buick vs cobra vs ls1

Discussion in 'Kill Stories (Where Hemis Never Win)' started by stamper91, Nov 8, 2017.

  1. stamper91

    stamper91 Active Member

    hopefully a kill story to come, this saturday is the final test and tune of the season. a few friends have give the old buick a hard way to go. so i felt best way to settle it would be on the strip. my car is a 72 skylark with a 455 9:1 compression, b4b intake, headers, holley 850, msd throughout, 284-88 cam, 350th 3k stall 9 in converter 3.23 posi, can this old girl run with a stock 96 cobra 5 speed and a 99 ss camaro 6 speed? both the camaro and cobra are in stock condition minus shifters and dual exhaust. all three cars will be running mt et streets
     
    300sbb_overkill likes this.
  2. 300sbb_overkill

    300sbb_overkill Well-Known Member

    No contest Dude, you all ready win if your car runs as good as the parts you have in it!

    You're going to be in the mid to low 12s while the Cobra is lucky to be in the high to mid 13s and the '99 Camaro will be lucky to hit the low 13s, I am thinking you will taking there $$ if in they are dumb enough to bet! :D GL
     
    Nailhead Ronnie likes this.
  3. stamper91

    stamper91 Active Member

    the cobra ran a best fo 13.9 on a full slick this spring
    no time on the ss or mine
     
  4. 300sbb_overkill

    300sbb_overkill Well-Known Member

    As long as you can get anything that resembles traction you shouldn't have a problem with either car unless they're sand bagging ready to push that 100 HP shot of No2 when you line up against them.

    Race the Junkstain first and just barely beat him so the Camaro doesn't chicken out. When you line up against the Camaro let both of them really know what your Buick is all about! Fun stuff, let us know how you do.
     
    Nailhead Ronnie likes this.
  5. 1972Mach1

    1972Mach1 Just some guy.....

    You should slaughter the Mustang, they didn't get fast until the "Terminator" blown versions came out. The Camaro might be a different story, but I bet you still have it covered.
     
    Nailhead Ronnie likes this.
  6. Fox's Den

    Fox's Den 22 years of racing the same 355 Buick motor

    You WILL kill both of those cars. By the time they get that thing rolling you will be way out front. Don't let Anyone under estimate the power of the 455. Both of them will be trying to beat you so badly they will be spinning their tires out of the hole. Plus they have to be able to shift those 5-6 speed cars. Bang second and say good bye.

    Come on, I run a 13.65 with a 355 Buick motor what you think now about that 455?

    I beat a Mustang that had a supercharger on it with my 125 shot of nitrous.

    13.9 Stang on slicks Ha Ha. piece of cake.

    If they run slicks I would say you should do it MT drag radials work great.
     
    Nailhead Ronnie likes this.
  7. StagedCat

    StagedCat Platinum Level Contributor

    Practice your launch, get that right(or even a lil spin) and then its game over for your buddies......
     
    Nailhead Ronnie likes this.
  8. stamper91

    stamper91 Active Member

    Results! Buick ran a 13.7 mustang 14.4 Camaro didn't show. And half tracked an srt4

    Had a bad top end issue only gained 8 mph between 1/8 & 1/4 mile

    Feel the car should have been low 13 high 12 but guess the 455 don't push what I thought it would
     
  9. gsfred

    gsfred Founders Club Member

    You should have picked up more mph than 8. What was your top end MPH. Might want to put your time slip info up. Lots of racers on the board that can jump in with recommendations.
     
  10. flynbuick

    flynbuick Super Moderator Staff Member

    Perhaps fuel delivery is your top end limitation?
     
  11. stamper91

    stamper91 Active Member

    Keep getting upload error but here is how it plays out

    .032 reaction
    I1-2.048
    I2-5.598
    I3-8.622 @ 80.47 mph
    1/4-13.772@ 88.591

    Car felt like it had no power after 1st gear did not want to rev, shifted out at 5500 valves started to float when I went through qtr in 2nd
     
  12. stamper91

    stamper91 Active Member

    Think it's time to step up to an electric fuel pump, until today this car has never seen any loads except a few wot stabs and 1st and 4k 2nd gear pulls
     
  13. BrunoD

    BrunoD Looking for Fast Eddie

    If fuel does not help,I would try changing the valve springs,you are loosing too much power at mid track.That's my opinion anyway.Bruno.
     
    300sbb_overkill likes this.
  14. 1972Mach1

    1972Mach1 Just some guy.....

    Yes, that is a very low mph for a car in the 13s. You're either losing spark, fuel, or valves are floating most likely.
     
  15. gs66

    gs66 Well-Known Member

    Make sure the carb is opening all the way up, maybe the linkage is binding. I have seen that happen, simple fix.
     
  16. faster

    faster Well-Known Member

    Cobra needs a driver. My 97 Cobra (completely stock except for the Nitto NT05's) ran a 13.28 with my then 20 year old son driving.

    Mikey
     
    wildcat4 likes this.
  17. rkammer

    rkammer '71 GS455 Arctic White

    I like either valve float or fuel starvation. With an 80 MPH 1/8th speed you should be going at least 100 MPH at the top and more like 102-103. With traction and a good converter that equates to at least 13 flat in the 1/4.

    Just noticed you were going 88 MPH in 2nd gear at the end of the quarter. Assuming a 27 in. tall tire, that equates to a little over 5400 RPM. Why didn't you shift into 3rd gear earlier to see if it would go faster? Is your tach accurate? What RPM were you shifting out of 1st gear at?
     
    Last edited: Dec 4, 2017
  18. BUQUICK

    BUQUICK I'm your huckleberry.

    Hopefully you can get yours ironed out before you run the '99 Camaro SS. My '99 WS6 Formula Firebird 6-speed (mechanically the same car as the Camaro) ran 13.2 @ 109.7 with the only performance modification being a 4.10 gear. With a set of drag radials it would easily dip into the 12s. With the parts list you have in your car I suspect it should run 12s after it get it all figured out. Good luck and keep us posted.
     
    300sbb_overkill likes this.
  19. stamper91

    stamper91 Active Member

    New engine going together now, wiseco pistons 464 ci, aluminum heads, 413 cam. if this combo doesnt break 12.9 im selling all the big block buick stuff i got and going w a bbc or a buick 350 turbo setup
     
  20. 1972Mach1

    1972Mach1 Just some guy.....

    If you can't get into the 12s with that combo, it's not the engine's fault......
     
    PGSS, sriley531 and hugger like this.

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