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      05-26-2017, 06:23 PM   #23
stealth.pilot
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Originally Posted by 2016-M5 View Post
UPDATE

Im still releasing thick oily stinky smoke on decel after WOT, and to my horror im actually consuming oil, my car doesn't usually use a drop and ive used half a litre in 2 days of test blasting with the new meth mix (approx 85/25) but just been told this is too high concentrate of meth and "can" in some cases strip the bores of some kind of film and then wash past the rings.

Its only smoked and used oil since using the much higher concentrate of meth, just pumped it all back out and replaced for pure 100% distilled water this time, will see if this solves the problem

Just looked on other forums and other people seem to be getting the same problem but few and far between.

Hope my engine is ok
One day you will hit rock bottom. And then you will stop doing this shit to your car, and instead just buy a faster car.
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      05-27-2017, 03:50 AM   #24
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Originally Posted by stealth.pilot View Post
One day you will hit rock bottom. And then you will stop doing this shit to your car, and instead just buy a faster car.
Lol good advise, not sure there is anything currently on the market i could buy that's faster, my car pushing 800+ BHP at crank, and can't afford a Veyron

Tuning is lots of fun, if you not tried it, you should, these cars have lots of potential.

As for the issue: think ive just used the wrong mix, at too higher flow, will do some more testing.
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      05-27-2017, 10:01 AM   #25
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Originally Posted by KMORGSM5 View Post
Trevor,

Let's take a ride in my car and you see if you think if it's worth it ?


i'm not saying it isn't a viable option via (piggy) for power, BUT, why the risk when you can just flash? and be much safer, and probably more reliable.


I would like a ride in your car, but too bad when i do meets, no Kev
I know I'm missing all of them, work has me flying all the time. I'm going to come to one soon!
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      05-28-2017, 01:16 AM   #26
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Quote:
Originally Posted by 2016-M5 View Post
UPDATE

Im still releasing thick oily stinky smoke on decel after WOT, and to my horror im actually consuming oil, my car doesn't usually use a drop and ive used half a litre in 2 days of test blasting with the new meth mix (approx 85/25) but just been told this is too high concentrate of meth and "can" in some cases strip the bores of some kind of film and then wash past the rings.

Its only smoked and used oil since using the much higher concentrate of meth, just pumped it all back out and replaced for pure 100% distilled water this time, will see if this solves the problem

Just looked on other forums and other people seem to be getting the same problem but few and far between.

Hope my engine is ok
Get your oil changes, as the oil breaks down or gets washed with fuel (petrol or meth) it can then start passing the PCV system and get into the inlet. Try taking your air filter tops and accordion tubes off the turbo inlets - bet they will be wet with black oil from the PCV
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      05-28-2017, 01:22 AM   #27
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And yes, I think most use to much meth for no reason... Non CP cars can need a bit of support on fuleing when pushing to 23psi, some don't, its just a case of logging.

If your car doesn't need the extra fuel why pump it in? Just use a 50/50 mix and get benefits of some fuel trim head room and cooler inlet temps support power for long and the cleaning effect of the mix to help clean the engine internals.

I only ran 50/50 mix and #5 BMS jets, didn't need a higher mix of meth or the lrger jets - #10 that are supplied by BMS. This supported fuel power at 23psi on the regular 45 degrees C (113 F) days here in Australia with no heat soak/power loss on multiple pulls or long high speed runs.
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      05-28-2017, 01:28 AM   #28
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Originally Posted by 2016-M5 View Post
Interesting, how come you said non-CP's?
and how come your selling your beast?
what you buying next?

questions questions - sorry
Answered the CP question above.

Selling car as I have choices:
1/ Retire -and move to Spain or back to the UK
2/ Keep working but still move to Spain (I won't consider working in the UK!)
3/ Keep workin but move to US dependant on work oportunties for my wife and I.

Anyway, car has to go as they are worth WAY (Too) much in Australia.

Will probably go back to a Pcar, a built GT3 or RS- I love light weight cars and rev's!! I have come and gone from BMWS and Pcars a few times now.

Will miss easy tuning you get from the JB4 and a turbo car but can't have it always.
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      05-28-2017, 05:55 AM   #29
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Cyliner Wash

Quote:
Originally Posted by ur20v View Post
Get your oil changes, as the oil breaks down or gets washed with fuel (petrol or meth) it can then start passing the PCV system and get into the inlet. Try taking your air filter tops and accordion tubes off the turbo inlets - bet they will be wet with black oil from the PCV
Seems more and more likely that ive washed the cylinders with TOO high dose of pure methanol, and has got past the rings.. I tested yesterday spaying only water (no meth) and smoke from exhaust was less but fear there is still oil in the system/exhaust which is still puffing out and will take time to clear. It seems to only come out on decel.

So im wondering:

1) Will my engine be ruined from this unexpected cylinder wash (due to running too high doses of meth? 85/15) i only spent a few hours of testing on the higher dose

ur20v
2) Could you let me know if i should "take air filter tops and accordion tubes off the turbo inlets" but then should i do something? clean or something?

Hope ive not done any permanent damage
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      05-29-2017, 10:24 AM   #30
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Quote:
Originally Posted by 2016-M5 View Post
Quote:
Originally Posted by stealth.pilot View Post
One day you will hit rock bottom. And then you will stop doing this shit to your car, and instead just buy a faster car.
Lol good advise, not sure there is anything currently on the market i could buy that's faster, my car pushing 800+ BHP at crank, and can't afford a Veyron

Tuning is lots of fun, if you not tried it, you should, these cars have lots of potential.

As for the issue: think ive just used the wrong mix, at too higher flow, will do some more testing.
Oh I don't know a Z06 or CTSV , with just a pulley exhaust and tune on 93 octane are a couple of quick examples lol .
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      05-29-2017, 12:59 PM   #31
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I don't understand how meth can 'wash' the cylinder walls?? It's flammable and burns - is there some chemical property that's interferes with the alusil?
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      05-29-2017, 02:02 PM   #32
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Quote:
Originally Posted by allmotor_2000 View Post
I don't understand how meth can 'wash' the cylinder walls?? It's flammable and burns - is there some chemical property that's interferes with the alusil?
Im at a loss buddy, its STILL smoking on decel, almost seems worse when going down hill?? its now not doing it every time, its intermittent, but just when you think its gone it puffs out another huge blue smoke plumb again. Its definitely oil, its blue and stinks. Normal driving its fine, WOT is fine, its on overrun/decel

Read somewhere that over fueling especially with meth can destroy the thin film of oil which seals the piston rings to the cylinder, which then causes metal on metal scraping due to the thin film being destroyed temporarily.

However i have not used a huge volume of spray, im only on AEM medium sizes jets 500cc each pipe, and i ran 80/20 ish meth mix, BUT soon as i used this set up BANG the road filled with blue smoke ever since.

Im now banking on a possible coincidence of a PCV valve being blocked (if i knew where it was or how to unblock it) OR a blown turbo oil seal

Done a "by eye" basic pressure test just opening oil cap when engine running and did not seem to be any excess pressure - so im totally lost

Also if i take to BMW under warranty, they'll kick me out once they see the ECU's have been clearly opened
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      05-29-2017, 04:33 PM   #33
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PCV is connected to the turbo inlets on each side. Easy to pull out.

Could be turbo seals.... do a compression check to eliminate rings/valves.
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      05-29-2017, 10:16 PM   #34
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Quote:
Originally Posted by 2016-M5 View Post
Quote:
Originally Posted by allmotor_2000 View Post
I don't understand how meth can 'wash' the cylinder walls?? It's flammable and burns - is there some chemical property that's interferes with the alusil?
Im at a loss buddy, its STILL smoking on decel, almost seems worse when going down hill?? its now not doing it every time, its intermittent, but just when you think its gone it puffs out another huge blue smoke plumb again. Its definitely oil, its blue and stinks. Normal driving its fine, WOT is fine, its on overrun/decel

Read somewhere that over fueling especially with meth can destroy the thin film of oil which seals the piston rings to the cylinder, which then causes metal on metal scraping due to the thin film being destroyed temporarily.

However i have not used a huge volume of spray, im only on AEM medium sizes jets 500cc each pipe, and i ran 80/20 ish meth mix, BUT soon as i used this set up BANG the road filled with blue smoke ever since.

Im now banking on a possible coincidence of a PCV valve being blocked (if i knew where it was or how to unblock it) OR a blown turbo oil seal

Done a "by eye" basic pressure test just opening oil cap when engine running and did not seem to be any excess pressure - so im totally lost

Also if i take to BMW under warranty, they'll kick me out once they see the ECU's have been clearly opened
Looks like Rock Bottom is not that far away.

It at the end of this saga it turms out you've done $15-20k of damage to your engine, how will that affect your willingness to meth your car next time?
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      05-29-2017, 10:41 PM   #35
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Quote:
Originally Posted by stealth.pilot View Post
Looks like Rock Bottom is not that far away.

It at the end of this saga it turms out you've done $15-20k of damage to your engine, how will that affect your willingness to meth your car next time?
Why is this related to meth? It could just be a consequence of the power levels or accelerated wear.

I am building a whole new engine and will use even more meth
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      05-30-2017, 03:25 AM   #36
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Quote:
Originally Posted by stealth.pilot View Post
Looks like Rock Bottom is not that far away.

It at the end of this saga it turms out you've done $15-20k of damage to your engine, how will that affect your willingness to meth your car next time?
These engines work exceptionally well with water injection / meth, even manufactures now starting to install water injection in their cars.. my problem, could be turbo seals, broken nozzle, the list goes on

- once your a meth head you don't go back.
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      05-30-2017, 05:49 AM   #37
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Quote:
Originally Posted by 2016-M5 View Post
These engines work exceptionally well with water injection / meth, even manufactures now starting to install water injection in their cars.. my problem, could be turbo seals, broken nozzle, the list goes on

- once your a meth head you don't go back.
Have you changed the oil yet? Maybe the oil is saturated with gas.
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      05-30-2017, 07:15 AM   #38
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Originally Posted by Mcc420 View Post
Have you changed the oil yet? Maybe the oil is saturated with gas.
Yes, changed the oil, but smoke still coming out, so hard to tell if its the old oil slowly coming out, or the new oil still leaking. Either way i have to find out what started this in the first place
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      05-30-2017, 08:19 AM   #39
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Originally Posted by 2016-M5 View Post
These engines work exceptionally well with water injection / meth, even manufactures now starting to install water injection in their cars.. my problem, could be turbo seals, broken nozzle, the list goes on

- once your a meth head you don't go back.
So you believe you would have had issues with your engine regardless of whether you tuned your car?
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      05-30-2017, 10:33 AM   #40
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Quote:
Originally Posted by stealth.pilot View Post
So you believe you would have had issues with your engine regardless of whether you tuned your car?
Buddy, im still trying to get to the bottom of this issue, i can see you're against tuning, but going on about hitting rock bottom etc aint helping much - so if you wouldn't mind going to throw stones in a pond for a bit, i'd appreciate it, thanks
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      05-30-2017, 01:20 PM   #41
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Quote:
Originally Posted by 2016-M5 View Post
Buddy, im still trying to get to the bottom of this issue, i can see you're against tuning, but going on about hitting rock bottom etc aint helping much - so if you wouldn't mind going to throw stones in a pond for a bit, i'd appreciate it, thanks
Lol you nicely told him to fuck off because he was being an unhelpful ass. Makes sense if you ever move to P car try not to be "that guy"
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      05-30-2017, 01:46 PM   #42
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Brother, I hope you get to the bottom of this and find resolution as soon as possible.
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      05-30-2017, 01:59 PM   #43
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lol yes, he not helping at all, have got a few people on this issue now, will report back as and when things develop
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      05-30-2017, 02:15 PM   #44
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Take the car to an independent to do compression/leak down tests instead of guessing about the ring/piston/block's condition. I'm sensing this is the main concern; rule that out and move on to other potential areas of interest.
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