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Tuner Says jb3/4 is horrid?!?!
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06-07-2012, 03:50 PM | #67 | |
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Not sure I understand your last remark, inside joke? |
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06-07-2012, 03:51 PM | #68 | |
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06-07-2012, 03:55 PM | #69 | |
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And no inside joke. 6AT cars have negative ignition in multiple cylinders after an upshift seemingly at random. Even Cobb did it between 6000-6500 RPM RB turbos or stock. So far no flatline on the JB4 G5 for me.
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06-07-2012, 04:29 PM | #70 | |
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06-07-2012, 04:45 PM | #71 | |
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I digress, the block can handle it though. My question is have you dynoed your ignition advance on a mustang? Before and after. That will stress test the car more so than a dynojet. There is a reason cobb runs 11 degrees at redline meth or not.
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06-07-2012, 04:46 PM | #72 | |
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06-07-2012, 05:00 PM | #73 | ||
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Also worth mentioning that running advance (more timing that stock) is worth 10-15whp when running a 50/50 E85 blend. Quote:
Also, a mustang dyno does not necessarily induce more load or stress than a dynojet. Everything depends on the ramp up rate/run duration. I can't speak for what others do. But I know what they don't do: and that is offer an engine control system that reliably supports 600+whp on a stock n54 block in customer cars. On a serious note, I don't look at what others do or don't do to determine what is "correct." Instead, I test things myself in every condition I have access to. And i don't pussyfoot the accelerator either. Running additional spark advance when called for isn't unique. The key is to design a control system that calls for it when, and only when, it is welcome. Shiv |
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06-07-2012, 05:58 PM | #74 | |
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06-07-2012, 06:53 PM | #75 | ||
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If you simply said, "sorry, we messed up, we're going to provide all current owners of JB4's with free CPS modules", then I would have a lot more respect for you. However, defending your lack of knowledge when it comes to proper tuning principles by suggesting that a concept is "foreign" to tuners like Cobb and Vishnu who have a lot more experience than you is not funny, it's distressing. Quote:
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06-07-2012, 07:29 PM | #77 | |
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EDIT: Especially coming from someone who didn't have a single nice thing to say about the JB4 (or the people selling it) a couple of years ago...that would make a very smart PR move. Thread linked in my earlier post.
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06-07-2012, 08:15 PM | #79 | |
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PROcede Rev3 V5 | AE Quad Exhaust | BMW Performance Short Shift Kit | Gunmetal 19" M3 GTS Wheels | BF Goodrich g-Force T/A KDW 2 | AST 4100 Coilovers | Swift Springs F:280 R:560 | ER Charge Pipe | Tial Blue BOV | VRSF 3" Downpipes | VRSF 7" Intercooler http://www.e90post.com/forums/showthread.php?t=782212 |
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06-07-2012, 08:25 PM | #80 |
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06-07-2012, 08:29 PM | #82 | |
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06-07-2012, 08:38 PM | #83 | |
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I ran a JB3 1.2F beta back in 2008 when I first got the car. Was ok on pump gas but started causing all sorts of bogging and boost targeting problems on meth so I switched to the Procede V4. Ran well on my manual 135i, no issues. Traded in for an auto 335i, the Procede V4/V5 was a nightmare. First, it misfired and confirmed tune related. Then it flatlined like no tomorrow. Shiv blamed meth kit. Tried out the JB4. Still flatlined but not as bad; hated the WGDC cap. Went Cobb, can control when I flatline or not so it was better than the other options. Upgraded to RB turbos, no ATR so couldn't dial in WGDC properly for my tighter-than-normal wastegates. Got a JB4 G5 from Terry (box only as I still had my old JB4 harness) modified the harness, plugged it in, worked perfectly, no flatline. All the issues I had with the JB3/4 back in 2010 were addressed with the G5 box. Tunes change and improve, as I'm sure the Procede has. If it ain't broke, don't fix it is my motto. Heck, I don't even datalog my car anymore because it just works well (much to Terry's chagrin). I hope that helped you understand how long I've been around, Ashwin.
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06-07-2012, 09:02 PM | #84 |
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Thanks Themyst, I realize you've been around for a while and you certainly bring a lot to the table. I've learnt a lot from reading your posts. However, if you question someone's integrity, I believe the same scrutiny should be applied to you. Your response above does not address my point. However, I want to reiterate that I am grateful for the knowledge you impart on this forum.
Anyway, I don't want I start an argument for arguments sake. For that reason, I'm just going to ignore the other two poster's incomprehensible comments...
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06-07-2012, 09:10 PM | #85 |
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Sorry, one more thing. I'm not sure what kind of point you're trying to prove by addressing me by name. That information was disclosed illegally by the moderator of another site. If I were you, I wouldn't want to be associated with that.
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E92 335i 6MT | Balloon White | Black Dakota Leather - Sold
PROcede Rev3 V5 | AE Quad Exhaust | BMW Performance Short Shift Kit | Gunmetal 19" M3 GTS Wheels | BF Goodrich g-Force T/A KDW 2 | AST 4100 Coilovers | Swift Springs F:280 R:560 | ER Charge Pipe | Tial Blue BOV | VRSF 3" Downpipes | VRSF 7" Intercooler http://www.e90post.com/forums/showthread.php?t=782212 |
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06-07-2012, 09:17 PM | #87 | |
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E92 335i 6MT | Balloon White | Black Dakota Leather - Sold
PROcede Rev3 V5 | AE Quad Exhaust | BMW Performance Short Shift Kit | Gunmetal 19" M3 GTS Wheels | BF Goodrich g-Force T/A KDW 2 | AST 4100 Coilovers | Swift Springs F:280 R:560 | ER Charge Pipe | Tial Blue BOV | VRSF 3" Downpipes | VRSF 7" Intercooler http://www.e90post.com/forums/showthread.php?t=782212 |
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06-08-2012, 12:55 PM | #88 |
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Never owned a BMS product like the JB3/4. But if there was anything 'sh!tbox' worthy to be said it would have been noted by Shiv/Vishnu tuning as they are the direct competitor. And even Shiv would acknowledge that the JB3/4 is far from a shitbox. He would mention it has deficiencies but I seriously doubt he would classify it as a sh!tbox. That subaru guy is scared of it.
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