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Message: [QUOTE="pog, post: 295768, member: 268"] so i am used to running the latest spartan 310 and am now running the gearhead race tune. i got some hwy driving done on this tune. these numbers are all based on driving 100km/h (62mph) on flat road and cruise on. reset my lie o meter, seems to be more accurate it is reading 18mpg vs 22 (actual is always between 14-16). gearhead tune holds about 1k more frp (roughly 87-8900) vs spartans (77-7900). i noticed i had to push the pedal a tad bit more to reach my cruising speed, spartan seems to have more low end grunt. boost was about the same (5-7psi). the VGTDC was between 70-77% completely different usually on the 310 it would be 38-44%. hammering into at at about 70mph i noticed it down shifted where the spartan would sometimes downshift in this area, now i do have a weak hpfp and it held 235-23900psi vs 20-22k psi. boost was 44psi/64eb. the spartan to me just seems more aggressive at all throttle positions where the race tune you gotta get into it to get it moving. i did notice the turbo whistle a lot more (not louder) while regular acceleration, maybe thats matt's success to keeping it clean. more air before fuel. the spartan would lock tc and go into 5th (47ish mph) at the same time where with the race locks tc at about 50mph and then 5th at 55-58mph. over all this is an excellent dd tune. i do love the all around power of the spartan. just something about the 310 that appeals to me more than the race tune, it could be the aggressiveness out of the hole. i could see myself going back to the spartan 310, but i will def be playing around with the race tune. cheers [/QUOTE]

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