Missing 20 whp from a 300HP car is significant.

Missing 20 whp from an 800HP car is negligible.

Seeing how i'm stock this sucks for me more then the fellow going for the gold with the 800HP super drag monster.

 

yeah i got a 2012 Evo GSR went to Sean Ivey for a tune after a long tuning session on the dyno sean did tell me for some odd reason my car is down on power compared to other evo x he tuned in the past, he said my car seems weak with alot of knocks ( i even went back again for a retune with a fresh tank of gas) but there were still knocks so he said i cant make 10-15whp more

My car had 2000miles when i had it tuned with conventional oil ! i wonder if conventional oil stopped me from making a few more hp? or am i just part of the 2012 weak evo club

Mod:
ETS intake
ETS UICP
ETS V2 Quiet
GS 3port

326whp/309wtq 71F with 70%humidity

 

What is your production date?

 

I saw in another thread he had bought it sometime early march. So I'm gonna guess it has a 2012 build date.

 

I bought mine a couple weeks prior (end of Feb) and mine has a 2011 production date. I'm just wondering if the production dates make a difference. Just seems weird that some 2012's are down in power and then some are not.

 

i really hope mitsubishi is aware of this

 

We are seeing this on some 2012 to 2011 MY cars.

Sean

 

I have seen some Sept 2011 actually be 2011 and not 2012 as it would be normally. I am not sure production date really has anything to do with it but if it matters the IXs were stronger in earlier months than later months.

It has been a pretty much even split on MR vs GSR.

About this comment-
I agree that percentage wise its more important to get the 20 on the car that makes 340 than the one that makes 830. However when the car is missing 15-20 at 346 on a stock turbo and still makes 492 on a bigger turbo with no apparent power loss mod for mod at that level I am willing to not worry about it. The issue that presented itself then was the inconsistent behaviour of the ECU compared to earlier years. I benchflashed it into a 2011 and will have it back on the dyno to see what difference if any it makes.

 

I've called 2 shops recently, one of which was AMS...doesn't get much bigger than them and neither shop has seen any power variance between 2012 models and 2011 or 2010.

They said they are unaware of a difference

 

Like I said as well I talked to RRE and they had also mentioned they hadn't noticed a difference.. Maybe that's because they don't feel its a big deal. The guy there had told me that in normal conditions they can vary 10-20 whp so maybe they just aren't paying close enough attention.

 

Your findings with the 2011 variable should be very interesting.

I wonder if problems or differences are why COBB is taking their sweet time to roll out 2012 AP tunes that are final or non beta builds.

 

English is a pretty well reputed vendor and they have seen an issue. Without knowing the details of the other shops vehicles, we can't rule out that there was a geographically dispersed "bad batch" or anything like that.

If English wasn't a good shop, then it could be easily written off as coincidence or ignorance. However, that is not the case. I am one of the lucky recipients of one of these poor vehicles.

 

The way I see it is I know what they should be doing and they dont do measure up. Since they dont do what I think is average I started this thread to see if anyone else had noticed. Apparently very few others have noticed them being down so it is what it is. They do weird things on larger injectors at higher power. I have that fixed now that I swapped the 2012 to an earlier ROM. I will have a more or less BPU car here tomorrow to test both ways and see if its ECU related or if by backdating all I gain is consistency.

 

I posted on EvoXforums but there hasnt been any discussion, just people reading it-

http://www.evoxforums.com/forums/showthread.php?t=66683

Here is what you are waiting for though-

 

just tuned a 2012 GSR- (pulling it off the dyno now)

I did not get to baseline it- as it already has some parts on it-

basic bolt ons- pierburg ebcs- ams exhaust, ams fmic, amc ic pipes, and ams 3" intake-

car made 311whp/301 wtq at 25.6 psi tapering down to 18.4 psi-

it was ok on power- but the motor didnt seem to like as much timing as the 08-11's do here....

maybe 1-2 degrees off- normally I see the X's do some sporadic Knock events and so forth, but you have to be pretty far off on timing/afr to get a constant knock count-

this 2012 would ride some 1-2 counts for a bit unless the timing was dropped- COULD be fuel, but most of the cars in the NE are fairly consistent on fuel.

Just a little info-

cb