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What do stock LS1's dyno/run in the 1/4?

This is a discussion on What do stock LS1's dyno/run in the 1/4? within the Dyno Information forums, part of the Racing Forums category; 1999 T/A stock 13.8 bout 60 degree cloudy day no humidity, same day bro ran his 2002 WS6 stock 13.4 ...

  1. #81
    shobes ta
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    1999 T/A stock 13.8 bout 60 degree cloudy day no humidity, same day bro ran his 2002 WS6 stock 13.4 same conditions, Mustang GT 14.9 boo ya!

  2. #82
    shobes ta
    Guest
    wasnt sure really where to post my question where i would get the best results.... so heres the big question Im thinking about puting a set of cylinder heads and a nice .550 .580 lift camshaft in my car.. .. I thing thats been floating around.. I hear you have to pull your motor to be able to put the camshaft in? True? Not True? Also could you just pull your radiator out and your front bumer and put the camshaft in then?

  3. #83
    shobes ta
    Guest
    wasnt sure really where to post my question where i would get the best results.... so heres the big question Im thinking about puting a set of cylinder heads and a nice .550 .580 lift camshaft in my car.. .. I thing thats been floating around.. I hear you have to pull your motor to be able to put the camshaft in? True? Not True? Also could you just pull your radiator out and your front bumer and put the camshaft in then?

  4. #84
    lee1rbc
    Guest
    My A4 95Z28 with air foil,ported M/A,cold air, cat back exh ran a 13.9 at 99mph.
    My A4 98TA with K&N air filter ran 13.28 at 104mph and dynoed at 301hp 315ftlbs. They said it doesnt make a difference but my dyno was done on a 95deg day in NC.

  5. #85
    used and abused at wot ibanez7's Avatar
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    Damn I can’t believe how many of you forgot to mention that 98-2000 Ls1 dyno completely different then 2001-2002 ls1.

    98-2000 ls1 do have a hard time breaking 300rwhp stock. Some as low as 287 some as high as 310

    01-02 should consistently be around 315rwhp stock. Some as low as 300 some as high as 330

    With about 13% drive-train loss:
    98-2000 ls1 crank hp about 325 about!
    01-2002 ls1 crank hp about 340 about!

    Drive-train loss: GMHTPM rates drivetrain loss at 13%, many others take it has high as 18%. Yes the difference between A4 and M6 plays a part too, M6 suffer less loss.

    Yes dyno numbers do range and vary, due too many factors. The two biggest factors being; GMs tolerance or should I say “loose slop”, and the dyno machine.

    GM engine geometric tolerance and slop:
    The difference between an F-body and a hand built Lamborghini is tolerance slop. Precision cost $$$$ during fabrication. For sake of numbers GM designs to a +/- .005 and lambo builds to +/- .00005. That slop by GM equates to cheaper cost cars and inconsistencies.

    Hence why there are factory freaks and extreme swings from low to high on dyno machines(even if is the same dyno machine). Every engine breaks in differently and responds differently.

    Dyno Machines:
    Eddys and Mustang dyno always show lower numbers then dyno-jet, it’s a know fact!

    No matter where you look from here at ls1.com to heavy knowledge based ls1tech.com to GM High tech performance magazine, dyno number range by an extreme amount. Dyno numbers are just a good reference point to see the power difference with new parts.

    As far as 1/4 mile times, ls1 01-02 F-BODYS have been know to break into the 12s while completely stock, while some run low 14’s.
    It depends on the driver and traction. With average traction and an average (performance driver) should see consistent low 13s. With a great driver you should see 12s in an m6 too.

    Also f-body ls1 DO put out the same hp as ls1 vettes.

    My 01 z28 m6.
    I was able to run 12.9x at Great Lakes Drag, with just a lid and deflated rear tires.
    With a lid, LTs, ORY I dynoed on a dyno jet, 347rwhp and 356rwtq.

    for more facts read!!!

    http://www.ls1tech.com/forums/showthread.php?t=213148

  6. #86
    WishIHadAPantera
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    Quote Originally Posted by ibanez7
    Damn I can’t believe how many of you forgot to mention that 98-2000 Ls1 dyno completely different then 2001-2002 ls1.

    98-2000 ls1 do have a hard time breaking 300rwhp stock. Some as low as 287 some as high as 310

    01-02 should consistently be around 315rwhp stock. Some as low as 300 some as high as 330

    With about 13% drive-train loss:
    98-2000 ls1 crank hp about 325 about!
    01-2002 ls1 crank hp about 340 about!

    Drive-train loss: GMHTPM rates drivetrain loss at 13%, many others take it has high as 18%. Yes the difference between A4 and M6 plays a part too, M6 suffer less loss.

    Yes dyno numbers do range and vary, due too many factors. The two biggest factors being; GMs tolerance or should I say “loose slop”, and the dyno machine.

    GM engine geometric tolerance and slop:
    The difference between an F-body and a hand built Lamborghini is tolerance slop. Precision cost $$$$ during fabrication. For sake of numbers GM designs to a +/- .005 and lambo builds to +/- .00005. That slop by GM equates to cheaper cost cars and inconsistencies.

    Hence why there are factory freaks and extreme swings from low to high on dyno machines(even if is the same dyno machine). Every engine breaks in differently and responds differently.

    Dyno Machines:
    Eddys and Mustang dyno always show lower numbers then dyno-jet, it’s a know fact!

    No matter where you look from here at ls1.com to heavy knowledge based ls1tech.com to GM High tech performance magazine, dyno number range by an extreme amount. Dyno numbers are just a good reference point to see the power difference with new parts.

    As far as 1/4 mile times, ls1 01-02 F-BODYS have been know to break into the 12s while completely stock, while some run low 14’s.
    It depends on the driver and traction. With average traction and an average (performance driver) should see consistent low 13s. With a great driver you should see 12s in an m6 too.

    Also f-body ls1 DO put out the same hp as ls1 vettes.

    My 01 z28 m6.
    I was able to run 12.9x at Great Lakes Drag, with just a lid and deflated rear tires.
    With a lid, LTs, ORY I dynoed on a dyno jet, 347rwhp and 356rwtq.

    for more facts read!!!
    That has to be about the best writeup I've seen... thanks for taking the time to post it!

  7. #87
    Jesus died to save you! Killer_bluebird's Avatar
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    Navy Blue Metallic
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    If I remmember correctly Driveline loss is in the 13% range for Manual 6 speed, 15% for an Automatic 4 speed and 18% if you are a Mustang!

  8. #88
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    I ran a 13.376@104.36 in my 2000 Z28 A4 last night

    I was racing my friend in his 2005 C6 A4 and i beat him every time. His best was 13.6@106 WITH A 2.0?? 60 ft time. Im not sure what his problem but I think he should have beat me.

    When my car was stock it did 13.5@102 Since then i have added MTI clear lid, Blue MAF ends, K&N filter and free ram air mod to run the 13.376@104


    My next mod will be a good cat back with exhaust cut out, maybe a 13 flat!!!!!!!!!

    I am very happy with how my car is running

  9. #89
    Member svt_eater's Avatar
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    Kudo's Pantera! Sometimes someone just needs to set things straight. You make a great point.

    Nice numbers tx...ls1. Did your buddy have his traction control on or something? I'd be taking my 'vette back if I ran a measly 13.6. Some of my best times were with some decent wheelspin off the line, so it is not likely to be that. I would guess a 1.8 60' would be more what I'd be looking for in that.

  10. #90
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    he said he had it off. My dad had a 99 Cadillac Deville it semed like when i had the traction control off it was realy on cuz it would just bog down off the line and when it was on thats when it would spin the tires just right and would get the best times and not bog down.

    dont know what he deal was but maybe the same deal with my friends 05 vette

    The Cadillac ran a 15.4@90

  11. #91
    used and abused at wot ibanez7's Avatar
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    Quote Originally Posted by WishIHadAPantera
    That has to be about the best writeup I've seen... thanks for taking the time to post it!
    no problem and thank you!

  12. #92
    Junior Member Nate00SS's Avatar
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    Quote Originally Posted by Mr. Luos
    I race at 5800 feet up. Bandimere.

    Stock LS1 F-Body's seem to run upper 14's. A couple get mid 14's. Not seen one deep into the 14's without a couple mods.

    He is right on. I ran my bone stock 00 SS m6 and turned a 14.7 @ 98.9mph. That's spinning pretty good, I have a very hard tire, I like them to last more than a month. A lot of the a4's run better et's. Not many people understand that running this high above sea level really kills our ability to make big power.

  13. #93
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    I love Houston Raceway Park. Its 30ft above see level and cars seem to run great there. They also keep the track in perfect condition

  14. #94
    Junior Member Nate00SS's Avatar
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    Quote Originally Posted by RedRamAir2000
    my 2000 a4 ram air with hooker 1 3/4 full leanth headers and slp loadmouth. ran 12.70 at 111 all stock just exhaust

    First of all that's not ALL STOCK. Plus you drive an A4. Like that's hard. try to run a 1.9 sec. 60' in a M6 with street tires at the track. I don't think anyone can. Unless you slip the shit out of your clutch. Then i still don't know if it is possible. I invite you to come race at Bandimere. You won't run better than a 13.5. not a chance.

  15. #95
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    No dyno #'s but my 2000 SS M6 went 13.22 at 106.7 mph with a 2.08 60ft fading clutch. but that was with LT's, Cat back, 3.73's, air intake, Power programmer. no idea on the elevation... i think i got one of the dogs as far as the avg LS1's go.

  16. #96
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    Quote Originally Posted by ibanez7
    Damn



    Dyno Machines:
    Eddys and Mustang dyno always show lower numbers then dyno-jet, it’s a know fact!



    http://www.ls1tech.com/forums/showthread.php?t=213148
    303 rwhp with lid 336 rwhp with headers ls6 intake and magnaflow on a MUSTANG DYNO (99SS M6)
    ? why so much higher numbers with 2001/2002 ls1 ? the ls6 intake.
    Last edited by skar; 05-18-2006 at 09:04 AM.

  17. #97
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    I have a 02ss with slp options includes the blackwing box, cat back dual dual. The factory rated it at 345rwhp I wanted to add some stuff to it but before I did I had it dyno and it was 345rwhp. I could not believe it but that what it ran. Since then I added a mass air sensor BBK throttle body and got a Diablo turner and I can tell it is faster now but I haven't made another run on the dyno yet. I haven't taken it to the track yet so I don't know what it runs in the 1/4.

  18. #98
    2000z28
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    i dynoed my 2000 z28 with a chip and flowmaster exhaust at torque freaks in Portland, OR and they said my car was only getting 287 rwhp with 289 torque, and then last week i ran a 13.5 1/4 mile at 103 mph, i was wondering if maybe their dyno isnt accurate? has anyone else gotten dyno numbers like that ?

  19. #99
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    What should my 98 Z28 with 3.23 gears, built tranny, 2500 converter, energy mount, K+N filter, headers, Y-pipe, Loudmouth II exhaust, racetronix fuel pump, vette wheels 275s/315s and eibach springs run?

  20. #100
    Member since 1998 DarthD's Avatar
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    Black ASC#7564 May11,2001
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    2000z28, what kind of dyno was it?

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