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2018 xtx sidewinder cannot get past 8000 rpm

uofm

Expert
Joined
Jan 8, 2005
Messages
275
Location
Tawas City, Mi
TD 270 tune, Dalton qa 70 weights. Stock springs. Weights are empty. Cannot get over 8000 rpm. Feels like a regular motor with no turbo. First time out with this set up. It started out hitting 8900 rpm yesterday, and throughout the past day and a half I have been losing rpm. Any idea's what could be causing this? When I get back to the cabin I will check the turbo hoses.
 

On top of looking for boost leaks, check your air filter to see if its plugged with snow or oil. Hopefully its something simple.
I am surprised it hasn't thrown a code.
Did you check to see how much boost its making?
 


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