polley

2 hours ago, jon dee said:

Without more information, I cannot comment about the risk involved in patting your pussy

Cheers...

 

Uncontrolled release of liquids would be a worksafe notifiable event.

I've test fitted an m70 in a land rover.

4 minutes ago, HaNs said:

Hard to see much as resolution is so low

Looks like some odd axis changes and also map changes, almost like a lazy dump from another software version with maybe more power?

I use winols 10 hours a day if you need anything looked at let me know.

It was uploaded as a full res screen capture but maybe bimmersport compressed it? 

I think the IQ limits are probably too high to be a dump from a higher power software version? It looks like the MAF scale on smoke limiter has been extended? If there is anything real weird it could be my map locations or scale offsets could be wrong too. Im only learning it as I go as a hobby / out of interest.

2 minutes ago, thorburn said:

Foolish maybe. I'll try Google educate myself as much as possible before diving too deep. 

Does the fuel pump/rail have a mechanical pressure relief in these? 

 

How much are you hoping to tweak it by? The fuel pump has a pressure control valve inside it that is controlled by the computer, thats how it controls rail pressure. The standard injectors are limiting in the fact that they cant inject enough fuel fast enough when you start getting into the higher quantitys, and you end up injecting fuel well ATDC which creates a lot of heat. I have a CP3 R90 pump here, I was going to stick it on mine, but Ill probably never get around to it.

Went back and loaded up some winols projects from awhile back, I spent considerable time awhile ago researching tuning the M57 and finding maps. Comparing my standard map and one that I paid for from a well known tuner. As you can see boost has not been increased by much, I suspect the standard turbo isnt good for much more? Seems to be a popular upgrade to fit the turbo from the later model M57TU and then turn the boost up further. Smoke limits increased, standard maps probably pretty conservative to meet emissions, and drivers wish limits increased. 

Smoke and drivers wish limits / maps are in mm^3 of fuel. SOI maps left standard. EGR disabled (as i removed it). Few other things changed as well but not too much of interest. Tune was left conservative to be easy on the auto gearbox (known weak point). Car drives well and doesn't smoke, other than a slight haze when you boot it. Car has done about 80,000km since been remapped, and towing loaded car trailers over the kaimais etc no problems.

2 hours ago, E30 325i Rag-Top said:

It’s a single injection event, however, there are multiple phases within that event, it’s not all one big squirt and done like it used to be.

As I understand it The piezo injectors can control the amount of needle lift to vary the flow rate of the fuel entering the cylinder. As it says in the document, starts slow and ends quick, and has a few ups and downs in the middle.

Noise is reduced by having the less violent start, plus the emissions (especially the NOx and particulates) are controlled by reducing the temperature of the flame front as it spreads through the cylinder.

Only the later m57 engines use piezo injectors. The early ones such as in the e39 and e53 are solenoid type.

1 hour ago, dirtydoogle said:

Apart from the pre injection it would be continuous 

The same words of caution apply. It's not as simple as petrol injection tuning, which I do a lot of, or carburetor stuff, which I do a lot of.

But, if you want to Google your answers to try one up someone who i has been the performance industry for more than a couple of forum searches, who is just saying be careful, be my guest. 

 

Not googling answers to try and one up anybody, was really only asking questions. As usual most things on this forum turn into a sh*t show, no wonder its slowly dieing.

So really it's not a multi injection event but rather continuous from what it describes there.

I cant find any reference to multistage injection for early m57 / edc15.

So what other maps need to be looked at on a diesel that does multiple injection cycles?

Not sure if the early m57 does multiple injections per cycle? What's the affect of multiple injections per cycle? Is that how they get them to run so quietly compared to a regular diesel?

Obviously there is other safety maps that need to be changed as well. Smoke / maf limiter, boost limiter, torque limiter, rail limiter, injection quantity limiter.

4 hours ago, dirtydoogle said:

The worry for me is a fair few professionals out here will essentially alter fuel timing, increase rail pressure and boost pressure targets. 

Meaning a "typical re-flash" may be no better than a tuning box. 

4m40 is a great motor. 

Compared to a Toyita 3L

 

What else other than fuel quantity, timing (SOI, EOI) , and boost is there? Other than watching egt for safety ?

Haven't delved into it too much but even the e53 / early m57 is a lot more complex than your regular petrol engine tuning. 

Makes me think I shouldn't of chopped my e30 up so much.

Remove the fan, get your cert and then put it back on if your in a rush.

I reflashed mine with regular usb odb2 cable and a modified version of galletto. I got someone else to write the tune for it. But there is some info online regarding map locations if you want to compare my tuned map vs standard map in winols.

Seems good in what way? What change did you notice 

Well depends on the leak really, maybe it doesn't leak until under decent pressure.

I usually pressure test mine to check for leaks when ever I've had any of the turbo / intercooler / pipes apart.

1 hour ago, Herbmiester said:

Mechanic tried that. 

 

Yeah, odd they could find pin holes in a intercooler but not a cracked boost pipe.

Smoke test should of shown that up? 

Yeah imagine everyone driving around second hand EVs with f**ked batterys that get less than 100km to a charge. Gotta top it up every night when you get home. Electricity network struggles on a cold winter night nevermind everyone plugging in their EVs. 

Well the 4 doors are a bit uglier.

Badass car. Drove his lambo in a similar way, no f**ks given.

5 minutes ago, Ghost Chip said:

The double vanos on the tub28 I’ve heard is not as nice to work on. M54b30 would be great although I’m pretty sure it’s near impossible to have AC if you want that (-already quite difficult as it is with a m52). M50b25 would be a good base if you’re wanting to turbo it.

This guide below gives a good overview of what the swap will entail. Although if you’re planning to cert it, you’ll need to do more (depending on what your certifier says e.g driveshaft hoops, wrapping the exhaust, etc…)

https://www.e30zone.net/e30wiki/index.php?title=Engine_Swap_-_M5x

The vanos system is pretty simple, and plenty of info online if you wanted to touch it, not that you really need to.

12 minutes ago, Sammo said:

M54 in an E30 would be wicked - is it a trickier install with the drive by wire throttle though?

Its only a few wires and mounting the throttle pedal really.

Look at m52tub28 and m54 as well, probably easier to find than a m52 these days and similar price.