Zfr 7163

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Jan 3, 2017 | 03:44 PM

#51

KMO43

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Joined: 01-21-12

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From: Calgary

It's an aluminum center section

Jan 3, 2017 | 04:22 PM

#52

ECaulk

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From: Houston, Texas

Quote:

Originally Posted by KMO43

Tuned by me. No I did not change spool. Remember guys they use the same housing. With the 71 being bigger and requiring more machining than the 67 what is the final exhaust A/R

So the A/R on the 71 is smaller than the 67, so we're not comparing apples to apples. The smaller A/R should be choking the 71 up top more than what it's capable of.