Bitdi stage 1 remap

Buxton2901

Registered User
So my car is booked into Sunderland performance centre on Friday for a stage 1 tune on the back of @M8NGN getting his car tuned a few weeks ago.

My question to anyone with some tuning knowledge of these cars is what is a safe power/torque before intake temps become and issue and can the gearbox handle 750-800nm torque?

Also does the gearbox need to be remapped?

Cheers
Paul

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jetty

Registered User
One thing I would have checked before your stage 1 is the harmonic damper/crankshaft pulley. Mine failed weeks ago and still waiting for parts - had to be recovered. Seems to be quite common over in the US - haven't seen too many reports in the UK. The guys over in the US are replacing theirs as a preventative measure and before tuning if not already done.
It's basically rubber, so it's a matter of when not if. Running extra torque will certainly increase the risk of a failure.
Mine went at 50k miles :sadlike:
 

M8NGN

Registered User
One thing I would have checked before your stage 1 is the harmonic damper/crankshaft pulley. Mine failed weeks ago and still waiting for parts - had to be recovered. Seems to be quite common over in the US - haven't seen too many reports in the UK. The guys over in the US are replacing theirs as a preventative measure and before tuning if not already done.
It's basically rubber, so it's a matter of when not if. Running extra torque will certainly increase the risk of a failure.
Mine went at 50k miles :sadlike:
I didn't know the Bitdi were released in the US. I thought you had the 3.0 petrol variant? Never heard of the crankshaft pulley failure. If this is on the Tdi I will be sure to look into it.

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fatbadger

Registered User
One thing I would have checked before your stage 1 is the harmonic damper/crankshaft pulley. Mine failed weeks ago and still waiting for parts - had to be recovered. Seems to be quite common over in the US - haven't seen too many reports in the UK. The guys over in the US are replacing theirs as a preventative measure and before tuning if not already done.
It's basically rubber, so it's a matter of when not if. Running extra torque will certainly increase the risk of a failure.
Mine went at 50k miles :sadlike:

Mine failed about 3 weeks ago and had to be recovered, currently still sat in a dealership waiting on parts.
BiTDI, 57k miles.

Not sure there's anything you can check though - they're either OK or they break and fall off!

I don't think tuning will affect it though, you're not changing the loading of any of the auxiliary parts the belt is driving ?
 

B5NUT

Well-Known Member
VCDS Map User
Crank shaft pulley is a common failure item, rust usually sets in and the rubber starts to separate from the pulley, it then starts to rip it's self apart. Can create a lot of carnage as it can smash up the front fans. It was a common failure on the 3.0 C6 but the C7's are also affect by this issue.
 
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fatbadger

Registered User
Crank shaft pulley is a common failure item, rust usually sets in and the rubber starts to separate from the pulley, it then starts to rip it's self apart. Can create a lot of carnage as it can smash up the front fans. It was a comment failure on the 3.0 C6 but the C7's are also affect by this issue.
I was fortunate, it happened at startup and I switched off straight away. Luckily all that happened was the pulley outer fell forward slightly, the belt is still intact and wrapped around all pulleys.
AA chap said he'd seen it a number of times (and not just on VAG cars either).
 

M8NGN

Registered User
Well you learn something new everyday, and it usually costs money. Excellent! Something I will have to put in the book to be changed. Cheers to all for the heads up.

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Buxton2901

Registered User
Car remapped today and results can be seen in the pics. 380bhp and 760nm torque. Really happy with the results and car feels great
2a769a9a88d54e12fea18dd0430945c3.jpg
781551da0a4dd19a245a3dae6e59182e.jpg


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bobby singh

BSR
VCDS Map User
Gold Supporter
So my car is booked into Sunderland performance centre on Friday for a stage 1 tune on the back of @M8NGN getting his car tuned a few weeks ago.

My question to anyone with some tuning knowledge of these cars is what is a safe power/torque before intake temps become and issue and can the gearbox handle 750-800nm torque?

Also does the gearbox need to be remapped?

Cheers
Paul

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Hi Paul gearbox can take much more torque I know a few people that pushed high levels of torque without issues. I just posted some results from a 313hp model which share the same engine with around 820nm so I wouldn't worry about the gearbox.
https://www.audi-sport.net/xf/threads/a7-bitdi-results-313hp-model-dyno-results.420503/
 

Buxton2901

Registered User
Thanks Bobby that is good to know.
I was a little worried about launching now with the extra torque but I do want to get some 0-60 times to see how they compare to the quoted standard figures

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