Results 1 to 13 of 13

what is your top speed on 3rd gear?

This is a discussion on what is your top speed on 3rd gear? within the General Help forums, part of the LSx Technical Help Section category; around 6k rpm or 6500 rpm what would be your best on 3rd gear? (for manual transmission only)...

  1. #1
    Senior Member Musclefan21's Avatar
    Join Date
    Apr 2006
    Location
    IL
    Posts
    1,155

    1997 Formula & 2003 cobra

    what is your top speed on 3rd gear?

    around 6k rpm or 6500 rpm what would be your best on 3rd gear?
    (for manual transmission only)

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    105 MPH
    Stock LS1 redline...6200 RPM's.

  3. #3
    Senior Member Musclefan21's Avatar
    Join Date
    Apr 2006
    Location
    IL
    Posts
    1,155

    1997 Formula & 2003 cobra
    Quote Originally Posted by Mr. Luos View Post
    105 MPH
    Stock LS1 redline...6200 RPM's.
    oh, yesterday l was on 3rd gear like 2k rpm and l floored, the car reached 110mph and l stopped accelerating. l dont know which rpm l was in but the car wasnt screaming a lot. l might be on 5-6k rpm l believe. l was just curious how ls1s were..

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Your gearing is higher (which is a lower number).

    Once I put in the 4.11's with the new rear end that number will be lower.
    Should be around 96 MPH with the new gears, 6700 RPM's, and 26" tall tires.

    Per the calculator I used, stock is actually 106 MPH with 3.42 gears and 6200 redline on a 6-speed LS1 F-Body.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

  5. #5
    Member
    Join Date
    Jun 2006
    Location
    Bakersfield, California
    Posts
    152

    red
    1959 corvette

    Ive got 4.11s and 3rd gear tapped out at 6050rpm is about 88 mph, no cam in my car yet, might get closer to 95-100 with cam.
    My mods on the 99 FORMULA
    Whisper lid, K&N, B&M Short Throw, CAI, Magna Flow Exhaust, UMI torque arm, FT LT hdrs, ORY, dual cutouts, 4.11 Gears, BMR SFC, BMR MSB, BMR lower control arms, Poly motor and tranny mounts, 575/568 232/227 111 lobe cam, Taylor wires, ngk tr55s,1 10in. JL W3 for beat.

  6. #6
    Senior Member Musclefan21's Avatar
    Join Date
    Apr 2006
    Location
    IL
    Posts
    1,155

    1997 Formula & 2003 cobra
    l wanna have 4.10s too but people told me that it would kill my top end.. which means on highways, l would get my ass kicked all the time..

  7. #7
    Junior Member crazycat's Avatar
    Join Date
    Jun 2006
    Location
    new york
    Age
    46
    Posts
    60

    red
    95 z28 convertible

    Quote Originally Posted by doodad View Post
    l wanna have 4.10s too but people told me that it would kill my top end.. which means on highways, l would get my ass kicked all the time..
    I had 3.73 in my 95 z and it was to tall so I just installed 4.10s and I am happy with them. I still cant use 6th gear unless Iam going over 65mph. so you will still have plenty of top end.all so Iam running 18" wheels.....

  8. #8
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by doodad View Post
    l wanna have 4.10s too but people told me that it would kill my top end.. which means on highways, l would get my ass kicked all the time..
    Even with my 4.11's and stock size tires 4th gear will still go to 124 MPH or so.

    Autos are better suited with the 3.73's though.

  9. #9
    Senior Member ss~zoso~ss's Avatar
    Join Date
    Dec 2004
    Location
    )
    Posts
    9,128

    SS: NBM, tan top
    1998-SS, 2010 Jetta TDI

    idk even with 4.10's you could still put her into 6th if you needed to race on the highway no? or would that just not pull at all really well not enough for racing i guess idk

  10. #10
    The Rookie
    Guest
    110mph in third for my stock SS. Planning on 4.10's in the near future though.

  11. #11
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by ss~zoso~ss View Post
    idk even with 4.10's you could still put her into 6th if you needed to race on the highway no? or would that just not pull at all really well not enough for racing i guess idk
    A highway run or two isn't a big deal in 5th.

    Normally though, you don't want to race in any gear above your 1:1 gear...in our case that is 4th.
    Don't want to be shifting into 5th racing. It is an overdrive gear, not meant for racing or taking hard shifts.

  12. #12
    ILL SKEET IN YUR EYE
    Join Date
    Jun 2006
    Location
    bay area california
    Posts
    321

    black on black on black
    02 z28

    i loved my 410 's when i was going light to light...but with stock cam it needed more rpm... then when you try to get on it on the freeway it felt like something was wrong, i hated it... now i like my 373's but would the 410s pull harder with a big ass cam..

  13. #13
    Junior Member
    Join Date
    Jul 2006
    Location
    Lafayette/Indy, IN
    Age
    33
    Posts
    19

    Rally Red
    2000 Camaro Z28

    90 mph in 3rd gear for me is 6624 rpm with 4.33 gears with a 315/35R17 nitto out back.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •