The Official Superchips Forum

SC Guys,

I've been running using the 'raised shift points' feature for some time now and have frequently noticed an RPM 'bouncing' near the shift point (around 6K RPM) that's especially noticeable using just a little less than full throttle. At first, I thought it was bouncing off the rev limiter but was told by someone at SC that the rev limiter is raised to 6,350 (or so) RPMs when using raised shift points, so I don't think this is the issue.

After installing your new Advanced Data Acquisition software, I've been able to log exactly what's going on here now for you to see, hoping that you can address this now. This first plot is a launch from a dead stop under the following conditions:

- SC settings: raised shift points, 91 tune, reduced torque mgmt, paddle kick
- Roll on the throttle up to ~80% pedal position (as displayed on the EVIC) and hold at 80 through the run



Check out the big drops and variation in throttle position at 4.5 sec (this is the 1st-2nd shift) and again at just over 10 sec (this is the 2nd-3rd shift). This behavior is much more noticeable to the driver at the 2nd-3rd shift and almost feels like it's hitting the rev limiter. Notice how the Vehicle Speed remains constant for about 0.5 seconds at the 2-3 shift while the throttle is bouncing up and down.

This behavior is VERY annoying and I'm hoping you can address it soon. If you'd like, I'm willing to be your test bed for an update and can take this data again and share it with you while you work out a solution. Please let me know your thoughts.

I don't see engine speed, but it looks like the throttle pedal is actually moving. The commanded looks to be following the commanded, which is pedal position.

If you could plot again with engine speed that would be great. This is where more than 4 parameters would come in handy (hint, hint SC)!!

Mike

Having only 4 parameters to track, something had to go. Because I am wanting to see the trend through multiple gear shifts, this plot would look like spaghetti if it is was plotted vs. RPMs, so I chose vehicle speed instead. I would love to be able to track RPMs during this time as well, so more than 4 parameters would be very useful.

Note that Comm. Actuator (megenta) which stands for Commanded Throttle Actuator is not the pedal position - this parameter is what the PCM is requesting the ECT (electronically controlled throttle) to do. The pedal position is Acc. Ped. Pos. D (light blue) and it does not decrease during the shift points when you see both the Throttle Position (dark blue) and Comm. Actuator decreasing and 'bouncing'.

Ah, I see it better now that I look at it. If you commanded and TPS are going down (they are), then its doing whats its told; but from where since your pedal position is rock solid.

I wonder if it has something to do with the TCM shift points and the tune. At 80% throttle , maybe the TCM is not ready for a shift, yet the engine is bouncing the limiter because of not being at WOT (there are multiple limiters based on such things as TPS).

The raised shift points has other issues and I have stayed away from it except to test and help verify other peoples concerns.

Concerns for the raised shift point cal:
- 1-2 shift at 6,000, 2-3 shift at 6200. Most would like 6,000 always like the Mopar Performance cal. 6200 is just too high for a close to stock setup and considering NO custom tunes yet, why bother.
- Inconsistant autostick operation. Might be fixed with the latest TCM cal, but it is always fun trying to get the dealers to do it.
- dcoburns TPS issue.

Mike

Here's another run where I set the SC back to standard shift points, demonstrating how the problem only occurs when using raised shift points. Everything else is the same as before in post #1 (roll to 80% throttle on the EVIC and hold steady):



Note that there are no drops in either Comm. Actuator or Throttle position now. There are also no flat portions of the speed curve as in post #1. There was no noticeable throttle bouncing from a driver's perspective.

Why the heck is nobody at SC responding to this?? I've opened a support issue in addition to posting this info above but still no response. This is a known issue with these cars and I have put in quite an effort in order (* this and offer my assistance to help solve it.

Please SC guys do not ignore us...

I've forgone the rasied shift points since SC's are too high. 6000 would be better than the 6250 SC dials-up. First, there is precious little to be gined in HP with these last 250rpm. Seond and very important is that the raised shift point only serves to build up high line pressure in the tranny....I think that this casues much more harm than good.)

I receommend NOT using raised shift points, until such time that SC permits a custom shift point. Thjen setit up for 6K and be own your way!

I am sorry but your statment about tranny pressures is not even close.
We do not touch the "pressure" in the Hemi trans at all.
Firmer shifts are going to help the trannys in the fact that it extends the life by less friction, less heat= longer fluid life.

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I'm sorry Ron, but your response isn't even close to being on topic with this thread. You've managed, once again, to offer a clear as mud statement that does nothing to further or answer the actual discussion.

Ignoring is what they seem to do best. Your efforts describing and logging your issue will, more than likely go on deaf (or dumb) ears. I made first contact 6 months ago on my raised shiftpoint issue. flashpaq.com/forum/viewtopic.php?t=916

Don't hold your breath, my Flashpaq friend, I've come to the conclusion that I'm more likely to have my Magnum wrecked, stolen, or sold before someone at Superchips dutifully acknowledges a problem, let alone fixes it.

_________________
'05 Inferno Red Magnum R/T
Engine Upgrades: Borla 112 System w/ custom X-pipe - DMH Electric Cutouts, Volant CAI, SuperChips 91 Performance Tune, 180 T-stat

I am having the same problem. In the raised shift point setting the transmission acts like it is in paddle hold instead of paddle kick. I filled out the service ticket and gave a really good description of the problem; the only response I received was to ask for the tuner's serial number. Oh, and to ask if I would want a powertrain warranty through Superchips. Which is really funny because if we are having such a hard time getting them to address some of the smaller problems what makes us dare think about trusting them with a serious problem. At the least they could lie and say they are looking into it; not just ignore their customers.

I have 3 tickets in right now, almost 3 months old. No replies at all, I think they have abandoned their service ticket system because NO ONE that has submitted a ticket recently has received a reply; not even we are working on it, just an email trying to sell an extended warranty. Is that the only reason to put your email address on the ticket, so they can sell it?

Instead of fixing problems, they have SOLD your email address (without your permission) making that last dime off of you. I have been patient but its getting old! At this rate, it will be my last dime and others will know.

Mike

I, too, agree with the general lack of responsiveness to customer's needs. If I had known about these forums before buying my tuner, I would have purchased elsewhere.

That email asking questions about purchasing a vehicle powertrain warranty... what the heck was that? Instead of spending their time worrying about getting into the vehicle warranty business, they should focus on customer service and taking care of their existing customers. They can't respond to some pretty simply service requests, how would one reasonably expect them to respond to a several thousand $$$$ engine warranty?

Superchips? Are you listening? Fix what you've got!!

Its an 3rd party warranty company. They just sold their email list to whoever would buy it, more $$.

Mike

I sort of wondered about that one. The email linked to a specific IP address instead of its resolved name. The address was: 72.32.185.10

Using the ARIN WHOIS as a lookup:

Search results for: 72.32.185.10


OrgName: Rackspace.com, Ltd.
OrgID: RSPC
Address: 9725 Datapoint Drive
Address: Suite 100
City: San Antonio
StateProv: TX
PostalCode: 78229
Country: US

NetRange: 72.32.0.0 - 72.32.255.255
CIDR: 72.32.0.0/16
NetName: RSCP-NET-4
NetHandle: NET-72-32-0-0-1
Parent: NET-72-0-0-0-0
NetType: Direct Allocation
NameServer: NS.RACKSPACE.COM
NameServer: NS2.RACKSPACE.COM
Comment:
RegDate: 2005-02-25
Updated: 2006-11-20

RTechHandle: IPADM17-ARIN
RTechName: IPADMIN
RTechPhone: +1-210-892-4000
RTechEmail: ipadmin@rackspace.com

OrgAbuseHandle: ABUSE45-ARIN
OrgAbuseName: Abuse Desk
OrgAbusePhone: +1-210-892-4000
OrgAbuseEmail: abuse@rackspace.com

OrgTechHandle: IPADM17-ARIN
OrgTechName: IPADMIN
OrgTechPhone: +1-210-892-4000
OrgTechEmail: ipadmin@rackspace.com

OrgTechHandle: ZR9-ARIN
OrgTechName: Rackspace, com
OrgTechPhone: +1-210-892-4000
OrgTechEmail: hostmaster@rackspace.com

# ARIN WHOIS database, last updated 2007-03-23 19:10
# Enter ? for additional hints on searching ARIN's WHOIS database.

I don't see anyting in there relating to SuperChips or FlashPaq.com. superchips.com is 216.242.145.28 and flashpaq.com is 216.242.145.46. rackspace.com seems to be a simple web hosting company and it does look like it was unsolicited to me. This unsolicited email from this 3rd party is unbelievable to me. It's not like SC *gave* us these tuners in exchange for them being able to sell to 3rd party marketers. We paid $$$ for these and SC is exploiting our naiveté and nothing more than a simple desire to have our vehicles run better.

SuperChips, you've sold your soul to the Devil.

I had the same issue, need your TCM updated with the latest flash, go to the dealer and request it, they'll charge you 1 hr for it.

Info: Web://www.lxforums.com/board/showthread.php?t=48865

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