Supercharger or not?

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B E N

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Whipple stage 2 installed. This is the issue I’m having at first test drive.
I put it in gear and drive runs fine (trans not shifting right) come to a stop put it in park and truck revs to about 2750 holds there a few seconds then revs fall to around 500 hangs there a few seconds then dies
Every time...

I am nit sure why this would happen as I trust Whipple perfected the tune.
I am calling Whipple on Monday. My mechanic thinks is a tune issue and suggested we work with Lund as that is who does all of his mustang tunes with Whipple supercharger installs.
Any advice?

This isn't a tune issue. Its likely a vacuum leak or install issue. Make sure there are no hoses dangling free, make sure the throttle body is torqued properly, make sure all of your intake piping is tight (give it a good wiggle, see if it falls apart), tighten any loose hose clamps.
 

W0n70n

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I was having what felt like tuning issues and the motor would occasionally stall and die shifting from reverse to drive or vice-versa and I ended up finding out that there was a small amount of air leaking past the maf sensor and I reset the adaptive tables to the transmission in conjunction with a trans filter/fluid replacement and the truck is completely different than it was, I couldn't be happier. One thing to mention that I hope is an isolated incident with the whipple kit is the adjustable idler pulley from the whipple kit's bolt is too long and bottoms out against the alternator bracket before it is actually tight and it caused the pulley to wobble under hard throttle and it kicked the belt. I had to pull it, measure a bunch of times and grind it down to get it to tighten correctly without bottoming out and it solved a grinding sound and belt issues all at the same time.
 

letsgetthisdone

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the whipple tune BLOWS! You spent this much money already, don’t skimp out on a “best guess email tune” find someone local to you to have it strapped to a dyno and tuned.
Anyways than that is a best guess tune

No, actually a real dyno tune is the best. For ANYONE to suggest otherwise is simply foolish

Email tunes are not "best guess tunes". The raptor ECU provides all the data needed for a proper tune without a dyno.

The only downside to street/email tuning is that you will likely be speeding to complete WOT data logs.

What you are saying is simply factually incorrect.
 
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vegascarnut

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No, actually a real dyno tune is the best. For ANYONE to suggest otherwise is simply foolish
This is just wrong, 100%. No one has tuned more of these than JDM. Plus, I’ve driven several tunes on mine—one dyno, one from another shop and JDM. JDM rocks, and it’s more than the engine tune—transmission shift points, line pressure, lockup settings. It all matters, and they have it down. Want it tweaked? Send them your data log and they will do it.


Sent from my iPhone using Tapatalk
 

BoostedToy

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Agreed with these past posts regarding email tunes. I’d argue aside from likely speeding, the real/street data logging provides a more accurate loading for the tune. Provided the tuner is good, this should be no different than my previous tuner doing the initial tune on the dyno and “dialing it in” on the street.
 
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Andrrw

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These reply’s are amazing. Turns out there was an issue with downloading the tune from Whipple. Not their mistake. My techs mistake. He accidentally loaded a tune that came with the tuner. Whipple engineers are working with the shop to figure it out. I am hoping they work together tomorrow to figure it out. If not I feel like it may wait until next week. Thank you all for the reply’s. The stage two kit did come with 60# injectors and larger throttle body and heat exchanger with dual fans. The shop does mostly Whipple installs on Mustangs and they work with Lund for programming on them. Lund will not program a Raptor with a Whipple supercharger. Found that out today as well. Seems like once I get the correct tune in place from Whipple it should be ok. Does it usually work in the first tune they send over or will we need to go back and forth with info to dial it in?
 

MTF

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These reply’s are amazing. Turns out there was an issue with downloading the tune from Whipple. Not their mistake. My techs mistake. He accidentally loaded a tune that came with the tuner. Whipple engineers are working with the shop to figure it out. I am hoping they work together tomorrow to figure it out. If not I feel like it may wait until next week. Thank you all for the reply’s. The stage two kit did come with 60# injectors and larger throttle body and heat exchanger with dual fans. The shop does mostly Whipple installs on Mustangs and they work with Lund for programming on them. Lund will not program a Raptor with a Whipple supercharger. Found that out today as well. Seems like once I get the correct tune in place from Whipple it should be ok. Does it usually work in the first tune they send over or will we need to go back and forth with info to dial it in?
Every build and/or vehicle is different, elevations and fuel are different so it may need tweaking to your liking.
Also the new Gen 4 compressor and the Whipple Twin 68mm TB requires a more refined Ford engineered calibration strategy with normalizing.
More than the old Tunes that are floating around for Tuners to edit.
 
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