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      07-11-2018, 08:59 AM   #23
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Originally Posted by THbimmer View Post
Hi Guys... So the problems just keep coming hahah. I think i have a faulty Vanos system ... ive been looking at RealOEM and cant seem to figure out what part to get replaced...

https://www.realoem.com/bmw/enUS/sho...diagId=11_4765

Is there only one that needs replacing ? I thought there is supposed to be 2 one for intake one for exhaust??
Can you specific as to which parts of the system are bad?
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      07-12-2018, 01:36 AM   #24
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Can you specific as to which parts of the system are bad?
At this moment in time i have no clue what exact part of the system is failing but all i kno, is i have been having the rough idle and no power bellow 3000 rpm symptom for quite sometime...

What is the usual practice? Just the solenoid and seals or replace the whole thing?


https://www.realoem.com/bmw/enUS/sho...diagId=11_4773

https://www.realoem.com/bmw/enUS/sho...diagId=11_4765


Cheers guys !
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      07-12-2018, 03:42 AM   #25
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Your VANOS has to do with your cam profiles changing. That could be a lot of things from something simple to having to pull the heads.
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      07-15-2018, 03:16 PM   #26
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Originally Posted by rjdnyy224 View Post
Are you referring to stock as in bone stock, or as in stock internals? 22psi seems OK as long as you have the supporting mods, DP, FMIC, CP, DV etc.

Also +1 for logs, that's the best way for us to tell if the car is healthy without being there.
22 is definitely okay. Engine was happy with 23-24, but it's always 25 that seems to blow a ring. Just ask Aekdbrich
I so missed this thread. yup, anything over 24 is bad... real bad. I ended up with a blown ring and a worthless motor. heart transplant at 54K.
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      07-15-2018, 03:18 PM   #27
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Quote:
Originally Posted by THbimmer View Post
Hi Guys... So the problems just keep coming hahah. I think i have a faulty Vanos system ... ive been looking at RealOEM and cant seem to figure out what part to get replaced...

https://www.realoem.com/bmw/enUS/sho...diagId=11_4765

Is there only one that needs replacing ? I thought there is supposed to be 2 one for intake one for exhaust??
tell me about the problems? I thought I had faulty VANOS and faulty timing, and it ended up being a blown ring in Cylinder 1. didn't know straight away, because the only indicator was Misfires. needed a new motor.
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      07-15-2018, 09:29 PM   #28
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Originally Posted by Aekdbrich View Post
I so missed this thread. yup, anything over 24 is bad... real bad. I ended up with a blown ring and a worthless motor. heart transplant at 54K.
Jeez, I didn't know you motor blew When did this happen, recently?
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      07-15-2018, 11:37 PM   #29
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N20 11:1 compression: Safety zone 17psi.
N20 10:1 compression: Safety zone 21.7psi.

Anything above it, you are pushing it.
Check your compression.
There are cases when the sidewall of n20 which is using electric arc wire coating are damaged.
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      07-16-2018, 12:26 AM   #30
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What is stock boost?
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      07-16-2018, 04:16 AM   #31
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What is stock boost?
17 psi...
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      07-16-2018, 04:17 AM   #32
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Originally Posted by lefthander View Post
N20 11:1 compression: Safety zone 17psi.
N20 10:1 compression: Safety zone 21.7psi.

Anything above it, you are pushing it.
Check your compression.
There are cases when the sidewall of n20 which is using electric arc wire coating are damaged.
What makes you say these numbers specifically are the safe zones? Even a little stage 1 tune puts you at 21. I think they're a bit higher than that.
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      07-16-2018, 04:20 AM   #33
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on the 20i compression 11:1, stock boost is 0.8bar or 11.6psi.
for 28i compression 10:1, stock boost is 17psi.

this is base on my experience of seeing n20 engine internal go kaboom. you can go higher, no one is stopping you.
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      07-16-2018, 04:33 AM   #34
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There’s way too many variables. Someone running e85 may be able to run more than someone running 93 or 91 octane. Someone in Utah, May be running more because of the elevation. Ie 24 psi in Utah may be like 17 psi at sea level.
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      07-16-2018, 07:42 AM   #35
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Quote:
Originally Posted by rjdnyy224 View Post
Quote:
Originally Posted by Aekdbrich View Post
I so missed this thread. yup, anything over 24 is bad... real bad. I ended up with a blown ring and a worthless motor. heart transplant at 54K.
Jeez, I didn't know you motor blew When did this happen, recently?
recently. my car was in the shop for a month diagnosing the problem. started with a misfire code. The car overboosted to 25psi and kicked the safety map on my JB4. it scared the hell out of me and I took my tune off for about 2 weeks and ran stock. everything seemed fine and checked out, so I changed to BM3. babied the car, as I was getting a misfire, so I did what most normal folks would do... change plugs and coils. no help there. the car started idling crazy rough and I took it to my mechanic. did a compression test... 180 in cylinders 2, 3, 4 - 50 in cylinder 1. did a leakdown test and she was leaking past the rings. my mechanic has a great relationship with BMW and was able to get me a brand new motor. cost effective and not dumping money to labor just to rebuild.

long story to say, IMO with our motors, datalog often. 22psi on stock internals is the highest I would want. anything above is flirting with danger.

when I was running JB4, I was running 22psi with a downpipe and stage 1. Stage 2 flirted with 24 and then overboosted twice which most likely caused me a motor. take caution.

I'm running BM3 stage 1 now in the safe zone. its smooth as silk compared to JB4 and I don't have to worry about excess boost.
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      07-16-2018, 08:53 AM   #36
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Quote:
Originally Posted by ilivas View Post
There’s way too many variables. Someone running e85 may be able to run more than someone running 93 or 91 octane. Someone in Utah, May be running more because of the elevation. Ie 24 psi in Utah may be like 17 psi at sea level.
Definitely. Seeing as I live in California, 25psi here is too much for the engine for sure. I safely ran 23psi with no issues on the engine.

Also, off-topic regarding the oil we talked about in another thread (which I may just post this same response lol), I changed the oil this weekend and surprisingly nothing in the filter this go around. Would like to get a second sample for the oil analysis with no Ceratec.
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      07-16-2018, 09:41 AM   #37
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Quote:
Originally Posted by Aekdbrich View Post
Quote:
Originally Posted by rjdnyy224 View Post
Quote:
Originally Posted by Aekdbrich View Post
I so missed this thread. yup, anything over 24 is bad... real bad. I ended up with a blown ring and a worthless motor. heart transplant at 54K.
Jeez, I didn't know you motor blew When did this happen, recently?
recently. my car was in the shop for a month diagnosing the problem. started with a misfire code. The car overboosted to 25psi and kicked the safety map on my JB4. it scared the hell out of me and I took my tune off for about 2 weeks and ran stock. everything seemed fine and checked out, so I changed to BM3. babied the car, as I was getting a misfire, so I did what most normal folks would do... change plugs and coils. no help there. the car started idling crazy rough and I took it to my mechanic. did a compression test... 180 in cylinders 2, 3, 4 - 50 in cylinder 1. did a leakdown test and she was leaking past the rings. my mechanic has a great relationship with BMW and was able to get me a brand new motor. cost effective and not dumping money to labor just to rebuild.

long story to say, IMO with our motors, datalog often. 22psi on stock internals is the highest I would want. anything above is flirting with danger.

when I was running JB4, I was running 22psi with a downpipe and stage 1. Stage 2 flirted with 24 and then overboosted twice which most likely caused me a motor. take caution.

I'm running BM3 stage 1 now in the safe zone. its smooth as silk compared to JB4 and I don't have to worry about excess boost.
Wow, sorry to hear that Glad you got it fixed for a good price though. I'm definitely with you on the datalog often piece of advice. I run a log every two weeks, even if nothing's changed on the car, just to be safe.
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      07-16-2018, 11:30 AM   #38
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Quote:
Originally Posted by Aekdbrich View Post
Quote:
Originally Posted by rjdnyy224 View Post
Quote:
Originally Posted by Aekdbrich View Post
I so missed this thread. yup, anything over 24 is bad... real bad. I ended up with a blown ring and a worthless motor. heart transplant at 54K.
Jeez, I didn't know you motor blew When did this happen, recently?
recently. my car was in the shop for a month diagnosing the problem. started with a misfire code. The car overboosted to 25psi and kicked the safety map on my JB4. it scared the hell out of me and I took my tune off for about 2 weeks and ran stock. everything seemed fine and checked out, so I changed to BM3. babied the car, as I was getting a misfire, so I did what most normal folks would do... change plugs and coils. no help there. the car started idling crazy rough and I took it to my mechanic. did a compression test... 180 in cylinders 2, 3, 4 - 50 in cylinder 1. did a leakdown test and she was leaking past the rings. my mechanic has a great relationship with BMW and was able to get me a brand new motor. cost effective and not dumping money to labor just to rebuild.

long story to say, IMO with our motors, datalog often. 22psi on stock internals is the highest I would want. anything above is flirting with danger.

when I was running JB4, I was running 22psi with a downpipe and stage 1. Stage 2 flirted with 24 and then overboosted twice which most likely caused me a motor. take caution.

I'm running BM3 stage 1 now in the safe zone. its smooth as silk compared to JB4 and I don't have to worry about excess boost.
what boost level you running in bm3?
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      07-16-2018, 01:38 PM   #39
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Originally Posted by BunkerJ View Post
Definitely. Seeing as I live in California, 25psi here is too much for the engine for sure. I safely ran 23psi with no issues on the engine.

Also, off-topic regarding the oil we talked about in another thread (which I may just post this same response lol), I changed the oil this weekend and surprisingly nothing in the filter this go around. Would like to get a second sample for the oil analysis with no Ceratec.
Yes. Definitely. Because of the air density, a car in Denver would have to run a lot more boost to get the same air flow as your car because your close to sea level. High altitude guys have it hard.

I’m curious to see what the oil analysis says though.
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      07-21-2018, 09:02 PM   #40
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Quote:
Originally Posted by lefthander View Post
Quote:
Originally Posted by Aekdbrich View Post
Quote:
Originally Posted by rjdnyy224 View Post
Quote:
Originally Posted by Aekdbrich View Post
I so missed this thread. yup, anything over 24 is bad... real bad. I ended up with a blown ring and a worthless motor. heart transplant at 54K.
Jeez, I didn't know you motor blew When did this happen, recently?
recently. my car was in the shop for a month diagnosing the problem. started with a misfire code. The car overboosted to 25psi and kicked the safety map on my JB4. it scared the hell out of me and I took my tune off for about 2 weeks and ran stock. everything seemed fine and checked out, so I changed to BM3. babied the car, as I was getting a misfire, so I did what most normal folks would do... change plugs and coils. no help there. the car started idling crazy rough and I took it to my mechanic. did a compression test... 180 in cylinders 2, 3, 4 - 50 in cylinder 1. did a leakdown test and she was leaking past the rings. my mechanic has a great relationship with BMW and was able to get me a brand new motor. cost effective and not dumping money to labor just to rebuild.

long story to say, IMO with our motors, datalog often. 22psi on stock internals is the highest I would want. anything above is flirting with danger.

when I was running JB4, I was running 22psi with a downpipe and stage 1. Stage 2 flirted with 24 and then overboosted twice which most likely caused me a motor. take caution.

I'm running BM3 stage 1 now in the safe zone. its smooth as silk compared to JB4 and I don't have to worry about excess boost.
what boost level you running in bm3?
20.5 psi ish. staying conservative
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      09-21-2018, 04:08 PM   #41
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I ran jb4 on my 320i with a Downpipe and full exhaust and drop in flatbed filter. I had a custom map running 26psi which sometimes peaked at 30psi and I used 30-40% ethanol mix. The car can handle it as I used to run this map almost every week for about 4 months. I had the car running this boost from 80000km till 95000km with no issues.
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      09-21-2018, 04:40 PM   #42
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I ran jb4 on my 320i with a Downpipe and full exhaust and drop in flatbed filter. I had a custom map running 26psi which sometimes peaked at 30psi and I used 30-40% ethanol mix. The car can handle it as I used to run this map almost every week for about 4 months. I had the car running this boost from 80000km till 95000km with no issues.
Do you have logs to back this up? I've only seen logs of people blowing over 24psi unless we're talking a huge difference in sea level.
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      09-22-2018, 03:13 AM   #43
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Do you have logs to back this up? I've only seen logs of people blowing over 24psi unless we're talking a huge difference in sea level.
Howzit Bro,

Heres a few logs. i dont have logs for up to 30psi as these were once in a while over boosts. as you can see my boost limit was set to 32 (31.9) psi as at anything lower the jb4 kept switching to map4.

The N20 is really strong and with my custom map, i beat a lot of fast cars even diesel cars with BT. On the TOP my car should hit limiter quick n fast lol

My Map 7 on a dyno made 224wkw and 450nm. With my custom map 6 i never dyno it but am sure i made around 230wkw and around 490nm
Attached Files
File Type: zip BMW F30 320i N20 jb4 logs- HIRRS-ZN.zip (18.4 KB, 142 views)
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      09-22-2018, 11:44 AM   #44
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Quote:
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Howzit Bro,

Heres a few logs. i dont have logs for up to 30psi as these were once in a while over boosts. as you can see my boost limit was set to 32 (31.9) psi as at anything lower the jb4 kept switching to map4.

The N20 is really strong and with my custom map, i beat a lot of fast cars even diesel cars with BT. On the TOP my car should hit limiter quick n fast lol

My Map 7 on a dyno made 224wkw and 450nm. With my custom map 6 i never dyno it but am sure i made around 230wkw and around 490nm
I mean, your safety limit is at 31.9 but you don't get anywhere up there. Also, 224/230kw doesn't back up 30psi either.
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