LS1 Z28 vs 5.4L Roush II
02-20-2007, 10:12 PM
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Originally Posted by ZFan88
Yup, 340/340 to the wheels with a real nice torque curve. Only at 9.7:1 as he's planning an sts setup soon
That explains it, I was wondering why it was so weak.
Fricken nice looking car.
02-20-2007, 10:42 PM
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Originally Posted by 99z28monster
I hate how fords look and sound so good. It isn't fair
It really won't be fair when I get my true duals and rims this spring/summer.
02-20-2007, 10:58 PM
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Originally Posted by 99z28monster
I hate how fords look and sound so good. It isn't fair
02-20-2007, 11:19 PM
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02-20-2007, 11:26 PM
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that car doesn't sound very different than a cammed LS1. Mine sounds pretty close to that with the SLP exhaust. Mine is a little louder, i'm pretty sure of that.
02-20-2007, 11:31 PM
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Originally Posted by 2K1WS6TA
then sell your Z28 and buy a Ford! I believe a sleek F-body looks better. As far as sound, that completely depends on your exhaust setup. A buddy in my car club has a 2000 SS with duals, flowmaster super 40's. It sounds just like an old 5.0 stang.
02-20-2007, 11:52 PM
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I own a lincoln navigator and one of the reasons i could see putting the 5.4 in their is for bragging rights...
After all..Isnt the Navigator 5.4 the same block thats found in the ford GT ( only without all the fordging and other go fast stuff)
As well 340/340 is pretty good for an NA mustang right????? About on par with a bolt on LS1...
After all..Isnt the Navigator 5.4 the same block thats found in the ford GT ( only without all the fordging and other go fast stuff)
As well 340/340 is pretty good for an NA mustang right????? About on par with a bolt on LS1...
02-21-2007, 12:30 AM
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Originally Posted by 2K1WS6TA
that car doesn't sound very different than a cammed LS1. Mine sounds pretty close to that with the SLP exhaust. Mine is a little louder, i'm pretty sure of that.
02-21-2007, 01:24 AM
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Originally Posted by 2K1WS6TA
then sell your Z28 and buy a Ford! I believe a sleek F-body looks better. As far as sound, that completely depends on your exhaust setup. A buddy in my car club has a 2000 SS with duals, flowmaster super 40's. It sounds just like an old 5.0 stang.
02-21-2007, 01:37 AM
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Originally Posted by Mach1Mustang
i could be wrong but the roush 2 is n/a. stage 3 is supercharged.
Stage 2: Body kit, suspention
Stage 3: Body kit, suspention and supercharger
02-21-2007, 01:49 AM
#37
I'm with Irunelevens on the sound of 4.6 DOHC Cobras. I'm not a big Mustang fan but my cousin and my best friend both have to have the best sounding cars around where I live with their Cobras. But then again I'm always a sucker for a nice LT1 w/ SLP Loudmouth exhaust on it or a nice flowmaster.
02-21-2007, 09:06 AM
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A 4.6 DOHC motor will never cam as hard as a pushrod motor and IMO will never sound as good. The DOHC doesn't need agressive lift/duration #'s to make power since they have 4 valves per cylinder. But they will lope but nothing like a what everyone is used to hearing from the LS1/302 crowd. -Mark
02-21-2007, 09:29 AM
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That's a damn nice 'stang! I don't understand the reasoning behind going with the 5.4L block. The only thing I see as an upside is that he can drive it around while waiting for the turbo install. I think I would of gone for an 03/04 Cobra motor and turbo install all at the same time, but that's just me.
02-21-2007, 12:40 PM
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Well you know what they say... "There is no replacement for displacement. Given the same redline, cams, etc, the 5.4 will make plenty more power than a comparable 4.6. It's time intensive, but worth it in the long run, depending on your power goals.