2025 Revoslot SCCA B Sedan – Road Track

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    • #19860
      Avatar photoBellator
      Keymaster

      Final set of rules posted on the home page.

      • This topic was modified 1 month, 3 weeks ago by Avatar photoBellator.
      • This topic was modified 1 month, 1 week ago by Austin Slot Car Club LogoASCC Administrator.
      • This topic was modified 1 month ago by Avatar photoporsche917.
      • This topic was modified 1 month ago by Avatar photoporsche917.
      • This topic was modified 1 week, 3 days ago by Avatar photoporsche917.
      • This topic was modified 1 week, 3 days ago by Avatar photoporsche917.
    • #19907
      Avatar photoDatto
      Participant

      This is all very academic at this point, but I would like to look into the possibility of re-bodying the chassis PROVIDED the new (printed) body A: contains all the detail elements of the Revo (driver, roll-cage, glazing, etc) B: The donor chassis is not cut or altered in any way. C: The replacement body weighs no less than the body it is replacing.

      At this point I don’t know if it is feasible, but it would be cool to see some Pintos and Gremlins out on the track 🙂

      • #19908
        Avatar photoRadial TA
        Participant

        Per 1969 SCCA rules, the B Sedan class has a engine capacity limit of 2000 cc.  So the Pinto raced and the Gremlin was too big displacement, just like my Corvair.  I attended the SCCA B Sedan races that included the A Sedan cars also.  NO Gremlins until the later BFG series in IMSA.  I have thought about using a RevoSlot chassis for a non-RS body.  The C Production Porsche 911’s got added to Sedans by 1969 to satisfy Porsche since Alfa Romeo had jumped from the Production classes.  I’m surprised RevoSlot has not added Porsche 911.  John has a Porsche 911 that was the SCCA champion.

      • #19910
        Avatar photoDatto
        Participant

        So maybe a pinto? Grind off the big bumpers?

        Attachments:
    • #19909
      Avatar photoRadial TA
      Participant

      Final set of rules posted on the home page.

      • This reply was modified 1 week, 3 days ago by Avatar photoporsche917.
    • #19913
      Avatar photoporsche917
      Moderator

      I will be running one of these two cars.  

      Marty

      • This reply was modified 1 week, 3 days ago by Avatar photoporsche917.
    • #19944
      Avatar photoRadial TA
      Participant

      Two problems have been identified on the RevoSlot cars.

      1. The Alfa Romeo motor shaft sticks beyond the pinion far enough to rub the rear wheel and tire.  Therefor we will allow the motor shaft to be ground or cut off at the pinion.

      2. The Datsun 510 has a manufacture error on the motor bracket causing loose or misaligned motor.  A cure for this has not been identified.  More information will be included in the rules.

      Another issue is the voltage for the race.  Due to dusty track the 12 volt test seems to be causing wheel spin around the course.  Another test will be run at the Dec. 21 meeting on the clean track.

      Randy

    • #19945
      Avatar photoButch
      Participant

      I ran both Revo’s Saturday on a clean track at 12 volts and couldn’t break 4’s got better at 12.6   I would recommend 12.6

    • #19948
      Avatar photoStabnSteer
      Participant

      Agree here with David – running at 12 was almost sleep-inducing the car was so compliant, and that was with old, hard tires. 12.5 was a bit more interesting and I was able to de-slot if I wasn’t paying attention. 12.6 we didn’t do, but the bottom line is that 12 is what I’d set things at for a kid who is just starting-out.

      Anyone have the tire number for “Stock Revo Slot Tires?” Need to put in an order since I’m pretty sure I ran old slot-it 30’s on that car for the rally. No clue where my stock tires ended up.

    • #19951
      Avatar photoButch
      Participant

      RS 217   30 shore  if that’s all you need I have a pair I’ll give you

    • #19952
      Avatar photoMel
      Participant

      I’m in agreement with running at higher voltage. Do we have a weight limit? I can’t find it in the rules.

    • #19953
      Avatar photoporsche917
      Moderator

      All,

      I would keep the voltage at 12 volts.  All we need to do is use different spurs and/or pinions as allowed by the rules.

      Here is what the different gearing looks like running at 12 volts.

      stock – 9t pinion with a 24t spur = 7,875 calculated wheel RPM

      option 1 – 9t pinion with a 23t spur = 8,217 calculated wheel RPM

      option 2 – 10t pinion with a 24t spur = 8,750 calculated wheel RPM

      option 3 – 10t pinion with a 23t spur = 9,130 calculated wheel RPM

      option 4 – 12t pinion with a 26t spur = 9,692 calculated wheel RPM

      As a point of reference, I typically run all of my well handling cars with a calculated wheel RPM of 9,100 to 9,400.

      See, no need to change the voltage to anything other than 12 volts.  Everyone just needs to find the gearing that works best for their skill level.  Run the gears that you can run to achieve the best results.  More is not always better.  Better is having a car that is drivable and stays in the slot.

       

       

    • #19955
      Avatar photoKim
      Participant

      Here’s my ride.

    • #19999
      Avatar photoporsche917
      Moderator

      Love that Paul Newman car.  It can be seen in the movie Winning: The Racing Life of Paul Newman.  Great movie.

      This should be a competitive series.

    • #20000
      Avatar photoporsche917
      Moderator

      Just as a heads up.  All of the crowns and spur gears I mentioned earlier are currently available from Alan at 132slotcars and from Pendleslot.

      • This reply was modified 2 weeks, 3 days ago by Avatar photoporsche917.
    • #20004
      Avatar photoRadial TA
      Participant

      https://132slotcar.us/revoslot-1-32-scale-slot-car-spare-parts/page-7

      This is a website location on 132slotcars buried in the RevoSlot header, sub header RevoSlot Parts with the gears.

      Depending on the first race I may change my gearing to reduce the rpm.  I have found that completing laps is more valuable that fastest lap.

      Let’s meet after the first race.

      Randy, manager of B Sedan

    • #20005
      Avatar photoporsche917
      Moderator

      OK – it’s time to make a decision on voltage.  This will impact how everyone will set up their car.

      I still say sticking with 12 volts is the way to go.  Simply put, this will allow the stock gearing to work best for new racers and those that have more difficulty keeping their car in the slot while the rules will allow those with more experience to change the gearing on their car to match the level of their driving and car preparation.

      Let’s have this sorted out sooner rather than later because it will also impact the Toyota GT1 race.

       

      • #20026
        Avatar photoBellator
        Keymaster

        I am truing tires today and plan to go down to the club to test voltages for the Toyota with stock gearing and body float tomorrow or Friday.  I have a provisional 12.5v in the rules right now, but that may change depending on my testing.

        In my opinion, the Toyotas should run quicker than the SCCA Sedans, they were, after all, in the top classes (GT1 followed by LMGTP prototypes) at Le Mans.  The end-goal I’m after is to have two different styles of racing, appropriate to the cars on the track.

    • #20025
      Avatar photoRadial TA
      Participant

      Since I could not navigate the 132 website to the gear selections, I went with the December Party test and the separate individual tests which showed the stock gears to be slugs below 12.6 V.  (I assume none of the 4 cars had modified the gear selection.)

      I respect your wisdom on this subject.  I need major change of direction supported by the members who tested at the December meeting.

      Randy

       

    • #20027
      Avatar photoDatto
      Participant

      Again about fasteners. The rules state:

      All chassis screws must be stock and be in place at the start of every race.

      Body screws can be either the stock screws or the brass replacement screws (RS-213b).

      As i have mentioned, i have gotten a 510 with badly stamped motor pod screws. Why can’t I use fasteners from my parts bins if they are the same size/thread? Seems am odd thing to be anal about.

      • This reply was modified 1 week, 6 days ago by Avatar photoDatto.
      • #20058
        Avatar photoBellator
        Keymaster

        Marc, those are just the body post to body plate screws being called out.  Not the screws holding the motor pod or body plate to chassis plate.

    • #20059
      Avatar photoDatto
      Participant

      As far as body screws, though, the stock screws are just M2 Phillips, right? The brass, I’m guessing, is slotted. So, no hex or torx? I don’t see the rationale.

    • #20060
      Avatar photoporsche917
      Moderator

      Marc,

      All spec series are designed to make setting up the car as easy as possible and therefore calls for stock parts to be used.  This makes it easier for someone new to the series to know exactly what parts are to be used so they can set up their car equally to the other racers.  If all screws were allowed and someone found a screw that had a smooth section on it that had an advantage to the fully threaded screw then there might be an advantage.  This is the case with just about any larger or national series I am aware of.  People tend to interpret the rules their way to find as Mark Donahue put it “an unfair advantage”.  I am not saying you are specifically looking for an advantage but I want everyone to understand the reason for the rules.  It’s also much easier for a series manager to scrutineer the cars when they are all using the same parts.

    • #20073
      Avatar photoDatto
      Participant

      OTOH, if the carpet monster eats a body screw, that sends me to Alan at scale racing.com ti order a replacement which may or may not show up in time for the race, while i have virtually identical screws, save the drive style in my kit.

      AS far as the unfair advantage goes. A spec race really ought to have spec controllers if it is to have any meaning. Perhaps spec races should specify the use of the club controllers to level the playing field.

    • #20074
      Avatar photoRadial TA
      Participant

      Please use the screw with the closest configuration that you have with any slot, hex, torq.  I will not DQ you, (just don’t beat me).

      • This reply was modified 1 week, 2 days ago by Avatar photoRadial TA.
    • #20076
      Avatar photoporsche917
      Moderator

      Marc,

      Don’t discount the inventory of the club.  Many members, myself included, have loads of spare parts for instances just like the one you described.  Best to post what you are looking for and I bet you will find it.  As they said in Harry Potter – “Help will always be given to those that ask”.

    • #20078
      Avatar photoButch
      Participant

      I thought that was the Beatles

    • #20079
      Avatar photoRadial TA
      Participant

      Jagger/Richards

      You can’t always get what you want
      But if you try sometimes
      Well, you just might find
      You get what you need

    • #20080
      Avatar photoDatto
      Participant

      I want to apologize gor being grumpy. Kinda stressful these days, should not have vented here.

      • #20081
        Avatar photoRadial TA
        Participant

        I have wondered about the controller disparity also.  If I used my controller finger correctly it would help probably.  I hope you can get here Saturday.

    • #20105
      Avatar photoRadial TA
      Participant

      I am also sending an email on this topic.

      I expect numerous changes to cars when new parts arrive and are installed before the next race.

      Which tires were you using for the first race?  Brand should be RevoSlot or urethane, and which hardness from 22-35.

      We could see rubber pebbles on the track in every lane and the cars were vibrating from pebbles stuck to tires.

      Does anyone have a suggestion for tires that are commonly available which do not “shed”?

      Randy Radial TA

       

    • #20106
      Avatar photoKim
      Participant

      I ordered Paul Gage shore 20’s hope yo get them in time to true for next race.

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