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Old 03-04-2012, 04:28 PM   #1 (permalink)
YoshiFD3S
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Join Date: Jan 2011
Location: San Diego, CA
2011 Sonata 2.0T Limited 1994 Mazda RX-7 w/ 2JZ Swap 2004 Mazda RX-8
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Thumbs up PowerAxel ECU Tune/Reflash - DYNO! :D



Took me a minute to find the actual 'Dynojet RunViewer' program....

Here you go, guys.


http://i43.photobucket.com/albums/e3...xelECUTune.jpg

Miguel will have to be the one to clarify as to whether or not the custom tune that your guy did will actually be the same tune that you guys are going to WANT to offer.

My car provided some challenges to the tuner, mainly because it was the first one he had worked with that had an intake and cat-back exhaust....coupled with my BOV "mod" which we discovered caused some significant boost issues at mid-RPM's...I'll talk about that in a second..

At least with this dyno, though, everyone will be able to see the kind of gains that were made.

Overall the experience was fun, and I ended up purchasing the actual handheld device. My car has a newer ECU revision on it from a recent trip to the dealership where they updated it.

Essentially, with the handheld device I can press a single button and it will return it to stock, or I can reload the custom tune. There is also space for one more additional tune, and the device can be plugged into a PC with the appropriate software, where further adjustments can be made.

Also, with that, when/as PowerAxel releases new tunes, you can essentially download the tune to the handheld device and then run it on your car.

The handheld I purchased also has bluetooth capabilities. Once a phone application is made, it will essentially be similar to a "Torque" style app where you can view live data on the car when you have the unit plugged in.

So yeah...

Am I happy? Heck yeah. The huge increase in power is very noticeable, and yet I STILL got 33-34 MPG's on my drive home, and that was WITH occasional full-throttle bursts.

Unfortunately, let me state very clearly that...

IF YOU ARE RUNNING THE STOCK INTERCOOLER PIPING AND BLOW-OFF VALVE....MAKE SURE THAT YOU KEEP THE BLOW-OFF VALVE RECIRCULATED.

!!!!NO MORE BLOW-OFF VALVE "MOD"!!!!


I was one of the first couple people to do the "mod" and as much as it sucks, it needs to be recirculated.

Essentially, the whole "shuttering" sound that you will hear IF you do/have done the mod, is in fact the wastegate fluctuating the boost level. It was clear as day on the other dyno graphs where the power was incredibly shaky in the mid-RPM's, until the shuttering stopped.

The actual peak HP/TQ gain was negligible, but the mid-range HP/TQ difference was obvious when you're talking about fluctuating boost versus a solid 18-22PSI.

My next plan is to purchase some HKS performance Nissan 370Z spark-plugs. Apparently they fit right in, and their temperature range actually will actually make a horsepower/torque gain.

After that, I'm going through with my plans of upgrading the FMIC and getting a Synapse blow-off valve. Hopefully I'll be able to have THAT vent atmospherically with no issues. I'm sure there are others who have already upgraded their FMIC and BOV, so I think it's okay for it to vent atmospherically once you upgrade from the stock FMIC and diverter-valve ("BOV").

So yeah, there you go guys.

Questions?
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* DAILY DRIVER: 2013 Cadillac ATS 2.0T - Not gonna stay stock for long! Stay tuned!
** WEEKEND CAR: 1994 RX-7 w/ 2JZ Swap - 3+ Year Project and still going...
*** FAMILY CAR: 2011 Sonata 2.0T - 300+hp/30+MPG FTW.
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