LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

why do lt1's sound so much crapper than a old v8?

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Old Jul 24, 2003 | 02:42 AM
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why do lt1's sound so much crapper than a old v8?

i wanted the mean sound of a old 350.. to this bhahahahaha sound that lt1's make, sound like a damn ricer!
Old Jul 24, 2003 | 02:44 AM
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What kind of exhaust are you running?
I have LTs with Header mufflers and it don,t sound like no ricer.
Old Jul 24, 2003 | 02:52 AM
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i cant have no LT's and duals here i have cutouts and flowmaster cat back 3in. and soon install my slp headers. thinking about taking cats off...
Old Jul 24, 2003 | 02:52 AM
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Headers, off road pipe, super turbo muffler, and a hotcam and it sounds damn mean if you ask me.

Aaron
Old Jul 24, 2003 | 03:03 AM
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You are very limited in Cali.
Move out of that restrictive state so you can do real mods.

The beach is nice, but I,d rather be racing.
Old Jul 24, 2003 | 03:13 AM
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being able to walk to the store is nice to
but what will sound the best a hotcam cc305 or xe 224/230 i think thoses are my only pass emisions cams...
Old Jul 24, 2003 | 01:29 PM
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Re: why do lt1's sound so much crapper than a old v8?

Originally posted by PredatorZ28
i wanted the mean sound of a old 350.. to this bhahahahaha sound that lt1's make, sound like a damn ricer!
A big reason is the lower compresson ratio. Old 350 (read 1960s and early 1970s) were around 12 to 1, where as the LT1 is 10.4 to 1. Higher compression ratios give an engine a very mean tone.
Old Jul 24, 2003 | 01:40 PM
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the firing orders are the same so i think the main difference comes from the exhaust and cam. early 350s had true dual exhaust like all or most of ther cars of the day and a larger cam.
Old Jul 24, 2003 | 02:08 PM
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My car with its cutout sounds bad *** . It sounds old school
Old Jul 24, 2003 | 03:31 PM
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Originally posted by PredatorZ28
i cant have no LT's and duals here i have cutouts and flowmaster cat back 3in. and soon install my slp headers. thinking about taking cats off...
"flowmaster". That could be why you don't like the sound.
Old Jul 24, 2003 | 03:47 PM
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Re: Re: why do lt1's sound so much crapper than a old v8?

Originally posted by Got-LT1
A big reason is the lower compresson ratio. Old 350 (read 1960s and early 1970s) were around 12 to 1, where as the LT1 is 10.4 to 1. Higher compression ratios give an engine a very mean tone.

dont mustangs have lower compression than us?


they can sound damn mean with just an exhaust...........must be the h-pipe.

Last edited by got_hp?; Jul 27, 2003 at 11:08 AM.
Old Jul 24, 2003 | 03:58 PM
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There were very few 350s in the past that came with 12:1 compression from the factory, hmm let me think....none!!! The 67-69 302 Zs had 11:1 , the 327s in the 63-67 vettes had 10:1 through 11:1, and the screaming 283s in the early 60s still never topped 11:1, the early LT1 in 69 and 70 only had 11:1.
The main contributors to the sound of a car are the firing order, apipe size , restriction and or muffler type.
Old Jul 24, 2003 | 04:32 PM
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Originally posted by Perry93TransAm
There were very few 350s in the past that came with 12:1 compression from the factory, hmm let me think....none!!! The 67-69 302 Zs had 11:1 , the 327s in the 63-67 vettes had 10:1 through 11:1, and the screaming 283s in the early 60s still never topped 11:1, the early LT1 in 69 and 70 only had 11:1.
The main contributors to the sound of a car are the firing order, apipe size , restriction and or muffler type.
Im around 10.7:1 and dont sound like old school muscle. Probably had to do with what Perry here just said. That and we dont have inefficient carbs dumping fuel into the motor at idle LOL Part of the Optispark enhancements were to create a very emissions friendly motor at idle, which included lower idle (600rpm I believe) and much more tame than an old school 350 idle. That combined with firing order, exhaust, etc I have always heard that the 5.0 sounded so good because of firing order. Trade secret? LOL
Old Jul 24, 2003 | 04:38 PM
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at least i dont sound like a lame LS1 i think they put 5.0 motors in them:lol
Old Jul 24, 2003 | 04:44 PM
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Re: Re: why do lt1's sound so much crapper than a old v8?

Originally posted by Got-LT1
A big reason is the lower compresson ratio. Old 350 (read 1960s and early 1970s) were around 12 to 1, where as the LT1 is 10.4 to 1. Higher compression ratios give an engine a very mean tone.
My high conpression LT1 with LT/no cats/ custom y-pipe and borla sounds



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