Scigheras

Looser, the valves will open later and close earlier.

s2000Junky

You want them loser. This gives them more duration time to be seated and thus cool through the combustion cycle.

RolanTHUNDER

Not looser than the recommended clearance though. Safe to run them on the tightest side of the spec for optimal performance. Only downside to that would be a more regular clearance check/adjustment thereafter but that will still be 10's of 1000's of miles later on.

F1TwoThousand

Makes sense. I vote for if turbod with oem valves keep exhaust valve on looser side of spec and intake valve on tighter side of spec. Not worth the risk of burning up a valve for that extra bit of exhaust efficiency. This should be a definite todo item on any turbo build especially.

Pinky

As well for anyone who is running an '06 and newer they would be wise to read up on running your exhaust valves at as loose as .012.

s2000Junky

Correct. My comment was made with keeping in context to the previous question.

RolanTHUNDER

Noted.

DrCaligari

This one from Amazon:

s2000Junky

Not the cheapest, but a lot cheaper then removing the head and a lot quicker. I think I paid $169 for one about 5-6 years ago that is almost worthless compared to the picture quality of this one

Pinky

I paid about $100 for something from Milwaukee in about 2012. IS useless compared to this.