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JK 4.5 chassis secrets


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#1 Dante

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Posted 21 April 2015 - 01:49 PM

We’re testing the new JK 4.5 chassis. I’ve got it flat as a pancake, the guide is set and that’s all I done. It as fast as my one piece stainless steel chassis, but no faster.

Help me go faster!

Thanks 


Dante Cantalini




#2 Matt Sheldon

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Posted 21 April 2015 - 02:06 PM

Play with bite bar thickness and shimming the bite bar. I personally start with .055 piano wire and go from there. The more chatter you can get out of the rear of a 4.5 the faster the car will be. Depending on the track you run on you may also play with adding weight which may be a starting reason why your 1 piecer still work reasonably well. 

 

I have 2 that I am going to start playing with in the next couple of weeks. 


Matt Sheldon


#3 James Grandi

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Posted 21 April 2015 - 02:31 PM

I'm not familiar with the new chassis, but based on my experiences with the older JK 4.5 Chassis ( cheetah 7 ), deburr all the edges in the areas where pans move and make contact with the center section. The more free everything is to move smoothly, the more predictable, consistent and faster the car is
James Grandi
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#4 Cap Henry

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Posted 21 April 2015 - 02:32 PM

are you running oval or roadcourse?



#5 Race O' Rama

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Posted 22 April 2015 - 01:20 AM

2 of my racers have built the new JK 4.5" 21 chassis and it is awesome you can drive deeper into a corner on an oval, I have one to build yet, but I drove one and it is awesome!!!!!!!!!!!!!


Karl Hoffheins

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#6 Dante

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Posted 22 April 2015 - 11:33 AM

Cap Henry

I'm running a road course.

Race O' Rama

I wish!


Dante Cantalini

#7 Cap Henry

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Posted 22 April 2015 - 12:42 PM

I only have experience with 4.5s on oval, so I'm no help LOL







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