Shiv what are the limitations with the Xede , i know it makes a great management for stock turbo and upgrades , but how about went you are planing to upgrade to a larger turbo ??
I know that you are running on the stage 2 an upgraded turbo , can the Xed handle larger injectors ??? or are you running 8 injectors to make up the difference , and if so what intake manifold are you runing ???
Also what upgrades can you benefit by adding the Xflash to it ?
an can it handle the ruff or lumpy idle the 272/272 create ??

 

also how would you compare it to the uni chip being use on the APS unit (it also runs on DOS program )

 

If you are going to use a larger turbo, you will obviously need larger injectors. I'm sure that the xede can scale for those larger injectors. But that can lead to unintended side-affects in the ECU because it can only scale the MAF frequency, and not the injector output itself. The MAF frequency is used for more than just fuel delivery. It is also used to figure out the load on the engine. So if you start scaling it by large amounts, you can end up in a load cell that doesn't really correspond with the load on the engine.

A better way to do it would be with a flash to scale the injector output tables for the larger injectors, and then fine tune with the xede or some other method. That is, if you want to stick with the stock ECU.

 

The ultimate limitation is that it is a piggy back computer at the mercy of the stock ecu, as opposed to a true stand alone unit.

 

On the Stage 2 cars, we're combining the XEDE with an XFlash (or XEDEFlash to be more accurate). The ECU is mapped to handle the revised boost, rev and speed limits as well as compensate for the larger injectors. In fact, the Stage 2 car can run without the XEDE in low boost mode (the factory fuel and timing maps get maxed out just above 1.7bar of boost). Combined with the XEDE, ignition advance resolution gets inproved by a factor of 10. Also, the load axis gets expanded as high as you want to go since the XEDE is no load reference limited like the stock ECU. So to answer your question, I don't see the XEDE (when combined with the XEDEFlash) to give anything up to any stand alone when it comes to WOT power mapping. Partial throttle and drivability characteristics are also hard to beat. It does have the ability to drive additional injector as well but I haven't found that to be necessary yet in any application. As for idle quality with cams, I make all the adjustments in the factory ECU, not in the XEDE.

Hope that answers you question...
Shiv

 

thanks Shiv , so the best thing would be to get the Xede/Xflash and then have it flash and tune again went upgrading with the larger turbo .
Cause right now i have a turbo back and i have the cams 264/272 just waiting to be install with an ecu upgrade. after i do a FMIC i plan to upgrade to a larger turbo down the road , what size of injectors are you running on the stage 2 ??
Also do you have a different map for the cams on the Xede or if theXede/Xflash is purchase do you flash the ecu for that type of program . ??