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View Poll Results: Who will win the race - March 8, LV Speedway
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The 458 Italia is unbeatable, wins all 3
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22 |
17.32% |
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The 458 Italia is beatable, and loses 1
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37 |
29.13% |
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The 458 Italia is beatable, and loses 2 or 3
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14 |
11.02% |
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The 458 Italia is beatable, but the Cobra's driver isn't good enough, so it loses all 3
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31 |
24.41% |
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The Italia's driver messes up, so it loses at least 1
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23 |
18.11% |
 1Likes
02-11-2011, 11:04 PM
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Senior Club Cobra Member
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Join Date: Nov 1999
Location: Folsom,
CA
Cobra Make, Engine: ERA 623, 427 S/C Cobra. Ford FE 428 Cobra Jet, Ford Nascar TL 4speed - with a touch of raw; "less is more" theme
Posts: 3,887
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Not Ranked
Aside from all the horsepower and engine spec talk, Tires, Track Temperature, and the ability to get traction off the line are going to be key factors for both cars, I would think.
__________________
Duane
Western States Cobra Group 1998-2016.
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02-11-2011, 11:14 PM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Not Ranked
Well that's certainly true Duane, but that 3 second's to 60 mph shows some serious potential. Gotta wonder what kind of tires were in play when that time was recorded?
It sure would be nice if someone could give us a clue what kind of rpm this monster is capable of. Come on,,, just one little clue! 
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02-11-2011, 11:41 PM
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Senior Club Cobra Member
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Join Date: Nov 1999
Location: Folsom,
CA
Cobra Make, Engine: ERA 623, 427 S/C Cobra. Ford FE 428 Cobra Jet, Ford Nascar TL 4speed - with a touch of raw; "less is more" theme
Posts: 3,887
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Not Ranked
Quote:
Originally Posted by Excaliber
Well that's certainly true Duane, but that 3 second's to 60 mph shows some serious potential. Gotta wonder what kind of tires were in play when that time was recorded?
It sure would be nice if someone could give us a clue what kind of rpm this monster is capable of. Come on,,, just one little clue! |
e.g. E, my thought is if the Cobra guy with say 600+hp runs the Billboard tires (I tried those at the strip twice - ugh, not great), and the Ferrari runs a modern street-race type tire, its going to make for two races in one; one race at the start and another race that will develop from the 3/4 point to the finish line. Do we know what rear tire type and size the Cobra owner is going to run for sure?
>>> Spinnin' aint winnin!
__________________
Duane
Western States Cobra Group 1998-2016.
Last edited by decooney; 02-11-2011 at 11:45 PM..
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02-11-2011, 11:21 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,592
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Not Ranked
From an old Otomix post:
"The elite Cobra to own, Professional built, advanced fit - finish - detail and
(32k) 511 SHELBY Alum, 2 four tunnel port 720hp by KCP. 5 speed tremic, polished stainless side pipes, all Kirkham extras (non stainless chassis). 500 hrs polished body, many extras plus original 1960s amber Ray Dots, Billboards, fire system+polished bottle. And more, will offer to good home @ $110.000.00.."
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02-12-2011, 02:04 AM
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CC Member
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Join Date: Feb 2000
Location: St. Lucia, West Indies,
WI
Cobra Make, Engine: Unique 427SC 383 stroker
Posts: 3,787
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Not Ranked
Given the size of Blitz's motor, what about a second gear launch? Any of you big-cube, lighter car jockeys ever tried this? How did it compare to a careful conventional launch?
__________________
Tropical Buzz
Grant me the serenity to accept the things I cannot change, the strength to change the things I can, and the wisdom to know the difference. -(wasn't me)
BEWARE OF THE DOGma!! Dogmatism bites...
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02-12-2011, 05:55 AM
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CC Member
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Join Date: Jul 2005
Location: Virginia Beach, Va & Port Charlotte, Fl.,
Posts: 2,292
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Not Ranked
Quote:
Originally Posted by Buzz
Given the size of Blitz's motor, what about a second gear launch? Any of you big-cube, lighter car jockeys ever tried this? How did it compare to a careful conventional launch?
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I can tell you this... If he does a second gear launch HE WILL LOSE!
The only chance is perfecting a 1st gear launch.
__________________
Too many toys?? never!
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02-12-2011, 06:40 AM
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Senior Club Cobra Member
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Join Date: Jun 2007
Location: Covington,
wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,029
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Not Ranked
Lot's of speculation regarding RPM's but it does not appear anyone has done their research.
The 482's on Keith's site call out a special grind Comp Cam hydraulic roller cam. I then looked at the Comp Cam site for FE hydraulic roller cams. Both sites list a maximum redline of 6200.
Please note that Keith does call out a "special grind", so it's possible that the 511 is higher, but if it is, I would not put it beyond 6500. It's the lifters that are the controlling factor.
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John Hall
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02-12-2011, 08:24 AM
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Senior Club Cobra Member
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Join Date: Aug 1999
Location: Ellington,
CT
Cobra Make, Engine: Classic Roadster 351W, T5, Red & White
Posts: 3,478
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Not Ranked
A search for " drag racing practice trees " brings up a number of web sites, such as :
" Practice Tree, Full Size, 6 ft., Aluminum, 25 lb. Base, 40 ft. Cable, Lighter Adapter, 25 Watt Bulbs, Kit "
http://www.summitracing.com/parts/PTS-3100/
http://www.summitracing.com/parts/PTS-3100/?rtype=10
Anyone ever use ?
Not a drag racer, but is there different opinions on using the water box depending if using street tires, DOT drag tires, slicks, etc ?
__________________
2014 Porsche Cayman S, 2014 M-B CLA 45 AMG,
Unkown:"Their sweet lines all but take my breath away, and I desire them as much for their beauty as for their use "
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02-12-2011, 08:40 AM
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Senior Club Cobra Member
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Join Date: Jun 2007
Location: Covington,
wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,029
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Not Ranked
One big issue with the water box with street cars is that the front tires then carry water with them into the staging area. If you are going to use the water box, then drive around it, and then back up into is to the front tires stay dry.
Remember, the front tires on drag cars are generally skinny.
__________________
John Hall
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02-12-2011, 05:41 AM
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CC Member
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Join Date: Feb 2006
Location: Naples,
FL
Cobra Make, Engine:
Posts: 183
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Not Ranked
Buzz,
Good Idea, but we need to know what the Ring & Pinion ratio is.
Does anyone know?
Blitz, what is your speed at 5,000 RPM in first and second gears? If your speedo is accurate, we could estimate it from that.
Kevin
Last edited by KevinM; 02-12-2011 at 05:44 AM..
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02-12-2011, 08:56 AM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Silverback says,
Quote:
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...maximum redline of 6200.
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That what I was saying earlier. The hydraulic rollers are generally limited to even less than that. Going beyond 5,800 or so requires some serious valve train geometry and lifter technology ($$$). Not typical of a high rpm engine, even less so with a really BIG engine.
I wonder what kind of cam/valve setup the Ferrari F150 runs? Solid lifters I would think, due to it's extreme rpm limits.
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02-12-2011, 03:32 PM
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CC Member
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Join Date: Jul 2005
Location: Virginia Beach, Va & Port Charlotte, Fl.,
Posts: 2,292
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Not Ranked
Quote:
Originally Posted by Excaliber
Silverback says,
That what I was saying earlier. The hydraulic rollers are generally limited to even less than that. Going beyond 5,800 or so requires some serious valve train geometry and lifter technology ($$$). Not typical of a high rpm engine, even less so with a really BIG engine.
I wonder what kind of cam/valve setup the Ferrari F150 runs? Solid lifters I would think, due to it's extreme rpm limits.
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Mine actually pulls hard all the way past 6K and my hydraulic roller in my Z06 pulls hard past 7K. How much experiance with hydraulic rollers do you actually have?
__________________
Too many toys?? never!
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02-12-2011, 01:52 PM
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Super Moderator
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Join Date: May 2001
Location: Fresno,
CA
Cobra Make, Engine: KMP 184/482ci Shelby
Posts: 14,448
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Not Ranked
Ahem...timing is assolutely everything.
__________________
Jamo
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02-12-2011, 03:11 PM
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CC Member
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Join Date: Nov 2008
Cobra Make, Engine:
Posts: 403
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Not Ranked
Quote:
Originally Posted by Jamo
Ahem...timing is assolutely everything.
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Funny typo considering your avatar!
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02-12-2011, 03:18 PM
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CC Member
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Join Date: Feb 2000
Location: St. Lucia, West Indies,
WI
Cobra Make, Engine: Unique 427SC 383 stroker
Posts: 3,787
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Not Ranked
Thass no typo. He does it all the time - Ass anybody whose been around for a while.
__________________
Tropical Buzz
Grant me the serenity to accept the things I cannot change, the strength to change the things I can, and the wisdom to know the difference. -(wasn't me)
BEWARE OF THE DOGma!! Dogmatism bites...
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02-12-2011, 03:35 PM
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CC Member
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Join Date: Nov 1999
Location: Brisbane, Australia,
Q
Cobra Make, Engine: Contemporary CCX3117 427FE
Posts: 4,381
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Not Ranked
Assolutely gets 209 search results on CC....
Here's one of the first search results on Google
Did anyone call out BLITZ on his "800 horse" claim in the track video? Whatever the cam, rpm, cubes, compression... if the motor can get 550 to the ground as per the recent chassis dyno results, the race is his for the taking.
That said, I'm still leaning towards the Ferrari. A high stakes poker player must need nerves of steel and massive ability to control their emotions when required, but I'm not sure how that will transfer to an ability to string a perfect 1/4 mile run together.
__________________
Craig
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02-12-2011, 05:04 PM
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Super Moderator
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Join Date: May 2001
Location: Fresno,
CA
Cobra Make, Engine: KMP 184/482ci Shelby
Posts: 14,448
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Not Ranked
damn Asstralians
__________________
Jamo
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02-12-2011, 07:21 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Hey Tommy,
Wish I could join you and our CACC boys on Tues at the track. I have a 427 S/O and Billboards, not as light or as high HP as Blitz's, but could have given you a benchmark of sorts. Take vids pls!
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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02-12-2011, 09:29 PM
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CC Member
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Join Date: Nov 2007
Cobra Make, Engine: Contemporary-427 stroker
Posts: 349
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Not Ranked
Question for the masses
What gets you to the finish line first??? Torque or horsepower???
Does it matter if a motor makes 600 horsepower at 5800 rpm or 7200 rpm???
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02-14-2011, 07:30 PM
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CC Member
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Join Date: Aug 2007
Cobra Make, Engine: 31XX Car
Posts: 374
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Not Ranked
Torque vs HP
Quote:
Originally Posted by Mdman352
What gets you to the finish line first??? Torque or horsepower???
Does it matter if a motor makes 600 horsepower at 5800 rpm or 7200 rpm???
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Alot of the myths are debunked here: http://www.lainefamily.com/hp.htm
The big problem with making alot of torque at a lower rpm is greater difficulty in getting the tires to hook up, then the power drops off after you're going down the track when you need it most. A number of the highly turbocharged tuner cars limit the boost in the lower gears so you can get off the line better and then they let it come in after torque multiplication is lower in the higher gears.
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