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Old January 5th, 2015, 14:50   #44
Veteran Member
Join Date: Dec 2013
Location: south dakota
TDI(s): 2011 Golf

Originally Posted by mishkaya View Post
Do you monitor EGT's? I would would be curious to know what the temps were prior to the hole and after. I know that on my ram when one of the 1/8" hoses popped of the upper intercooler hose, I had enough of a boost leak to see a 100 degree rise in EGT's under moderate boost conditions. Even more of an increase under high boost engine loads.
No, I don't have an egt gauge or vcds thing, and I haven't put any miles on the car out of town yet either.

Your higher EGT makes sense, you had the same fuel and less air. As I wrote, the hole I drilled was something like .05".

For comparison: A .05" hole has .0019 square inches.

A 1/8" hole is .0122 square inches, a 625% increase.

Even .05" probably is bigger than necessary, the drill I had wouldn't hold any smaller of a bit!
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