KO3S VS K04 Why upgrade?

[Petrina Polo]

I read that a Ko3S as in our Gtis and a Ko4-001 is bugger all difference. more lag, questionably a bit more top end.

[pogo_55]

OK I'll bite.....

Here is the dyno results for 3 polos at a dyno day last weekend.

Anthony Clelland(Polo GTI) - 149.6hp (K03)
Kenny Greig(Polo GTI) - 167.5HP (K04)
Shane Bromage(Polo GTI) - 169.3HP (K03)

So there you have it - bugger all difference, in fact the K03 is more powerful.

Happy Petrina??

But it's not so simple........ You need to compare apples to apples.

The 2 apples are Anthony's car and mine. In fact Anthony's car has a Forge tip and other engine hoses which mine doesn't. Anthony's car has from what I understand the "vanilla" flavour Custom Code map, which is equivalent to any of the other "one size fits all" maps you get from the other chip suppliers.
So the K04 provides my car with an extra 18bhp, which is exactly in the range of 10-20bhp that is often quoted for this turbo.

Now the question is why does Shane's car have an extra 20bhp over Anthony's one. Well this car has 2 relevant differences. A light weight flywheel and a "custom" custom code mapping. Gavin and Jimmy have put a lot of time and effort into tweaking the map to match Shane's engine. I think it is fair to say that some of the parameters would be too close to the edge to be seen as possible or prudent in the "one size fits all" maps you get from the other suppliers.

So with these 2 changes applied to my K04 car I think you would see the difference restored.

As to feeling the difference Anthony has driven Shane's car and I'm sure that he will confirm you can feel 20bhp difference.

I would love to know exactly how much of the 20bhp is obtained from the lwfw. This just might of highlighted a bolt on component which offers a decent power gain.

Anyway, congrats to Shane, Jimmy, Gavin and Custom Code. This must be one of the most powerful K03 Polo's around.

Jimmy, Gavin if I have stated things that are wrong or misleading about your product please correct me. I can assure you it wasn't intentional.

Kenny

[Petrina Polo]

Not sure if Im happy yet..

did they have exhausts, dump pipe FMIC..

Is your car just Ko4 and nothing else?

Your Ko4 equates to about 126rwkw... Ive heard of a few cars doing mid 135's (ko3s)

[pogo_55]

They all have the same mods apart from where stated.

Seat intake, Panel Filter, Dump pipe, FMIC.

You can't take dyno figures out of context. The cars with mid 135's would probably equate to Anthony's car on that dyno on that day.

A blufin chipped Golf got this: Steve Wheeler (Golf GTI) - 174.4HP.

Look in the clubs, meets and Events for Brisbane for the full story. Someone was complaining of "losing" 30+ bhp on this dyno.

[Petrina Polo]

fair enough though... high or low, its relative speaking..

[VWindahouse]

It was a great exercise for comparison and research purposes!

Same day and back to back DYNO's (same ambient temps) with the same operators. And all the info you supplied Kenny is true and correct

[h100vw]

It was a great exercise for comparison and research purposes!

Same day and back to back DYNO's (same ambient temps) with the same operators. And all the info you supplied Kenny is true and correct

Anthony's car had the basic Phase 2 loaded on Saturday morning. This is the same point that we started with on Shane's car.

After taking logs of the boost and lambda that were acceptable, we added more timing with the Custom Settings utility. Until the ECU reacted to there being too much and began pulling some back.

I think that with a bit longer to adapt in the car and some extra timing, Anthonys car will produce closer numbers to Shane's.

I don't know that all the 20hp difference is down to the LWFW but I would say that it is responsible for the steep gradient on Shane's plot compared to the other 2 Polo's.

Kenny's plot was pretty 'plump' in the mid range and that has to be the K04.

I did think that the mk5s would have been further ahead of the Polo's. 2 litre engines and 200hp to begin with.

I don't doubt there would be a few more horses in your engine Kenny, with a bit of fine tuning.

Gavin

[Jmac]

Without doubt Anthonys car will be up around there, considering it was reloaded 40 mins before its run it did very well IMO. Ask him at the end of the week how it is. With some of the other thigs that has been done to the car in the way of chassis and brake man itll handle something serious. Putting that power on the ground is the big thing , all you Pog pilots will agree with that.
It was great to see 3 Pogs together for comparisons sake. All were run straight after each other thanks to the operator for that. So temps werent in question, it was very interesting to see the drops on the 2nd and 3rd runs with the heatsoak.
Jmac