2003 Cobra
Originally Posted by Lethal Z
03 Cobras are sweet, you cannot take anything away from them, with that being said. I've seen plenty of them run at the track and very rare is it to see one run in mid 12s.
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From: St. Louis
Agreed
The one thing I really want everyone to remember is that the Cobra has a blower. Yes it is a stock piece but its a power adder none the less. My point here is that it better be able to kick some ***. For an LS1 to be able to come as close as it does to the Cobra being NA says a lot for the LS1.
The one thing I really want everyone to remember is that the Cobra has a blower. Yes it is a stock piece but its a power adder none the less. My point here is that it better be able to kick some ***. For an LS1 to be able to come as close as it does to the Cobra being NA says a lot for the LS1.
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From: NYC metro area
Originally Posted by Lethal Z
Agreed
The one thing I really want everyone to remember is that the Cobra has a blower. Yes it is a stock piece but its a power adder none the less. My point here is that it better be able to kick some ***. For an LS1 to be able to come as close as it does to the Cobra being NA says a lot for the LS1.
The one thing I really want everyone to remember is that the Cobra has a blower. Yes it is a stock piece but its a power adder none the less. My point here is that it better be able to kick some ***. For an LS1 to be able to come as close as it does to the Cobra being NA says a lot for the LS1.
Joined: Oct 2005
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From: Holland Twp/Milford, New Jersey
Originally Posted by Redneck Z
Did you read the previous posts? The advertised #'s are far from accurate. You have to compare dyno #'s and not advertised flywheel #'s. The #'s the LS1's put down on the dyno correlate with 350 ish RWHP.
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From: Earth
Originally Posted by Vendetta
Don't forget that the LS1 has 70 extra cubes.
Low compression & blower vs. high compression & N/A...power is power.
Originally Posted by unit213
...and high compression. Comparing how power is made is ridiculous to me.
Low compression & blower vs. high compression & N/A...power is power.
Low compression & blower vs. high compression & N/A...power is power.
but.. you know damn well as i Unit... that low compression and F/I is a much more effiecnt way to make power than high compreassion N/A
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From: Earth
Originally Posted by Dragframe
but.. you know damn well as i Unit... that low compression and F/I is a much more effiecnt way to make power than high compreassion N/A
Originally Posted by sdm1234
Ok. Is that with the WS6 LS1 or base? How about the WS6 LT1? Tell me the TRUE ratings for these motors, at the fly. And from what reputable authority are you getting this information from, that we can all trust?
I've seen 360, up to 386 on the earlier cobras.
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Launching!
Joined: Feb 2005
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From: Woodlands,TX
Hey,
I appreciate all the cudo's on the 03 Cobra's. My liitle black machine with big pulley on bottom, small pulley on top, Eaton Supercharger(OEM Equipment), Anderson PMS; snow boost cooler, no juice, IRS, T-56, SPec 3 + clutch, ran a best at HRP 11:18 @ 129.78 mph.but it is true they need to go on a diet 3690 from factory; IRS presents launching problems; best 60 ft. time 1:53 seconds, but then I peeled the coating off the piston and the 03 is in the doctors office.
I appreciate all the cudo's on the 03 Cobra's. My liitle black machine with big pulley on bottom, small pulley on top, Eaton Supercharger(OEM Equipment), Anderson PMS; snow boost cooler, no juice, IRS, T-56, SPec 3 + clutch, ran a best at HRP 11:18 @ 129.78 mph.but it is true they need to go on a diet 3690 from factory; IRS presents launching problems; best 60 ft. time 1:53 seconds, but then I peeled the coating off the piston and the 03 is in the doctors office.
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From: Holland Twp/Milford, New Jersey
Originally Posted by jdhommert
Ok, here goes, LT1 M6 in good running conditions would dyno High 240's all the way to very very low 260's, but most M6 LT1 cars are about 250 or so. A LS1 M6 in good running condition will dyno 30x Some lay down 29x, but at the same time i've seen stock ls1's lay down 315ish.
I've seen 360, up to 386 on the earlier cobras.
I've seen 360, up to 386 on the earlier cobras.
The way you've written this, is with the LT1 having a 19% loss and the LS1 having a 12% loss. If you're using your numbers, you're saying the Cobra only has a 2-7% loss? That's an "amazing" driveline efficiency, which I highly doubt Ford could produce, and GM could not.
Most driveline efficiency numbers, with standard transmissions, are based on approx. 12%, which is basically what you have stated for the LS1. Now, with those calculations, the Cobra would be putting out 343 RWHP. That's a more realistic number for factory-produced powertrain components.
Even with the aluminum driveshaft, the T-56, and upgraded bushings and all, I can see there would be less of a percentage loss, but that's still not anywhere near close to the numbers you have posted.
Originally Posted by sdm1234
315ish with the LS1? There's no way. There's more drivetrain loss than that for it to be putting out 315 to the wheels, stock. With the LT1 and the LS1 running nearly identical powertrains, there would be the same percentage losses for each.
The way you've written this, is with the LT1 having a 19% loss and the LS1 having a 12% loss. If you're using your numbers, you're saying the Cobra only has a 2-7% loss? That's an "amazing" driveline efficiency, which I highly doubt Ford could produce, and GM could not.
Most driveline efficiency numbers, with standard transmissions, are based on approx. 12%, which is basically what you have stated for the LS1. Now, with those calculations, the Cobra would be putting out 343 RWHP. That's a more realistic number for factory-produced powertrain components.
Even with the aluminum driveshaft, the T-56, and upgraded bushings and all, I can see there would be less of a percentage loss, but that's still not anywhere near close to the numbers you have posted.
The way you've written this, is with the LT1 having a 19% loss and the LS1 having a 12% loss. If you're using your numbers, you're saying the Cobra only has a 2-7% loss? That's an "amazing" driveline efficiency, which I highly doubt Ford could produce, and GM could not.
Most driveline efficiency numbers, with standard transmissions, are based on approx. 12%, which is basically what you have stated for the LS1. Now, with those calculations, the Cobra would be putting out 343 RWHP. That's a more realistic number for factory-produced powertrain components.
Even with the aluminum driveshaft, the T-56, and upgraded bushings and all, I can see there would be less of a percentage loss, but that's still not anywhere near close to the numbers you have posted.
dood.. i ahve a lt1 and love the hell out of it.. wouldn'
t trade it for anyhting.. but please dont tell me you think the facotry ratings are accurate??? the Lt1 puts dow na low of 240 to the wheels.. and al s1 will do 290
Joined: Oct 2005
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From: Holland Twp/Milford, New Jersey
Originally Posted by Dragframe
but please dont tell me you think the facotry ratings are accurate??? the Lt1 puts dow na low of 240 to the wheels.. and al s1 will do 290
Originally Posted by sdm1234
It depends on what LT1 you have. You're comparing a standard transmission to an automatic transmission percentage loss. The auto's definitely have a higher % loss, and that's no secret. Of course your car will put down only 240 to the wheels, but we're not talking about your car. The car in the spotlight here is the WS6 with the T-56 (same as the Cobra). Let's stay on topic here, and compare apples to apples "dood."
ive never dyno'ed my car dood...
im saying.. ok.. how about a great greatgreeat lt1... m6... 260 at the wheels... ls1... 31x wheels.... why would that be?? because the ls1 has a lot more hp than advertised... the cobra puts a low of 350 to the wheels... a high of 38x