I have had my chip reburned 3 times now trying to get my speedometer correct for larger tires and it is still off , taking back to superchips today as i work near by , originally sent it though Troyer performance , has anyone else had this problem . The last burn was actually for smaller tires than i have on and it the speedometer reads 80 when on a gps I am actually doing 70 this is the 3rd reburn , getting alittle frustrated at this point , any help out there?

 

Hi Stown,

I'm sorry to hear you're having a problem.

If we provided you with that Superchip, then you already know from reading our documentation in the section titled "How To Get Technical Support............", that you need to CALL US to let us know you have a problem. Our documentation very clearly points out specifically not to post your problem here on F-150 Online, that doing so is not appropriate and will not in any way help you get any problems resolved. Our documentation points out in several places to please call us right away if you have a problem. That is the *only* way to get help with any product we have provided, so please, do as your documentation tells you. We're more than happy to help you get any problems resolved, and we very much want you to be happy, of course. We'll bend over backwards to make that happen, but you have to CALL US, please.

In general, the correction for tire size is usually straightforward in the 1999 & up F-150's, as long as the correct data is used (like anything). It's a matter of knowing the exact height, and then the correct number of revolutions per mile for that tire.

However, once in a while we'll come across a particular computer code where that is done differently in the program from any other methods previously seen, and in those situations it can take a few adjustments to find that new implementation and nail the calibration. Now I have no idea if that is the case in your particular situation or not, but that does happen from time to time. In general, as long as we have correct data those speedo calibrations are nailed first time over 98% of the time.

In your case, this is very simple to handle as you're right there where Superchips is, so you can have them take a look at it & make adjustments to the program as required. Very simple. You do need to call us first of course, so we can let them know & set up an appointment for you.

One problem we see, just to let you know a bit more about correcting the speedo for larger tires in general, is that in many cases the actual tire height does not match it's P-metric sizing, and in tires that are sized in inches (say, like a 35X12.50X17 for example) we see *tremendous* variances between actual measured height and the manufacturer's claimed height. For example, a tire that is supposed to be 35" tall is only 34 inches tall, or 33.5", etc. When that happens, their revs per mile spec is usually off too, and using their data does not properly calibrate the speedometer. The tires need to be physically measured for their exact height, as installed on the vehicle and inflated to the proper pressure, and then the correct calibration can be done.

Another aspect that is problematic is trying to make your speedo agree with a consumer GPS setup, we *never* advise anyone to attempt to calibrate their speedometer according to GPS. That is not an acceptable technique as there is just too much variance in all the various consumer GPS equipment on the market, even after much of the deliberate skew introduced into those signals by the military has been reduced. Sometimes we'll see that be OK, but far more often it's not.

The bottom line is this obviously needs to be taken care of for you, which we're happy to do, but it's not possible to help you with this here.

We look forward to speaking with you soon & hang in there, we'll be happy to help you get this taken care of, please just give us a call, OK? Thanks!

 

It is all fixed , just got back from Superchips.

 

Mike, I was very satisfied with your support, since I had been working with Superchips after the first reburn I didnt call you back.

 

Hi Stown,

Thanks for your response!

After having our people check records here yesterday, I think I know who you are (as we only had 1 person with a problem reported on a speedo calibration), and so I was made aware yesterday that you had already been working with Charlie at Superchips on this directly, I wasn't aware of that when I first saw your post & responded to it. Charlie had you come by so he could do a read on the PCM in your truck to see if your PCM had perhaps been reflashed, etc. You finished up with them yesterday, & now the speedo calibration is correct.

In those rare cases where the speedo recal isn't nailed the first time, it's easily cured by just doing standard troubleshooting, and is virtually always one of the potential issues that I had mentioned in my last post, like an oddball implementation in a rare code, etc. That happens rarely, and in this case it was simple to handle quickly since you live right there.

I'm very glad to hear they got it taken care of for you, thanks very much for letting us know ST, that's greatly appreciated.

Have fun,

 

now thats what I call , customer service....

 

stown-

Have you measured the new burn with your GPS to see how accurately it indicates your speed?

I'm just curious after reading Mike T's posting regarding the inaccuracy of consumer GPS units. My experience has been that my consumer GPS is EXTREMELY accurate at measuring speed, even in commercial jet aircraft.

Just curious...

 

Hi B-man,

I'd like to hear back on that same question, to see just what his GPS gear now indicates. However, that is just a point of curiosity, as that still doesn't mean that if his is now accurate, they all are, it means nothing more than his is. And in our experience, there is a lot of variation, at least to date.

Our experience has been that in general, for years using GPS for speedo accuracy was a joke. Then as the military reduced the skew in the basic signal, *some* of the consumer GPS gear has been fairly accurate, just as I said above. And I think in time we'll eventually see that all the consumer GPS gear will be accurate enough to be used to compare speedo & odo accuracy consistently.

I have no doubt that some people (and more as time goes on) are getting good results comparing to GPS, we deal with this every day and frankly, we're delighted, as that makes things much easier for us. Being able to fire up GPS & do a quick comparison is *very* convenient.

You have to remember that we can only deal with our experiences, which are hundreds & hundreds of people using this gear over a period of years, so it's not like we get to see one GPS package and it's the same for everyone and all works just fine, that hasn't even been close to the reality to date, though there's an obvious pattern of that improving.

Using GPS, while getting better certainly, has traditionally not been accurate enough to use for speedometer & odometer calibration. Luckily, that is changing, and no doubt we're not far away from a time that you can generally use any GPS gear to do that & get accurate results.

 

Actually with the reburn it is right on with the GPS.

 

Hi Stown,

OK, that's great to hear & thanks for your response!

 

please please please mike run me a super chip 1100 for my 03 lightning svt with #6 pulley already installed and include new bypass boost program should be bettet than my diablo sport chip????????

 

Hi tlfwatch,

Well, if you're asking me if we can do a proper custom tune for your 2003 Lightning with the 6 PSI pulley on it, sure we can, that's very easily done, just give us a call.

I was personally involved in the 2003 Lightning tuning R&D project for Superchips, that was our project ( Ron Durham, a member here also participated, his Texas Lightning was one of the vehicles we used & did virtually every configuration of modifications to so every potential combo could be tuned for), which we completed back in February down in Florida.

In fact, we can tune it so you can run *any* level of boost the factory Eaton blower can deliver and not need to have the chip reburned. You can run anything from a 2 PSI pulley to an 8 PSI pulley, and with our tuning the PCM will continue to respond properly to the increased loads from more and more boost on the factory Eaton M112 blower.

I do *not* recommend that you use a single program type of chip in any forced induction (supercharged, turbocharged or nitrous) application, we prefer to have 2 programs for better flexibility & highest performance, too. We *can* tune the truck using a single program (1100) Superchip, so if you prefer, we'll do it that way for you, I just don't like doing it.

Just give us a call & we can easily take care of this for you, no problem!

 

Do you make a chip for ford 4.2ltr v-6. Don't want to race it, just looking for some low end torque and firmer shifts. I spend a lot of time up in the mountains. It's two wheel drive and stock. Any info would be great. Thanks

 

GRUNT 180 -get a 9100 tuner- do a search for posts by my self or "9100" and you will get a product that will deliver what you want and some more!-phil

 

Thanks for the info. I'll start my search now.