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Post by dave632 on Jan 25, 2022 10:48:12 GMT -7
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Post by crazynski on Jan 25, 2022 12:19:09 GMT -7
Dave, Great thread! Thanks for the bump. Might there also be a "shunts for beginners like Crazynski" thread?  |
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Post by dave632 on Jan 25, 2022 13:04:34 GMT -7
I will do a shunt tutorial but I have rarely seen much improvement when adding shunts. Still it makes some electrical sense to add them if the rules allow.
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Post by crazynski on Jan 25, 2022 21:00:35 GMT -7
Thank you very kindly, Sir. Much appreciated.
A mechanic was asked to make a race car 10% faster. He said that he couldn't do it. But, he might be able to give them an extra 1%... ten times. A little here and there.
Shunts are just another part of the learning curve for me.
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Post by dave632 on Jan 27, 2022 9:19:49 GMT -7
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Post by nosubfor3 on Jan 27, 2022 9:33:06 GMT -7
I kinda agree with Dave. Shunts didn't imprve performace much if at all on my builds. I have two PSO cars built exactly the same with the exception one has shunts. They are pretty much the same in performance. An old racer one told me shunts are ony good to hold the pick up shoes to the chassis so they don't go flying off into the abiss with the shoe springs during a crash.
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Post by crazynski on Jan 27, 2022 9:34:30 GMT -7
Dave,
Thanks a million!!!
Cheers,
Ken
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Post by jjwallace on Jan 28, 2022 7:40:34 GMT -7
Another perspective here is consistency in the electrical path. Without shunts the electrical path is through the pick up hinge and spring which can "potentially" change as the car goes down the track or as it gets dirty. The shunt makes a positive connection that doesn't change. It just removes that as a concern. We are dealing with .0001 timing increments after all. Sometimes that is literally the difference in a race. I install shunts every time they are allowed. Just my two cents.....
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Post by ecbill on Jan 28, 2022 7:54:23 GMT -7
A good example of what Jeff is talking about is Jag’s DR1 chassis’’s. They seem to have a poor ( or at least inconsistent ) connection between the shoes and brush holder. I can’t get those things to run descent without shunts. Those cars only get run in classes that permits shunts.
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