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2011-2014 Mustangs
Power-Adders
Whipple 2.9 power seems "inconsistent" and lackluster
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<blockquote data-quote="fishpick" data-source="post: 15590359" data-attributes="member: 182347"><p>FWIW - I called the local place I'm gonna dyno the car on to get their thoughts to see if they thought I was bat$#1t or what... they said "they have seen this kit slip silently" - so I took them at face value and tightened the belt at lunch. The manual says to have it 70-80% of the tensioner - and yes - their tensioner looks like an OEM one - I'd say from when I first did the install to now things have loosened to maybe 60% of travel... so it was, perhaps a little loose, but not sloppy by any accounts. So now it's at 80%.</p><p></p><p>I was gonna datalog a trip at lunch too - but had "windows update" issues... and said screw it. I did drive the car. And I found some safe spots to do a few WOT hits.</p><p></p><p>I can't say as tightening the belt helped some or not.</p><p>I can say with 100% certainty there's "something" not optimal with the tune / or hardware... </p><p></p><p>From a 20mph roll, in 3rd (but in "D"), I hammered it WOT - and the car totally "surges"- almost "bucking", I know it's a Mustang but <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p>Thing is - I repeated that in 3rd (in "S" mode) so it doesn't think about shifting - it just pulled strong, gauge looks like about 9psi, cool "Whipple" sound.</p><p></p><p>Now - that was the order - so tonight I'm gonna try the opposite - first WOT pull locked in 3rd, second WOT from 3rd in "D"... and hopefully have a log for those... if windows ever stops updating...</p><p></p><p>Given that lone datapoint - in my mind I am going back to the tune itself... the car is a 2012, the PCM is running 2014 software... which makes the transmission select-a-shift... I'm betting part of this is the tune itself is pure 2012 logic or something... dunno enough to know if that makes sense or not - but either way, even without a hard, weird, surgey pull, the shift points are retarded compared to the VMP 93 tune I used to have. </p><p></p><p>I probably will pull the TB to see if the actuator is open or closed at rest... just because... I'm stupid.</p><p></p><p>I am learning how different a boosted engine is vs NA in this process... I think some of my "less than full" boost numbers are obviously from a less than fully open TB... so - ok - learning.</p></blockquote><p></p>
[QUOTE="fishpick, post: 15590359, member: 182347"] FWIW - I called the local place I'm gonna dyno the car on to get their thoughts to see if they thought I was bat$#1t or what... they said "they have seen this kit slip silently" - so I took them at face value and tightened the belt at lunch. The manual says to have it 70-80% of the tensioner - and yes - their tensioner looks like an OEM one - I'd say from when I first did the install to now things have loosened to maybe 60% of travel... so it was, perhaps a little loose, but not sloppy by any accounts. So now it's at 80%. I was gonna datalog a trip at lunch too - but had "windows update" issues... and said screw it. I did drive the car. And I found some safe spots to do a few WOT hits. I can't say as tightening the belt helped some or not. I can say with 100% certainty there's "something" not optimal with the tune / or hardware... From a 20mph roll, in 3rd (but in "D"), I hammered it WOT - and the car totally "surges"- almost "bucking", I know it's a Mustang but ;) Thing is - I repeated that in 3rd (in "S" mode) so it doesn't think about shifting - it just pulled strong, gauge looks like about 9psi, cool "Whipple" sound. Now - that was the order - so tonight I'm gonna try the opposite - first WOT pull locked in 3rd, second WOT from 3rd in "D"... and hopefully have a log for those... if windows ever stops updating... Given that lone datapoint - in my mind I am going back to the tune itself... the car is a 2012, the PCM is running 2014 software... which makes the transmission select-a-shift... I'm betting part of this is the tune itself is pure 2012 logic or something... dunno enough to know if that makes sense or not - but either way, even without a hard, weird, surgey pull, the shift points are retarded compared to the VMP 93 tune I used to have. I probably will pull the TB to see if the actuator is open or closed at rest... just because... I'm stupid. I am learning how different a boosted engine is vs NA in this process... I think some of my "less than full" boost numbers are obviously from a less than fully open TB... so - ok - learning. [/QUOTE]
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Whipple 2.9 power seems "inconsistent" and lackluster
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