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2013-14 Shelby GT500
Whipple's NEW 4.5L 275AX 07-2014 GT500 Supercharger
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<blockquote data-quote="tomshaze" data-source="post: 13642128" data-attributes="member: 124332"><p>Just got the 4.5 pulley yesterday and installed it got timing to 17 degrees and Went for the datalog in the morning today </p><p></p><p>Car feels a lot better driving like it did with the Tvs except no bucking just nice and powerful </p><p></p><p>I did a 3rd and 4th pulley and recorded everything </p><p></p><p></p><p>Psi starts at 15psi which a world of difference from the previous 10 psi starting point </p><p></p><p>So it starts there stabilizes and then rpms hits 5000 and it starts to rize hits a peak of exactly 18 psi at 6500 rpm</p><p></p><p>Looking at the datalog the car is safe </p><p></p><p>Max afr is 11.5 but it's tuned for lower </p><p></p><p>So I noticed at exactly 6000 rpm the afr starts to lean a little and I got .5 dee frees of knock</p><p></p><p>So my Bosch 72 lbs injectors start to max out when the blower hits 17 psi </p><p>Took the Tvs 21 lbs to do that but the Tvs was pitifully slow at 21 psi it was faster at 16psi</p><p></p><p>So there u go this Whipple needs minimum of 17psi to wake up </p><p></p><p>I'm thinking of getting bigger injectors injecting more meth keeping timing the same and going up a pound or 2 and adding a 148jlt and then the car will be maxed out with its stock short block </p><p></p><p>So far I love the Whipple I can say one thing though the car is the same speed as it was before between 3500 and 5500 rpm but them the Whipple starts to just blow the Tvs doors after that and I can't wait to see what it will pull like with 20 psi yea I think the internals will take it </p><p></p><p>Well that's all for now thanks a lot svt</p></blockquote><p></p>
[QUOTE="tomshaze, post: 13642128, member: 124332"] Just got the 4.5 pulley yesterday and installed it got timing to 17 degrees and Went for the datalog in the morning today Car feels a lot better driving like it did with the Tvs except no bucking just nice and powerful I did a 3rd and 4th pulley and recorded everything Psi starts at 15psi which a world of difference from the previous 10 psi starting point So it starts there stabilizes and then rpms hits 5000 and it starts to rize hits a peak of exactly 18 psi at 6500 rpm Looking at the datalog the car is safe Max afr is 11.5 but it's tuned for lower So I noticed at exactly 6000 rpm the afr starts to lean a little and I got .5 dee frees of knock So my Bosch 72 lbs injectors start to max out when the blower hits 17 psi Took the Tvs 21 lbs to do that but the Tvs was pitifully slow at 21 psi it was faster at 16psi So there u go this Whipple needs minimum of 17psi to wake up I'm thinking of getting bigger injectors injecting more meth keeping timing the same and going up a pound or 2 and adding a 148jlt and then the car will be maxed out with its stock short block So far I love the Whipple I can say one thing though the car is the same speed as it was before between 3500 and 5500 rpm but them the Whipple starts to just blow the Tvs doors after that and I can't wait to see what it will pull like with 20 psi yea I think the internals will take it Well that's all for now thanks a lot svt [/QUOTE]
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2013-14 Shelby GT500
Whipple's NEW 4.5L 275AX 07-2014 GT500 Supercharger
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