I would like to know if my gap ring is right for boosted application

90.5mm bore

first ring .018"
second .020"



Location: Montreal, Quebec

I forget

It .005" per inch for the first
and .0055" for the second



Location: Montreal, Quebec

I always thought the first ring had a bigger gap and the second ring got a tighter gap. Reason being is the 1st ring sees all the heat and the 2nd ring sees less heat.

Also gap is dependent on what you plan with the motor.

Top ring is tighter.

Stock top ring is .006-.012
Stock second ring is .0098-.016

Check your paper work for your pistons. Each manufacturer is a little different but I think the .005 first and .0055 is a pretty good rule of thumb for a boosted application.







"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"

I use the spec that wiseco give me for

Street-Moderate Turbo / Nitrous : top ring .0050” 2nd .0055”

I ask only to compare



Location: Montreal, Quebec