sorry' date=' i am calm honest rich:D only lost it once on here over golf remember im happy to be informed.

and as you say rich Dyno's in my opinion vary too much aswell[/quote']

Kenny

Nothing wrong with the Golf m8.

It maybe that tuners tweek engines to give the best figures on their rollers and keep tweeking untill they show the highest output. These maps may not suite other rollers, just guessing.

I know exactly what you mean Des.

And I'm not knocking what people may think I'm knocking.

Christ, I'm being as cryptic as you now.

I know exactly what you mean Des.

And I'm not knocking what people may think I'm knocking.

Christ' date=' I'm being as cryptic as you now.[/quote']

I miss this type of discussion.

is that the discussion over now?

As I have said in the past. If we take readings from one roller for two cars identical baring one had a K03 and one had a K04 and apply only 50% difference mark up on there previous figures then I should be up past 260BHP; assuming I went to the same one he used when he got a 254 reading...that said and it's a limited number of rolling days that I have been to so perhaps I should not. Each of the two days I have been to thus far cars from the hosting tuner have achived better results than mine or anybody; from just a map and zero other mods, perhaps heatsoak, perhaps not .

The only real practial use for rollers is to see the curves to understand how the car is delivering the power and where.

When Ian and I (He Jabba, me APR) had our 44's we made use of a meter (AP-22) it was perhaps the most enlightening period of time ever. Very telling...the results were near identical for power just delivered in a different way.

As for Ffelans it leaves my WRC spec standing, and I pull away from 180 Golf's...

is that the discussion over now?

Obviously not.

I could print the infamous Borg warner letter, that may open a few eyes.

cant wait

I miss this type of discussion.

You can't get 225bhp out of an 1.8T with a KO3 by just remapping it unless you spike the power for a millisecond, there i've said it now. :P

i'm guessing 'SPIKE' and 'Millisecond' are the key words in post 22 ???

This is the e-mail

This should stir things up;

The Question

Can the K03 turbo (5303 988 0011 or 5303 988 0053) be directly replaced by the

K03S (5303 988 0052 or 5303 988 0026) in terms of the intake and exhaust housing

dimensions?

Is K03S the correct designation for the latter turbo mentioned above?

Obviously if a K03S was fitted an engine map could be changed to suit, but would

a standard turbo map for the K03 be suitable for running a K03S on?

or would a loss of power be expected? and are the characteristics of the two

very similar?

I hope you can assist with the above and any information you could supply would

be gratefully accepted.

It's taken me a couple of weeks to get a response, but the response was well

worth it, I think y?u'll agree.

The Answer

Dear Sir,

thank you for your interest in our products.

First of all, we don't produce any turbo that we call K03S. But I hope I can

answer your questions with the following explanations.

All the following turbos have the same installation dimensions and

thermodynamical performance. The differences are only in the actuator that

opens the turbine bypass valve:

K03-011 (5303 988 0011) 150 hp, 65 N actuator

K03-026 180 hp, 85 N actuator

K03-035 180 hp, 85 N actuator

K03-044 150 hp, 65 N actuator

K03-045 156 hp (Ibiza Cupra), 85 N actuator with 2 ports

K03-049 150 hp (Sharan/Alhambra), 65 N actuator

The 180 hp versions have an actuator with a higher opening force due to the

higher exhaust gas pressure (which is a consequence of the higher boost

pressure). Otherwise the valve would be pushed open by the exhaust gas

pressure.

The following turbos are a further development (since 2000) and have an

improved and slightly larger compressor while using the same turbine (still

with the same installation dimensions):

K03-052 180 hp, 85 N actuator

K03-053 150 hp, 85 N actuator

K03-058 150 hp/180 hp, 85 N actuator

Consequentially, putting a 180 hp turbo on a 150 hp engine will not bring

about any change in performance, but putting on a K03-052/053/058 instead of

the older versions will bring a slight improvement in engine efficiency.

Additionally, with re-mapping the ECU you can achieve about 215 hp without

danger of overspeeding the turbo. With the older turbos, 195 hp is the

limit.

With the K04 that's also commonly used (5304 950 0001) the power output

should not be more than 220 hp. That means, changing a K03-052/053/058

against a K04 does not make a lot of sense.

I hope that these details answer your questions. If you need more info, one

of our service distributors will be glad to help you. Their addresses are on

our website www.turbodriven.com.

Mit freundlichen Gr??en/Best regards,

BorgWarner Turbo Systems GmbH

PS the question is not mine.

Very interesting.

What have you done now Des :eek: ........

But how do those BW turbo designations relate to the turbochargers used in the Skoda/Superb 1.8T range, Des?

The 150bhp non-VVT AGU uses turbocharger PN 06A 145 704L.

The AUQ, AUM and ARX all use PN 06A 145 713D, ie the 150 bhp and 180bhp engines use the same turbo.

And the AWT in the Superb uses turbocharger PN 058 145 703J (ie K03-058?).

I don't think he works for them Denis.

The key word in post 22 is surely just :confused:

PS Good to see you Des :wave:

PS Good to see you Des :wave:

You haven't got a web cam now have you Des ?.. :eek:

Metaphorically speaking.

I don't think he works for them Denis.

I'm just trying to flush out whether or not Des knows more, Rich. At the moment he is drip-feeding us with info to be controversial. Notwithstanding that BW say that the later K03 can 'handle' 215hp without danger of overspeeding the turbo, Des was getting 249.1bhp out of his first vRS.

I'm just trying to flush out whether or not Des knows more, Rich. At the moment he is drip-feeding us with info to be controversial. Notwithstanding that BW say that the later K03 can 'handle' 215hp without danger of overspeeding the turbo, Des was getting 249.1bhp out of his first vRS.

I think the 215bhp is just from the turbo.....doesn't mention if you have a TIP, enlarged i/c inlet or a ported heaed for that matter.

Des was getting 249.1bhp out of his first vRS.

Or was he? Des?

Or was he? Des?

The plot thickens :holmes:

I've seen one of these overstressed K03's, not a pretty sight at all. All things are not equal!

I concur with Des in that anything over 220 is "questionable" to setups. But then I'm happily conservative on this area. Des had a figure...I have a figure, you all have a figure...

Okay Golf with K04 ran 208 I ran 216 Paul ran 227 all about the same lumps but K03 and K04 turbos. Pauls peak power was at 4k rpm...overdriving of turbo or dodgy roller run? Mine was 5.5k don't know on the golf. 220 is a good factor, salt is good for figures...I think Des had omre than 220 since he had alot of other tweaks, perhaps not 250 but alot more than a car with just a map and K03. And if we are looking at the flywheel figures, these are a calculated figure, I don't know what variables are used...for example would tyre pressure or tyre size, or the gearing even effect it?

Ass dyno or an AP22 is the closest you'll get, short of a side by side on track with OEM cars published at 180, 200, 220, 240 & 260...

I don't know, I know what I leave and what leaves me, my ass tells me I need less right foot and my wallet tells me I need new tyres and clutch.

So the "Sport" in the so called K03s is just a reference to the higher opening force of the actuator.Well its good to know.

So deciphering the Des blokes 30 posts into one,the later K03 with a higher opening force actuator and the improved and slightly bigger compressor (ie the "sport" model) can be remapped to about 215bhp without stressing the turbo.This makes a lot of sense particularly when you read AMds blurb.They claim 220bhp for a remap on a Octy RS,for

excellent info,nice to know,although I have no idea why this info has been drip fed into the thread,have i missed something in Briskoda history?

Yes. Des likes to take a more enigmatic approach to posting.

oh I see,ta

however,an adendum,if the most you can get from a map is 215,what happens with a new cat and exhaust? is the power still limited by the K03 to 215?