Tranny Swap Options for e82

[Thunderstorm1250]

I have a 2010 135i with 595 rwhp and 550 ft lbs torque (93+methanol) and I'm about to turn it up even more by going e85. What are the Pro's and Con's of doing a 6hp28 swap versus 8hp70 swap? 6hp28 seems like it is easier and cheaper, but I read fantastic threads about the 8 speed. What is the advantage? I read good things about both options but not much on a comparison.

Any other good options? I like the idea of DCT but it seems less reliable. I'm not interested in making this car a Manual. I'm not into racing, just an old guy who likes to have fun on the street.

Regards,

Eric

 

[Dirty135]

I’m in the same boat. Did you find out any useful information?

 

[Thunderstorm1250]

I'm going 6hp28 swap with Guru Autowerkz. It seems like a cheaper and easier upgrade plus this tranny can handle loads of torque. The 8hp shifts faster. But with Rods tuning I don't think it will be much different.

 

[N54gasm]

I'm going 6hp28 swap with Guru Autowerkz. It seems like a cheaper and easier upgrade plus this tranny can handle loads of torque. The 8hp shifts faster. But with Rods tuning I don't think it will be much different.

Been rocking the 6hp28 in my e82 for a little over a year now. Shifts crisp/quick with rods tune.l, and will handle all the torque lol

 

[Thunderstorm1250]

Been rocking the 6hp28 in my e82 for a little over a year now. Shifts crisp/quick with rods tune.l, and will handle all the torque lol

That's great to hear. Did you use the Guruautowerkz adapter kit?

 

[N54gasm]

That's great to hear. Did you use the Guruautowerkz adapter kit?

There are other options? lol. Yes, the one, the only! lol

 

[Thunderstorm1250]

I got my Guruatowerkz adapter plate and my 6hp28. Upgrade in progress. I am also installing the DocRace ST kit with a 6466. My GC 2.0's failed. Front turbo bearing is squealing!

Also installing N54gasm's coolant/PS relocation tank with a 335D VRSF charge pipe. Should be up and running in a week or 2. DocVu is tuning the car for flex fuel. I'm hoping it will be 600whp on 93/Methanol and 800whp on full e85 + meth. Am excited!

BMW Coolant/PS Res

Ditch that plastic relocated tank that just does not fit right, and will end up leaking, as well as the stock ps res that most people just zip tie out of the way with this nice combo uniit. Aluminum coolant tank and ps res. This unit comes with/without a coolant bung/sensor! Includes all...

spoolnmotorsports.com

Regards,

Eric

 

[Thunderstorm1250]

Alright I got my DocRace ST kit installed with 6466 turbo. I hit the dyno and I'm very happy with the results. 697.3 rwhp on 93 octane + boostane + 1500 mL/min 100% meth in CP. Tuned by DocVu. Near redline I'm at about 28-29 psi at 7 deg timing I'm very happy to be at 700 rwhp without even beginning e85 flex fuel tuning. That comes next.

Regards,

Eric