Member Profile - OuTLaWOwnz

[OuTLaWOwnz]

Edited original post with the new chart from ASGs attempt to fix the problem. Still under-achieving on specs and turbo still late but it feels much more consistent now. I can live with it until I get a Kido tune.

[OuTLaWOwnz]

Added Perrin equal length exhaust headders, Grimmspeed flexible up pipe, DashDAQ and Zeitronix ZT-2 wideband O2 sensor. Getting Kido tune soon. But now suddenly I have some sort of major boost leak. Between -6psi and -9psi vacuum during idle and between 5psi and 8psi max boost full throttle. Is supposed to be -20psi vacuum and 17.8psi max boost. This is never ending. Anyone know a good mechanic in Perth equipped to pressure test the intake system and look for boost leaks? ASG and STechnic dont have equipment to test for leaks. I want them all found and sealed once and for all. Just fixed a leak a few weeks ago.

[bigBADbenny]

Checkout the pre tune checklist for DIY boost & vac testing technique.

[OuTLaWOwnz]

I read the RomRaider guide already. My DashDAQ cant see A/F Correction or A/F Learning. I've taken the engine cover off and check some of the hoses but cant see anything obvious wrong. Its hard to see everything with the intake manifold in the way. Every couple of days I get a check engine light for "P0171 - System Too Lean". Maximum Motor Sport said they might be able to check it out for me although they dont have any pressure testing gear either. They're a bit reluctant. Something about a pure diagnostic job like this is difficult to bill, especially if they dont find anything.
Although it's probabbly not related to the problem, I did notice my turbo inlet pipe is quite squashed near the bend. Where it passes under the intake manifold it goes very oval in cross-sectional shape rather than round. Is that likely to cause restriction?

[bigBADbenny]

So fill a spray bottle with dish wash liquid and water spray the zorst flanges from the turbo back on start up, then do the turbo outlet to throttle body connectors with some one revving the car. The bubbles are obvious.

Then make a bung that fits the turbo inlet hose entry, tap a regulated air supply in and give it 10 psi with the oil cap off.
Do the spray again

Or just hook up a smoke machine to that inlet.

With your investment in mods a tactrix would be an appropriate tool to own IMHO
I'm researching if Torque App can see the Learned parameters...

[OuTLaWOwnz]

Took the engine cover off again tonight. Managed to jam my head and a torch in the engine bay at just the right angle that I could see under the back of the intake manifold. On close inspection it seems that the blow off valve return pipe has completely blown off the turbo inlet pipe. So theres basically a 1" hole in my turbo inlet pipe. I'm guessing thats my problem? This Tomioka Racing turbo inlet pipe is hopeless. Its completely squashed out of shape. It doesnt seem to have any wire reinforcement in it and as a result the only part of it that is still round is the part stuck on the inlet of the turbo. Gonna replace it with a Perrin. I'll get some perrin t-bolts while I'm there.

[bigBADbenny]

Bummer! But at least you found the issue or one of them
We used the handle of a very large screw driver to seat that pipe when doing the inlet install.
It's a challenging job to get right...

[OuTLaWOwnz]

I can see how the hole in the turbo inlet causes loss of vacuum but how does it cause loss of boost? I'm starting to worry the inlet might not be the only problem. I'm also concerned about the amount of unfiltered air thats gone through my turbo. I've seen what happens from running with a bad air filter. Running with a hole in the inlet must be as bad.

[bigBADbenny]

My understanding is that anything that causes a discrepancy between what the afm is metering and what is actually reaching the turbo or inlet manifold is counter productive.

[OuTLaWOwnz]

So Matt did a road tune on my car on Thursday. The ASG tune was a joke. My boost control wasnt working, couldnt get 100% throttle from the pedal, cam timings were terrible, just to name a few things. Huge difference with Matts tune. Power delivery is much better and overall torque seems to be increased. He added launch control and flat-foot shifting to the ECU too which is impressive. Unfortunately we could not dyno tune the car and fine tune for more power. We got on the dyno but couldnt get past 60km/h in 5th without the clutch shrowding the car in smoke. So now I'm up for a new clutch and I have to wait for Matts next trip to Perth for the final dyno tune.

[bigBADbenny]

Congrats on your new car

Interesting about the clutch slipping in 5th.
How many K's on that clutch?
Why run it in 5th on the dyno???

I just ask because my slipping clutch issues are varied:
Its got high K's for sure... 190 odd!
User error not getting off it quick enough, riding it etc.
The pressure is fairly soft and doesn't exactly push my foot off it.

Yet if not abused its still usable.
I get the feeling the requested torque values in the tune might have something to do with the slippage, I but I could be wrong, so very wrong.
The whole DBW thing is still a bit of a mystery to me...

At any rate, I get to find out for myself, again, soon enough

[paggaz]

Great feedback on the tune.

What sort of clutch are you looking at to replace your current one? OEM spec or an upgraded one?

[OuTLaWOwnz]

Congrats on your new car

Interesting about the clutch slipping in 5th.
How many K's on that clutch?
Why run it in 5th on the dyno???

I just ask because my slipping clutch issues are varied:
Its got high K's for sure... 190 odd!
User error not getting off it quick enough, riding it etc.
The pressure is fairly soft and doesn't exactly push my foot off it.

Yet if not abused its still usable.
I get the feeling the requested torque values in the tune might have something to do with the slippage, I but I could be wrong, so very wrong.
The whole DBW thing is still a bit of a mystery to me...

At any rate, I get to find out for myself, again, soon enough

Its got 112000Km on it. Not sure why it was in 5th. We were calibrating the dyno at the time. Clutch should not really slip at all once engaged. Replacing it with an Exedy Hyper Single VF imported from Japan.
http://www.exedy-racing.com/racing/en/p ... le_vf.html
We did manage to give it half a run before the clutch gave in. Tried both the ASG tune and the new tune and the new tune showed almost 20% improvement over the ASG tune. Couldnt get past 4000rpm tho so results are unreliable until I replace the clutch and get a proper full run done.

[KiDo_Tuning]

90% increase in torque at 2500rpm was definitely not helping the clutch grab 20% increase at 3600rpm on less boost was my favourite part of the improvement in driveability though!

5th gear was closest to 1:1 ratio on a hub dyno

You will love the Exedy too!

[OuTLaWOwnz]

90% increase in torque at 2500rpm was definitely not helping the clutch grab 20% increase at 3600rpm on less boost was my favourite part of the improvement in driveability though!

5th gear was closest to 1:1 ratio on a hub dyno

You will love the Exedy too!

The difference is night and day. AFR is much more stable now too. Although, I could do with a little more torque between 2200-2500rpm in high gears to aid in highway overtaking. Next time I guess.

I'll have a final dyno figure soon too as my insurance company is making me to dyno the car so they can figure out the power increase and rape me in the wallet for it. Better than a cancelled policy I guess.