370Z Piston Slap

Joebarchuck

Hi guys,

My 370Z now has about 350 miles on it and I am hearing what I think is a piston slap noise when the car is going up hills especially when in neutral while waiting for the gate to open.

I am not 100% sure it is a piston slap problem but it sounds like it or similar to it. What else could it be?

That has me worried because I am scheduled for lots of changes tomorrow as I am driving to the Stillen shop in Costa Mesa. I would not want the Nissan Dealer to tell me it's because of the changes I made that it's happening even though it is happening before any changes.

Anyone has a clue about what the noise could be?

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Red 2010 370Z Roadster: Stillen G3, Stillen Exhaust, Up-Rev Tune (312 RWHP), Eibach Pro Springs, 20mm spacers front and back, Rear Camber Kit, Tinted Windows, GT-R Start Button, Interior Mods