os 60 FSR
06-16-2006, 07:09 PM
#2
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RE: os 60 FSR
Frank, try an APC 11x7 and tach it again - you'll get a more valid comparison with the many other .60 readings guys have reported with the APC 11x7.
If you get mid to high 12s with an APC 11x7, you're in the .60 performance ballpark.
If you get mid to high 12s with an APC 11x7, you're in the .60 performance ballpark.
07-31-2010, 08:54 PM
#3
RE: os 60 FSR
OS 61FSR Special Edition (gold head) 14200 tuned to fly on 5th tank of fuel 15% nitro Jett sport muffler 11x7 apc broken in using Dar Zeelons method
not bad for a late 70s early 80s motor
Edit this was tached in the shade....will tach it again at field in sunlight to get another comparison
not bad for a late 70s early 80s motor
Edit this was tached in the shade....will tach it again at field in sunlight to get another comparison
