago, it's been a hell of a 1/4! Do you know of any meets around the area? Would love to find a Camaro club that meets on a regular basis

Jun 22, 2009 | 02:02 AM

#15

munecorey

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i barely hear my ls1 from inside the car, lately it has become a little louder though!

Jun 22, 2009 | 09:27 AM

#16

ZMONSTER!

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From: Fresno, California

Quote:

Originally Posted by Revo1

Yeah man, just moved to central CA a few months ago, bought my SS 2 months ago, it's been a hell of a 1/4! Do you know of any meets around the area? Would love to find a Camaro club that meets on a regular basis

So would I!
There isnt a whole lot going on around here!
https://ls1tech.com/forums/western-m...l#post11784353

Jun 22, 2009 | 11:31 AM

#17

SheffyZ28

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Quote:

Originally Posted by therealcreeper

I had 0 engine noise until i did lt's. thought i had an header gasket leak because the valvetrain was so loud. I guess they're thinner than the manifolds so you can hear more.

I as well have slp lt's and slp lm1's and its almost too loud and mine does also sound like a sewing maching. anyone got any ideas on different mufflers that sounds nice and isnt extremely loud?

Jun 22, 2009 | 12:35 PM

#18

ZMONSTER!

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From: Fresno, California

Magnaflow or dynomax. Not the bullets the full size mufflers.

Jun 22, 2009 | 12:55 PM

#19

Revo1

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From: Fresno, CA

Quote:

Originally Posted by ZMONSTER!

So would I!
There isnt a whole lot going on around here!
https://ls1tech.com/forums/western-m...l#post11784353

I see all KINDS of f-bodies cruisin around here, especially 4th gens, but can't find any sign of a club of any kind... I've been tryin to get somethin started thru myspace, I don't really know how else to get one goin....

www.myspace.com/camaroclubfresno