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Message: [QUOTE="silverpsd_06, post: 95492, member: 1011"] You would have excessive backpressure issue with that setup junior and you gotta think if you did that your really not gaining anything besides a slight quicker spool your high pressure is not what limits you it the atmosphere (as in horsepower potential persay) because after you take your 4202 to the edge its dumping loads of hot air in and then having that hot air recompressed.. Its ineffecient thats why an 88mm or bigger with the properly matched exhaust side would work better. The whole idea is to keep both chargers inside their highest efficiency so your not overrunning one with the other on the exhaust side of things. Basically the 38r is there to spool lightning fast then go up to say 17-19 is what chucky had where the atmosphere starts to come online and take over where the high pressure left off you decide where to gate it at basically a smooth transition from high to atmosphere doing the work Using the 4202 is just defeating the purpose and causing you to spend an insane amount of coin in those huge gates, Im using two 46mm gates one on high dumping to the atmosphere and the atmosphere dumping to exhaust [/QUOTE]

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