Just wanted to share something I did over the last year and a half or so. I'm a big F1 fan so when the F201 came out I was stoked. And I was hoping this would be the beginning of new era of F1 rc cars, hop ups, line extensions, etc. Of course we all know what happened there. It started dying a slow death! I was dissapointed, because the touring car kits where getting all the cool stuff. And just like real F1, the cars have to get better, improve, evolve. So after some early experimentation, converting a 414 to fit F201 bodies, I decided to give myself a project: convert a TB EVO4 to fit F201 bodies and tires. So first I did some experimentation to see how I could make the F1 tires, that have a smaller diameter than touring wheels, fit the uprights. With some help from a dremel and some machining I got that to work.
As you can see this has touring car wheelbase, and won't fit an F201 body. So I had to go into CAD, build all the Tamiya OEM parts and some custom ones to stretch the wheelbase by 10mm. Make sure everything fits, with a low enough profile to fit the F210 body.
So I sent the new bottom and top carbon plate CAD drawings to Penguin RC and they cut a set for me. I machined some custom parts out of aluminum and put it together.
I put the servo in front (a trick I copied from a former co-worker of mine, formula 1 is all about taking the best from the competition!). It worked okay, but steering was just not as tight as I would have liked it. And it did make the servo more vulnerable. I must have tried 4 different front suspension set-ups. Also I tried for the longest time to make the EVO 4 A-arms work in front. But the modified uprights just didn't gel with the F1 wheels. So I decided to go back to the F201 uprights and make my own aluminum lower A-arm that fit the EVO4 chassis but alos fit the F201 upright. This seems to be the best solution.
I also went with a mini servo, as a regular servo is just too big to fit with an F1 body. The current front upper I-arms are a weak point in aluminum, so ideally I would like to make those better (like proper A-arms). But sadly not a lot of people run f1 rc anymore, and no way this car will make into any Tamiya sanctioned event! Also I was dissapointed when KO PROPO didn't have an F1 class anymore, where one could run something more experimental, with LiPo batteries. If you are interseted in seeing more pictures, let me know.