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BMW 3-Series (E90 E92) Forum
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Helix 335i Traps a best of 113.1mph and best ET of 12.8
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11-06-2007, 05:57 AM | #46 | |
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Don't let the craziness here bother you. There are a lot of guys like me that are interested. Code free is critical to me as I do not want a CE on a 45k car starting me down. From a tuning standpoint, sounds like you have worked on a number of things. I am not sure if you are familiar with Powerhouse Racing out of NM (now I think), but my IS300 was tuned by Jarrett at PHR. I was the beta car for their IS300 kit a few years back. My car was tuned on a Motec M4, made around 550 rwhp and boy I loved that thing. It was sad to let go. I know tuning on Motec is not for everyone, but those that can work with it are normally some of the best around. |
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11-06-2007, 06:29 AM | #48 |
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as i said we have the full ability to control the solenoids directly and probably will in the future as it is right now we have very stable smooth power delivery with the ability to control how much or how little boost we want in a tuned manner. what problems were others seeing with tuning the boost this way?
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11-06-2007, 06:41 AM | #49 | |||||
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its basically a quick glance under the hood to a dead givaway that you have a piggyback installed... bypassing a solenoid just seems like a step backwards... considering other piggybacks are moving away from this already. It also has been said to cause the lag, or "surge" of power... some blame limp mode on this method of boost control too... since its not as precise i never did like the idea of bypassing parts of my cars boost control system to be able to more easily trick it... if you can directly control the wastegates... by all means... do it. Its the biggest advantage that a procede v2 has right now... since the current xede hardware doesnt have enough i/o's to be able to do it. Quote:
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11-06-2007, 07:19 AM | #50 | |
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Please don't use other piggybacks as a baseline to judge ours. Our piggyback has not lag or check engine lights as the boost control is done in a tuned matter. The interesting thing to note here is that even if we decided to control boost directly our analog maps would look the same as we achieved the boost response curve we were after. One thing that you lose when taking over boost is the factory overboost failsafe, which then puts the overboost protection to the throttle body. I don't know nor do I care why other tuners have had issues tuning this car in this manner, all I know is its working perfectly for us as proven by dyno as well as track times. If maintainig a stock look is a concern I'm sure I can maintain that look with some creative vacuum routing.
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11-06-2007, 07:25 AM | #52 | |
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11-06-2007, 07:46 AM | #53 |
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we noticed overshooting and erratic boost. Our computer, tuning methodology and wiring are different than others, all I ask is you let our results stand on their own.
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11-06-2007, 10:20 AM | #54 |
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Drives: TiAg E92 335
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Its not a deal breaker for me, but I would prefer if you were able to use both solenoids. If for nothing else (ie. you can get the same spool up as stock, and hit your boost targets), then it would be less of a PITA when putting the car back to stock when bringing it in for mandatory service.
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Berlina Black S2000 CR is now in the garage l 19" Rial Daytona Race l KW V2 l Eisenhaus Race Exhaust l |
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11-06-2007, 10:55 AM | #55 | ||
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aaron
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11-06-2007, 10:55 AM | #56 | |
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Procede is a more R&D software than the average chip or piggyback in the market. Procede has been tested on Vishnu's car (BMW 335i) and on their own dyno. Vishnu already made huge power a long time ago or you don't recall that. Give yourself sometime to do some research before you talk smack about Vishnu. |
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11-06-2007, 11:01 AM | #57 | |
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I am sure the car feels great, and is wicked fast... I am just saying that spool up does appeaer to be affected by the solenoid bypass, where the green line dips BELOW the red line |
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11-06-2007, 11:24 AM | #58 | |
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11-06-2007, 12:09 PM | #59 | |
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great work by the way... and thanks for being upfront and honest with your responses... |
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11-06-2007, 12:21 PM | #60 | |
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Berlina Black S2000 CR is now in the garage l 19" Rial Daytona Race l KW V2 l Eisenhaus Race Exhaust l Last edited by BoostedBMW; 11-06-2007 at 01:16 PM.. |
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11-06-2007, 12:50 PM | #61 | |
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I'm very impressed with what Helix has done in such a short time, but I am curious about this solenoid bypass. |
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11-06-2007, 01:58 PM | #62 |
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+1..I think most of us want to see that..
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