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2011-2014 Mustangs
Engine/Tuning
New Whipple 2.9 on 2012 : mild surging @ low RPMs
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<blockquote data-quote="fishpick" data-source="post: 15579767" data-attributes="member: 182347"><p>OK - [USER=143188]@Riddick[/USER] made me do it...</p><p></p><p>I looked up FedEx - and (because, as my wife says, I live life like LD in Curb Your Enthusiasm) - my package with the IAT sensor seems to have "stopped moving" - I said screw it. It's 52F out, I'm not going to push it and will keep the carr cool, but I HAVE to try out the revised tune even w/o the IAT sensor - because I need to know!</p><p></p><p><span style="font-size: 26px">RESULTS : WTF!</span></p><p></p><p>WOW - [USER=156070]@Paul.[/USER] no joke. </p><p></p><p>Started up and boy was it pissy... likely some on TB positioning data left on the TB chip itself from the screw up I had - so I expected bad things to come... it idled high and just at idle it was searching for a home from 800 - 1200, up and down... I kept telling myself - this is gonna be bad... then after 30 seconds or so it seemed to settle a bit - so I took it down the 1/2 mile driveway at just about idle of 1000RPMs...</p><p></p><p>Here's the first test, that gentle acceleration around a turn from gravel to asphalt.</p><p>FIRST TUNE <em>(my screwed up one that was all my fault)</em> : would feel like I was feathering the throttle in and out. It was here my wife asked me "why are you doing that" and then later "this car needs a tuneup".</p><p>THIS "TRUE" Stage 3 TUNE : drove completely stock around the corner. Smooth. No surge at all.</p><p></p><p>I smiled and was like - ok - that's a really good sign...</p><p></p><p>Next - gentle acceleration from 20 - 50mph...</p><p>FIRST TUNE <em>(my screwed up one that was all my fault)</em> : would go to about 2000RPM, then a big time flat spot - surge - then shift... kinda like driving with learning teenager.</p><p>THIS "TRUE" Stage 3 TUNE : smooth acceleration curve and shifting. I'd say the auto is "better" than stock - but maybe not as "crisp" or tight feeling as the VMP tune I had before. BUT - this wasn't a transmission upgrade... AND - where the F did all this power come from? Like - WOW. AND - AND - this whistle... OMG - I wanted a twin screw for that sound - and - there it is now! And mind you - this was "gentle" acceleration - never above 3500 RPM.</p><p></p><p>Came to a corner - stopped. Idle at 900 mabe - steady - no surge. Went around corner - no surge - smooth as stock. Got on it (up to 3500 but more of a stab than a gentle acceleration) - woziers - there's torque here like there NEVER was before. And that whine. Glad I didn't have to stand up <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p><p></p><p>Granny drove it as I saw the cylinder head temps moving up a little and - again - no IAT sensor so - ZERO desire at this point to detonate it - back home and now sitting like a little kid on Christmas looking out the window waiting to see if the tracking data is old and if Mr FedEx is gonna come rattling up the driveway today!!!</p><p></p><p><span style="font-size: 22px">MORAL OF THIS THREAD</span></p><p>When working with folks remotely on technical stuff - don't omit any details - be very clear and never assume anything. I did and it made my initial experience "ho hum, this is a super charged mustang, ehh, not as impressive as I thought and driveability sucks"... now, in one short test drive - I'm all "holy crap - this is more amazing that I ever expected - WOW - what a difference over stock!"</p><p></p><p>I will totally update my build thread once the IAT relocation is done and I get to drive it more than a partial lap around a cool block... but - my first impressions (for real this time) are - DAHUM this thing is all monster now and totally driveable!</p></blockquote><p></p>
[QUOTE="fishpick, post: 15579767, member: 182347"] OK - [USER=143188]@Riddick[/USER] made me do it... I looked up FedEx - and (because, as my wife says, I live life like LD in Curb Your Enthusiasm) - my package with the IAT sensor seems to have "stopped moving" - I said screw it. It's 52F out, I'm not going to push it and will keep the carr cool, but I HAVE to try out the revised tune even w/o the IAT sensor - because I need to know! [SIZE=7]RESULTS : WTF![/SIZE] WOW - [USER=156070]@Paul.[/USER] no joke. Started up and boy was it pissy... likely some on TB positioning data left on the TB chip itself from the screw up I had - so I expected bad things to come... it idled high and just at idle it was searching for a home from 800 - 1200, up and down... I kept telling myself - this is gonna be bad... then after 30 seconds or so it seemed to settle a bit - so I took it down the 1/2 mile driveway at just about idle of 1000RPMs... Here's the first test, that gentle acceleration around a turn from gravel to asphalt. FIRST TUNE [I](my screwed up one that was all my fault)[/I] : would feel like I was feathering the throttle in and out. It was here my wife asked me "why are you doing that" and then later "this car needs a tuneup". THIS "TRUE" Stage 3 TUNE : drove completely stock around the corner. Smooth. No surge at all. I smiled and was like - ok - that's a really good sign... Next - gentle acceleration from 20 - 50mph... FIRST TUNE [I](my screwed up one that was all my fault)[/I] : would go to about 2000RPM, then a big time flat spot - surge - then shift... kinda like driving with learning teenager. THIS "TRUE" Stage 3 TUNE : smooth acceleration curve and shifting. I'd say the auto is "better" than stock - but maybe not as "crisp" or tight feeling as the VMP tune I had before. BUT - this wasn't a transmission upgrade... AND - where the F did all this power come from? Like - WOW. AND - AND - this whistle... OMG - I wanted a twin screw for that sound - and - there it is now! And mind you - this was "gentle" acceleration - never above 3500 RPM. Came to a corner - stopped. Idle at 900 mabe - steady - no surge. Went around corner - no surge - smooth as stock. Got on it (up to 3500 but more of a stab than a gentle acceleration) - woziers - there's torque here like there NEVER was before. And that whine. Glad I didn't have to stand up :cool: Granny drove it as I saw the cylinder head temps moving up a little and - again - no IAT sensor so - ZERO desire at this point to detonate it - back home and now sitting like a little kid on Christmas looking out the window waiting to see if the tracking data is old and if Mr FedEx is gonna come rattling up the driveway today!!! [SIZE=6]MORAL OF THIS THREAD[/SIZE] When working with folks remotely on technical stuff - don't omit any details - be very clear and never assume anything. I did and it made my initial experience "ho hum, this is a super charged mustang, ehh, not as impressive as I thought and driveability sucks"... now, in one short test drive - I'm all "holy crap - this is more amazing that I ever expected - WOW - what a difference over stock!" I will totally update my build thread once the IAT relocation is done and I get to drive it more than a partial lap around a cool block... but - my first impressions (for real this time) are - DAHUM this thing is all monster now and totally driveable! [/QUOTE]
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New Whipple 2.9 on 2012 : mild surging @ low RPMs
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