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  • #46
    Re: Top speeds in 3.8 Fbodies

    ok im just saying even with 3.08s, im pretty sure ud run out of gear doing like 160 in an A4....i COULD believe 180(and thats pushing it) but 212....that means that like theoretically the new Z06 or a viper could go like 350?

    can u show you math work please.

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    • #47
      Re: Top speeds in 3.8 Fbodies

      ok fine. Ohp, just knocked you out, I win, sorry. ;(

      Comment


      • #48
        Re: Top speeds in 3.8 Fbodies

        Originally posted by F-Body_SS-Man View Post
        ok fine. Ohp, just knocked you out, I win, sorry. ;(
        nope... i just dodged it... im a rocky fan... i can do that... *jab* :)

        Comment


        • #49
          Re: Top speeds in 3.8 Fbodies

          Very interesting read.

          I pinned the speedo in my 98 firebird an watched the tach just move up slowly in overdrive from 4.5k to 5k when i let off the accelrater. I was running a 3.08 and an open diff at the time. I assume i was going between 130 an 135 but it took a minute to get up there.

          When i first bought the car i read about the speed limiter but my car doesn't seem to have it. I have done a few 125mph runs with friends to show of this phenomenon. All we can guess is previous owner had it tuned for the full exhaust, and intake only.

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          • #50
            Re: Top speeds in 3.8 Fbodies

            Originally posted by Finkledbody View Post
            Very interesting read.

            I pinned the speedo in my 98 firebird an watched the tach just move up slowly in overdrive from 4.5k to 5k when i let off the accelrater. I was running a 3.08 and an open diff at the time. I assume i was going between 130 an 135 but it took a minute to get up there.

            When i first bought the car i read about the speed limiter but my car doesn't seem to have it. I have done a few 125mph runs with friends to show of this phenomenon. All we can guess is previous owner had it tuned for the full exhaust, and intake only.
            your car came with full exauhst, intake, and a tune? nice...

            Comment


            • #51
              Re: Top speeds in 3.8 Fbodies

              Yeah it is nice, it had a flowmaster exhaust system but i replaced it with a magnaflow. The pacesetter headers are pretty rusted though. I bought it at a local dealership, it also came with full suspension and STB. The car seems to be a freak but i haven't found time to get to the strip because last year i blew the rear axle preventing me. Maybe this year i can get out there.

              Comment


              • #52
                Re: Top speeds in 3.8 Fbodies

                Originally posted by Finkledbody View Post
                Yeah it is nice, it had a flowmaster exhaust system but i replaced it with a magnaflow. The pacesetter headers are pretty rusted though. I bought it at a local dealership, it also came with full suspension and STB. The car seems to be a freak but i haven't found time to get to the strip because last year i blew the rear axle preventing me. Maybe this year i can get out there.
                yea.. sounds like it... get out there and get some 1/4 mile times with it

                Comment


                • #53
                  Re: Top speeds in 3.8 Fbodies

                  I hit 135ish in my car...(search for my posts, I have posted the details don't remember them anymore, might have been 140)

                  -2k 3.8L
                  -T-tops off
                  -cutout open on a factory system
                  -tune was stock except for the speed limiter removed(YES, I know that is not stock, since the speed limiter was removed, I don't want to get into a 12 page argument about this like I had to last time)


                  Car I think was hanging around 4k rpms in 5th was restricted by wind resistance


                  mods on car that really wouldn't affect it much
                  -z28 sways
                  -275s on zr1s
                  -auburn lsd
                  -I think I had my bilsteins in the car, either that or they were dead factory shocks.

                  Comment


                  • #54
                    Re: Top speeds in 3.8 Fbodies

                    Originally posted by Niko97RS View Post
                    ok im just saying even with 3.08s, im pretty sure ud run out of gear doing like 160 in an A4....i COULD believe 180(and thats pushing it) but 212....that means that like theoretically the new Z06 or a viper could go like 350?

                    can u show you math work please.
                    http://www.f-body.org/gears/
                    ^enter in "98 F-Body A4," change the gear ratio to 3.08, then push calculate.

                    also, this applies to you as well

                    Originally posted by Smoke Panther View Post
                    How fast can a stock V6 f-body can actually get in real life? I don't know. But, what I do know is that, in each case, it will never go above the aforementioned speeds.

                    Comment


                    • #55
                      Re: Top speeds in 3.8 Fbodies

                      90mph is the fastest i've had the bird :) not much into goin fast anymore. I do break speed limit all the time though. Well known for runnin right under 70 (68, 69) in a 55 all the time. Don't typically get pulled over around here til u hit that 70 mark.

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                      • #56
                        Re: Top speeds in 3.8 Fbodies

                        Firebird Go Fast And Wind Get It Way! Rpms Are High! I Go Fast! In My Firebird! Fast I Go! We Should All Go Fast! Yay!

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                        • #57
                          Re: Top speeds in 3.8 Fbodies

                          Originally posted by cantrip View Post
                          Firebird Go Fast And Wind Get It Way! Rpms Are High! I Go Fast! In My Firebird! Fast I Go! We Should All Go Fast! Yay!
                          I swear you're the weirdest fackin guy..


                          Originally posted by SSMOWS6
                          i mean, you can always fly wes out there and since he's a tool sometimes, fashion him into a plow for the maro
                          R.I.P. '07 Pats
                          Still... 18-1 > 1 and done

                          Comment


                          • #58
                            Re: Top speeds in 3.8 Fbodies

                            Originally posted by cantrip View Post
                            Firebird Go Fast And Wind Get It Way! Rpms Are High! I Go Fast! In My Firebird! Fast I Go! We Should All Go Fast! Yay! Mullet Flying Through The Air!
                            now its better
                            Welcome future UK stars... Darius Miller, Deandre Liggins, Kevin Galloway, Josh Harrellson

                            Comment


                            • #59
                              Re: Top speeds in 3.8 Fbodies

                              Originally posted by Fireball27 View Post
                              I swear you're the weirdest fackin guy..
                              I'll take that as a compliment. Thanks.

                              Comment


                              • #60
                                Re: Top speeds in 3.8 Fbodies

                                I just read through this thread because I was curious myself about top speed. I was doing about 110 -120 and I let off when I heard I had another gear left : 0 .. I don't know how fast that thing will do but I can tell you the speedometer isn't going to tell you!!

                                Comment

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