Does doing FI increase the chance of VANOS going out? Or, unrelated?

[gixxer]

Anyone know if VANOS system failure has any connection to FI?

Or, unrelated?

In other words, does FI add to the chance of VANOS system going out?

There seems to be plenty of reported cases of VANOS going caput on NA system.

Was wondering if FI just shortens the life span of VANOS.

Or, is it all depends on how you drive, how much you drive at higher RPM's, and such, and how punishing you are to the engine?

And does engine internal rebuild decrease, if at all, the chance of VANOS system going bad?

[pei330ci]

Anyone know if VANOS system failure has any connection to FI?

Or, unrelated?

In other words, does FI add to the chance of VANOS system going out?

There seems to be plenty of reported cases of VANOS going caput on NA system.

Was wondering if FI just shortens the life span of VANOS.

Or, is it all depends on how you drive, how much you drive at higher RPM's, and such, and how punishing you are to the engine?

And does engine internal rebuild decrease, if at all, the chance of VANOS system going bad?

FI does not increase wear on VANOS.

Changing other internal parts on the engine will not affect VANOS life.

What's your worry?

[I*do*Werke]

it does cause greater wear on the engine, however i doubt it will cause damage to your vanos..

[bluejeansonfire]

Anyone know if VANOS system failure has any connection to FI?

Or, unrelated?



...well, it's mostly unrelated. Say if you had a lot of knock due to a poor tune or extreme heat. If that or something other damaged the rings, and you got enough blowby into your crankcase's closed system and started to leak boost into there, that could cause damage from pressure messing with oiling patterns, but it takes a lot- you'd be surprised how much boost your seals can take.

This is hardly likely, but it's the scenario in which I can connect one with the other. BTW, stock bmw rings are horrible. I haven't seen the s54, but the USs5x and m5x engines have some pretty outdated stuff.

[BMWfanfromQuebec]

If you want ur vanos life to stay top notch, Change your oil on Time.

FI won't increase wear, engine speed does.

[MachRc]

lol looks like some1s been reading the vanos failure thread :p

http://www.m3forum.net/m3forum/showthread.php?t=203073&highlight=vanos+failure

[gixxer]

lol looks like some1s been reading the vanos failure thread :p

http://www.m3forum.net/m3forum/showthread.php?t=203073&highlight=vanos+failure

:pimpin:

Kept me up all night. :cry:

Good to know that FI does not have direct cause of VANOS system failure.

Always good to fight the FUDs with facts. :)

[MachRc]

^ dont worry I read the same thing last night and feel the same way..:)

[bimmerbum46]

If you want ur vanos life to stay top notch, Change your oil on Time.

FI won't increase wear, engine speed does.

orly?

you know this from experience? wait, can you even drive you? thats right.....

[Matt Q]

dont worry about boost.. worry about tune.. trust me.. no REALLY :)

[bmw_chuzo]

you can change or clean the little filter on the vanos more often? or replace the gasket?? some ideas :)

[bluejeansonfire]

I've rebuilt a few double vanos units in the past, from that i've learned a few things.
The euro s50 and s54 very nearly share a vanos unit. The m52tu/m54/m56 have a vastly different unit. As one might expect, the bulk of my experience with these units is with the latter.

you can change or clean the little filter on the vanos more often? or replace the gasket?? some ideas :)

There is no filter on a nonM vanos.

dont worry about boost.. worry about tune.. trust me.. no REALLY :)

vanos is a worked by electric solenoids triggered by the computer that pressurize oil to adjust the cams. Unless you do something retarded with the tuning, or you can't keep the vanos from resetting itself and making a lot of stupid actuations with the solenoids, tuning shouldn't be an issue.

If you want ur vanos life to stay top notch, Change your oil on Time.

FI won't increase wear, engine speed does.

It's great to have someone regurgitate what they just read.

The vanos is loaded with gaskets, and is relatively difficult to make partially useless. I've seen failing VANOS units, failed vanos units, dr. vanos units. I think heat kills vanos units more than anything else.

[BMWfanfromQuebec]

I've rebuilt a few double vanos units in the past, from that i've learned a few things.
The euro s50 and s54 very nearly share a vanos unit. The m52tu/m54/m56 have a vastly different unit. As one might expect, the bulk of my experience with these units is with the latter.



There is no filter on a nonM vanos.



vanos is a worked by electric solenoids triggered by the computer that pressurize oil to adjust the cams. Unless you do something retarded with the tuning, or you can't keep the vanos from resetting itself and making a lot of stupid actuations with the solenoids, tuning shouldn't be an issue.



It's great to have someone regurgitate what they just read.

The vanos is loaded with gaskets, and is relatively difficult to make partially useless. I've seen failing VANOS units, failed vanos units, dr. vanos units. I think heat kills vanos units more than anything else.


Regurgitated, what i read many times :)

[pei330ci]

I've rebuilt a few double vanos units in the past, from that i've learned a few things.
The euro s50 and s54 very nearly share a vanos unit. The m52tu/m54/m56 have a vastly different unit. As one might expect, the bulk of my experience with these units is with the latter.



There is no filter on a nonM vanos.



vanos is a worked by electric solenoids triggered by the computer that pressurize oil to adjust the cams. Unless you do something retarded with the tuning, or you can't keep the vanos from resetting itself and making a lot of stupid actuations with the solenoids, tuning shouldn't be an issue.



It's great to have someone regurgitate what they just read.

The vanos is loaded with gaskets, and is relatively difficult to make partially useless. I've seen failing VANOS units, failed vanos units, dr. vanos units. I think heat kills vanos units more than anything else.

Great post!

In a somewhat related topic, I think most people would have a crap if they saw the actual oil temps inside their engines.

[MSpired]

Subscribed

[bluejeansonfire]

Regurgitated, what i read many times :)

Despite the internet's wakness in its conveyance of sarcasm, you do bring up a real cause of vanos damage. But have you any idea of why that would be an asset in prolonging the life of a vanos unit, or is it just trivia?

Great post!

In a somewhat related topic, I think most people would have a crap if they saw the actual oil temps inside their engines.


thanks

with a turbo, and no oil cooler, i embrace the oil temps i experience. Sure, it's a tad high when it's 100+ out as it has been the past few days. But most of the time, oil temps are very good. I could not go to a track at 100+ out without an oil cooler. Frequently pitting, on heat, I think my setup would be capable of doing some lapping.
I think the aluminum block does a good job of staying relatively cool. But if you're beating an engine without an oil cooler in the heat, you're right. I think most people would fear for their car's lives... or equate it with permanent structural damage.

[Matt Q]

Unless you do something retarded with the tuning, or you can't keep the vanos from resetting itself and making a lot of stupid actuations with the solenoids, tuning shouldn't be an issue.

er... dunno dude.. I wouldn't rate what we did as retarded and yet the tune toasted 3 pistons.. I recon tuning can toast your engine like few things can.. mix some crappy fuel with a hot day and an aggressive tune and I don't think there are many parts of your engine which wont be toasted.. of course I'm saying this knowing VERY little about engines so I may be very wrong.. just that the question up top was can FI damage Vanos and i was saying.. no not FI but rather the combo of FI and wrong tune....

[bluejeansonfire]

er... dunno dude.. I wouldn't rate what we did as retarded and yet the tune toasted 3 pistons.. I recon tuning can toast your engine like few things can.. mix some crappy fuel with a hot day and an aggressive tune and I don't think there are many parts of your engine which wont be toasted.. of course I'm saying this knowing VERY little about engines so I may be very wrong.. just that the question up top was can FI damage Vanos and i was saying.. no not FI but rather the combo of FI and wrong tune....

well, technically, i genuinely believe that FI can do damage through the scenario i posted above. Given blowby, a number of things can be damaged with boost if the crankcase is being made to hold boost. Seals everywhere are in tremendous danger.

pistons aren't vanos, they're pistons. And yes, you can can damage much with a bad tune. But it's hard to damage the vanos due to a bad tune, especially considering how little adjustment it really needs when just adding FI.

pistons aren't vanos... Unless you're taking about vanos pistons. But even then, unless you have the vanos committing some horrible acrobatics due to a stupid tune (and if the vanos is getting rapidly contradictory adjustments, it is stupid), that's the only way i can see a vanos going bad due to tune.

[Maniac]

^^ bluejeansonfire

your a knowledgable person and i learn alot from reading your posts
keep up the good posts!

[inlinesicks]

Why is it such a big deal, new seals cost $60?

[MachRc]

Why is it such a big deal, new seals cost $60?



um you mean stock oem seals?? The title suggests all e46s, but I think the OP is referring to his m3, the vanos failure in m3s seem to be more catastrophic


http://www.drvanos.com/index.php?option=com_content&view=category&layout=blog&id=5&Itemid=6

[bluejeansonfire]

^^ bluejeansonfire

your a knowledgable person and i learn alot from reading your posts
keep up the good posts!

thanks

Why is it such a big deal, new seals cost $60?

sorry if i caused the topic-push to nonM. I saw the title and thought he was talking about all vanos systems. My personal experience is mostly with the m52tu/m54 double vanos.
Ultimately, the vanos systems do very similar actions through very similar means. However, the M vanos has no rattle issues, and is supposedly much, much faster to adjust than a nonM vanos. The M vanos has a lot more electrical gadgetry than the nonM. I think this is largely as it contains the solenoid(s) to be powered from the same source.

I wish dr. vanos was a member, to share some light more thoroughly. Has anyone here taken a s54 vanos apart? I'd love to see how it works.

um you mean stock oem seals?? The title suggests all e46s, but I think the OP is referring to his m3, the vanos failure in m3s seem to be more catastrophic


http://www.drvanos.com/index.php?option=com_content&view=category&layout=blog&id=5&Itemid=6

I think that's the only source for seals for the M vanos. Not a bad price for a rebuild. When I bought my nonM dr. vanos, it was more.