A quick 6.5NA cooling update test today being the first 35D+ in Victoria for some six months now. Our severe hilly highway test strip out of the valley was seeing well over 100D last season and today couldn't break 95D (not towing or loaded/ute). Only 2 x setup differences since last seasons mods. 1st being AC Delco TS's that showed great stability over warm high headwind winter runs to SA. 2nd being the recent test removal of the bar/lights/winch that came with it at purchase a few years back. Swapped our factory alloy bar onto it and ran some 10-15% cooler than known before.

Pic below was its original bar & kit now on our family wagon. The family rig doesn't have a real temp gauge yet but is today running the same hill at 3/4 instead of its usual 2/3rds tops!

It is all very logical stuff I know but really needed to see the difference myself before saving/spending too much on next bullet proof hopeful steps!
Cheers
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