I thought i heard from another tuner that piggy-backs didn't work on the EVO ecu. Oh well...

Car:
03 EVO
Full exhaust
Free flow cat
264/272 cams
intake
IC pipes

Attached:

WHP/Torque (p2 91oct, xede 91oct map, xede 98oct map)
Boost/AFR (p2 91oct, xede 91oct map, xede 98oct map)

91 octane XEDE map
98 octane XEDE map

Cheers,
shiv

 

Shiv.

Would you please scan those charts in a higher resolution? It is very hard to tell which is which, although we can guess the higher output is the XEDE equipped car.

 

I agree since all the lines look the same and I have no clue what is what

 

Hmm.. there's only so big of an attachment that i can post on evom so i can't enlarge the unless i get them hosted somewhere. But FWIW, there are two runs of each of the 3 set-ups (p2 91oct, xede 91oct and xede 98oct). And they go, in that order, from least powerful to most powerful.

Your right, the boost/afr graph may be a bit harder to figure out.

shiv

 

If you email them to me I can slim them down in size and keep the resolution.

PM me and I'll send you my email.

 

Shiv, make the pictures larger and then, when you go to save them, set the JPG compression to ~60% (sometimes shown as "quality"). That will make the file size much smaller.

l8r)

 

Is that the standard "off the shelf" Stage 1+ Xede 91 octane map or custom tuned?

 

As long as your pics are less than a meg post them on www.imageshack.us it's a free image hosting service that doesn't crap out when your pic gets lots of hits

 

From what I can see, it seems the primary difference b/t the P2 and the 91 oct Xede is the boost level is set higher with the Xede run. Why not lower down the Xede's boost or raise up the P2's boost (via MBC) to make a fairer comparison? Then we can see what advantages the piggyback brings to the table vs. the flash.

Also, the Xede map should be the off the shelf map (unless the P2 was a custom tune).

The graphs only seem to point out the usefulness of the dual map capabilities of the Xede.

 

Let me get this straight: To make the comparison fair, Shiv should have given the guy a subpar tune with lower boost or Works should add a MBC to their reflashes??? Works has the ability to control boost, they just don't seem as interested in making as much safe hp as possible. Also, did you look at the shape of the curves on the Works pulls? Not too good. The smoothness of Showard's tune is no coincidence look below at my last dyno done at an idependent shop with the lowest smoothing setting. Smooth and repeatable: You can hardly tell there were two pulls!

The secondary map feature of the Xede is a HUGE advantage. And 100 octane can be found in many places at the pump so that second map will be a lot of fun!

 

Shiv i was wondering what driveline loss you account for? Rich at Dyno-Comp in scottsdale az uses a 37% loss. since you use the same dyno, are far off are your %'s? just curious.


by the way your work is fabulous!

 

That would mean I'm making 483 hp..... I don't think so. Even if you take that percentage from the amount you made instead of the "crank" hp figure I would still be making 412 hp which I don't even think I'm making. I got dynoed at the same place too and made 305. Stock evos put out about 200 on that dyno so I would say I'm making about high 300s. Like 380ish max.

Hell just take the stock figures. 70/270 = about 26%. I got 70 because stock they make 200 on that dyno so a loss of 70. Well I guess I would be making 400ish then, but I dunno.

 

400 is about correct. the car will pull slightly on a stock svt cobra on the freeway at high speed (upto 150mph from my experience then we shut down). svt cobra has 390 crank hp. and of course from a launch it will beat the svt by about 5 cars.

 

First of all, it's not mentioned whether or not the Xede map is a custom or off-the-shelf map. Do you think it's fair to compare a custom mapped piggyback vs an off the shelf flash? How does that support the superiority of one product vs another?

As for boost, the Xede is running a full 3 psi more than the P2. Does that prove that the Xede is a superior EM because it was programmed to run 3 psi more?

The shape of the Xede's power curve IS better. But again, what map are we talking about? And for the price difference, not to mention the custom mapping expense (if it is a custom map), that curve should look better. If the P2 run was also run in the same boost level as the Xede's, I suspect it would erase most, if not all, of the 14hp deficit. It's curve won't be as smooth, but then again, it isn't that bad either. Also note, it spools faster than the Xede. (pretty hard to differentiate between the colors)

As for your graphs, good for you. You're comparing your car which has NOTHING to do with the topic, as somehow representative of all Xede equipped cars. I can tell you from firsthand experience, not ONE of the Chicagoland tuned Xede equipped cars could post as smooth a dynograph as yours, even with smoothing set at 5. So yours is not representative of what the average Xede graph would look like.

In praising the flexibility of being able to run dual maps, I thought I did just that with my previous post.

This is no dig at the Xede's capabilities. I owned one for a year.

And for Works to say piggybacks don't work with the Evo ecu, they're dishonest or possibly they're just stupid. You'd be hardpressed to find 10 people on this board who would agree with their view.

 

humm thats funny i have 4 firends including myself with vishnu tuned evos... 2 have xedes and 2 have just base x flashes(fpr stage 1). to be honest the base xflash is awesome. we compared our dynos(on cars with same mods vishnu stage 1) (at a dyno day) and the curves were very similar. the addition of the cam gears made the curve abit smooother. this was done without any dyno time just an off the shelf flash. (I dont work for vishnu so im somewhat impartial despite my name btw) I think their off the shelf flashes and xede flashes are nearly as good as the custom tuned ones. Honestly the custom tuning is only really beneficial when you want a high octane map for the xede. other wise the "stock" maps are awesome and are almost identical on every car. (I got the numbers when they had a dyno day)


oh and btw the difference is far more than 14hp.. its more like 30 hp. and the torque diff is far more.