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Any FCR tips?


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#1 Troy Beeler

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Posted 06 April 2021 - 08:36 AM

I have ran a handful of FCR races now and have really enjoyed them.

 

And thanks to Roger for bringing back the great chassis GRC. Hopefully more and more tracks will be racing them again.

 

I am asking as much for myself as I am for the new guys that have never run them before. So what do you know or suggest? The one thing I have done is not soldered my front bushings in and just let them float. I was told this helped the chassis move around better.

 

Thanks.






#2 chasbeeman

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Posted 09 April 2021 - 04:33 PM

Following cause I need advice too!
Charles Beeman

#3 Bill from NH

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Posted 09 April 2021 - 06:09 PM

Troy & Charles, are you guys running the 4" or 4 1/2" chassis?  What type of bodies will you be using? Will they be clear vacuum-formed ones or hard bodies? What motors will your tracks allow you to run? Will your tracks allow any chassis modifications to be made? Are there minimum tire diameters you must use?


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#4 NSwanberg

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Posted 10 April 2021 - 12:46 AM

Lead!


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#5 John Luongo

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Posted 10 April 2021 - 06:20 AM

gotta love that fcr chassis! 4.5" hardshell nascar racing on an oval. add lead and turn left!



#6 911GT3

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Posted 10 April 2021 - 08:09 AM

Keep the axles parallel to each other and the track.  The axles should slide through the bushings easily. Add lead, don't add lead, whatever works for your driving style.  If bracing is allowed, brace the uprights.  Body positioning helps (play around with it).


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Eric Balicki

 


#7 Troy Beeler

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Posted 10 April 2021 - 11:35 PM

For now we are running the 4.5 on a King track at Pit Pass. Retro Eagle motor. With a 9x28 gear rule. Lexan truck bodies JK. For now everyone is running a wide variety of tires. I am running Pro Track fronts 13/16. And either Alpha or JK rears. At .850. As soon as Roger gets More of the Hoosier spec. tire in We are going to switch them. I do have a FCR jig that I set them up in.   



#8 Bill from NH

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Posted 11 April 2021 - 05:53 PM

Your FCR (a Precision?) jig should allow you to get that chassis near flat & straight, as well as the axles level  & square. If you're using the square offset axle bushings, you want to set chassis to be as low as possible. In the past some racers have ran 3/32" front axles in 1/8" bushings. I've not tried that.  If it was legal to modify the chassis uprights, I'd mention how to set chassis clearance tp 1/16". It sounds like you're having fun running Roger's new cars.


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#9 John Luongo

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Posted 11 April 2021 - 07:15 PM

i remember experimenting with fcr chassis set ups, esp for oval racing. i ran square 1/8 axel bushings but would adjust the front end "stagger" by filing the upper flat of the bushing a few thosnts for movement in the bank. another time i made the rf upright adjustable with a set screw. also played with a leaf spring front end...

too much time on my hands. one place we raced 4.5 nascar .040 thick bodies. one guy had his body mounted with so much off set and inside angle that his drivers side roof panel could hit your car when he passed you. lots of fun!

 

now, if i can find a 4.5" 1974 dodge monaco...







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