The IMPBA D Class is from 0.301 thru 0.458 which is the 7.5 CC Class and the OS .46 VXM is 0.455 or 7.45. So yes it is legal in Sport 40.Hello,
I have been searching the forum, but have not find what I have been looking for. What are some good engines for the Sport 40 class? Is the OS .46 legal for the IMPBA class?
Thanks,
Tim
Tim, At our club we run Mac, Cmb hr & rs but the new AA and CMB Vac should be great also. Scroll down the sport and scale forum to see a video of Robs spt 40 with the AA motor. Parts from the AA motors will interchange with the Mac motors-Al Hobbs is the MAN!Hello,
I have been searching the forum, but have not find what I have been looking for. What are some good engines for the Sport 40 class? Is the OS .46 legal for the IMPBA class?
Thanks,
Tim
Al Hobbs is gonna be the guy responsible for keepin ol MAC motors ALIVE& runnin...as a Mac 45 owner, i VERY MUCH appreciate it Al! If i ever destroy my 45 Mac, i will be callin Al!Tim, At our club we run Mac, Cmb hr & rs but the new AA and CMB Vac should be great also. Scroll down the sport and scale forum to see a video of Robs spt 40 with the AA motor. Parts from the AA motors will interchange with the Mac motors-Al Hobbs is the MAN!Hello,
I have been searching the forum, but have not find what I have been looking for. What are some good engines for the Sport 40 class? Is the OS .46 legal for the IMPBA class?
Thanks,
Tim
Glenn
You won't .Al Hobbs is gonna be the guy responsible for keepin ol MAC motors ALIVE& runnin...as a Mac 45 owner, i VERY MUCH appreciate it Al! If i ever destroy my 45 Mac, i will be callin Al!Tim, At our club we run Mac, Cmb hr & rs but the new AA and CMB Vac should be great also. Scroll down the sport and scale forum to see a video of Robs spt 40 with the AA motor. Parts from the AA motors will interchange with the Mac motors-Al Hobbs is the MAN!Hello,
I have been searching the forum, but have not find what I have been looking for. What are some good engines for the Sport 40 class? Is the OS .46 legal for the IMPBA class?
Thanks,
Tim
Glenn
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