FYI - some N52 oil pan research

[328ijunkie]

standalone running valvetronic? only the very very top dollar ones maybe

[jntar]

standalone running valvetronic? only the very very top dollar ones maybe

True, however valvetronic can also be locked at full lift manually with a block off plate and a traditional throttle body or bodies can be added.

[jntar]

Im pretty sure the stock ecu is very doable. Ill get to it eventually.

Imo, 95% of the time standalone isnt going to be as good as the stock computer, and the cost will always be higher.

If you're serious I suggest giving RMP Motors a call. They are producing some crazy n52 race cars.

http://www.rmpmotors.com/?page_id=521&file=BMW%20N52%20Race%20Car%20Engine%20Build/

[nando]

True, however valvetronic can also be locked at full lift manually with a block off plate and a traditional throttle body or bodies can be added.

Why bother with the n52 then? Isnt valvetronic kinda the point?

A race car is the 5% of the time when it makes sense. The motor will mostly be at WOT, low end drivability a fuel economy dont matter.

[jntar]

Why bother with the n52 then? Isnt valvetronic kinda the point?

A race car is the 5% of the time when it makes sense. The motor will mostly be at WOT, low end drivability a fuel economy dont matter.

I have no intentions on swapping an n52 into my e30. I'm just providing info on what "could" be done.

[328ijunkie]

Most of the crazy N52s ive seen people building out there have it locked out and run off a cable TB.

[nando]

yeah, but those are race motors. I thought the context here was a swap for a street car.

[328ijunkie]

As did I. locking out valvetronic is far from ideal for a street car, esp given the intake manifold and everything is designed around not being under true 'vaccuum'.

[wazzu70]

Shouldnt most standalones be able to actuate the valvetronic?

If you can use the factory ECU though...do that for sure!

[nando]

maybe physically but software support will be limited. there's not going to be a "valvetronic" table in most standalones or dedicated outputs for them. Ones that have that will cost more than a nice E30.

and everyone always forgets about the cost for tuning. if you pay $10,000 for a computer you're not going to get the thing tuned for $0..

[wazzu70]

Exactly, I just meant you would most likely use a pwm output to control it. You would be on your own though to come up with a control strategy.

This is why even if a standalone COULD control things, you are way ahead just using the factory ECU if possible.

[nando]

Bump.

So, it turns out MSV70 is pretty easy to hack. It's set up a lot like the motorsports DMEs. I don't have an EWS delete yet, but you'd only need a couple modules to make it happy. Who wants to try it? :p

[328ijunkie]

You BDMing into it?

[nando]

yeah, but you can do it over OBD as well, it's just a lot slower because of BMW's anti tuning methods (slowing down the write speed so it takes like half an hour to flash).

BDM takes about 1 minute for a complete flash, and with careful procedures you can do it with the DME still in the car without freaking out the CAS.

this one I think I can develop my own performance tune for. Also, I did a compare between my 330i and my wife's 325xi, all the addresses are exactly the same, so if I get her a 3 stage manifold I can literally copy and paste my stock tune over hers.

[328ijunkie]

What software you using to write over OBD?

edit: Ive gone through the A2L pretty thoroughly and the 3 stage conversion seems relatively simple.
The 2 things that make it easy to compare are the Z4 3.0i and 3.0si 0da files.