The Tuning Thread- EJ Motor

[16 cycles]

Phaze, a 3 port ebcs may also help - as from my exp - see graph...a perrin plug and play helped to smoothen the power out put considerably (this was in 2007 thereabouts...so there may be better tech /other options)

[phaze]

Yea Ive read about the 3 port ebcs. I currently have one to install when I'm done doing the other minor mods.

[nervewrecker]

Lots of reading and information. Currently doing all my upgrades myself and hoping to do my own tuning....we have built pc computers using the double din in vehicles, a 7" touchscreen monitor and a home built pc that's small enough to fit under a car seat in a case with fans to cool. The idea was to have a "car pc" that had many other additional functions besides OBD connection for logging, playing music, watching movies, rearview camera, gps, we had all those functional. tuning was the next step without the need for a laptop. Even had ideas of additional sensors on the car for rain sensors unlocking the vehicle and such. With a car pc the options are limitless....just an idea whilst you setup your screen for logging. Not too mention limitless USB connections.

There is a guy on tuner with a Car PC and had sent me a link to a forum with other Car PC guys. I think it was the tuner chiney and the link in the pc tech and gaming thread.
It crossed my mind to go with a double din type Car PC but wasn't sure how customs would class it. Had a pioneer 80prs so used that.
The thought crossed my mid to use a tab with the bluetooth adapter like soundstream_626 did and buy pirate JBL MS-8 unit but I stuck with the pioneer deck till next year when im going to start tuning. *fingers crossed*

[16 cycles]

full race has black friday sale till 27th

ETS has a sale as well...

fyi^

[Lance]

Not sure I could afford FullRace stuff even after sale ..lol

FP has a sale on as while. I bought a turbo a few weeks ago.

[16 cycles]

nice @ FP stuff....in for the updates on that...

side note - is there a way on the wrx/sti ecus to set the CEL light to blink after 'x' amounts on knock?

I've seen on other platform the CEL would blink slow for >3 counts of knock and very fast for >10 counts...akin to a warning light once knock over a certain threshold is detected...

[Lance]

I think there is.

Ryan one told me that he had a map that would do this.

[Lance]

nice @ FP stuff....in for the updates on that...

It initially was suppose to be just a turbo purchase that I would put in storage and install at a later date (FP's price was too good to pass up).

I ended up getting the new Journal Bearing FP Green HTZ with the EWG setup.

The upgrade has since ballooned into something more comprehensive and destroyed my initial budget.

I'm moving back to single scroll so I had to get a new downpipe, headers/up pipe, EWG and injectors. Hopefully I can get it installed and tuned in January. Not sure what power to expect yet.

[Aaron 2NR]

nice @ FP stuff....in for the updates on that...

side note - is there a way on the wrx/sti ecus to set the CEL light to blink after 'x' amounts on knock?

I've seen on other platform the CEL would blink slow for >3 counts of knock and very fast for >10 counts...akin to a warning light once knock over a certain threshold is detected...

Yup the group N map would do it

[16 cycles]

thanks for the insight Aaron

Good luck with the install and tune Lance..

gonna research Group N maps now...

[16 cycles]

importance of a remap when changing out iwg actuator arm...

blue shows the un-tuned pull
red shows after a remap - literally right after the first un-tuned run....

[Aaron 2NR]

yeh it makes a hell of a difference.... did a tune with the kinugawa turbo last week, meth line blew out so we didnt get to finish up...
came with a 14psi spring in the actuator so it wasn't holding the boost we wanted, modified my forge actuator to work but didnt realize i damaged the diaphragm like a year and a half ago LOL

ordered a rebuild kit as well as a 24psi spring for it....

this is a comparison vs a Dom 1.5



we threw in 3 gal race gas to half tank premium, did no changes to the map, meth line disconnected... (red graph)

[16 cycles]

that 007 map seems lovely - alot of area under the graph...

thanks for sharing !

[TheBoostLord]

that 007 map seems lovely - alot of area under the graph...

thanks for sharing !

was that green pull a vf37?

[Aaron 2NR]

yeh the green graph was my stock turbo use to hit 24psi and drop down to 18/17psi by 7000 RPM.


the new turbo has a lot more useful power from 5500rpm which would be useful for wallerfield circuit and time attack, whereas the VF did its job for ARC. still haven't felt it on the road because of the actuator. should retune next week or at least do a road tune and hit the dyno again next year...with the new actuator, boost should come in a lot sooner as well...

[16 cycles]

^ race gas was MS 109?

trying to get a feel for the final RON given the data above..

[Aaron 2NR]

C16. The mixture honestly wasn't that much of a difference, cuz when I reconnected the meth line a few days after, arf dropped by 0.1

[Lance]

Afr isn't the only factor in that equation.

[Lance]

Untouched tune for 2 years. This was the map I flashed on my car just before I left the country. I left in a hurry and forgot to even set the rpm/load ranges.

It seems to have held up reasonably well over the 24month period.

My father changed a few parts over the period and the tune needed to be adjusted to compensate. I assumed that the modifications would have minimal effect on the tune/safety so I left it as is.

The fuel trims are off a bit. I used to be within the +/- 5% range. I attribute the increased variance to the FMIC I had installed a year ago . Without any modifications to the tune the turbo would have spooled up slower and it might have thrown off my a/f ratios (i.e richer). Hence the cuts on the trims.

I also installed an HKS catback which replaced my 3" mid pipe/ stock axel back hybrid (about 2 months ago). I'm now experiencing slight over boost from my target boost of 20psi. I'd probably attribute this to the free-er flowing exhaust. It's still safe on the a/f side even after the over boost so I won't address this until after the turbo swap.

[castortroy]

Beautiful!

[JMlegacy]

Getting ready to install and tune my homemade water injection controller.

So far this is what I have:

Valve pulsing to vary water injector duty cycle (actually bought the aquamist valve until i find a cheaper alternative).

programmed via computer usb, pulsing at 25hz, can vary between 2%0 and 80% duty cycle.

Failsafe:
1. line pressure (sensor installed near the nozzle)
2. low level.
Switches off the wastegate solenoid when either is detected

precaution:
nozzle and tank location filter. Would have to check nozzle location filter ever oil change or so, as a blocked nozzle would show an OK pressure, defeating purpose of the failsafe.


Here is a little video of it, bench testing.
https://vid.me/Kg4W

Old video, but so far I've included display of MAF voltage and prob change the percent # to boost PSI

[JMlegacy]

His estimates regarding the increase in cylinder pressure vs timing advance is very interesting. Many people tend to underestimate the implications of 1-2 degs of aditional timing.

The power trade of between EWG VTA vs Recir dump is also very interesting.

Nice post.

True.
Lads, you may want to visit http://blackartdynamics.com/Engine/Engi ... namics.php
For the Legacy GT 2004, the intake valve closes between 45 and 60 degrees ABDC, becasue of AVCS

[16 cycles]

Subd for the fp upgrade...saw it in person as I was doing some maintenance

[Lance]

Josh told me you passed through.

That 84mm Compressor housing and FP's oil line modification are PITA to fit in stock location.

The guys finally got it in after some massaging and slight modifications.

Scaling idle and closed loop currently and making sure everything is good before WOT tuning.

[16 cycles]

glad to hear everything went in and thanks for the heads up on fitment if anyone else might be going that route....good luck with the tuning....

[Ragnarok]

ImageUploadedByTriniTuner1450297688.188246.jpg

Untouched tune for 2 years. This was the map I flashed on my car just before I left the country. I left in a hurry and forgot to even set the rpm/load ranges.

It seems to have held up reasonably well over the 24month period.

My father changed a few parts over the period and the tune needed to be adjusted to compensate. I assumed that the modifications would have minimal effect on the tune/safety so I left it as is.

The fuel trims are off a bit. I used to be within the +/- 5% range. I attribute the increased variance to the FMIC I had installed a year ago . Without any modifications to the tune the turbo would have spooled up slower and it might have thrown off my a/f ratios (i.e richer). Hence the cuts on the trims.

I also installed an HKS catback which replaced my 3" mid pipe/ stock axel back hybrid (about 2 months ago). I'm now experiencing slight over boost from my target boost of 20psi. I'd probably attribute this to the free-er flowing exhaust. It's still safe on the a/f side even after the over boost so I won't address this until after the turbo swap.

Thx lance it still looks good.

[Lance]

glad to hear everything went in and thanks for the heads up on fitment if anyone else might be going that route....good luck with the tuning....

Thanks man.

Still tuning. Might be some time before its dialed in properly.

The car was converted to run a full speed density tune so I'm just sorting that out with the tuner.

We have dialed in closed loop reasonably well. Still fixing some minor issues but the warm idle is stable and cruising is smooth. The fuel trims are generally in check.

WOT pulls soon.

[TheBoostLord]

how does daily driving DS compare to MAF based fueling?

[Lance]

how does daily driving DS compare to MAF based fueling?

Honestly,

I can't tell the difference (generally). If I had to be picky, I would probably say that the idle on the MAF based tune was a little more stable than on SD. I hope we can get it on the same level with some tweaking though (a cold start currently gives me about 30-40 secs of afr oscillation). Cruising/light load is pretty much dead on.

While some will argue that on closed loop conditions a properly dialled in SD tune is just as good as a MAF based tune. I think there is a general consensus that its easier to get it right on MAF (hence the reason why a lot of people run a blended setup.

[phaze]

Jm legacy what sort of failsafe you got for your home made meth kit?