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03 Cobra...do I even stand a chance?

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Old Aug 22, 2004 | 10:10 AM
  #31  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by nuke61
That way they don't have the face the ugly truth (like I did) that they're horrible with a clutch.
All you need is sticky tires and you don't need to be good with the clutch. Run 12 psi in the tires, heat them well, rev the engine high and dump the clutch!
Old Aug 22, 2004 | 12:50 PM
  #32  
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Re: 03 Cobra...do I even stand a chance?

Agreed, but our local dragstrip A)sucks and B)is a hotbed for people that cannot drive very well.

Norwalk has shown me a few 11.80 Cobras - they're awesome cars but I guess the point is you need a driver for them.

My car ran 15's stock because of a bad MAF. Isn't stock now but i'm fighting some very tricky gremlins somewhere.

Most newer GT's that i've seen, both at Dragway 42 and Norwalk, are running in the high 13 - low 14 second range.

Mach 1's were going anywhere from 13.70's down to 13.0's with a couple of mods. The problem with the Mach 1 drivers that I attended the Mustang event with was the fact that they would not adjust their launches at all. Same thing every run - go to line dump at 3500 and spin, then complain that the track sucked. The one Mach driver that we went up with did this about 4 times then adjusted his launches. 13.70's down to a 13.08 at 108mph with longtubes, shifter and something else small but I can't remember what it was. I love those cars
Old Aug 22, 2004 | 01:51 PM
  #33  
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Re: 03 Cobra...do I even stand a chance?

you will need a lot to take a cobra. my buddy with a LS1 ram air with exhaust, air lid and a few other bolt ons...couldnt touch my uncle's 04 cobra. all he had was intake and exhaust. when it was stock he ran 12.4!!!! now with that he probably could run 12 flat... dont underestimate the snake!!!
Old Aug 23, 2004 | 05:34 AM
  #34  
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Re: 03 Cobra...do I even stand a chance?

The reason they seem like dyno queens is because they are so damn heavy. A guy I know dynoed 465rwhp with catback, x-pipe, CAI, pulley and dr's. With a 1.70 60' he ran 11.7 @ 118mph. With 368rwhp I ran 12.5 @ 114.5mph coming out @ 1k rpm and pulling a 2.0 60'. He murdered me ET wise due to him launching out of the hole, but he had 100rwhp more and trapped 4 mph more. Not that impressive...but what is impressive is 2k in mods and he is in the 11's.
Old Aug 23, 2004 | 10:06 AM
  #35  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by RealQuick
The reason they seem like dyno queens is because they are so damn heavy.
They only weigh about 250 more lbs. than a similarly equipped LS1 F-body.
Old Aug 23, 2004 | 10:11 AM
  #36  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by Steve Y
They only weigh about 250 more lbs. than a similarly equipped LS1 F-body.
OK...so why is it that a cobra with 100rwhp more traps only 4mph more than me? I dunno why except the weight. My raceweight is 3500lbs with me (thats no weight reduction except my spare and jack). I bet you most cobras weigh in 3800-4000lbs raceweights. Thats about 300-500lbs more than me...so the weight plays a big part. I have a 3.73 gear compared to a 3.55 gear...that equals about 1mph since it is barely a jump.

It is well known that an fbody with the same power as a cobra will trap between 2-4mph more. I believe it has alot to do with weight.
Old Aug 23, 2004 | 08:36 PM
  #37  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by RealQuick
OK...so why is it that a cobra with 100rwhp more traps only 4mph more than me? I dunno why except the weight. My raceweight is 3500lbs with me (thats no weight reduction except my spare and jack). I bet you most cobras weigh in 3800-4000lbs raceweights. Thats about 300-500lbs more than me...so the weight plays a big part. I have a 3.73 gear compared to a 3.55 gear...that equals about 1mph since it is barely a jump.

It is well known that an fbody with the same power as a cobra will trap between 2-4mph more. I believe it has alot to do with weight.
http://www.edmunds.com/new/2004/ford...denav..8.Ford*
Old Aug 23, 2004 | 08:40 PM
  #38  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by RealQuick
It is well known that an fbody with the same power as a cobra will trap between 2-4mph more. I believe it has alot to do with weight.
Gearing aside, it's all about power to weight.
Old Aug 23, 2004 | 08:40 PM
  #39  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by RealQuick
OK...so why is it that a cobra with 100rwhp more traps only 4mph more than me? I dunno why except the weight. My raceweight is 3500lbs with me (thats no weight reduction except my spare and jack). I bet you most cobras weigh in 3800-4000lbs raceweights. Thats about 300-500lbs more than me...so the weight plays a big part. I have a 3.73 gear compared to a 3.55 gear...that equals about 1mph since it is barely a jump.

It is well known that an fbody with the same power as a cobra will trap between 2-4mph more. I believe it has alot to do with weight.
http://www.edmunds.com/used/1998/che.....6.Chevrolet*

See the difference is 226 lbs. I couldn't put both links on the same post. Other factors are probably gearing, aero drag, and
Old Aug 24, 2004 | 07:21 AM
  #40  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by Bob Cosby
Gearing aside, it's all about power to weight.
Thats what i thought...
Old Aug 24, 2004 | 09:53 AM
  #41  
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Re: 03 Cobra...do I even stand a chance?

I think the Camaro is a little more aerodynamic than the '03 Cobra. Giving it an extra mph or 2 in the 1/4 all other things being equal.
Old Aug 24, 2004 | 09:57 AM
  #42  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by Steve Y
I think the Camaro is a little more aerodynamic than the '03 Cobra. Giving it an extra mph or 2 in the 1/4 all other things being equal.
Possibly. Anybody know drag coefficients of the two cars we are speaking of (camaro and cobra)?
Old Aug 24, 2004 | 01:21 PM
  #43  
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Re: 03 Cobra...do I even stand a chance?

It is likely that the F-body has a decent advantage in aerodynamics (I do not know the CD of either car, and couldn't find the numbers via a quick search - though I'm sure they're out there). However, I don't think the small aerodynamic advantage would make a noticeable difference in 1/4 mile MPH, as you spend the vast majority of the 1/4 mile below 100 mph, where these effects are minimal anyway.

Power to weight (and gearing, and traction, and driver....but mostly power to weight).
Old Aug 24, 2004 | 03:20 PM
  #44  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by robvas
Get some nitrous and go waste him

Yep. I did and have no problem with lightly modded ones. Now when they start digging in the new blower pulley etc then i need a cam or maybe cam/heads. Its all about the $$$. Who ever has more is gonna go faster.
Old Aug 24, 2004 | 07:35 PM
  #45  
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Re: 03 Cobra...do I even stand a chance?

Originally Posted by Bob Cosby
It is likely that the F-body has a decent advantage in aerodynamics (I do not know the CD of either car, and couldn't find the numbers via a quick search - though I'm sure they're out there). However, I don't think the small aerodynamic advantage would make a noticeable difference in 1/4 mile MPH, as you spend the vast majority of the 1/4 mile below 100 mph, where these effects are minimal anyway.
I think the Camaro is about .29 and the Cobra about .34 but these are guesses. Anybody have a link to CDs? Just removing the rear wing on '94-present Stangs has increased trap speed by 1-2 mph for many people. Removing the rear wing increased top speed by 3 mph on a '96 Cobra according to one of the major mags. Aero drag is an important consideration.



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