ECUtek results [Archive] - Mitsubishi Lancer Register Forum

ECUtek results

chhh1
17-12-2007, 17:59
Well took my evo VIII fq300 upto Chris at Race Solutions last friday for a remap,
mods are:
decat
k&N panel filter
Walbro fuel pump

he gave it a run before to see what she was and couldnt believe it was only 272bhp atf standard!this was also with the decat and k&n panel filter fitted.also ran a diagnostics check and nothing showed up.
He explained that it was runnig really rich and not boosting as freely as it should,
so he continued to fit the fuel pump and remap it,
the result 334bhp and 295lb of torque also sorted the fueling out.And while i ntoiced a huge difference in mpg and power and overall driveability i must say i was expecting it to make around 350bhp :rolleyes:
Chris said it may be the restrictive downpipe preventing the spool up of the turbo.

What could have caused the car to have such low bhp and runnig so rich to start with?
And is there any thing i should check?

What about the overall figure is after remap should i really be seeing more?
And again anything i should check up on?
Any help/comments appreciated.

Ryan!!
17-12-2007, 18:25
Hi,
I was the guy in the silver evo iv who was there in the morning,nice looking viii btw,rs's rollers do tell the truth so i guess at least you know there is a issue.Normal remap figures for a e5-8 would be around 350bhp 330lb/t. This would be with a full 3" system , induction kit and decent plugs though. I guess 334bhp is pretty good without those mods,torque is a little low,perhaps he had problems building boost quickly=less torque.
Could you post up the graphs and i'll have a look for you.
Here is my graph which should be pretty comparable as it was run just before you.I was there just to see what power my latest mods were making so not mapped by Chris.cheers Ryan
The blue lines was the run,the red line was a older run.
http://img.photobucket.com/albums/v302/ryan_s3/newdynog1.jpg

chhh1
27-12-2007, 09:10
Finally got round to posting up my graphs from the rolling road,just to recap Chris said it was mega rich which it shows and that it wasnt boosting as it should,thought it could be the turbo downpipe being a bit restrictive!
here they are..

Before remap,decat,pump...

http://i86.photobucket.com/albums/k103/chriz2006_2006/car124.jpg







And final results...

http://i86.photobucket.com/albums/k103/chriz2006_2006/car122.jpg

http://i86.photobucket.com/albums/k103/chriz2006_2006/car123.jpg

http://i86.photobucket.com/albums/k103/chriz2006_2006/car120.jpg

Right what you think?

What could have casued the running rich and poor bhp/torque on the standard run?

youngsyr
27-12-2007, 09:23
Well, it certainly looks like your boost control isn't great. A "normal" boost graph profile looks like this:

http://i138.photobucket.com/albums/q280/youngsyr/BIGDJGraph1.jpg

Forget the numbers, but you should have a peak when you come on spool, which then drops and holds and certain value (the boost you're aiming to hold).

Your boost is not very constant, so it might be worth looking at this area to improve power.

I'm surprised Race Solutions couldn't diagnose the problem, it is their business, after all???

PS: I didn't have any problems with an VIII GSR spooling with my stock FQ downpipe, and I haven't heard of anyone else complaining about it, so I doubt that's the issue.

chhh1
27-12-2007, 10:49
Like i said thats all Chris at RS said it could be was the standard downpipe?

Also commented that there was nothing else he could find wrong woth the car?

Is my boost pressure up to what you think it should be for a fq300 with these mods or should it be a little more/less?

What should i be looking at checking to diagnose a possible fault?

youngsyr
27-12-2007, 17:28
Originally posted by chhh1
Like i said thats all Chris at RS said it could be was the standard downpipe?

Also commented that there was nothing else he could find wrong woth the car?

Is my boost pressure up to what you think it should be for a fq300 with these mods or should it be a little more/less?

What should i be looking at checking to diagnose a possible fault?

I'm not a mechanic/tuner, but there are 100s of Evo VIIIs running with the FQ (HKS) downpipe with no issue with boost control, so I can't really see how that could be the problem???

Your boost numbers overall look ok in terms of absolute values (i.e. ignoring the actual shape of the line on the graph). You seem to peak around 1.5 bar which is generally considered to be safe (VIII FQ 330s peak at around 1.55 bar on the stock map), but will give you good gains over the stock FQ300 map. However, if you look at your boost graph it looks like the turbo is pulsing, rather than holding a constant number.

This could be caused by any number of things, and even if I had any mechanical knowledge, diagnosing it over the internet would be very hit and miss.

Things it might be include your boost control solenoid, your wastegate actuator and a few other things, but if RS have checked the car over, and come up with a blank, I'm not sure what anyone on here can do to help. I guess your best bet is to try another tuner to see if they can diagnose the problem.

chhh1
27-12-2007, 19:28
think ive found the problem... take a look at this
https://www.lancerregister.com/showthread.php?s=&threadid=182465

youngsyr
27-12-2007, 19:37
Originally posted by chhh1
think ive found the problem... take a look at this
https://www.lancerregister.com/showthread.php?s=&threadid=182465

Nice work, that sure as hell isn't going to be helping the situation and hopefully should be a relatively easy fix. :)

youngsyr
27-12-2007, 20:11
--Edited--- Now posted on the "found the problem" thread.

chhh1
27-12-2007, 20:22
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