XR1 vs B/G

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  • ZERO25
    Senior Member
    • Aug 2018
    • 5240

    #1

    XR1 vs B/G

    When trying to decide to buy a car last year, we ran into Mark at a race and asked his opinion on a car for a 602 class. He said "the xr1 will be better, because it rolls easier". Anyone know the why?
  • MasterSbilt_Racer
    Senior Member
    • May 2007
    • 14304

    #2
    I'd say he's talking about driveshaft alignment at race attitude.
    Modern Day Spec Wedge Racing

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    • ZERO25
      Senior Member
      • Aug 2018
      • 5240

      #3
      Is the crossmember higher?

      I know the rf spring is quite a bit softer, so im assuming theres more travel before it gets into the bump too hard.

      What about length of j-bar?

      Comment

      • MasterSbilt_Racer
        Senior Member
        • May 2007
        • 14304

        #4
        Originally posted by ZERO25 View Post
        Is the crossmember higher?

        I know the rf spring is quite a bit softer, so im assuming theres more travel before it gets into the bump too hard.

        What about length of j-bar?
        I don't think those things address rolling resistance.
        Modern Day Spec Wedge Racing

        Comment

        • noitall93w
          Senior Member
          • Aug 2020
          • 181

          #5
          Ever think it’s because he’s in the making money business? Lol

          Comment

          • fastford
            Senior Member
            • Dec 2008
            • 4059

            #6
            you may be onto something noitall , he is probably selling more cars to crate racers than super,s right now.....

            Comment

            • ZERO25
              Senior Member
              • Aug 2018
              • 5240

              #7
              Originally posted by MasterSbilt_Racer View Post
              I don't think those things address rolling resistance.
              Do you think he was referring to resistance?

              Comment

              • MasterSbilt_Racer
                Senior Member
                • May 2007
                • 14304

                #8
                Originally posted by ZERO25 View Post
                Do you think he was referring to resistance?
                That was my understanding of "rolls easier". Knowing that newer cars have different engine to rear end alignment, it makes sense.
                Modern Day Spec Wedge Racing

                Comment

                • TRocket8
                  Senior Member
                  • Jul 2007
                  • 397

                  #9
                  If you can afford an XR1, get one of them. They are already in production for 5 years. I switched to an XR1 last year and it was better than my Orange/blue-gray hybrid. The crossmember never dragged on the race track. No need to waste on an older car unless money is an issue

                  Comment

                  • dirtdobberrr
                    Junior Member
                    • Dec 2012
                    • 29

                    #10
                    "rolls easier"......to me it means that the load on the rf and the lr lets the car turn easier. This modern stuff seams to not be as tight on entry to the middle. This means that either the right front is softer, or has more travel.....or maybe the left rear shock has MUCH more rebound(slower lr load, think about it). Most will not reply to this. Some of them have paid for the setup......most of them do not yet fully understand the setup. If you are truly capable of watching a car, and truly capable of understanding what the car needs, then you could be your own chassis company. Free entry and being able to roll the middle of the turn are the key. If the car is tight from middle out...add rebound to the rr until the car is no longer too tight on exit. The last sentence is copied from Johnny the Jet Saathoff.

                    Comment

                    • Jking24
                      Senior Member
                      • Oct 2017
                      • 1512

                      #11
                      Originally posted by dirtdobberrr View Post
                      "rolls easier"......to me it means that the load on the rf and the lr lets the car turn easier. This modern stuff seams to not be as tight on entry to the middle. This means that either the right front is softer, or has more travel.....or maybe the left rear shock has MUCH more rebound(slower lr load, think about it). Most will not reply to this. Some of them have paid for the setup......most of them do not yet fully understand the setup. If you are truly capable of watching a car, and truly capable of understanding what the car needs, then you could be your own chassis company. Free entry and being able to roll the middle of the turn are the key. If the car is tight from middle out...add rebound to the rr until the car is no longer too tight on exit. The last sentence is copied from Johnny the Jet Saathoff.
                      Much of this post scares me. Less rf spring rate tightens entry, adding rr rebound generally tightens middle and exit

                      Comment

                      • ZERO25
                        Senior Member
                        • Aug 2018
                        • 5240

                        #12
                        Originally posted by TRocket8 View Post
                        If you can afford an XR1, get one of them. They are already in production for 5 years. I switched to an XR1 last year and it was better than my Orange/blue-gray hybrid. The crossmember never dragged on the race track. No need to waste on an older car unless money is an issue
                        What was better about the xr1?

                        Were racing for $600 weekly (crate), kinda hard to justify 20-30k for a roller!

                        Comment

                        • Jking24
                          Senior Member
                          • Oct 2017
                          • 1512

                          #13
                          You don't have to spend 20-30k on a xr1 good used cars can be had all day long for less than 20

                          Comment

                          • ZERO25
                            Senior Member
                            • Aug 2018
                            • 5240

                            #14
                            Originally posted by Jking24 View Post
                            You don't have to spend 20-30k on a xr1 good used cars can be had all day long for less than 20
                            Not in my area, very few xr1's. We looked for 6 months!

                            Comment

                            • 08racing
                              Junior Member
                              • Jul 2007
                              • 22

                              #15
                              Payout

                              Originally posted by ZERO25 View Post
                              What was better about the xr1?

                              Were racing for $600 weekly (crate), kinda hard to justify 20-30k for a roller!
                              Does anyone really count the weekly payout To justify your racing budget? Unless you’re winning series races on a weekly basis, the payout might cover your fuel and some of the tires you used... sorry, comparing payout to your budget for a car never made sense to me. We are all spending wayyyy more than we make in racing

                              Back to the topic, I’ve seen fast XR1’s and fast B/G Rockets here in PA. Setup and driver will make them both winners or losers

                              Comment

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