i have a 371 with a bb kit.I widend the intake, exhaust and opened the tranfurs. I checked the squish and it was .053". I took the bace gasket out and the new squish is .027". I raised the exhaust port to match for the squish. droping the squish droped the intake? the saw is torky as hell but it needs more rpm. how high should I go with the exhaust port for the gain and how long should the blowdown be? i still don't understand the blowdown. I know its the time between the exh opening and the trans opening but what does it mean in the skeem of things?My numbers are exh. opens at 98*
exh./duration 164*
trans. opens 130*
trans./duration 100*
blowdown 32*
any info on what to do next would be helpful thanks!!!!!
also i have moded the mufler.
exh./duration 164*
trans. opens 130*
trans./duration 100*
blowdown 32*
any info on what to do next would be helpful thanks!!!!!
also i have moded the mufler.