Well got my new tunes from Mike the other day. Man its a difference with the 93 octane on the tow and perf. My tunes are 87 perf, 93 tow,93 perf. I was messing around the other day and did a couple of 0-60 times with the to 93 tow, 87 perf, 93 perf. Here are the result not sure what are trucks are supposed to be like in 0-60. I have a 2005 supercrew 4x4.

Stock: 0-60= 10.5/10.2 sec

87 Perf: 0-60= 9.4/9.1 sec

93 Perf: 0-60= 8.3/8.1 sec

93 Tow: 0-60= 7.1/7.1 sec

This is all on a flat straight away. On different days. I had to wait until I ran my tank down to 1/4 on 87 to fill it up with 93, the stock was done with 87 octane. Exxon gas, which is the best I have around here. Either that or Chevron. Not sure if these are good times for a supercrew in 0-60. I haven't tried any 1/4 mile times yet. I'm still trying to find a good straight 1/4 here in WV. I just thought I would share the info. I'm surprised that the Tow tune was the fastest of them all. Oh and by the way with the Tow tune in I got to eat my first Hemi the other day. It was awesome. He pulled up beside me reving his duals, which I give him was louder then my duals, but he didn't have the power that I did. He didn't stand a chance, I had him from the get and he ended up quiting not to far into it. I have a buddy who has a chevy 2500 ext that has duals on it that was talking crap, not sure if the supercrew 150 will take him but i'm going to try. I'll post the results.

Ski

 

congrats!!

I could be wrong, but i though I read somewhere that its not a good idea to fo WOT with the towing tune ???

 

Hmm I haven't heard that about WOT, that's not good cause I've been doing alot of WOT. Its hard not too feeling that power. Hmm I'll have to do some research on it. Thanks

 

Hey ski, don't worry about it. I do it all the time....

 

Hey Ski nice work on the dodge. So when you say stock ran a 10.5 is that really stock? Or do you have some other mods. You stated the dodges duels were louder then yours so does that mean you have a catback? What other mods are you running?

 

Sorry about that, when I mean stock I mean without the chip. I have cat back true duals, and AF1.

 

I've had my towing tune installed for over a year now (SCT 9100) with 93 program and stomp it LOTS. Never hurt anything.

It stays loaded and works great, just the other day did just about the same thing. 2 guys in a Dudge 1500, short box regular cab with duals making all kinds or racket against my 96' short box regular cab 4x4. I laughed at them and shook my head like they didn't have a chance. They even rolled the window down and said "that ford ain't $^**". Make a long story short, light went green...at the next light they again rolled down the window with mouth fully open and not 1 but 2 feet inside of each of their mouths.

the towing tune on 93 octane ROCKS!!!

Me...
Them...

 

Is the tow tune stronger than the performance tune?

 

low end torque in the tow tune makes the truck just flat git'it!
the performance tune is the more hp tune more hp in the upper rmp and that i mean above 3000.

thats my guess as to how come/why
mike could tell us more as i know he'll be by soon to look at all the ranting

Randy

if you lived in Virginia Beach we could line-em up and see

 

Ski - great report (I have the same truck)... strange - I also decided that I prefered the feel of the 91 tow over all the other tunes I got from Mike on my Xcal2.... you're stopwatch just help me confirm what my butt felt.

Plus I just like the way the tranny shifts holding a few more revs during normal driving about town.

 

Hi.

Interesting thread. Puzzling, though.

In these links, Mike's posts indicate otherwise, and it's my understanding that the 'perf' tune is 'king' - as I did ask this same question, as you'll see...

https://www.f150online.com/forums/sh...light=tow+perf

https://www.f150online.com/forums/sh...light=tow+perf

'Course, I can't definitively confirm this since all my tunes are 'perf, no 'tow' tunes - and they all rock!

Cheers
Groginator

 

These acceleration numbers don't make sense to me. Logic would dictate there's no way towing should out perform the performance tune Nevertheless, I am intrigued and going to have to try switching to the tow. Maybe Mike will comment further...

 

I'll let you guys figure it out.... very happy with the 91 tow, so thats where i'll leave mine. Next I need to hook up my PC and get some specific tuning data to see if the 91 tow needs any tweaks from TP

 

Hi Everyone,

This is very easy - the ONLY way you get quicker acceleration times on the towing tune than the performance tune is when there is a problem with the truck - or your are making the HUGE mistake of trying to compare times run on different days, seat of the pants guessing, etc., as none of that is valid.

In most cases, if there actually is a true detriment in performance with the performance tune versus the towing tune for the same octane levels, this happens because the vehicle owner never bothered to do the datalogging as per the clear and very easy to follow instructions we provide to each and every one of our custom tuning customers - and so the truck's MAF transfer function needs a lot of adjustment - meaning that you are running too lean for best power on the performance tune. Usually because the truck is running way too lean in STOCK trim - and not one person in this thread has ever provide us with any STOCK A/F ratios, other than Ski, and even that happened only because WE did it during the last dyno day because he was present.

So basically, none of you have any idea what kind of A/F ratio you were running in bone-stock trim.

When the truck is running leaner-than-commanded in the performance tune, then of course it runs quicker on the towing tune - when you load the towing tune, it commands a richer A/F to keep the EGT's down for towing heavy loads, so you get more fuel, and thus it will run quicker in a scenario where the performance tune runs leaner. We see this all the time, and it happens **when we do not get any data** and thus cannot make any changes to the tuning to see if it's just tuning tweaks that are needed for that individual vehicle, or whether that vehicle has an actual problem.

Now in Ski's case, we had him on the dyno, but he had to leave before we could get him finished with the AF1 intake system on there - the intake as installed after he was taken of the dyno and then he left. So we do not have any data in his final configuration, however, we DO know that his truck had some very serious A/F ratio problems in BONE STOCK trim - that truck ran 15.0:1 at full-throttle, & I'd say that's a pretty big problem. We did correct it on the dyno, but never got any data from after the intake change - so given that it ran dead lean on its stock tuning & intake, I am not surprised that it's probably running leaner than commanded now with the aftermarket intake 0- thus we must have data to see if we can correct it via tuning, or if he just needs to take the vehicle in for service - and the latter is what I suspect with a stock 15.0:1 A/F, given the numbers he's just posted now in this thread.

In fact, his truck is the one that some of you have seen me talk about in other threads that has a problem with it's STOCK A/F's anyway - we still have all his dyno plots, we cna easily show his dealership that data, as all they will care about (assuming they'll be the typical idiots looking only for a check engine light) If I had to guess based on what I now see here and our existing data from before, most likely he has a failed or failing MAF sensor, or a clogged fuel filter, or something else that is causing his truck to run abnormally lean, as it was certainly full points leaner than commanded in stock trim - and no, his cat-back exhaust change had absolutely nothing to do with it as long as the 4 factory cats & all O2 sensors are present.

It was right when it left the dyno, but it took quite a bit of correction to get it there - so I'm nor surprised if it turns out that it's now running lean again with the intake kit on there - an intake kit that does not cause other trucks to run 3 points leaner than commanded, it's a problem with that individual truck.

Continued in next post.........

 

(Continued...)

In short - running much leaner than the commanded A/F ratio can easily happen in some of these bone stock 5.4 3V's, while other absolutely identical trucks, even with the exact same computer code & modifications, run perfectly fine and exhibit no such symptoms. They vary THAT much in BONE STOCK trim, just as Ski's truck did - that's just the plain reality of it, my friends.

This is EXACTLY why we keep harping on datalogging - Remember - there is no magic wand that can be waved to make all vehicles run exactly the same with the exact same tuning & exact same modifications - it doesn't work like that.

The bottom line is, as we proved once again at our last dyno day to everyone there, typically our performance tunes make 8-10 more HP at the rear wheels compared to our towing tunes - and thus will run quicker in the 1/4 mile due to the combination of higher power and the slightly higher WOT upshift points - not slower.

So there is no valid reason for any of these trucks to run slower on their performance tunes other than running leaner than they should be - or they have some other underlying problem.

So please - if we have tuned your vehicle, do the datalogging right now and get that data to us as per our datalogging instructions. Then we will review it and make any corrections that may be needed - and be prepared, as we are seeing, as we get to dyno more and more BONE STOCK vehicles, that there are some of these trucks, like Ski's, that are so far off in BONE STOCK trim that they require quite a bit of work to get them to run correctly. That means you may very well need to datalog more than once, usually at least twice, as we will of course have to check the results if we have to make any changes -

You datalog (or come here & pay us to do it for you), send us the data, we make changes, send them to you, and you datalog again to check those results and we review that data again to see if we feel it is satisfactory - if not, then we make MORE changes, and that process continues until we are finished, and the truck is running spot-on correctly - assuming it does not have mechanical problems. Then and ONLY then is your custom tuning actually finalized. We have tuned hundreds of other TEM7's like Ski's that have not had any issues - then along comes his brand new low miles bone-stock truck, running 15.0:1 on the FACTORY tune. It happens sometimes. And we've taken 2004's with 100K miles on them and they run perfect 12.0:1 in stock trim, and run the exact A/F we command in our custom tuning. It happens.

The moral of the story? - do your datalogging, gentlemen - your XCalibrator 2 allows you to datalog everything we need except the A/F ratios, and anyone can get to a dyno for a low cost and get the A/F's (and don't forget to datalog everything else at the same time you are getting the A/F ratios, too.) - or you can pick up a low cost wideband A/F ratio recorder from us, we keep them in stock as well - the point being, everyone can datalog and easily get us that info, they just have to put a little effort forth - so please do, as we WANT you to be HAPPY and have your truck running it's very best!