Update on gas milage after Underdrive Pulley install!
First full tank after the underdrive pulley install... noticed literally a 40-50km extra per tank increase.
Used to get 270-280 km per tank.. yes ver very very ****ty i know... still need to recalibrate my speedo its prolly a bit off, and im sure i got other problems with the damn truck.. but ran it down to empty today and the trip gauge read just over 320 Kms to that tank.
Havnt driven the truck any less hard then i usually do
Guess these things help a bit... figured 4 months its basically paid for itself if my truck keeps up this mileage.
One problem im noticing tho... i THINK the belt is slipping a bit now after the install. didnt do it for first few days but now under heavy acceleration sounds like a turbo spooling up lol definately think its the belt... but who would it go so early its brand new. And apparently these trucks have automatic tensioners or something?
DOUBLE LIFTED and PREKEYD, 17x9 Eagle Alloy 197's, 35x12.5 Hankook Dynapro's, black headlights, 3" flowmaster exhaust, UD Pulley, K&N, JBA Headers, Motive 4.56 gears, Superchips Flashpaq Performance tuned, FOX shocks, Pioneer sound and much more.