SPOautos

As most of you know I'm having my PFC tuned at XS Engineering.
Let me start off by saying this is what I learned while talking to an employee there.

First there are almost NO companies that have the Power XL software. I think XS is the only RX7 tuner that has the software. RAY does NOT have the software!!!!

Now in further conversation I have discovered why no one else uses it......

The Power XL software is in total Japaneese and even requires the Japanees version of Windows!!!!!!!! You have to know fluent(sp?) Japanees to use the software!!!!

All of the tuners at XS are Japanees so its no big deal for them.

To me this explains alot as to why there are so few shops using the software.

Later,
STEPHEN

Astro

I've heard that Ray alters base maps too though..
like when someone buys a big single setup and PFC from him at the same time, he sets the base maps and injector info accordingly
that can't be done without the xl software right?

SPOautos

Yea, you can tune for single and inj without the xl software. The problem is that all those changes are corrections to the Apexi base map and if something happened and you had to reinitialize(sp?) your PFC you would loose all those corrections and be back to the standard Apexi base map.

With XS using the software they are essentially creating a new base map and replacing the Apexi map with thier map.

They were still kinda closed lipped about what the software is capable of. I dont see how it could be capable of much more besides data logging, the radiator fan stuff, and maybe some other small misc things. What else is there??? Thier maps replace the Apexi map instead of making corrections to it and they can swap the maps in and out real easy via computer kinda like a Haltech. I dont know, maybe there is a big difference and they just wont talk about it. My understanding is they have to pay like $500 a month to lease that software......I'm sure they dont do that for nothing!!!!

I just thought I'd share that it was all Japanees, I thought that was VERY interesting and I'd never heard it mentioned around here before.

Later,

RX794

From what I know, I was the first RX7 in the East coast to have a Power FC, the reason I know is because Eric Hsu himself came to Rampage Racing to show the unit to us. At that time, he showed me the Power XL software, and all I gotta tell you the software at the time was in Japanease, but Eric had told me that they were gonna come out with an English version as soon as it could get translated(mind you this was like 3 years ago). The things that that unit could do with that software is absolutely astonishing! Colored graphs, password to change a program, tracing, windows based(Japanease Windows), and the ease of changing maps was so easy, especially since you can see the entire tuning map there on the screen instead of having to scroll over like with the commander. There were other things that I can' t remember right now, but all I know is APEXi might not realize how much $ they're losing by not making this software available to the U.S. market Power FC owners, nevermind the advantage it would give to everyone with a Power FC, all they really gotta do is translate the language to english, even if we gotta use a Japanease Windows based computer, I'm pretty sure the Power FC owners would spring for a dedicated laptop just for tuning a Power FC. I hope they soon realize this, and will offer the software as soon as possible. BTW, what if someone got a hold of the software and got a Japanease Windows based computer? I'm thinking that it would work perfectly, only thing is you gotta learn Japanease really quick, but if someone really wanted to they could translate everything in the owners manual. Just giving some ideas here to the guys that have the resources to do something like this so that maybe you can someone can make it available to the Power FC owners in the U.S.

cewrx7r1

iTrader: (2)

This raises some questions about the requirements needed to change injectors sizes. If Ray does not use the POWER XL software then his changes are no different than what we can do with the maps. There has been some discussion that when the primaries are increased in size from 550 to 850 that the minimum
injector pulse width is too large and this causes an over rich idle no matter what is entered in the fuel cells. To correct this the setting for this minimum has to be changed. Thus Ray would not be able to do this.

There has also been discussions about if only the secondaries are enlarged from 850 to 1200, etc. Of course you have to change the values on the injector pulse timing correction map.
But are there other changes really required to the base maps
ands or fuel maps.

I have read different views and results saying yes and no. We need more precise info fore sure.

SPOautos

You could call XS and ask them about it. I dont know if the software is absolutly necessary to get a perfect tune or not but I'm sure if you have some spacific questions they would answer them.

In case you've never been thier, the web site is www.xs-engineering.com

And yes from all reports that I've seen Ray doesnt do anything different than what anyone that know how to tune can do with the controller.

Later

Jason

iTrader: (5)

XS said that when going to larger primaries it has to be fine tuned alot to get it right. When going to larger 2ndarys you only need to adjust the injector pulse timing corrections.

There are many things that can be changed with the XL software.
I was told that you can actually increase the number of cells for higher boost levels.

Jason

spyfish007

"I was told that you can actually increase the number of cells for higher boost levels. "

very interesting. . . .

RX794

I was using 950cc primaries in my Power FC and had NO problems whatsoever, it idled fine and drove perfect , all you gotta do is change the injector sizes on the commander. At the time I remember Eric telling me that he had a car with a Power FC that was using 1000+cc's for primaries with no problems, the reason he explained this to me was because the Power FC has VERY strong injector drivers, those of you out there with Haltech don't even come close as far as the strength of the injector drivers. As far as I know, the only 2 other units out there that have drivers like the Power FC are Motec, Tec2, and about 2 more other really "high end, $$$$$" units. Oh btw in my above reply I forgot to mention that one of the things that the PowerXL software can do with the 3D colored graphs is rotate them to different shift angles, so you can see how fuel, boost, and ignition compare to each other, just thought I'd throw that in.

Texas7

I called XS about tuning mine for 1200cc secondaries, and the guy on the phone said they had no maps for large secondaries with the stock twins!!! I don't want to give ray 300 clams for something I can do!!! We need answers!!

Mike N.

RecKleSs

Does anyone knows how much XS would charge to tune a single turbo setup? Do you think we are better off going to a shop that has the software or another rotary specialist that has a lot of knowledge about the Power FC? Would you basically get the same results? For example, going to Ray's shop instead of XS. I hope this **** makes sense.

SPOautos

Actually, I think XS has the knowledge and the software

I'd go to XS any day over Ray

Later,

Tim Benton

iTrader: (1)

For XS not to have maps for the stock twins and larger secondaries is hard to believe. That is one of the most common upgrades we can make, maybe larger twins or then larger single.


Tim Benton

spyfish007

I think XS likes to use the 1300 secondaries if possible and I also think they like 850s all around. But that is my own observation.