help - turbo eta

[2low]

Originally Posted by Bullet Ride

It's definitely doable. You can set-up an eta on stand alone, there's just no plug and play kits for them. You'll either have to hack up the wiring harness or gut the stock DME and work at fitting everything into that box similar to this...



FWIW, if all you want to do is a low boost application I'd recommend just swapping in an S50 or S52 motor instead because you'll make similar (if not more) power and still be able to insure the car. An aftermarket turbo is an instant denial of coverage for 95% of insurance companies.

is there a forum or a thread that can show me how to do it lol

[Bullet Ride]

Originally Posted by 2low

is there a forum or a thread that can show me how to do it lol

All you really need is the pinout diagram to connect the dots. And even if you don't do the "i" conversion, you're still going to need to get the toothed wheel and VR sensor off of one of the motronic 1.3 cars because the motronic 1.0 used a 2 reference sensor configuration on the flywheel which I don't know if anyone has actually used with a standalone. You'll need to splice the VR sensor into the harness using the leads from one of the reference sensors on the flywheel.

Here are a few useful links

http://repairguide.autozone.com/znet...52800653d9.gif

http://www.rickk.net/i/drive/bmw-e30...0-information/

http://www.mye28.com/viewtopic.php?t...er=asc&start=0

[2low]

thanks alott mann

[DR.ZED]

Do yourself a favour, weld that darn roll pin that holds the timing key on the flywheel if you're going to stay with an ETA motor.

Also can you use high impedance injectors with that ETA-DME??

[Bullet Ride]

Originally Posted by DR.ZED

Also can you use high impedance injectors with that ETA-DME??

If he goes standalone, which seems like his plan, he can change over.

[egye30]

If you really insist on running boost, i think you should either convert or better yet get a whole "i/iS" M20 complete with ECU and harness, take the time to upgrade the internals and rebuild to create a more reliable boost setup, and since you'll still have your car on the road, you wont be in a rush to put it all back together. Or like Steve (Bullet Ride) suggested maybe consider going the 24v route (M5x or S5x) which you could also boost down the road and make stoopid power

oh.. and get a new diff while you're at it

[2low]

thanks ashraf.. lol abd the diff is coming on the 6th lol

[egye30]

Originally Posted by 2low

thanks ashraf.. lol abd the diff is coming on the 6th lol

Nice, 4.10?? are you done the bodywork or is it still in the shop?

[2low]

still gettin painted and no i decided to go with the 3.73

[karmatose]

I run a 3.73 LSD with my chipped super eta and it's a PILE of fun. Runs out of steam very quickly, but a hell of a lot of fun getting there. Good choice!

[NOTORIOUS VR]

I think a 3.23 diff would be just about perfect..

3.73 is too short, and 2.90 is a touch too long

[Bullet Ride]

Originally Posted by NOTORIOUS VR

I think a 3.23 diff would be just about perfect..

3.73 is too short, and 2.90 is a touch too long

Unfortunately that ratio wasn't an option for the E30. For a turbo E30 I actually like the 2.79 or 2.93 diffs that came in the eta (as long as they are LSD). The tall gearing lets you cruise on the highway doing 2k rpm @ ~120km/h which gives you great fuel economy, and if you do want to run someone, 2nd gear can actually be used if you're on decent tires. I'd image with a 3.73 that 2nd gear becomes useless if you're running anything more than 12psi on a 205 street tire (assuming you have a good tune).

[2low]

With my luck it's not gonna be a good tune. Lol hell I'd be lucky if I find a tune for it in the first place this old eta motor is starting to piss me off lol

[Bullet Ride]

Originally Posted by 2low

With my luck it's not gonna be a good tune. Lol hell I'd be lucky if I find a tune for it in the first place this old eta motor is starting to piss me off lol

If you're going stand alone, there's plenty of info out there to use to build a tune. If you go with MS, they have base maps on their website for a turbo 325i, all you'd need to do is adjust the table so the max rpm is 5000rpm rather than 6500rpm (you don't actually NEED to do that, but it would be a waste of resolution in your fuel and timing tables if you didn't).

But yeah if you don't go standalone you're pretty much SOL because eta motors are boat anchors and that's why there's not much of an after market performance parts catalogue for them. MarkD could make you a custom tune but it's going to cost almost as much as the bits to build a stand alone will cost and will only be good one boost level (+/- a couple psi)

[2low]

Iam thinking of just putting the LSD diff on it for now and just put an exhaust on for this summer until I find and I motor then I'll boost next year. Unless some mirical happens and someone on this form already boosted and eta and has the ecu and tune for sale lol