slow 0-60?

[ChuckMountain]

Launch control is in the manual (MMI) for the 320ps and does seem to improve the time, may well try that app though. It basically revs it the engine to around 3000rpm from memory and dumps the "clutch" and away you go. There are plenty of health warnings too about it in the manual.

What I wasn't sure when I tried is it doesn't specifically tell you, nor does it seem that much difference to just keeping foot on brake, but I didn't want to try latter in case ...

[ChuckMountain]

The procedure to do is, switch engine stop\start off, ESP off, into sport, foot hard on brake, foot hard down on throttle, let go of brake within 5 seconds ...

[Jackblack]

The BITDI gearbox is good for 1250 nm. My BITDI was running 329 BHP fro factory it was a 313.
Im in process of stage 3 upgrade.
Rs6 airbox and KN filter - fitted. Direct fit no mods. ;-). The part number of the K&N air filter is: E-1983 (audi S6 or A6 3.0tfsi) The airbox is from a RS6 (part number 4G0 133 836 AF).
Wagner competition intercooler. Arriving this week. http://www.wagner-tuning.uk/200001103.html
DPF delete. Taking place in tuning shop
Final rolling road tune. Taking place in shop.
DPF delete
460 BHP 900 NM
Hoping for mid to low 4.0 secs.

Not sure if the gearboxes are designed for multiple launches- a friend with an e60 m5 had a massive bill for a rebuild after many (too many) launches. The 3.0 BiTDi is only quoted of doing it in 5.1s with the 320ps engine.

The harshest thing to do to an auto is full bore launches from a standstill.

[mrmarc]

The BITDI gearbox is good for 1250 nm. My BITDI was running 329 BHP fro factory it was a 313.
Im in process of stage 3 upgrade.
Rs6 airbox and KN filter - fitted. Direct fit no mods. ;-). The part number of the K&N air filter is: E-1983 (audi S6 or A6 3.0tfsi) The airbox is from a RS6 (part number 4G0 133 836 AF).
Wagner competition intercooler. Arriving this week. http://www.wagner-tuning.uk/200001103.html
DPF delete. Taking place in tuning shop
Final rolling road tune. Taking place in shop.
DPF delete
460 BHP 900 NM
Hoping for mid to low 4.0 secs.

I'd be very surprised if the BiTDI gearbox is good for 1250nm reliably. I’m sure there was someone on here who had problems with his gearbox when he had his car remapped for 850nm.

[Jackblack]

Why would you be surprised ? What knowledge / experience do yo have on these boxes or engines ? It would be good to know. Thanks.

I'd be very surprised if the BiTDI gearbox is good for 1250nm reliably. I’m sure there was someone on here who had problems with his gearbox when he had his car remapped for 850nm.

[ukgroucho]

@JackBlack I'd be very interested in understanding where you got the 1250nM number from because, like mrmarc, I am very doubtful.

- On ZFs own web site their listing for the ZF8HP specifically states torque ranges from 300nM to 1000nM. If they could support 1250nM reliably I'm pretty sure they'd publish that info.
- There are a large number of variants of the ZF8HP and I doubt that Audi fitted the 1000nM variant to the BiTdi when the 8HP700 or 8HP750 variants would do the job.

In general it has been hard to establish exactly which variant is fitted to BiTdi cars (and there has been lots of discussion) so if you have a solid reference it would be very interesting.

[mrmarc]

Why would you be surprised ? What knowledge / experience do yo have on these boxes or engines ? It would be good to know. Thanks.

It would be good to know "What knowledge / experience you have on these boxes or engine" also.

[Jackblack]

My background is speaking to tuners, master techs, ZF and Audi.
Look mate if you haven't got any background on these machines and are on here playing games answering questions with questions please don't I'm serious about tuning my car and haven't got time to waste replying to nonsense. I thought you may have had some relevant conversations with qualified people that why i asked.

It would be good to know "What knowledge / experience you have on these boxes or engine" also.

[Jackblack]

Hi Uk Groucho,

As you know i have been round the houses with this one as their is indeed a lot off ambiguity to whats real. My car is going to Holland at the end of the month for my tune to a company called JDR engineering. They have tuned a lot of the BITDI and i have been talking with them for the last year about getting my car to stg3.
It was quoted from them this week of over the phone that the boxes can take 1250 nm. That information arose as once again i asked them about longterm lifespan for the boxes after the stg3 upgrade.Thats the source. How they verify that I'm not sure. But nobody in the Uk can match their tuning figures for the BITDI - but thats another story altogether that i wont get into on this thread save for the uniformed chipping in.

@JackBlack I'd be very interested in understanding where you got the 1250nM number from because, like mrmarc, I am very doubtful.

- On ZFs own web site their listing for the ZF8HP specifically states torque ranges from 300nM to 1000nM. If they could support 1250nM reliably I'm pretty sure they'd publish that info.
- There are a large number of variants of the ZF8HP and I doubt that Audi fitted the 1000nM variant to the BiTdi when the 8HP700 or 8HP750 variants would do the job.

In general it has been hard to establish exactly which variant is fitted to BiTdi cars (and there has been lots of discussion) so if you have a solid reference it would be very interesting.

[mrmarc]

Hi Uk Groucho,

As you know i have been round the houses with this one as their is indeed a lot off ambiguity to whats real. My car is going to Holland at the end of the month for my tune to a company called JDR engineering. They have tuned a lot of the BITDI and i have been talking with them for the last year about getting my car to stg3.
It was quoted from them this week of over the phone that the boxes can take 1250 nm. That information arose as once again i asked them about longterm lifespan for the boxes after the stg3 upgrade.Thats the source. How they verify that I'm not sure. But nobody in the Uk can match their tuning figures for the BITDI - but thats another story altogether that i wont get into on this thread save for the uniformed chipping in.

So a man on the phone said so makes it so ??? kiss good bye to your gearbox