soo my brank new frame of last year last only this summer... did about 20-25 day of track and racing and its cracked again.. ill have it weld but does any of you have put reinforcement that lasted?
Make sure you are installing your engine mounting adjuster nuts correctly. If the frame is pinched together or spread apart too much (due to the adjuster nuts), it will put stress on the spars and cause them to crack. Cast aluminum is brittle. If you are interested, you can also have the frame x-rayed, then decide if its good enough to use.