D2 TD5 with 6HP26 from D3,D4 or RRS

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Originally Posted by V8Ian

I very much doubt it would fit.

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M57’s have been fitted to a few now, but they’re tight.

Quote:

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Originally Posted by Slunnie

Well here it is. Td5 to ZF8HP adaptor. I'm not sure how the electronics will work.

BMW N57 8hp to TD5 Auto adapter kit – Deposit | Online Gearbox Parts Shop

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So is this an adaptor to fit a ZF8HP Auto transmission to a td5? If so that would be absolutely awesome. [emoji3][emoji3] Has anyone actually ever completed it?

Quote:

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Originally Posted by Slunnie

Well here it is. Td5 to ZF8HP adaptor. I'm not sure how the electronics will work.

BMW N57 8hp to TD5 Auto adapter kit – Deposit | Online Gearbox Parts Shop

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This would have to be the ultimate upgrade, the boxes are relatively cheap - https://www.ebay.com/sch/i.html?_fro...7+8hp&_sacat=0 - and if they do make the kits you are looking at under $5K for the hardware, then of course the fitting and compudrive to run it (????).

6HP

Ratio

4.1708

2.3397

1.5211

1.1428

0.8672

0.6911

- 3.4025

8HP

Ratio

4.6957

3.1304

2.1039

1.6667

1.2845

1.0000

0.8392

0.6667

- 3.2968

4HP

2.4795

1.4795

1.0000

0.7281

- 2.0857

Already have the problem of M&S overload with the boost not even turned up to anywhere near max (26 psi at moment) and have to temper the right foot when over taking as Mario and Stan start flashing me with foot to the floor overtaking and having to then stop and restart falling back behind the car just overtaken making it a useless exercise, have learnt now.

Quote:

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Originally Posted by RRT

This would have to be the ultimate upgrade, the boxes are relatively cheap - https://www.ebay.com/sch/i.html?_fro...7+8hp&_sacat=0 - and if they do make the kits you are looking at under $5K for the hardware, then of course the fitting and compudrive to run it (????).

6HP

Ratio

4.1708

2.3397

1.5211

1.1428

0.8672

0.6911

- 3.4025

8HP

Ratio

4.6957

3.1304

2.1039

1.6667

1.2845

1.0000

0.8392

0.6667

- 3.2968

4HP

2.4795

1.4795

1.0000

0.7281

- 2.0857

Already have the problem of M&S overload with the boost not even turned up to anywhere near max (26 psi at moment) and have to temper the right foot when over taking as Mario and Stan start flashing me with foot to the floor overtaking and having to then stop and restart falling back behind the car just overtaken making it a useless exercise, have learnt now.

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Mario and Stan...[emoji1787][emoji1787]I like it. [emoji106]

Attachment 178824

Having got 4.37 diffs and 32" tyres, used the Ashcroft calculator (had to only use 6 gears so took out the middle ones) to see what the hell the ratios would be against the stock. For my D2 the top gear at 100kph at 2,305 rpms, perfect, and the low ratio of 68.13 or at 10 kph 4,449 rpms!!!!!!!!!!!

Found a challenge

Attachment 178826

Quote:

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Originally Posted by SPROVER

So is this an adaptor to fit a ZF8HP Auto transmission to a td5? If so that would be absolutely awesome. [emoji3][emoji3] Has anyone actually ever completed it?

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Not that I’ve ever heard of. I think this is the start and these haven’t been manufactured yet. Electronics will no doubt be the tricky bit.

Quote:

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Originally Posted by Slunnie

Not that I’ve ever heard of. I think this is the start and these haven’t been manufactured yet. Electronics will no doubt be the tricky bit.

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May not be that big of an issue

HTG GCU Gearbox Control Unit - ZF 8HP70 automatic mode, sequential shifting, standalone - YouTube

HTG tuning Gearbox Control Unit GCU standalone - ZF 8HP70 paddle shifts, smooth driving - YouTube

Quote:

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Originally Posted by Slunnie

Not that I’ve ever heard of. I think this is the start and these haven’t been manufactured yet. Electronics will no doubt be the tricky bit.

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Been looking at the Website of the controller people and although there is some work to be done, soldering etc. the other aspect is getting the information for torque estimation which the current ECU does and is available but how is this input into the TC at the moment? The rest of the set up is quite intuitive as to the tables and selecting the change points up and down.

HTG Tuning Wiki