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what makes the LT5 emit its unique sound?

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Old 06-01-2014, 11:37 AM
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ARGH
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Default what makes the LT5 emit its unique sound?

when it winds up it sounds like a jet engine. i am sure you know what i am talking about.

the pushrod GM engines just make noise. the LT5 has a great sound to it.

is it the cams that make the sound or something else?
Old 06-01-2014, 02:02 PM
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Z51JEFF
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Something else.
Old 06-01-2014, 02:41 PM
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Dynomite
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Originally Posted by Z51JEFF
Something else.
Like Jeff said
Old 06-01-2014, 04:03 PM
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It's called WLT5@7000RPMs
Old 06-01-2014, 09:05 PM
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That's a radio station WLT5
Old 06-01-2014, 09:57 PM
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Originally Posted by We Gone
It's called WLT5@7000RPMs
but it happens in almost all rpm bands. even cruising in low rpm it winds up to a point and waits to be unwound further.

reason i am asking is because if i ever get the LT5 again this time i will have it modified to about 475hp or so but do not want to lose its unique sound, at all.
Old 06-01-2014, 10:19 PM
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FASTAZU
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They sound better as the HP goes up
Old 06-02-2014, 09:30 AM
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Originally Posted by We Gone
They sound better as the HP goes up
Holy sheit - ain't that the truth!?!?!! Driving the 402 this past week - Jesus that bitch sounds awesome as it gets revved through the rpms! Simply amazing!
Old 06-02-2014, 06:00 PM
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Originally Posted by DDSLT5
Holy sheit - ain't that the truth!?!?!! Driving the 402 this past week - Jesus that bitch sounds awesome as it gets revved through the rpms! Simply amazing!
JC Doc......how many strokers you got ?
Old 06-03-2014, 07:23 PM
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Originally Posted by FU
JC Doc......how many strokers you got ?
Just one now!!

How's it going Frankie?
Old 06-05-2014, 07:32 AM
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Paul Workman
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Originally Posted by We Gone
They sound better as the HP goes up


Definitely have a distinctive sound. I'm guessing it has to do with the harmony(?) of the twin exhaust valves opening, or the resonance within the exhaust ports? Sweet sound tho, huh?
Old 06-07-2014, 05:45 PM
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Originally Posted by ARGH
when it winds up it sounds like a jet engine. i am sure you know what i am talking about.

the pushrod GM engines just make noise. the LT5 has a great sound to it.

is it the cams that make the sound or something else?
Jet Engine?.....Naaaah. More like a 32 valve Banshee from HELL, chains whipping and screaming! .......or... something else.
Old 06-08-2014, 03:01 PM
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ARGH
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Originally Posted by Graybeard ZR1
Jet Engine?.....Naaaah. More like a 32 valve Banshee from HELL, chains whipping and screaming! .......or... something else.
thought it might be the cam chains.

someone has got to know!
Old 06-08-2014, 11:20 PM
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No one knows. Many have guesses. My guess would be the header-like, stock manifolds.
Old 06-09-2014, 07:40 AM
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Originally Posted by ARGH
thought it might be the cam chains.

someone has got to know!
Just a thought but, what if those cams had cap like retainers instead of bolt on cam covers. Then the LT5 heads would have (Hemi-like) metal valve covers. That would amplify all that valve train noise and create a real racket.

It would also allow the bling boys to chrome them up cool like all those old Chrysler elephant motors.
Old 06-11-2014, 08:10 PM
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5abivt
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Chamber shape, volume, compression, firing order, intake runner volume and shape, intake manifold material shape and volume... list goes on !
Old 06-11-2014, 08:58 PM
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Originally Posted by 5abivt
Chamber shape, volume, compression, firing order, intake runner volume and shape, intake manifold material shape and volume... list goes on !
But when it gets right down to the OP's question his thoughts are right on the money - the drive of the camshafts is responsible for the majority of what is heard. It's all chains, tensioners and the guides combined with the RPMs. It doesn't actually require many RPMs to hear the distinguished sound. I've a neighbor a good ways away and he can tell mine from nearly start up. If he's outside he's always been ready with a wave long before I go past his house.

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To what makes the LT5 emit its unique sound?

Old 06-11-2014, 10:55 PM
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Dominic Sorresso
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What's interesting is how even a stock displacement LT-5 will sound like a BBC AT IDLE if the motor has been modified, ie ported.
Old 06-12-2014, 01:45 PM
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Originally Posted by WVZR-1
But when it gets right down to the OP's question his thoughts are right on the money - the drive of the camshafts is responsible for the majority of what is heard. It's all chains, tensioners and the guides combined with the RPMs. It doesn't actually require many RPMs to hear the distinguished sound. I've a neighbor a good ways away and he can tell mine from nearly start up. If he's outside he's always been ready with a wave long before I go past his house.
I think the OP was talking about the sound/character/quality of the exhaust.
Old 06-14-2014, 01:51 AM
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New to the forum, but here goes.

I believe that it sounds the way it does because it has a 180 degree crank (flat plane) and corresponding firing order. This changes the engine balance and increases the RPM.

If you think about the sound of a twin cam 4 valve Ford Mustang Cobra engine, it sounds like a regular v8 (high performance but regular).

Jeff


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