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19Likes
04-20-2020, 10:16 AM
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Senior Club Cobra Member
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Join Date: Mar 2000
Location: St. Augustine,
FL
Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
Posts: 1,929
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Not Ranked
mega-horsepower == dyno queen
It makes no difference whether the grenade pin snags on something and is pulled out, or whether you pull it out yourself.
You're still catapulted into the next world...
__________________
Wells's law of engine size: If it matters what gear you're in, the engine's too small!
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04-20-2020, 10:48 AM
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CC Member
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Join Date: Dec 2000
Location: St. Augustine,
FL
Cobra Make, Engine: E-M Cobra - RCR GT40
Posts: 500
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Not Ranked
Quote:
Originally Posted by Tom Wells
mega-horsepower == dyno queen
It makes no difference whether the grenade pin snags on something and is pulled out, or whether you pull it out yourself.
You're still catapulted into the next world...
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Says the man with the 517 c.i. big block and the tell-tale sig line...
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04-20-2020, 12:03 PM
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Senior Club Cobra Member
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Join Date: Mar 2000
Location: St. Augustine,
FL
Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
Posts: 1,929
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Not Ranked
Quote:
Originally Posted by Mike I
Says the man with the 517 c.i. big block and the tell-tale sig line...
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And 40K miles.
And only one DUD ( driving upside down) incident...
__________________
Wells's law of engine size: If it matters what gear you're in, the engine's too small!
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04-21-2020, 04:54 AM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Shasta Lake,
CA
Cobra Make, Engine:
Posts: 26,593
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Not Ranked
I have never had an accident but I have pushed the limits on some of our backwoods mountain roads in the past. And as one member said the cars get up to speed very quickly. My Coupe will be at 100 MPH in a heartbeat it seems and as I have gotten older I tend to drive more cautiously and stay off the freeways and main roads.
Ron
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04-21-2020, 11:27 AM
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CC Member
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Join Date: Mar 2014
Location: Rocklin,
Ca
Cobra Make, Engine: Superformance , Roush 427SR dyno'd at 526 hp
Posts: 173
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Not Ranked
Quote:
Originally Posted by Ron61
I have never had an accident but I have pushed the limits on some of our backwoods mountain roads in the past. And as one member said the cars get up to speed very quickly. My Coupe will be at 100 MPH in a heartbeat it seems and as I have gotten older I tend to drive more cautiously and stay off the freeways and main roads.
Ron
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Ron,
I agree with you. As I become more mature I have also tended to drive more cautiously. Perhaps it is because I have become a little more sensible or I Realize my reflexes aren’t what they used to be. As far as staying off of main roads I am the same—- too many drivers wanting to goad you into street racing. Not for me.
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04-21-2020, 03:25 PM
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CC Member
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Join Date: Feb 2006
Location: Gilroy,
CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
Posts: 2,722
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Not Ranked
Increasing years bring increasing awareness of our own mortality — ask me how I know
Ed
__________________
Help them do what they would have done if they had known what they could do.
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04-29-2020, 01:10 AM
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CC Member
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Join Date: Oct 2007
Location: Cape Town,
WC
Cobra Make, Engine: Shamrock
Posts: 418
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Not Ranked
Care in driving a Cobra (The more power the more care!!) is essential and even after years of ownership (28 Yrs) they still surprise you sometimes. I recall overtaking at low speed in the face of oncoming traffic (still plenty of room) in second gear (gave it a bit of wellie) and as I turned in after overtaking I took my foot off the throttle too suddenly to avoid running into the car ahead and the tail stepped out. Must say it caught my attention and gave me a valuable reminder that any sudden moves on or off throttle will cause problems and also not to become too complacent.
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04-29-2020, 07:31 AM
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CC Member
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Join Date: Jan 2009
Location: Las Vegas,
NV
Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
Posts: 5,573
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Not Ranked
Quote:
Originally Posted by Snake2998
Care in driving a Cobra (The more power the more care!!) is essential and even after years of ownership (28 Yrs) they still surprise you sometimes. I recall overtaking at low speed in the face of oncoming traffic (still plenty of room) in second gear (gave it a bit of wellie) and as I turned in after overtaking I took my foot off the throttle too suddenly to avoid running into the car ahead and the tail stepped out. Must say it caught my attention and gave me a valuable reminder that any sudden moves on or off throttle will cause problems and also not to become too complacent.
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Thats trailing throttle oversteer and why in a racing class you are taught to have foot on throttle or brake but never coast.
I would add that a high performance driving class is almost essential to the safe operation of a Cobra. I went to Bondurant three times (hey, slow learner . Really, though, in the advanced class you got three full days of 8 hours a day of essentially open track with instruction. Well worth the repeat visits.) In the early classes they teach you on a skid pad about the various over- and under-steer conditions and what to do. It's not book learning, but actual skid pad driving. Very helpful to actually do it. They teach you about all of the things to do but you'll never remember them, and in some cases the correct recovery isn't the safest action either. The one you can always remember is "all in": Foot on clutch and full on brakes.
__________________
Cheers,
Tony
CSX4005LA
Last edited by twobjshelbys; 04-29-2020 at 07:50 AM..
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04-29-2020, 08:16 AM
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CC Member
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Join Date: Jan 2018
Location: Lafayette,
IN
Cobra Make, Engine: Looking to buy
Posts: 1,295
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Not Ranked
I found when I first started autocrossing my VSE that if I let off the gas for a corner it was pretty easy to break traction with both rear wheels due to the compression braking of the 7 liter v8. In that circumstance if you lost the back there was no stopping it, it just broke loose and came around. This was first demonstrated to me when running it on street tires on a damp day.
I learned to left foot brake and never let off the gas completely in the turns.
It made the times I drove it on the street an exercise in caution.
__________________
Cobra loving, autocrossing Grandpa Architect.
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04-29-2020, 10:21 AM
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CC Member
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Join Date: Feb 2006
Location: Gilroy,
CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
Posts: 2,722
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Not Ranked
I believe this was called Trailing Torque Oversteer (TTO) at one point in time. Very easy to induce in these types of vehicles if you back pedal too much. Pushing in the clutch pedal and effectively disconnecting the engine from the drive tires helps in regaining control once the out of control condition begins.
Ed
__________________
Help them do what they would have done if they had known what they could do.
Last edited by eschaider; 04-29-2020 at 10:23 AM..
Reason: Spelling & Grammar
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04-29-2020, 11:38 AM
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CC Member
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Join Date: Jan 2018
Location: Lafayette,
IN
Cobra Make, Engine: Looking to buy
Posts: 1,295
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Not Ranked
Good concept but in reality I suspect things can happen so fast you cannot save yourself.
__________________
Cobra loving, autocrossing Grandpa Architect.
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04-29-2020, 12:07 PM
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CC Member
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Join Date: Jun 2007
Cobra Make, Engine: SPF GT40
Posts: 237
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Not Ranked
Having raced in SCCA and IMSA for 30 years I say keep the 80mph+ speeds on the race track. Way too many unexpected things like inattentive drivers and rough surfaces can happen on public roads. Even full acceleration from a stop can send you into a ditch or tree on narrow roads. Track days are the appropriate and reasonably safe way to experience the full potential of our cars.
Last edited by SwiftDB4; 04-29-2020 at 12:12 PM..
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04-29-2020, 01:16 PM
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CC Member
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Join Date: Jan 2018
Location: Lafayette,
IN
Cobra Make, Engine: Looking to buy
Posts: 1,295
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Not Ranked
Good advice.
__________________
Cobra loving, autocrossing Grandpa Architect.
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04-29-2020, 01:47 PM
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CC Member
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Join Date: Jan 2009
Location: Las Vegas,
NV
Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
Posts: 5,573
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Not Ranked
Quote:
Originally Posted by SwiftDB4
Having raced in SCCA and IMSA for 30 years I say keep the 80mph+ speeds on the race track. Way too many unexpected things like inattentive drivers and rough surfaces can happen on public roads. Even full acceleration from a stop can send you into a ditch or tree on narrow roads. Track days are the appropriate and reasonably safe way to experience the full potential of our cars.
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But, as they say, s*** happens and any of the events can happen in every day driving with a Cobra. Most happen because the driver doesn't know what a high horsepower, high torque high compression engine behaves in certain circumstances. And those events happen when conditions vary, especially cold tires and cold pavement. Track days don't expose everything unless you deliberately probe the boundary of the envelope and most people aren't there to do that.
__________________
Cheers,
Tony
CSX4005LA
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04-29-2020, 06:38 PM
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CC Member
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Join Date: Nov 2018
Location: Priceville,
al
Cobra Make, Engine: Unique FIA
Posts: 334
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Not Ranked
I bought a Cobra which was a dedicated mountain racer for 25yrs and a heated garage queen for many more. I'm currently building an engine from scratch to replace the fourth engine in 9k miles. I stacked some bearings I think.
Everything with the suspension is kind of squirrely? Let off quickly in a curve, strange sensation of spinning out but not doing it?
Going into a mountain curve and punching it is almost orgasmicly perfect.
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04-30-2020, 05:12 AM
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CC Member
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Join Date: May 2015
Location: Lake Geneva,
WI
Cobra Make, Engine: Classic Roadsters 427, 5.0
Posts: 365
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Not Ranked
All of this is really about "engaging brain before placing car in motion"! Too many guys (and gals) just point and push the throttle not aware of what can happen next.
When I was 13 and my uncle taught me to ride his BSA, he told me to "never be afraid of the bike. Respect it and always remember that everyone around you is intentionally trying to hit you, If you keep that in mind, you will remain safe".
It applies here with these cars. Respect it, keep it within your and the car's
limitations. And assume everyone around you will run into you.
Thom
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04-30-2020, 08:11 AM
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CC Member
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Join Date: May 2015
Posts: 626
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Not Ranked
Well Said
Quote:
Originally Posted by Chicagowil
All of this is really about "engaging brain before placing car in motion"! Too many guys (and gals) just point and push the throttle not aware of what can happen next.
When I was 13 and my uncle taught me to ride his BSA, he told me to "never be afraid of the bike. Respect it and always remember that everyone around you is intentionally trying to hit you, If you keep that in mind, you will remain safe".
It applies here with these cars. Respect it, keep it within your and the car's
limitations. And assume everyone around you will run into you.
Thom
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Well said, i agree. If i am going to cross paths i usually wait for eye contact...
__________________
Superformance 1764
Ford Racing 427 SB
Last edited by tortuga; 04-30-2020 at 08:12 AM..
Reason: Spelling
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