help....my sr is pulling timing during the day

[DawgMode]

wassup im having a issue with my motor....during tha day my car feels as if it is pulling timing(takes long to rev.....boost but feels like its going nowhere)but once tha sun goes down and tha temps lower a bit tha car seems to livin up again.....for example i was at tha tracks and tha car runs a avg 9.2 (1/8th mile) during tha day....but as soon as the sun falls it starts runnin avg 8.8's

anyone having this problem.....i think ill try to use my boys mines ecu and c wat happens

anyone else has any suggestions

[Blown240sx]

Colder air does give you hp... Maybe not .4 tenths worth. Is your car staying cool?

[DawgMode]

yea my car has no cooling problems

[Blown240sx]

May just be the colder air. I mean if your car isnt running hot I DOubt its cooling problems and you seem to have a Front Mount so it shouldnt be air cooling problems.

As I said before Cold Air helps with HP and a Front mount with colder air passing over it helps a lot.