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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Vishnu FlexFuel Review



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      08-17-2012, 08:58 AM   #67
JamesM3M5
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Originally Posted by atomos319 View Post
I think the biggest advantage I see with this new Flex-Fuel system (aside from the silly gas monitoring that can be a real PIA) is for the non-technical people like me. Sure, My car made 415 WHP on a E85 mix, but it was lean as f@#* and inconsistent. I don't know how to tune this out by playing with the tables. I've seen a few other post like this as well- not all of us are tuning wizards. Unless you are willing to play with the tables yourself, 400+ whp is hard to accomplish safely and reliably.
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Originally Posted by Myaddiction View Post
While I don't agree with all that's been said on here lets all just admit that this set up doesn't provide much additional power over a "regular" procede running the e85 compatible map or a JB4 running on e85. You can match the power with a cobb/piggy stack tune.

What it does is provide a seamless system for those that simply want to put gas/e85 in their car and not worry about it. Which I think is a great development for our motors. If that is worth the extra cost is up to the individual.
You guys "get it." The other forums are rampant with Vishnu-haters, and the comments boil down to their opinions that Shiv is a sheister marketing to "morons" and "idiots," and anyone can do the same without the flexfuel setup. You CAN get the exact same results on your own without the flexfuel setup - no one is claming you cannot - but the nice addition of the FF sensor means it is literally gas and go. Stock turbos seem to max out at about 50/50 E85/gas, and that's great. Hopefully BrianMN/Vishnu higher ethanol testing on more modified cars will yield easily reproducible, consistent, and safe tuning.

I wonder what gains E85 can have for more modified cars? So far the FF system on nothing but a DCI car seems enticing.
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      08-17-2012, 10:43 AM   #68
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Originally Posted by JamesM3M5 View Post
You guys "get it." The other forums are rampant with Vishnu-haters, and the comments boil down to their opinions that Shiv is a sheister marketing to "morons" and "idiots," and anyone can do the same without the flexfuel setup. You CAN get the exact same results on your own without the flexfuel setup - no one is claming you cannot - but the nice addition of the FF sensor means it is literally gas and go. Stock turbos seem to max out at about 50/50 E85/gas, and that's great. Hopefully BrianMN/Vishnu higher ethanol testing on more modified cars will yield easily reproducible, consistent, and safe tuning.

I wonder what gains E85 can have for more modified cars? So far the FF system on nothing but a DCI car seems enticing.
Have to agree with this. I am working on an E85 map on my AP and worry about having to do it again when they change the gas and ethanol formulations for the winter. In many ways, I'd rather not have to worry about it.

As an aside, thanks, Shiv, for sharing your tuning philosophies on this incredible fuel. It is a benefit to the community.
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      08-17-2012, 10:50 AM   #69
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BrianNM sent me a bunch of Dynos/datalogs earlier today. He is running 50/50 mix with the Procede/ProceseFlash combo with FBO mods. With and without meth at different boost pressures. At low boost (16psi peak) without meth it made 430whp. With meth at full boost (19.5psi peak) it made 450whp. I'll post logs and Dynos when I get back to the US tomorrow. There are at least 10 pulls/logs.
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      08-17-2012, 10:57 AM   #70
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Originally Posted by JTracy223 View Post
@Benzy89
Where is this E85 gas station exactly lol
Are you refering to the Vine St location?
I wish there were more E85 locations in our area.... Especially in South Jersey
Yea, Center City Shell (1135 Vine Street, Philadelphia, PA 19107). E85 is nearly non-existent in NJ -- there's the ghetto gas station in East Orange (which I started with, would bring a 5 gallon tank there) & then the Gulf Station at the Newark Airport.

And that's all I know
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      08-17-2012, 04:33 PM   #71
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Quote:
Originally Posted by shiv@vishnu View Post
BrianNM sent me a bunch of Dynos/datalogs earlier today. He is running 50/50 mix with the Procede/ProceseFlash combo with FBO mods. With and without meth at different boost pressures. At low boost (16psi peak) without meth it made 430whp. With meth at full boost (19.5psi peak) it made 450whp. I'll post logs and Dynos when I get back to the US tomorrow. There are at least 10 pulls/logs.
Nice! Peak boost is somewhat meaningless when talking peak whp. I want to see the boost/timing @ the peak whp rpm!!
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