• Welcome to SVTPerformance!

[email protected] - 4200lbs race weight

Discussion in '2020+ Shelby GT500 Mustang' started by PIPO, Jan 19, 2019.

  1. tt335ci03cobra

    tt335ci03cobra Well-Known Member Established Member

    Messages:
    6,460
    Joined:
    Feb 15, 2008
    Location:
    USA
    One need only use this ingenious contraption:

    062AD761-4A36-448A-A378-A5C3D9537A19.jpeg It limits speed to 261mph as well because of additional drag coeficient, but once engaged returns gas free speed holding.

    Notice the wheels have also become jelotine carbide. The center hub is actually made of the delicious confection.
     
  2. blk02edge

    blk02edge Well-Known Member Established Member

    Messages:
    5,795
    Joined:
    Feb 20, 2008
    Location:
    BC
    If you want sketchy try a 900lb formula car LOL! seriously though, I did get to drive an s2k at the limit and yea, they are a sketchy snap oversteer cars. One of a few vehicles that have tagged the wall hard at our track. This new GT500 will feel incredible on track, I just can't afford the tire bill it would cost me for the amount i'm there
     
    tt335ci03cobra likes this.
  3. Cman01

    Cman01 hello Established Member

    Messages:
    2,322
    Joined:
    May 25, 2012
    Location:
    Toronto
    In my eyes, any car approaching 35-3600lbs. and over deserve porker status. A V6 S197 car is actually around 3500+lbs (checked on several sites).

    Stock 03 Cobra weighs a little over your weight on your car and yes a foxbody would be a slug to drive if they approached 2 tons but I guess it all depends on how the weight was distributed on the chassis and engine hp amount.

    I agree, a hefty car would be easier to drive at high speeds given enough hp, and limited cornering force ALA proper suspension geometry and aero are present but physics is physics. A heavy car will not in most cases out handle a light car all else being equal. Having mag shocks, larger sway bars and more aggressive aero will counter that to some degree but all else being equal I'll take a lighter weight car any day of the week over a heavier car.

    I also question the engineering into the high speed driveability of most American/Japanese cars, since in our market we have speed limits most cars are not going to see anything north of 100+mph in the real world (unless you break the law and speed or are on a track). The cars that do great on high speed cruising/stability are mostly Euro cars, the best cars for blasting down the German autobahn in my eyes are S class Mercedes, BMW 5/8 series (+M cars) and Porsches (911 gets my vote). American car makers don't put in the time and engineering costs to fine tune high speed driveability/stability like the German/Euro makes do.

    I'm going to correct you on a couple of things...…………..I believe we are talking stock vehicles here so basically a Miata doesn't hit 150 stock they show a top speed of around 130mph, also a C5 Z06 has a top speed of around 170-175mph so they don't hit 190mph. Early C5 vettes would suck out their door windows at around 125mph, when GM discovered this through owners complaining a window seal clip was added to each door so it wouldn't happen. I find it funny during their "thorough" high speed testing this didn't happen.

    2 other things come to mind for discussion: power/weight ratio and weight distribution. I'll get into that one tomorrow (this post is already too long LOL).
     
    tt335ci03cobra likes this.
  4. LostM

    LostM Well-Known Member Established Member

    Messages:
    758
    Joined:
    Jun 5, 2013
    Location:
    Delaware
    took mine to the 1/2 mile, as well as some mexico runs, I immediately upgraded supsension bits and braking. ass puckering to say the least. started in left lane, by top of 3rd was drifting right, into 4th and into the right lane. if i wasnt o far ahead of the ZR1, coulda been very bad
     
    tt335ci03cobra likes this.
  5. LostM

    LostM Well-Known Member Established Member

    Messages:
    758
    Joined:
    Jun 5, 2013
    Location:
    Delaware
    Did some more ricer math. Used an excel spreadsheet some racers use. All things look positive.
    I applied dimensions that we do know, and over-estimated what we dont ( worst case ), and left some inconsequential stuff predefined

    used a 13 GT500 WHP dyno #'s from 2013 Mustang GT500 Drag and Dyno - To The 9s - 5.0 Mustang & Super Fords Magazine

    the "JLT CAI" #s

    Even with 650whp ~750crank, larger frontal area, 4400lbs, car is still a decent 10.7/137mph car.. 3.5 0-60, and 1.9 60ft


    A1.JPG A2.JPG
     
    tt335ci03cobra likes this.
  6. tt335ci03cobra

    tt335ci03cobra Well-Known Member Established Member

    Messages:
    6,460
    Joined:
    Feb 15, 2008
    Location:
    USA
    Mines sitting at 3360+/- right now and I’d love to crack 3250, then eventually 3000. If they do ever put together a nice mag shock retrofit kit, I will do that. I’d love to go sla upfront.

    I’ve been 170 in a stock frc C5 and it was great. The glass hatch ones are a little worse for sure.

    The c5 z I rode in was heavily modified. My cobra does much better now than when it was stock.

    I’m not actually talking stock vehicles at all, I’m just going through physics of light and heavy cars.

    The lightest high performance car I can think of that would be stable and planted at high speed would be a Saleen s7, Mosler, or Ultima aero. All of those are basically race cars.

    I personally love a fun quick car that I can parnelli Jones very quickly into some real enjoyable hooning. Having driven gtr’s hard and fast, I can say I prefer my archaic full suspension/aluminum block/turbo terminator.
     
  7. gimmie11s

    gimmie11s Well-Known Member Established Member

    Messages:
    11,131
    Joined:
    Jun 1, 2004
    Location:
    so cal

    137 might be a little hopeful. Especially at 650 wheel. Could happen in great air on a great track, but good luck with that on the west coast.

    I don’t know how it’ll put up average 10-12 mph more than a 13/14 gt500 with only 50 less whp knowing how much the new car is going to weigh.

    Guess we’ll see.


    Sent from my iPhone using the svtperformance.com mobile app
     
    tt335ci03cobra likes this.
  8. LostM

    LostM Well-Known Member Established Member

    Messages:
    758
    Joined:
    Jun 5, 2013
    Location:
    Delaware
    the mph seems higher than what i would have thought as well, but playing with the shift speeds added some to it.

    as for 10-12 over previous generations, i think your forgetting the 13/14's had 650 chp stock, and we're using whp here. i just used a lightly modded 13's dyno for a curve reference.

    i really think we are in for a nice treat once these hit the asphalt
     
  9. PIPO

    PIPO Well-Known Member Established Member

    Messages:
    466
    Joined:
    Mar 23, 2018
    Location:
    Kansas
    Seen this on FB...could be fake or could be real. Can't wait for the real numbers.
     

    Attached Files:

    gimmie11s likes this.
  10. sqidd

    sqidd Active Member Established Member

    Messages:
    687
    Joined:
    Sep 3, 2002
    Location:
    My House
    Fake news
     
    gimmie11s likes this.
  11. sqidd

    sqidd Active Member Established Member

    Messages:
    687
    Joined:
    Sep 3, 2002
    Location:
    My House
    The GT500 weighs only 200# more than the $100,000 GTR. Which could be argued is its main competition.
     
  12. Snoopy49

    Snoopy49 Well-Known Member Established Member

    Messages:
    6,151
    Joined:
    Jun 12, 2012
    Location:
    California
    2013/14 had 662 HP.
     
  13. gimmie11s

    gimmie11s Well-Known Member Established Member

    Messages:
    11,131
    Joined:
    Jun 1, 2004
    Location:
    so cal
    13/14 cars dyno right around 600whp in factory form hence my comments about the 50hp difference.

    You’re right though... gonna be fun to see how she goes!


    Sent from my iPhone using the svtperformance.com mobile app
     
  14. Snoopy49

    Snoopy49 Well-Known Member Established Member

    Messages:
    6,151
    Joined:
    Jun 12, 2012
    Location:
    California
    Anyone know when the ZL1 went from 580 HP to 650 HP?
     
    Last edited: Mar 1, 2019
  15. sqidd

    sqidd Active Member Established Member

    Messages:
    687
    Joined:
    Sep 3, 2002
    Location:
    My House
    It was the second someone posted it on the internets. That's how the internets works.:)
     
  16. Snoopy49

    Snoopy49 Well-Known Member Established Member

    Messages:
    6,151
    Joined:
    Jun 12, 2012
    Location:
    California
    I was wondering about what model year, 2012-2019.
     
    sqidd likes this.
  17. tones_RS3

    tones_RS3 I like members members. Established Member

    Messages:
    15,784
    Joined:
    Jan 29, 2016
    Location:
    MA
    Got this off the Camaro ZL1 Wiki page,......


    Engines and transmissions[edit]
    The sixth generation Chevrolet Camaro is initially available with three engines driving the rear wheels:
    • The 2.0 L LTG Ecotec turbocharged Inline-4 produces 275 bhp (205 kW; 279 PS) at 5,600 rpm and 295 lb⋅ft (400 N⋅m) of torque at 3,000 rpm and is the first 4-cylinder in a Camaro since the 3rd generation. It is available on 1LS, 1LT and 2LT trims.
    • The 3.6 L LGX V6 generates 335 bhp (250 kW; 340 PS) at 6,800 rpm and 284 lb⋅ft (385 N⋅m) of torque at 5,300 rpm. It is 12 bhp (8.9 kW; 12 PS) greater than the previous generation's V6 and 35 bhp (26 kW; 35 PS) more than the sixth generation Mustang's V6.
    • The 6.2 L LT1 V8 is shared with the Chevrolet Corvette and produces 455 bhp (339 kW; 461 PS)[16] at 6,000 rpm and 455 lb⋅ft (617 N⋅m) of torque at 4,400 rpm, 29 bhp (22 kW; 29 PS) greater than the previous model standard V8 on 1SS and 2SS models.
    • The 6.2 L LT4 V8 will be featured on the ZL1 models. Output is 650 bhp (485 kW; 659 PS) at 6400 rpm and 650 lb⋅ft (881 N⋅m) at 3600 rpm of torque. The 2017 Camaro ZL1 will accelerate from 0 to 60 mph (97 km/h) in 3.2 seconds, covering the 1/4 mile in 11.0 seconds at 130 mph. The ZL1's official top speed is 198 mph (319 km/h).[17]
    All engines are available with 6-speed manual and 8-speed automatic transmissions, except for the ZL1 models which use a 10-speed automatic in addition to a standard 6-speed manual.
     
    Snoopy49 likes this.
  18. Snoopy49

    Snoopy49 Well-Known Member Established Member

    Messages:
    6,151
    Joined:
    Jun 12, 2012
    Location:
    California
    It looks like GM used the 580HP LSA engine in the 2012-2015 ZL1's and then upgraded to the 650 HP LT4 in 2016.
    I was trying to figure out how long it took GM to try and match the 2013-14 HP.
    So what are the chances that they will drop the 750 HP LT5 Corvette engine into the ZL1 just after Ford announces their HP figures?
     
    Last edited: Mar 1, 2019
    tones_RS3 likes this.
  19. tones_RS3

    tones_RS3 I like members members. Established Member

    Messages:
    15,784
    Joined:
    Jan 29, 2016
    Location:
    MA
    That car will be nasty if they did that!
    Correction,.....that car will be even NASTIER if they did that.
     
    gimmie11s likes this.
  20. Lacquer

    Lacquer Member Established Member

    Messages:
    50
    Joined:
    Apr 7, 2018
    Location:
    Banning, CA
    ...and still not a match for the GT500;)
     
    tones_RS3 and conceptmachine like this.

Share This Page