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2G ring gaps too big?

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Cruciatus111

Proven Member
50
6
Oct 10, 2013
Honolulu, Hawaii
so I recently got my block back from the machine shop, and I checked my ring gap, and they are a lot larger than what it calls for in the Chilton manual? i'm using topline pistons with oem size NPR rings, so oem stuff, my goals are to run around 18-23ish psi on my 16g.

my ring gaps:
Cyl #1
ring #1: 0.016
ring #2:0.023

Cyl #2
ring #1: 0.016
ring #2: 0.023

cyl #3
ring #1: 0.017
ring #2: 0.024

cyl #4
ring #1: 0.015
ring #2: 0.022

the Chilton manual however calls for around 0.0098 - 0.0138 for the first ring, and around 0.0157 - 0.0217 for the second ring, and this is different from some places I've read that the second ring gap should be a lot smaller than the first ring? im probably going to file them all down to get get 0.018 for the first, and 0.024 for the second ring as this is what other people are running with similar setups to me, but is there really any disadvantage to having a ring gaps like these?
 
I'm running bigger gaps than that, and a bigger PtoW.

If you're looking for greater than stock power (read: heat) this is a good thing.

You want to match the tolerance for the application. If anything, my original plan was far more conservative than where I've wound up and they may be too tight now.

Built winter 2007-2008, using NPR pistons and rings. Been running 35r sized and larger turbos almost the entire time.

About 1500 miles this year alone with the HX52 at 30+ psi. Granted switching to E85 has helped I would wager.
 
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