Sydney Dyno Day (Annual) - April 17th

[Tim]

what was the go with the RS6s!?

Milka – Audi Rs6 – 327.6 – 325.7

Nick – Audi Rs6 – 257.4 – 251.3

What does the top one have that gives it an extra 70kw?!!

[Pullstarter]

Stage 3 would be good Johan, however, I fear that and the resultant divorce may be more than I can afford.

[tommymac]

what was the go with the RS6s!?

Milka – Audi Rs6 – 327.6 – 325.7

Nick – Audi Rs6 – 257.4 – 251.3

What does the top one have that gives it an extra 70kw?!!

He had a fair bit of work done, complete tune so i heard and had both his coolers rebuilt with thicker cores etc etc so yer its a nice machine,

[kinezo]

please keep in mind that he afr probe is not place correctlyin the exhaust, as mk5s have got a twin pipe exit. This causes afr not to be correct until ur going at it at WOT. The reason being is the 2 exit pipes of the exhaust causes 50/50% distribution of exhaust gases, and if you put a probe there it can push the flow back through the other pipe which will give you false readings.

J measured the lambda while I was in the car as I have vagcom on my car pc. Can tell u everything was **** hot( in a good way)

Later that day I pushed the motor all the way to 27.6psi without any trouble. Now gotta go back to the drawing board and see how to make the boost curve in the tune to suit where possible to yield most power.


Note. Typed on iPhone

I'd be more concerned about that red Mk5 GTI with multiple full boost runs at greater than 20:1 AFR. I did walk away from that one LOL. Damn strong motors.

[kinezo]

K04 King of Australia! hahah just joking

Not for long my friend, you may have won the battle today but I will get my victory in November!

[DubSteve]

please keep in mind that he afr probe is not place correctlyin the exhaust, as mk5s have got a twin pipe exit. This causes afr not to be correct until ur going at it at WOT. The reason being is the 2 exit pipes of the exhaust causes 50/50% distribution of exhaust gases, and if you put a probe there it can push the flow back through the other pipe which will give you false readings.

J measured the lambda while I was in the car as I have vagcom on my car pc. Can tell u everything was **** hot( in a good way)

Later that day I pushed the motor all the way to 27.6psi without any trouble. Now gotta go back to the drawing board and see how to make the boost curve in the tune to suit where possible to yield most power.


Note. Typed on iPhone

How can you say that though the same would be for a mk3 and mk4?

[kinezo]

Lucas @ eurospeed should be able to tell you what he did.

[QuickA4]

I'd be more concerned about that red Mk5 GTI with multiple full boost runs at greater than 20:1 AFR. I did walk away from that one LOL. Damn strong motors.

That car does not run 20:1 afr.
either dyno sensor came out, or is not reading correctly as that car has a twin rear exhaust pipe, r32 style that sensor only reads in one pipe and may not ready correctly.
That car runs afr in the 11:1.

And yes todd is a carefull dyno operator, and if a car does run lean, he will about the run, anyone that has been to past dyno days would have seen him abort runs in the past.

[parso_rex]

Have you logged it with another analyser pre-cat in a secondary bung just to check. I understand what your saying but I've never seen such extremes before. Does that muffler by chance tend to push more exhaust through the other hole by chance.

[kinezo]

yes i used the Vagcom O2 lambda reading to log what my AFR is is like. currently its sitting at about 0.8 which is perfect.

Todd himself has also quoted that t whenever he has dyno'd a golf or a car with twin exhaust he never gets an accurate AFR due to this very reason.
my exhaust splits into a Y pipe which in theory is a 50/50% diversion

Have you logged it with another analyser pre-cat in a secondary bung just to check. I understand what your saying but I've never seen such extremes before. Does that muffler by chance tend to push more exhaust through the other hole by chance.

[Golf Loon]

yes i used the Vagcom O2 lambda reading to log what my AFR is is like. currently its sitting at about 0.8 which is perfect.

Todd himself has also quoted that t whenever he has dyno'd a golf or a car with twin exhaust he never gets an accurate AFR due to this very reason.
my exhaust splits into a Y pipe which in theory is a 50/50% diversion

A few cars seemed to have suspect AFR readings at this event.

[Bug_racer]

A few cars seemed to have suspect AFR readings at this event.

a mk5 with a ko4 would not be running 200 kw atws+ with a/f ratio of 20:1 . In fact after 5 or so runs it probably wouldnt be able to idle , if it could run at all .

A car with poor idle , poor running and down on power it would make sense the a/f was out . Who knows how its been tuned ???

[DubSteve]

a mk5 with a ko4 would not be running 200 kw atws+ with a/f ratio of 20:1 . In fact after 5 or so runs it probably wouldnt be able to idle , if it could run at all .

A car with poor idle , poor running and down on power it would make sense the a/f was out . Who knows how its been tuned ???

What about Sloths car? Thats a K04 running at like 200kwatw?

[Golf Loon]

A car with poor idle , poor running and down on power it would make sense the a/f was out . Who knows how its been tuned ???

Yup I agree. If you are referring to the Mk2 GTI with the 2L. We did that conversion a few years ago with stock ecu and management. It is a Toledo loom and computer as the throttle bodies are different from the Ibiza, as the Toledo runs a mechanical speedo.

It ran sweet when it left here as it was all stock management.

It has since been through 3 owners, one of whom put a massive cam and adjustable cam gear on it. Who knows how he set it up.