MyE28.com

I have Bosch Motronic 1.2 (Part number 0261200007)

I have a subaru VF39 turbo charger off of a STI that runs 8psi wastegate pressure, basically speaking is my engine going to backfire and explode if I run the stock ECU? I'm going to upgrade to 60lbs/h injectors and get a new fuel pump, but I've looked around on the forum and people suggest upgrading to at least 1.3 which will be a big job on the super eta

Man, you already know the answer for that.

The stock ecu is not capable of providing the correct fuel trim/duty cycles for 60lb injectors.

The super eta has the easiest m1.3 upgrade out of all the other harnesses.

Who you jivin'?

I guess but I don't want to do anything extra if it isn't necessary so I thought I would just confirm

Confirm what?

If you want to safely/reliably DIY turbo your engine, you're going to have to do 300 hours of research, then 300 more hours. I hope you can understand how to program a computer/understand all the running conditions of a engine under all variables (including cold/medium/hot conditions) while computing under all loads, all ambient temps, and gear ratios. A team of geniuses write the engine running parameters for every vehicle.

Figuratively speaking, a instantaneous closed loop adaptive ecu would be best- for stoichiometric fuel combustion, but most boosted vehicles don't run stoich for their power band (extra air=extra fuel).

Dude. Seriously.

It took you a week to get a radiator fan off.

take a step back. calm down, do some reading. Also, a vf39 will be wayyyyy to small on an m30.

Ice Coast wrote:take a step back. calm down, do some reading. Also, a vf39 will be wayyyyy to small on an m30.

He had a 528e.

It took a while cause I didn't really have a lot of time to do it, I don't have the luxury of having 2 day weekends and I budgeted 4 hours to do the whole timing belt job which ended up taking multiple days due to running into many many problems, that's what happens when your car sits for 10 years so I asked around tried about 4 different meathods to take off the fan without cutting it but nothing worked so then I ordered a saw off the internet because I'm also poor so it was cheaper to buy one from the united states then locally here in Canada..


Like I said I'm poor so I don't want to spend more money than I have to, I turbo charged a subaru outback before but most of that was bolt on and plug in then forget this car is a little more complicated cause it wasn't designed for a turbo so I'm asking the forums what I should do and I end up getting shit on -_-

The questions you are asking and terms you are using demonstrate that your knowledge level may not be at the right level to make this project a success.

No, you can't use 60lb injectors with a stock Motronic unit. If you can't afford to do it properly you will end up with a disaster or a car that can no longer be driven. If that's ok with you, carry on.

darbyhood wrote: Like I said I'm poor so I don't want to spend more money than I have to, I turbo charged a subaru outback before but most of that was bolt on and plug in then forget this car is a little more complicated cause it wasn't designed for a turbo so I'm asking the forums what I should do and I end up getting shit on -_-

If you're that poor, maybe its not a great idea to be throwing a turbo on your e28. I'm no financial adviser though.

You'd be better off with a non-super eta. I'm not sure how far advanced the timing is on the super, but I know for sure the old one is pretty damn retarded. Todd told me that you can turbo a regular eta without a chip, but with a RRFPR and it should be fine as long as you keep the boost low (6psi or so). He recommended the turbo from a Mustang SVO. I did the math, that turbo is perfectly sized for an eta.