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U.S. Vintage Trans-Am Racing Part 2

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U.S. Vintage Trans-Am Racing Part 2

Old 01-10-2022, 07:49 AM
  #14941  
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If they aren't going to have a specific motor rule, I think there should at least be a short list of recommend motors for new racers. My buddy and I were burned early on thinking they were all going to be equal. I can tell you a Reedy Sonic M3 or a HW Just Stock don't come close to a REVTech.
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Old 01-10-2022, 08:25 AM
  #14942  
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Originally Posted by mrreet2001 View Post
If they aren't going to have a specific motor rule, I think there should at least be a short list of recommend motors for new racers. My buddy and I were burned early on thinking they were all going to be equal. I can tell you a Reedy Sonic M3 or a HW Just Stock don't come close to a REVTech.
That sounds like a decent idea.
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Old 01-11-2022, 06:58 PM
  #14943  
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hi... plenty of healthy conversation here lately...

and from my testing and running most of the current 25.5's are all on pace with each other...different FDR and timing makes it so. Example my Reedy Splus at 42 degrees likes 3.6 FDR, where the Trinity likes 4.1 FDR at 50 degrees.... find your sweet spot for your motor and enjoy.

and at most of the USVTA events, the field of motors is a who who's.... the driver and setup makes the podium, not the motor
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Old 01-11-2022, 07:18 PM
  #14944  
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Originally Posted by DARKSIDE View Post
hi... plenty of healthy conversation here lately...

and from my testing and running most of the current 25.5's are all on pace with each other...different FDR and timing makes it so. Example my Reedy Splus at 42 degrees likes 3.6 FDR, where the Trinity likes 4.1 FDR at 50 degrees.... find your sweet spot for your motor and enjoy.

and at most of the USVTA events, the field of motors is a who who's.... the driver and setup makes the podium, not the motor
Driver, Set up, Practice, Driver, Set up, Practice. The Standards do not change.
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Old 01-12-2022, 06:25 AM
  #14945  
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Originally Posted by DARKSIDE View Post
... and from my testing and running most of the current 25.5's are all on pace with each other...
While I agree with you, there is no list defining "Current". If you go by ROAR approval date you run into this issue:
  • Hobbywing NA Justock G2.1: February 8, 2018
  • Trincorp Revtech X-Factor: October 5, 2018
  • Reedy Sonic 540 M3: March 16, 2017
Two of these motors are trash but have similar dates. The RevTech is over 3 years old but still a top tier motor.
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Old 01-12-2022, 02:39 PM
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Originally Posted by mrreet2001 View Post
While I agree with you, there is no list defining "Current". If you go by ROAR approval date you run into this issue:
  • Hobbywing NA Justock G2.1: February 8, 2018
  • Trincorp Revtech X-Factor: October 5, 2018
  • Reedy Sonic 540 M3: March 16, 2017
Two of these motors are trash but have similar dates. The RevTech is over 3 years old but still a top tier motor.
Ive run all 3 of them and raced against all three...I dont see how any of them are "trash"
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Old 01-13-2022, 08:01 PM
  #14947  
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Speaking of motors, I can't seem to locate any verbiage. Are aluminum or titanium motor screws allowed?
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Old 01-14-2022, 11:37 AM
  #14948  
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Need some help here. I am going to run some VTA this weekend and have noticed recently when practicing that the rear end of the car wants to come around into a spin.

I am running a 3Racing Advance S. Has front spool, rear diff, stock shocks, Novak 25.5T motor. Gearing is a 75/39 for an FDR of 3.65. Car is ok on the straights, the corners are another story. Any tips and/or advice is greatly appreciated. Thank You all.
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Old 01-14-2022, 12:05 PM
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Originally Posted by jammin684 View Post
Need some help here. I am going to run some VTA this weekend and have noticed recently when practicing that the rear end of the car wants to come around into a spin.

I am running a 3Racing Advance S. Has front spool, rear diff, stock shocks, Novak 25.5T motor. Gearing is a 75/39 for an FDR of 3.65. Car is ok on the straights, the corners are another story. Any tips and/or advice is greatly appreciated. Thank You all.
Multiple factors influence corner handling. What surface are you racing on and what's the grip level? What are your suspension settings? Where in the corner is your car spinning? The beginning, middle, or end? Are you using HPI or Protoform tires?
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Old 01-14-2022, 12:32 PM
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Originally Posted by Soul Surfer View Post
Multiple factors influence corner handling. What surface are you racing on and what's the grip level? What are your suspension settings? Where in the corner is your car spinning? The beginning, middle, or end? Are you using HPI or Protoform tires?
Asphalt surface with good grip. Spins on entry usually. Protoform tires with Paragon sauce. Have not tinkered with shock settings.
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Old 01-14-2022, 02:22 PM
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Originally Posted by WhiteLX View Post
Speaking of motors, I can't seem to locate any verbiage. Are aluminum or titanium motor screws allowed?
Since some of the approved motors come with aluminum screws, I would conclude that they are legal.
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Old 01-14-2022, 04:02 PM
  #14952  
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Originally Posted by jammin684 View Post
Asphalt surface with good grip. Spins on entry usually. Protoform tires with Paragon sauce. Have not tinkered with shock settings.
Since you're running PF tires, they could be a big factor. I've always been told by experienced VTA racers that PF tires are good for carpet, but not for asphalt. HPI tires should perform better. The poll at the top of this thread should say it all.

Also, what are your toe and camber settings? What's your ride height, droop and spring rates?
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Old 01-14-2022, 04:51 PM
  #14953  
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Originally Posted by Soul Surfer View Post
Since you're running PF tires, they could be a big factor. I've always been told by experienced VTA racers that PF tires are good for carpet, but not for asphalt. HPI tires should perform better. The poll at the top of this thread should say it all.

Also, what are your toe and camber settings? What's your ride height, droop and spring rates?
Will check things you mentioned. Camber I believe is a -1.0. will check other settings in my manual tonight. Thankyou for your help and your interest in my problem with the car.
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Old 01-14-2022, 05:16 PM
  #14954  
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Originally Posted by jammin684 View Post
Will check things you mentioned. Camber I believe is a -1.0. will check other settings in my manual tonight. Thankyou for your help and your interest in my problem with the car.
No problem at all.

Increasing your negative camber might help. A good starting point is -2 degrees. After you set it at -2 tilt your car left and right while it's still on the setup station to simulate chassis roll while cornering and check it again. You should still have some negative camber when the car is leaned over.
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Old 01-14-2022, 05:31 PM
  #14955  
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I just finished fixing this issue recently. The biggest difference was less rear droop. I also softened front shocks so the initial entry is softer. I reduced my D/R as well. Those made the car easier to enter corners without swapping ends. Now it's at the point that I might want more steering.
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