Modding motors isn't as simple as taking a dremel tool to the internals....
What issues for a particular motor are you trying to fix? How do you know the "fixes" you are making are actually improving the performance? How much R&D did you do on a particular engine?
With regard to "pinching".... Do you maintain the sleeves taper?
When I started my Nitro Engine Modding and Service, I took a V-Spec to work where we "modeled" it on a super computer, worked with Fluid Dynamic Engineers to see how and where to make changes if necessary. After that I mod'ed the motor and gave it to a sponsored driver to test. We continued to make changes. I must have gone through half a dozen motors, till we got it where we wanted it...
And with sleeve equipment, we went with IMO is the best DIY pinch equipment from Rayaracing.com. Sure there was an initial cost in buying the equipment, but we've had excellent success with it...
I'm not dissing you, maybe just giving you something to compare your services to. I do wish you the best of luck!
Originally Posted by
22Racer
I have rebuilt quite a few motors for guys on the board here. I have slowly been modding motors too, mostly for myself and experimenting. I am confident now that I am ready to do it more for other racers.
As far as rebuilding a motor I take the motor apart and check it over, especially the rod and crank pin wear. I pull out the front bearing and pull the carb off and clean the block in a high pressure washer. If the front bearing is still good I clean and regrease or oil. On most motors I see they need a pinch, I have found a very effective method that works very well and keeps it very round. I have not found a size yet I couldn't pinch. I have even made plugs to fix a sleeve someone has tried to pinch themselves.
I use Tko bearings and I have had very good luck with using Go parts in Novarossi based engines. Especially the Go rod, it is very strong and is only $18.69.
If you have any questions you can post it on here or Pm me.
Rex