2007 Shelby Weight Problem????

Evil_Merlin

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01L2Cobra said:
Yes but out of the competition we know at lest the Challenger will have a SLA while the Mustang and everything built off of the C1 is stuck with a MacPherson front suspension off of the Mazda3.


And we also know it will weigh in around 4000lbs...

What's your point?


Even with the solid rear, the 05/06 Mustang GT still has better handing than even the 01 Cobra you so dearly love...
 
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01L2Cobra

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Evil_Merlin said:
And we also know it will weigh in around 4000lbs...

What's your point?


Even with the solid rear, the 05/06 Mustang GT still has better handing than even the 01 Cobra you so dearly love...
Yea just like the GT500 but with an IRS as well. So it will be better balanced.

With my mods my cobra has better handling than an 05 and still cost me less.
 

Fourcam330

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01L2Cobra said:
Yes but out of the competition we know at lest the Challenger will have a SLA while the Mustang and everything built off of the C1 is stuck with a MacPherson front suspension off of the Mazda3.

Doesn't the M3 also use MacPherson struts?
 
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Take the Corvette and leave, thats what I say. A Cobra is a Cobra and a Z06 is a Z06. Two totally different cars and I'll take a S/C block any day for $40k. Our aftermarket is very equipped to move a 4000 lb car into the high 11s.
 

Evil_Merlin

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01L2Cobra said:
Yea just like the GT500 but with an IRS as well. So it will be better balanced.

With my mods my cobra has better handling than an 05 and still cost me less.


Ricer. With my mods, my 04 Cobra outhandles even the C6 Z06.

Stock vs. Stock, the 05/06 GT out handles the 01 Cobra.

The GT500 stock vs. stock is going to beat it silly.
 

03CobraBro

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Captain Beyond said:
Yeah, the fastest and most powerful Mustangs were also the heaviest.

TheOne™ said:
i guess they even brought the weight apart from the old styling:), member back in the day cars were heavy and powerfull?:)

You guys are confusing pony cars and muscle cars... The fastest pre emission mustangs were the 69 and 70 Boss 429's and they only weighed alittle over 3500lbs... Hell thats lighter than the 00 Cobra R's weighed.
 
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Formula51

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Evil_Merlin said:
Ricer. With my mods, my 04 Cobra outhandles even the C6 Z06.

Please don't say stupid shit like that. I don't care what mods you have, its still a front biased ~3600# Mustang with a compromised IRS and Mac strut suspension.

DO NOT EVER EVER EVER put 04 Cobra, handle, and C6 Z06 in the same sentence unless it has the word NOT in it.

For example: With all my mods my 04 Cobra still does NOT handle nearly as well as a C6 Z06.

The Z06 handles at the same level as cars like the Ford GT, Porsche GT3R, and Ferrari F430.

Don't reply to this with anything other than, "yea, you are right ment to type C6 not Z06". Or I will have to revoke your typing rights! :-D
 

Robert M

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03CobraBro said:
You guys are confusing pony cars and muscle cars... The fastest pre emission mustangs were the 69 and 70 Boss 429's and they only weighed alittle over 3500lbs... Hell thats lighter than the 00 Cobra R's weighed.

And don't forget the 71 BOSS 351 is quoted over and over in the Vintage Muscle car magazines as well as facts and figures books as having posted the best 1/4 mile times of that era when new, at 13.8 e.t. out pacing all of the big block Mustangs of that era. One test in Drag Racing Annual 1971 showed a 71 429 SCJ running a 13.4, but that was not a consistant time for those cars. The BOSS 351 ran the fastest consistant times in the 1/4 mile according to most all literature that has been printed since that era. The 1995 Cobra R was the first production Mustang to consistantly match, and beat the 13.8 set by the BOSS 351. The exotic hemi head BOSS 429 was a very good performer, but the 1/4 mile was not its specialty in stock "as it came from Ford" trim. In comparision, the fastest consistant time posted by MM&FF in 2000 that I have found for a 2000 Cobra R was [email protected], that was run multiple times consistantly. I don't want to count the couple of 12.4's run by the 2000R in some tests. Consistant times are what are reality.

R
 
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Robert M

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03CobraBro said:
You guys are confusing pony cars and muscle cars... The fastest pre emission mustangs were the 69 and 70 Boss 429's and they only weighed alittle over 3500lbs... Hell thats lighter than the 00 Cobra R's weighed.

One thing I forgot to add, the 69 and 70 BOSS 429 could in no way be considered a "pre-emissions" Mustang. A correct "as it came from Ford" BOSS 429 had a full smog pump/A.I.R. (Air Injection Reactor) set-up bolted on the engine on the assy. line. The reproduction smog kit for a BOSS 429 runs around $1200. Most all of the upper end performance engines from approx. 1968-on had smog pumps including 302 Z/28's, BOSS 302's, 428CJ/SCJ's, 429CJ/SCJ's, 427 Corvettes etc. The Holley carb'ed engines seemed to be the ones that mainly got smog pumps. If anything these engines could be considered pre-Cat and EGR., that was a late 1974/1975-up thing.

BTW - We (Mustang Monthly editors and myself) chassis dyno'ed many concours correct big block Mustangs for a Big Block Blowout feature in 1999. Tested were 6 cars, 3-428 Shelby's (67PI,68CJ,70CJ), 1-1968 390GTA, 1-70 BOSS429 and my 71-429SCJ Mach 1. ALL of the concours restored "crisp/clean running" 428's ran in the 232-238 RWHP range, the BOSS 429 pulled a 242 (running rich) and my 71-429SCJ a 247 (running rich). The 68 390GTA pulled a 165 RWHP (running rich). I later did a Dyno Tune for Performance article for Mustang Monthly in 2001. I tweaked the factory 780 Holley to it's best performance level and was able to achieve a 290 RWHP/365Ft.Lbs. If tuned properly, that BOSS 429 with it's smaller factory installed 735cfm Holley "may" have achieved those same numbers 290 + or - RWHP in stock "as it came from Ford" configuration. This is why low 14's and very, very high 13's were the common numbers on these cars when stock, as they came from Ford. Remember these cars did not come with tubed headers, they had cast iron manifolds. It was like blowing your exhaust into a log. My 71-429 didn't even come from the factory with an aluminum intake. The 428CJ's were factory rated at 335h.p., I think that 67 428PI (dual quad) was 360h.p. and the BOSS 429 and 429SCJ were both rated at 375h.p. I think the 390GT was rated at 275h.p. On the old muscle cars you can basically bet on a 75 h.p. loss from the flywheel to the rear tires on a manual trans car, and 100 h.p. loss on an automatic. It takes much energy/power to turn those heavy drivetrain parts.

R
 
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Captain Beyond

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Robert M said:
And don't forget the 71 BOSS 351 is quoted over and over in the Vintage Muscle car magazines as well as facts and figures books as having posted the best 1/4 mile times of that era when new, at 13.8 e.t. out pacing all of the big block Mustangs of that era. One test in Drag Racing Annual 1971 showed a 71 429 SCJ running a 13.4, but that was not a consistant time for those cars. The BOSS 351 ran the fastest consistant times in the 1/4 mile according to most all literature that has been printed since that era. The 1995 Cobra R was the first production Mustang to consistantly match, and beat the 13.8 set by the BOSS 351. The exotic hemi head BOSS 429 was a very good performer, but the 1/4 mile was not its specialty in stock "as it came from Ford" trim. In comparision, the fastest consistant time posted by MM&FF in 2000 that I have found for a 2000 Cobra R was [email protected], that was run multiple times consistantly. I don't want to count the couple of 12.4's run by the 2000R in some tests. Consistant times are what are reality.

R
I have all those old mag road tests. That's why I made the comment that the fastest Mustangs weren't necessarily the lightest. :beer:
 
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Captain Beyond

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Robert M said:
One thing I forgot to add, the 69 and 70 BOSS 429 could in no way be considered a "pre-emissions" Mustang. A correct "as it came from Ford" BOSS 429 had a full smog pump/A.I.R. (Air Injection Reactor) set-up bolted on the engine on the assy. line. The reproduction smog kit for a BOSS 429 runs around $1200. Most all of the upper end performance engines from approx. 1968-on had smog pumps including 302 Z/28's, BOSS 302's, 428CJ/SCJ's, 429CJ/SCJ's, 427 Corvettes etc. The Holley carb'ed engines seemed to be the ones that mainly got smog pumps. If anything these engines could be considered pre-Cat and EGR., that was a late 1974/1975-up thing.

BTW - We (Mustang Monthly editors and myself) chassis dyno'ed many concours correct big block Mustangs for a Big Block Blowout feature in 1999. Tested were 6 cars, 3-428 Shelby's (67PI,68CJ,70CJ), 1-1968 390GTA, 1-70 BOSS429 and my 71-429SCJ Mach 1. ALL of the concours restored "crisp/clean running" 428's ran in the 232-238 RWHP range, the BOSS 429 pulled a 242 (running rich) and my 71-429SCJ a 247 (running rich). The 68 390GTA pulled a 165 RWHP (running rich). I later did a Dyno Tune for Performance article for Mustang Monthly in 2001. I tweaked the factory 780 Holley to it's best performance level and was able to achieve a 290 RWHP/365Ft.Lbs. If tuned properly, that BOSS 429 with it's smaller factory installed 735cfm Holley "may" have achieved those same numbers 290 + or - RWHP in stock "as it came from Ford" configuration. This is why low 14's and very, very high 13's were the common numbers on these cars when stock, as they came from Ford. Remember these cars did not come with tubed headers, they had cast iron manifolds. It was like blowing your exhaust into a log. My 71-429 didn't even come from the factory with an aluminum intake. The 428's were factory rated at 335h.p., the BOSS 429 and 429SCJ were both rated at 375h.p. I think the 390GT was rated at 275h.p. On the old muscle cars you can basically bet on a 75 h.p. loss from the flywheel to the rear tires on a manual trans car, and 100 h.p. loss on an automatic. It takes much energy/power to turn those heavy drivetrain parts.

R

Good info Robert. :beer:
It made me pull out those old M.M. issues.
 

Robert M

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Captain Beyond said:
Good info Robert. :beer:
It made me pull out those old M.M. issues.

I did make a couple of incorrect statements...............

The 71-429CJ did not have a smog pump, only the Holley carb'ed, SCJ and the smog system that Ford used was called the "Thermactor " system. GM used the smog system called A.I.R. Both systems were the belt driven pump with all of the hoses, steel lines, canister, etc. These were the first items to be thrown in the trash can when these cars were purchased new.

R
 

Robert M

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Captain Beyond said:
Good info Robert. :beer:
It made me pull out those old M.M. issues.

I was not in Altanta for the 3-Way 428 GT500 Shelby dyno pulls, but I heard there were some upset owners who could not believe that their Shelbys were not pulling closer to 300h.p. at the rear wheels. Those Shelbys were running crisp and clean according to the dyno owner and other witnesses. I was there to withness the BOSS 429 pulls. The owner was not happy with sub 250 RWHP pulls. He said that it should be closer to 350 RWHP, something was wrong! It is sad when reality slaps you in the face. I thought my 375h.p. 429SCJ should be in the 300-325RWHP range!! But even when we did the power tweaking on the Holley, with 15-20 pulls two years later and a "well tuned" 375h.p. 429SCJ, 290RWHP was it. Many claim that most of these vintage muscle car engines were under rated in horse power and torque by the factory, maybe some of them were, but the real world numbers don't confirm that "most of them were".

If you noticed, I was the only vintage muscle Mustang to out pull that brand new 1999 Mustang GT that was on-loan to the magazine at that time! That upset some owners also!

R
 

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