nsw/act Brand new RB26 Bare Cylinder Head
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By Looney_Head · Posted
did you go to the us gtr festival? any progress on getting the car back out and running? -
I had some time over the last week and decided to test if block filler will hold the blocks shape similar to a torque plate after the head has been removed. 1, 3 and 5 were measured at 9 points each before and after. MY goal was to see how much impact a torque plate has on the shape of the bore. The first set of measurements were taken with the main girdle and head off with no filler. The block was then filled with grout up to the water pump (half fill) and the girdle and head were torqued to spec. The block sat leveled for 7 days and was disassembled. The second set of measurements were then taken. Results are presented as the delta between the original and new value. All values in the PowerPoint are presented in inches because America. The largest changes were 0.0035 in or 0.0889 mm between cylinders 3 and 5. There may have been even greater changes if the block was filled to the top with grout. I hope this information is useful and I'm curious to hear what you guys think. Notes: My block had the most wear in cylinders 3 and 4. Due to the amount of change in 3, I measured 2, 4 and 6 separately. 4 was also all over the place. 6 was similar to 1. They were not included to keep the test objective. -
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I also find it hilarious, everyone thinks chop idle tunes sound cool, and they do... Because they sound like an angry rotary engine idling. -
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