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lt1 sounds different than ls1 WHY?!?!?!

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Old 02-15-2007 | 02:58 PM
  #21  
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the sound that you hear in the exhaust is the gas exploding from combustion. so you think about the differences in the 2 engine's where combustion plays a role. the LS1 has bigger valves, bigger ports, and the aluminum block plays a small role in the sond as it "echoes" at the top of the cylinder where the gas explodes. firing order is one of the contributions too.

i noticed when my ex's car was crashed that the LS1 does have a deep tone, but that was when the Y pipe was fubared. the LS1 sounds more mechanical and raspy/quiet mainly because of having 2 cats and the stock muffler.
Old 02-15-2007 | 03:07 PM
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Originally Posted by WhiteKnightZ28
Uhh... why would they sound the same? They dont share any parts.
EXACTLY-----2 TOTALLY DIFFERENT ENGINES.
Old 02-16-2007 | 08:53 AM
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Originally Posted by Genesis_26317
As far as firing order is concerned didn't the LS2 series go back to the "normal" firing order?
Don't think so as people use the same cams in LS2's and they do in Ls1's.
Old 02-16-2007 | 10:00 AM
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Originally Posted by 300bhp/ton
No it's not its **** easy.

Ford modular motor, cast oiron block in sn95 GT, 03/4 Terminator, all trucks.

And aluminium in Mach 1, pre 03 Cobra's, s917 GT, Ford GT


Not too mention the LS1 and variants (Ls2, Ls4, LS6, LS7) compared to LQ4 and LQ 9.


The reason a Lt1 sounds different to a LS1 is it's a different frigging motor. Don't let the fact that they are both 5.7 litre OHV's fool you, because that's the only similrity.

In fact the LS1 has almost as much in common for a Ford modular OHC motor as it does with the LT1.


As for aluminum blocks, well engines have been made from aluminum for years and years and plenty of them sound fantastic with deep note.

Just because alumium is fairly new to Chevy V8's doesn't mean it's actually new technology.
Not that easy I meant everything the same heads, intake, compression none of the engines you have listed above have everything similar other than the block. The closest would be cobra and the mach engine same heads different block but also different compressions and intake obviously also most importantly different exhaust due to the IRS in the cobra versus the live rear in the mach.



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