|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Mike/Terry, can you please join this discussion?
|
|
02-23-2011, 11:21 PM | #1233 | |||||||||||||||
Captain
26
Rep 941
Posts |
Quote:
1.Originally Posted by Sevak Here is my short story. I have been running Stage3 with meth 17psi to 14psi at redline with 18 ohm mod for some time now without problems and the car was running strong. I wanted some more power so I installed 12 ohms to increase boost up a little a month ago and it has been around 18-18,5psi but holding that until 6500rpm. I have a Coolingmist meth kit with M8 nozzle and 95% meth with a flow safety system but when logging I turn the safety off. Also I recently learned I had the safety setup too weak with only 150ml/min safety when it should be four times that for these higher boost levels I run now. But I dont thinkt this is the problem. Also I have nerver log timing. BMS has been kind to me whit support and everything. Im the one wanted the car faster. I think if you dont want to break anything run stage3 max boost 16 psi and 13,5 at redline. If you run meth you must have a failsafe and max boost 17 psi and 14.5 at redline. Also BMW limits power much lower for a reason so who knows how long it will last even if everything is done perfectly. Quote:
Quote:
Quote:
and the band plays on, etc. etc. You can't jump out of an airplane and expect that an umbrella is going to keep you from hitting the ground hard. 2. upgraded turbos=uncharted territory Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
|
|||||||||||||||
Appreciate
0
|
02-23-2011, 11:24 PM | #1234 |
Captain
26
Rep 941
Posts |
|
Appreciate
0
|
02-23-2011, 11:43 PM | #1235 | |
3475
Rep 79,211
Posts
Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
|
Quote:
Still interesting how they both switched to a different tune after though. I wonder why they would switch..... Any guesses? |
|
Appreciate
0
|
02-23-2011, 11:48 PM | #1236 |
MAAD HEAD
65
Rep 1,122
Posts |
Up to 18 is good midrange but massive taper to about 11 at 6k would b smart...with meth I've seen 20 mid with 12-12.5 taper up top....
__________________
F10 M5 e70 X5M
Sold E90 335i |
Appreciate
0
|
02-24-2011, 01:14 AM | #1238 |
Colonel
211
Rep 2,799
Posts |
Why do you say that? my car is a 2010 with 11k miles on it? and i'm running a tune which controls timing.
__________________
thanks to MGallop |
Appreciate
0
|
02-24-2011, 06:28 AM | #1239 |
Captain
26
Rep 941
Posts |
don't know. I wish they would both run 22 psi and meth with no failsafes so we could do an apples to apples, but I think we all know that ain't gonna happen. Oh yeah, and don't forget to open up those other tunes and solder different resistors on them to defeat the built in hardware safeguards! LOL.
Last edited by Morpheus; 02-24-2011 at 07:00 AM.. |
Appreciate
0
|
02-24-2011, 06:43 AM | #1240 |
Brigadier General
106
Rep 3,460
Posts |
|
Appreciate
0
|
02-24-2011, 07:55 AM | #1241 | |
Joint Chiefs of Staff
5067
Rep 116,213
Posts |
Quote:
With Enrita's situation there were so many points of possible failure that its really disingenuous to blame any one, especially as there is no proof of what actually happened. Mike |
|
Appreciate
0
|
02-24-2011, 08:47 AM | #1243 |
Major General
161
Rep 7,377
Posts |
Sevak's engine was never opened . It was sent directly to BMW germany and he got a new rebuilded one. the only thing the dealer could see is loss of compression on cylinder 5 i think.
__________________
07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
|
Appreciate
0
|
02-24-2011, 09:00 AM | #1244 |
Captain
87
Rep 949
Posts |
Mike - I really find it entertaining to watch the smoke and mirror responses you put up. As someone who tunes as a hobby and as a fun side job on multiple platforms including DI, EFI and even old school carburated with fuel and timing resolutions that make an 12x12 table look ENORMOUS - I just can't believe that someone who is "in the business" can stomach all the nonsense you spit. Irregardless of how capable the DME is or isn't at pulling timing and adapting - the GOAL of tuning is to make efficient power and prevent knock events. When I tune my car, a customers car, ANY car - if it EVER has signs of knock I adjust the tune to fix it and by fix it I mean a solid gap between the knock threshold and the timing I leave in the tables. Now you can say "oh well the stock dme runs this way and it was designed to do this and it works really great" and even your typical "show me proof as there are 1000s of JB tunes out there and no failures". That is just a terrible response because it shows you are either really that dumb when it comes to tuning OR extremely unethical because a failure isn't the only indicative measure of an improper tune. I am sure you'll come back at me with your normal pony tricks to spin what I am saying to look like I am hating or bashing or whatever. I am simply stating fact. It doesn't matter what car on what platform on what motor - engine tuning is a concrete topic. Spark, air, and fuel. ECU logic comes into play alot these days but the ECU logic I speak of can't be controlled by a piggy back which is why flash tuning or standalones for the most part are often more powerful (and by powerful I don't mean make more power - I mean more control and safer methods of making that power). Piggybacks offer integration advantages over flashes sometimes but an incomplete piggback solution that allows the car to knock and justifies the lack of timing control abilities as "the DME is so good at it" is just scary. You are lucky on this platform that people don't understand tuning at all and think you are actually a smart guy because the rest of the tuning community would call you a joke and a scammer of sorts (the fact that you may knowingly say all the bs that you spin to help you sell products).
Anyways - aside from any hate and bashing - the moral of the story is the basics of tuning. Anyone willing to learn will hopefully see through peoples hate and what you like to call fanboy-ism and just realize that engine tuning isn't something new - it isn't something reinvented on the bmw - its just something that most here don't know about and should learn because timing is crucial. Just because a product makes power and doesn't blow a motor doesn't mean its a good product. It means the DME is using the safety logic coded into it to prevent failure (which in my opinion shouldn't ever need to be in play because a good tune would prevent the occurences that trigger it to be used). It means the engine is stout and can take the abuse. I don't care what people do. I gain nothing by what tune people go with. But people should learn and make educated decisions - not decisions based on bad advice they get from a salesman who is like the guy from that movie Thank You for Not Smoking. At the end of the day I don't think there is a complete tuning solution on this market yet. I think some are better than others and some shouldn't be called a tune. I can't wait for the day that a tune is actually available and lets me tune the car myself. It seems like Shiv mentioned he may do this but Feb has come and is nearly gone. Cobb will eventually release ATR and that will allow us to tune our cars to run as intended (instead of blanket OTS tunes designed for 1000s of cars to run on). So don't think I am picking on you for the fact that I am a fan of another tune - because as of now I still say there is no COMPLETE tuning solution on the market - some are just closer than others. Last edited by Jake@MOTIV; 02-24-2011 at 09:07 AM.. |
Appreciate
0
|
02-24-2011, 09:24 AM | #1245 |
Captain
26
Rep 941
Posts |
You may gain nothing depending on what tune other people run, but we as a community all benefit when there is more than one tuning solution. Features and development are up and prices are down. Good support and upgrade paths. I shudder to think what would happen if one person held all the cards.
I don't understand this tune bashing. If you are happy with your tune-great! Why bash another option when it's helping to keep yours affordable and in constant development. I'm happy with my JB. I know basic tuning principles. I don't get on forums and bash procede, Cobb, giac, etc. It's counterproductive for all involved. Now if there were motors blowing left and right-average joes like me just looking for 80 or so horsepower, then yeah, I might see it as a civic duty. But as is, it's highly suspect. |
Appreciate
0
|
02-24-2011, 09:52 AM | #1246 | |
Captain
87
Rep 949
Posts |
Quote:
But you say you understand basic tuning principles. I find that suspect. I have a rather indepth understanding as I have been doing it for a decent amount of time and doing it as more than a hobby. Your statement about engine failures is just a very poor justification to anything I have said. Engine failure shouldn't even be a topic. This engine doesn't "fail" because it is stout and the dme has good safety logic. I say this because you rely on that logic when real tuning uses that logic as a backup - not as a source for tuning. You can be annoyed with me and hate me all you want - but everything I say is based of tuning fact - not opinion. Safety logic is just that - programming in the dme or any ecu that is there in case something happens and it prevents failure. Our dme is good at that - it shouldn't be used as the primary source to tune the timing curve of the car - it should be used in case the timing curve that your tune actually calls for sees an occurence that is causing conditions in which knock is present. To sum things up - I said engine failure shouldn't be a topic. That is not how you classify a good tune or a bad tune. That is the end result of misuse, abuse, or a HORRID tune or catastrophe. Knock is knock. Knock isn't some imaginary thing that we use to describe a situation. Knock creates wear inside a cylinder. As knock occurs in lower power settings (i.e. stock boost) it does a certain amount of wear or damage- this could be negligeable because the motor is so stout - but it still causes wear. As knock occurs in higher power settings it does more "wear" than it did at stock boost levels. Over time wear adds up - whether that means consuming oil faster, running a little hotter, creating higher % in a leak down, or compounding results of all of these - knock is NOT in any way shape or form harmless. That is physics and that is fact. Knock doesnt give a shit if it is in a geo metro or a bmw n54. So ya - theres a little more info. |
|
Appreciate
0
|
02-24-2011, 09:58 AM | #1247 | |
Major
53
Rep 1,357
Posts
Drives: '08 e92 335i COBB 4.01 Stage 1
Join Date: Aug 2008
Location: Bay Area, CA (Alameda)
|
Quote:
People have been calling out on the JB tune since it's not able to control timing. Have you seen the graphs posted here with the timing dips? That's what you are likely to see if you are running the tune. And, just because there aren't any catastrophic failures DOES NOT mean it's the correct way to tune a car. Every tune seems to knock, but the JB knocks A LOT MORE than the other tunes. |
|
Appreciate
0
|
02-24-2011, 10:08 AM | #1248 | ||
Captain
26
Rep 941
Posts |
Quote:
|
||
Appreciate
0
|
02-24-2011, 10:12 AM | #1249 |
Captain
87
Rep 949
Posts |
Read post 1274. You made some statements directed at me. I responded. Hopefully you see this as a discussion (specifically between you and I) and not an arguement. I am sincere in my efforts to epxlain engine tuning and what constitutes "failure" as an engine failure isn't what you look for with how good or bad a tune is. If people only looked for engine failures to see how good or bad a tune was - the concept of knocking wouldn't exist.
|
Appreciate
0
|
02-24-2011, 10:26 AM | #1250 | ||
Captain
26
Rep 941
Posts |
Quote:
|
||
Appreciate
0
|
02-24-2011, 10:56 AM | #1251 |
Captain
87
Rep 949
Posts |
so much for an honest discussion lol...apparently you'd rather get angry / frutsrated and resort to name calling and childish remarks -> "pissing contest" - instead of discussing things and maybe shedding light on something i never thought about or missed - i love to learn so discussions always intrigue me - guess you weren't intersted...
|
Appreciate
0
|
02-24-2011, 10:57 AM | #1252 | |
Lieutenant Colonel
71
Rep 1,568
Posts |
Quote:
You are right...and Terry should be on his hands/knees everyday praying and thanking the BMW engineering gods for designing such a good knock sensor and DME with proper logic to save its ass when he asks it to run 14-17psi of boost with no timing control whatsoever.
__________________
2020 M340i: Dravit Grey Mettalic. Loaded.
|
|
Appreciate
0
|
02-24-2011, 11:00 AM | #1253 | |
Major
53
Rep 1,357
Posts
Drives: '08 e92 335i COBB 4.01 Stage 1
Join Date: Aug 2008
Location: Bay Area, CA (Alameda)
|
Quote:
The tune works, but it's working without using all the principals of tuning- specifically timing. And, I said this before, I wish someone else singed up in this form from JB (maybe one of their engineers or someone else with tuning knowledge) to discuss these terms. Because frankly speaking, how can you accept what a person is saying without tuning experience? Are you going to accept someone's medical diagnosis if they have no medical background? Shiv can be seen as a salesperson, but he also is the one the tunes the product and has tuning experience. |
|
Appreciate
0
|
02-24-2011, 11:07 AM | #1254 | |
Captain
26
Rep 941
Posts |
Quote:
|
|
Appreciate
0
|
Bookmarks |
|
|