Audi S3 GT3582R stroker Build (previously GT3071r)

[tufftybloke]

That was an enjoyable read and a very nice car! Like it's been said love your attention to detail and how you've managed to keep it looking standard ish under the bonnet (at least untill you fitted that wacking great inlet manifold!). I wish I'd of bought a S3 now!

Thanks dude... its been tricky balancing OEM looks with stuff required for power but other than the 'larger' inlet its still as OEM as I can realistically make it...

I'm thinking of relocating my battery to the boot also. Is there a reason why you didn't fit a inline fuse in the boot near the battery? Are they not needed or can you not get a fuse big enough? Looking forward to seeing what you've got planned next!

Fairly sure the TT V6's don't have an inline fuse for the battery they have in the boot and didn't wanna add more potential for voltage drop into the equation...

I have secured the cable over the run and arguably would need a fairly hefty hit in the passenger side to present an issue of it being compromised enough to short...

<tuffty/>

 

[tufftybloke]

Had the car on the dyno today to see if the odd boost issue is now sorted.... apparently not...

After 3 back to back runs the turbo was getting laggier and laggier... bugger!...

Bill thought it was the wastegate... this was confirmed with a smoke test....
http://www.youtube.com/watch?v=2Ks2NMVLboA

...and the fact the top of the tial could be rocked!!! so it had to come off... took it apart and...

...this was 'closed'...

...this would be why it wouldn't close...

...which resulted in the seal doing this...

...and on the piston itself you can see witness marks from it hitting and a scorch mark from the heat...

All this was causing the head of the tial to pitch and the valve to stick... giving varied boost and of course the inevitable lag on subsequent runs...

So... the poor old girl is in bits again awaiting bits... boo

<tuffty/>

 

[Gulfstream]

if it's a 38mm Tial you need I have one sitting here not in use...

 

[tufftybloke]

if it's a 38mm Tial you need I have one sitting here not in use...

Thanks dude but mine only needs a new seal and loctite for the screws and it will be good to go... just make sure you check yours over before fitting it....

In other news (and I forgot to post this...) I am now an official member of the melty boost pipe club with a couple of others on ASN...

...so when she all goes back together I'll be looking into sorting the heat shielding out... don't underestimate your need for heat shielding

<tuffty/>

 

[Gulfstream]

Mine is fine. I thought I had a leak, so I bought a new one which turned out to have the same leak. It calibrated from Tial apparently. Turned out to be the WG rerouted flexpipe that shrinked inside ( tnx Bill I've gone through 5 of those silicone hoses out of my compressor. Now I have triple heat protection outside the silicone and will replace it by welding an aluminium pipe to the compressor housing this winter.

 

[tufftybloke]

Got the tial repaired under warrenty by Owens... quick turn around too so props to them...

The have to remove some of the paint to get to the serial number as initially they couldn't see it so said it was most likely a fake!!! we know this isn't the case as Bill only buys these from Owens but thankfully I still had the box and Owens had already gone ahead to check realising the top was painted so all was good... phew!!.. also got a new reducer from Forge seeing as mine was suffering a little from the heat lol...

Owens changed the diaphram and valve assembly as well as loctiting the screws in...

...and of course repainted the top ;P

So, refitted the tial...

...and retired the original K04 heat 'shield' as this was looking rather tired...

Clearly the hose is a lot closer than I remember it being and I think when the engine comes out (at some point in the future) for a bottom end build I will look to address this a bit better but for now it is what it is....

Wrapped the hose in a reflective heat wrap with 1/2" of ceramic wool material that should hopefully keep things happy for now... I doubt its going to be the best solution as I need more air gap to do a more effective solution but it will do for now...

Also had an issue with heat affecting the silicon vac pipe for the actuator so made a small shield to try and help that out...

...fitted that and some extra heat wrap to try and prevent the vac pipe from getting damaged...

Not had a chance to get her on the dyno as yet... still have an ongoing issue that causes an excessive fuelling on cruise which 'appears' to be triggered when I use the cruise control so I have an idea on where to look map wise... for the time being though she seems to run ok albeit a little 'rough' on cruise (although Mark reckons he couldn't feel anything when he was in the car earlier)... I know its there so will look at map tweakage in due course...

Getting there...

<tuffty/>

 

[CharlieRCupes]

A lot of time, effort and money has gone into this. Love it mate, so smart and tastefully done.

 

[Feel]

Tidy as always - do you remember the boost pipe issues on the LCR and S3 - you need a hose made from Flurosilicone. Forge might have something that could work (LCR/S3 stock?)

 

[tufftybloke]

Small update... while investigating my fuelling issue I noticed some black deposits in the FPR bowl... having seen this before I knew it was the rubber fuel lines rotting... so today I stripped the fuel rail and fuel hoses off and replaced the hose with new fuel line, stuck the FPR and injectors in the ultrasonic cleaner and cleaned out the fuel rail...

FPR was showing signs of clogging...

I had cleaned out the FPR bowl the other day as I fitted a 4bar FPR to see if it would improve the atomisation of fuel from the injectors but bits had clearly got back in...

Kept an eye on STFT's and LTFT's on the drive home using the Torque app on my android phone and things are looking up... STFT's aren't leaping around as much as they were before and LTFT's seem stable at the moment too...

Will give it time to settle and do some more proper logging to see where we are...

As a bit of a laugh I tried the Anitlag/Launch control out tonight... sorry but the sound didn't work very well for technical reasons but you get the idea
http://www.youtube.com/watch?v=FVD3zvvlR5Q

<tuffty/>

 

[cuprak04]

I have spent the last week reading your thread, wish I had the Money, Time and of course a man like Bill about to make the same mods you have.

Although I am thinking without an LSD the Turbo would be wasted on my LCR.

Well done on the thread and keeeping the Standard look also

Small update... while investigating my fuelling issue I noticed some black deposits in the FPR bowl... having seen this before I knew it was the rubber fuel lines rotting... so today I stripped the fuel rail and fuel hoses off and replaced the hose with new fuel line, stuck the FPR and injectors in the ultrasonic cleaner and cleaned out the fuel rail...

FPR was showing signs of clogging...

I had cleaned out the FPR bowl the other day as I fitted a 4bar FPR to see if it would improve the atomisation of fuel from the injectors but bits had clearly got back in...

Kept an eye on STFT's and LTFT's on the drive home using the Torque app on my android phone and things are looking up... STFT's aren't leaping around as much as they were before and LTFT's seem stable at the moment too...

Will give it time to settle and do some more proper logging to see where we are...

As a bit of a laugh I tried the Anitlag/Launch control out tonight... sorry but the sound didn't work very well for technical reasons but you get the idea
http://www.youtube.com/watch?v=FVD3zvvlR5Q

<tuffty/>

 

[tufftybloke]

I have spent the last week reading your thread, wish I had the Money, Time and of course a man like Bill about to make the same mods you have.

Although I am thinking without an LSD the Turbo would be wasted on my LCR.

Well done on the thread and keeeping the Standard look also

Thanks dude... its a labour of love

<tuffty/>

 

[ibizacupra]

Although I am thinking without an LSD the Turbo would be wasted on my LCR.

you need gear based boost mapping
Something we can do now here at badger5

 

[Gulfstream]

you need gear based boost mapping
Something we can do now here at badger5

Turbosmart Eboost2 ?

 

[james.l]

Turbosmart Eboost2 ?

Done via me7 ecu

 

[ibizacupra]

Turbosmart Eboost2 ?

nope... done within me7 std ecu...

Special Custom Mapping of this particular feature, unique specific application of it so far as I know.

 

[Gulfstream]

nope... done within me7 std ecu...

Special Custom Mapping of this particular feature, unique specific application of it so far as I know.

Thats completely awesome! My Eurodyne dont know what gear I'm in.

 

[ibizacupra]

Its specially modded me7 code we have had done to our spec..Other option is 5x boost level maps which are suited more for the 4wd cars which are'nt traction limited.

Its quite cool... makes me excited tuning me7 again

Ideal for high power fwd cars, which we have built a fair few of... Always traction limited.. so this helps with that, without having to spend ££ on external controllers like AVC=R for example.

ME7 knows what gear you are in as std... The control of the power depends on how you choose to manage boost control..

 

[Gulfstream]

But ME7 ECU can only regulate less than 22psi tho right? Using N75 valve?

 

[ibizacupra]

But ME7 ECU can only regulate less than 22psi tho right? Using N75 valve?

nope

it will regulate whatever you want..

 

[Gulfstream]

Just got a confirmation from Tapp who writes Eurodyne that ME7 ECU only regulates below 22psi. I'll show him this thread