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Effect of Restrictor Plate and Extra Weight in NA 1.8 and NB

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  • PipPipPip
  • 68 posts
  • Location:United States
  • Region:California
  • Car Year:1990
  • Car Number:38

Just wondering how much effect the use of the restrictor plate and added weight in the NA1.8 and NB has on lap times.  I realize there are a lot of variables related to the track, but just want to get a rough idea.  


Asked another way, if I remove the restrictor plate and run at the minimum weight that either of those cars could achieve and still be SM legal, how much would my lap times improve.  


I am asking, because I would like to have a dual duty car for SM and LDRL/Champ enduros.  I already have a 1.6 and RX7, but would like to get down to one car.

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