**Breaking** 418.5bhp (Parts list pg24) Joe's (GT3071R) Ibiza Cupra R

[Chambers_CUPRA]

Just put hispec in google. ive rang 3 times and always got the same guy who seemed switched on and helpful

Im running AP CP5200 calipers with a corrado setup which is 295mm x 28mm bolted bells and rotors

Cost £311 with 5% discount lol

 

[joehirth]

Just put hispec in google. ive rang 3 times and always got the same guy who seemed switched on and helpful

Im running AP CP5200 calipers with a corrado setup which is 295mm x 28mm bolted bells and rotors

Cost £311 with 5% discount lol

Cheers - I've emailed them asking for a quote.

 

[Chambers_CUPRA]

Cool. Dont Bill do 2 piece discs for the Brembos

 

[ibizacupra]

yes

 

[joehirth]

Friday night - started taking the car apart, turbo came off in a couple of hours, no issues there.



Left it for the night then Saturday morning decided to take the manifold off, again no problems.

Though on closer inspection to the turbo I found these ;











One of the cracks goes all the way through towards the cartridge as you can see.

Plus side is that I have a workshop for the car now

And new steering wheel on the way



Fairly miffed at the turbo to be honest, covered around 5000 miles and very safe map, with good EGT's I'm surprised at the build quality. Anyone had anything similar or got a result from Garrett with replacement under warranty etc?

 

[ibizacupra]

who supplied it? 1st port of call..

they will no doubt question its tuning, egt's fueling etc... and may not take your word on it unless you have evidence of its mapped afr's and EGTs etc (playing devils advocate here)

disappointing seeing cracks tho.. Track use yea? << if so, all warranties are Voided normally

 

[joehirth]

who supplied it? 1st port of call..

they will no doubt question its tuning, egt's fueling etc... and may not take your word on it unless you have evidence of its mapped afr's and EGTs etc (playing devils advocate here)

disappointing seeing cracks tho.. Track use yea? << if so, all warranties are Voided normally

Backdraft supplied, they offer nothing.

I have logs from mapping sessions and road logs thereafter.

One day at Bedford, daily use other than that, so really nothing strenuous.

Assuming heat is the cause but is it known that castings can be manufactured weakly?

Seen many Bill?

 

[Chambers_CUPRA]

Good to seeing the car getting some TLC rather than being stripped for parts.

What made you whip the turbo off?

 

[joehirth]

Good to seeing the car getting some TLC rather than being stripped for parts.

What made you whip the turbo off?

Yeah I'm not ready to break it yet.

The turbo needs an upgraded stud/ nut combo because it comes loose under sustained boost.

 

[Chambers_CUPRA]

Yeah I'm not ready to break it yet.

The turbo needs an upgraded stud/ nut combo because it comes loose under sustained boost.

Thats good here on the breaking part anyway

What you planing for the tubby?

Guessing warranty exchange.

 

[joehirth]

Thats good here on the breaking part anyway

What you planing for the tubby?

Guessing warranty exchange.

Warranty exchange is what I am hoping for but in reality I don't think that will happen. More likely to have to stump up the cost myself. I need to send a mail to Backdraft and see what their response is before I start assuming, however.

 

[ibizacupra]

Backdraft supplied, they offer nothing.

I have logs from mapping sessions and road logs thereafter.

One day at Bedford, daily use other than that, so really nothing strenuous.

Assuming heat is the cause but is it known that castings can be manufactured weakly?

Seen many Bill?

Seen plenty yes

Track use is very high temps
Thats why most dont offer warranty on parts used on track.... they all fail at some point.
Racecars are rebuilt all the time, and things are just consumed as part of racing.

You say not strenuous, but how do you know?

Not warranty on Backdraft supplied unit? They would have bought it in from some one..
T25 hotsides in my experience will always run too hot at your power levels.. Thats why I dont use them myself. External gates on 350+bhp cars is my preference.

If only hotside its not mega £ to replace tho. Do you know who supplied Backdraft? Alex would know if they wont tell you.

 

[joehirth]

Seen plenty yes

Track use is very high temps
Thats why most dont offer warranty on parts used on track.... they all fail at some point.
Racecars are rebuilt all the time, and things are just consumed as part of racing.

You say not strenuous, but how do you know?

Not warranty on Backdraft supplied unit? They would have bought it in from some one..
T25 hotsides in my experience will always run too hot at your power levels.. Thats why I dont use them myself. External gates on 350+bhp cars is my preference.

If only hotside its not mega £ to replace tho. Do you know who supplied Backdraft? Alex would know if they wont tell you.

I have sent a mail to Backdraft and Garrett now, awaiting responses.

I know that the temps are good - the Zeitronix is constantly monitoring the temps and saves high values after a run, never exceeded 850 degs and the probe tip would be about half inch from wastegate port so pretty accurate for telling the turbo temps.

Speaking to a few others this seems like a common issue - how come not addressed yet? The cast manifold that I use has no signs of fatigue or early failure so I don't get it!

Poor build quality IMO. A product design to be given total shite and it can't take daily driving for 5k miles. Mapping logs show that the EGT's were also never too high. What's going on??

 

[Chambers_CUPRA]

Will your warranty be void now you taken it apart joe?

 

[joehirth]

Will your warranty be void now you taken it apart joe?

Doubt it - never had a warranty void if removed sticker

In all fairness some of the cracks wouldn't have been seen if it wasn't apart.

 

[ibizacupra]

I have sent a mail to Backdraft and Garrett now, awaiting responses.

I know that the temps are good - the Zeitronix is constantly monitoring the temps and saves high values after a run, never exceeded 850 degs and the probe tip would be about half inch from wastegate port so pretty accurate for telling the turbo temps.

Speaking to a few others this seems like a common issue - how come not addressed yet? The cast manifold that I use has no signs of fatigue or early failure so I don't get it!

Poor build quality IMO. A product design to be given total shite and it can't take daily driving for 5k miles. Mapping logs show that the EGT's were also never too high. What's going on??

poor quality casting

 

[joehirth]

On a plus note this came yesterday:





Feels really nice

 

[Chambers_CUPRA]

Looks good mate what size is that?

 

[joehirth]

330mmx290mm.

All fitted - not the best pictures but better than nothing;

 

[joehirth]

Opinions needed on the exhaust control valve (ECV) - basically a butterfly which sits in the exhaust to quieten down the tone. This is mainly needed to get me on track.

So I am aware that this are not ideal on a straight through type exhaust system, because they can block the exhaust gases, causing the engine to stall. Looking into a few ECV's it seems that they are alright for straight systems because they leave about 2mm gap all the way around the butterfly when 100% closed.

Obviously this isn't ideal when on track boosting 2.1bar or so but my main issue is passing the static test.

When I went to Angelsey, Silverstone and Brands Hatch non of them were doing out on track drive by sound checking. Goodwood and Bedford did, however. Can anyone confirm that the above tracks don't record the drive by sound?

I will weld in the flange just before the backbox where I have plenty of space - this is what the kit looks like