New Software Utility for the E39 M5 & E46 M3 by ECUWorx

[Anri]

As long as the timing is within +/- 8º of the targe

Hi Terra,

Do you mean 8 Degrees combined or per cam ?

When I set the timing on S54 I do use the Double pin tool
meaning both cams must be aligned perfect or other wise
the second pin will never ever ever slip in but again I do
the timing on S54 the way that both pins drop in on its own
weight. So basically the timing is within ~1+/- or less.

I believe the reason the OEM tool uses Single pin is to
allow for not perfect timing meaning exact spot on with-in less
than a 1 or 2 max combined but rather up to few degrees apart
and if Check engine code show Vanos off range then Technician
must re-adjsut the timing.

My personal taste is 8 degrees is waay to much off but I assume
the DME adaptation works this out...and who cares so long
as the check engine light is Off..No wander one car feels
different than other one...

Regards,
Anri.

[terra]

Per cam. +/- 8º is the DME's adaption limit.

That does suggest that the VANOS adjustment limit could theoretically be increased by a good bit messing with the software, but in that situation if you don't get it spot on, you would increase the risk of bending a valve.

[Anri]

Per cam. +/- 8º is the DME's adaption limit.

That does suggest that the VANOS adjustment limit could theoretically be increased by a good bit messing with the software, but in that situation if you don't get it spot on, you would increase the risk of bending a valve.

Terra,

Vanos adjustments are good via the software and playing with the
timing is good to set the desired curve/power.

Thinking of how good std car with mild tune and cat back feels in the
lower rpm/s. Exhaust system is part of the vanos/power curve.

The factory piston to valve clearance has good margin. I have another
S54 engine for re-fresh and will Clay the pistons and set the timing via
degree wheel and see were the limit is when the camshaft is off from
the factory spec of course using the std 260 cams. Ehh will see if I get
enthusiastic about that....that is a lot of work for just to find where the
limits are on the intake and exhaust timing with std cams.

With large cams and lift that is a must to find the limits

Regards,
Anri

[Martyn]

Adjusting the vanos offsets will obviously allow you a little more advance/retard depending what you are shooting for.

[Zekarus]

The binaries on MSSFlasher do omit a change that might be causing that issue. I hadn't spoken up too much about it in the past since people were seemingly using it without issue. I could upload binaries that do make the change

maybe you can open a thread about this issue or tell us what the problem with the mssflasher csl files is? I also remember a thread about the alternator problem with csl ecu software and your troubleshooting about this issue. would be really nice to recreate that thread. can't find it on google cash. thanks in advance.

[terra]

maybe you can open a thread about this issue or tell us what the problem with the mssflasher csl files is? I also remember a thread about the alternator problem with csl ecu software and your troubleshooting about this issue. would be really nice to recreate that thread. can't find it on google cash. thanks in advance.

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/20328-new-software-utility-for-the-e39-m5-e46-m3-by-ecuworx?p=22137#post22137