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1slow370 · 05-23-2014, 05:58 PM

I simplified it ****, more boost =more blow by meaning on a fi motor you want to run a wider second compresion ring gap, especially since the factory pistons have no accumulator groove between the rings. The motor comes stock with the second ring running a tighter gap than the first ring which leads to flutter on a boosted engine since there is more blow by

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05-23-2014, 05:58 PM	#38 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	I simplified it **, more boost =more blow by meaning on a fi motor you want to run a wider second compresion ring gap, especially since the factory pistons have no accumulator groove between the rings. The motor comes stock with the second ring running a tighter gap than the first ring which leads to flutter on a boosted engine since there is more blow by Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST** Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50