MRT who tune X with ecutek in australia have rahter dissapointing gains compared to you guys.. Why is that? not enough skill? Now i know stuff all about tuning so i hope you fellas can shade some light on it for me hehe, the only thing i can see is that boost is increased by 1psi.

Anyways below is the article from one of the websites, they have full story at http://autospeed.com/cms/A_111048/article.html

As this dyno graph shows, power at the hubs (MRT use a dyno that attaches at the wheel hubs) rises from 180kW to 202kW, a 12 per cent increase. However, that power increase isn’t just at the top-end – there’s good improvement from about 3250 rpm.



Peak torque rises from 340Nm to 412Nm, a gain of 21 per cent. However, the revs at which this torque is developed effectively stay the same – there’s no earlier development of boost.

So what changes are made to the ECU mapping? And, for that matter, what changes are able to be made? Ben Taylor of MRT says that more than 70 per cent of the original settings are altered.

“The factory OEM tune is a little rough around the edges,” he says. “There’s too much ignition timing advance at higher rpm to suit our 98 RON fuel; quite rich air/fuel ratios at higher rpm (dipping into mid 10’s!); the inlet and exhaust cam timing maps are far from optimum; and the boost control is too aggressive in some areas of the rev range and not enough in others.

“About the only parameters that aren’t changed are those relating to idle control, cold start and knock sensitivity.”

Interestingly, increase in peak boost is quite small – the standard cars use 21 psi at max torque, tapering this off quickly as revs rise. The MRT tune sees 21-22 psi at peak, decreasing to 17 psi at the redline.

“Turbo efficiency really dies in the bum at higher rpm,” says Ben. “I suspect exhaust turbine back pressure and we’re currently working on a potential upgrade.”

“Trying to run more boost actually gets you less grunt as the increased temps mean you have to run lower ignition timing advance to avoid knock issues.”

 

It's really difficult to say what is wrong, if there is anything wrong, with the tune without looking at the full log (afr, boost, ign timing, etc) or looking at the actual maps. The boost does seem a little low since most tuned Evos peak around 25-26 psi or so, that alone should give you a little more torque. I can't really say anything else since there is not enough info, anything else would just be guessing.....

 

Here is baseline dyno of my X. Think its same as US?

 

Thanks you made it bit more clear for me, i guess i just might have to get my car tuned there and then i can supply afr, timing.. But then again im better of getting sumthing like Zchip or AP?!.. Just a basic ecutek tune here that has 12% gain costs $1,317 USD.

 

I would say to go with the AP and see if a vendor or shop can make a custom map for you.

 

I rest my case ..

SiC .. I told you

 

“Trying to run more boost actually gets you less grunt as the increased temps mean you have to run lower ignition timing advance to avoid knock issues.”

did he try to increase the boost? It's common knowledge that more gain is possible and it also sounds like he wants to sell you an exhaust.

 

I think your spot on mike100,
They were the first to make a full TBE exhaust for X in australia..
This is what they said after inquiring about the exhausts prices..

" The final pricing on our exhaust is yet to be released and can beordered with or without the dump off the turbo - Local testing has foundwith tuning the gains are there but simply throwing the exhaust on thecar there is nothing measureable. Best to keep an eye on the website for details but to give you an ideaour own Project EVO 10 has already got 40KW above standard at the wheels with complete exhauts and ECUTEK upgrades only. "

40kw WOW!! at cheap price of 3090$ USD.

 

Does anyone know if it's okay to have an Australian EvoX's ECU flashed with a US flash, what issues exist other than the 98RON fuel we have here; will using 98 with 91/92... be a major problem. Surely people have encountered similar situations with Japanese imports in the US?

 

^You might want to search and if you don't find your answer start a thread in the ECU subforum.