N54 Syvecs is dead

[Flinchy]

PI sadly will never be controlled directly by the stock DME because the MSD81 just doesn't have the mosfets / hardware to drive the injectors. That doesn't mean a better PI controller / intermediate box could not be built with DME integration, giving the same end result

As for the other 3 items, I don't see why they would not be possible.

I thought that's all anyone really wants? Not directly driving the injectors, but.. the DME controlling the controller I guess? So it can be actively aware one way or another as to PI Flowing.

 

[Bigdaddyaaron]

Depends on your goal. The single supports 600whp on e85. On Race gas 800whp+

800 on race gas? any more info on that run?

 

[Levanime]

sorry for noob question,
but i was always wondering, why cant PI controller monitor DI signal, and cut the PI flow if it sees a cut on DI accordingly? i mean per cylinder

whats the technical problem with it?

 

[Kenjermen]

So the bases behind the Syvecs was to be a standalone, not a piggy back system. If you want something like this to be a piggy back system get a Haltech from AD-E which he sells the wiring harness as well so it's just plug and play like the jb4. I have this on my car and it's awesome I stack it with a mhd/wedge tune.

 

[Levanime]

interesting,

would be nice to have thread with discussion what are the differences between JB4 and Haltech

 

[Flinchy]

800 on race gas? any more info on that run?

Don't think there's been a run on the system.. more the fact race gas needs 30-40% less flow than E85 so that translates pretty directly to power capacity.

Whether the engine can take the added heat well compared to E85 though...

 

[Jake@MHD]

sorry for noob question,
but i was always wondering, why cant PI controller monitor DI signal, and cut the PI flow if it sees a cut on DI accordingly? i mean per cylinder

whats the technical problem with it?

Because they wouldn't be spraying at the same time, due to DI injection window and PI needing more time open due to less pressure and how it pools fuel up on the valve etc.

 

[Terry@BMS]

Cutting power to the coils during a misfire or imposing a 3000rpm rev limiter sounds like the best option at this point. I've been working on OBDII mode6 data lately for an emissions legal project. I suspect we can monitor the internal misfire counter via mode6 and then trigger the rev limiter before the car actually triggers a misfire.

 

[doublespaces]

Cutting power to the coils during a misfire or imposing a 3000rpm rev limiter sounds like the best option at this point. I've been working on OBDII mode6 data lately for an emissions legal project. I suspect we can monitor the internal misfire counter via mode6 and then trigger the rev limiter before the car actually triggers a misfire.

Where would something like that fit into your to-do list priority?

 

[Terry@BMS]

With N54 development I've been knee deep in virtual flex fuel sensor logic, and user adjustable PWM meth control, but when those are off my plate I see that as the next big thing to work on.

 

[Omar@VaderSolutions]

With N54 development I've been knee deep in virtual flex fuel sensor logic, and user adjustable PWM meth control, but when those are off my plate I see that as the next big thing to work on.

Question.....with all these new cars being released ... how busy is the n54 keeping you at this point ? Are you still trying to "develope" new things for this platform or have you moved onto other things ? Obviously I see you trying to improve the jb4

 

[Terry@BMS]

In any given week I spend a few hours with each platform. Some features like the new PWM meth implementation happen to apply across all platforms which is always nice. Other things I work on are say N54 or N55 specific. I keep a full plate and enjoy it that way.

Jason who handles a lot of our hard part development is hard at work too... Teaser shots of our upcoming stealth F10 water/meth tank I approved to move forward today.

 

[doublespaces]

In any given week I spend a few hours with each platform. Some features like the new PWM meth implementation happen to apply across all platforms which is always nice. Other things I work on are say N54 or N55 specific. I keep a full plate and enjoy it that way.

Jason who handles a lot of our hard part development is hard at work too... Teaser shots of our upcoming stealth F10 water/meth tank I approved to move forward today.

The concept of a stealth tank is sweet, since I don't know the f10 trunk area, where does this fit exactly? Any hope for an E93 stealth tank?

 

[Terry@BMS]

Under a panel in the trunk:

We did one for the F30/F80 and its been hugely popular:

 

[doublespaces]

Under a panel in the trunk: View attachment 2290

We did one for the F30/F80 and its been hugely popular: View attachment 2291

Well if you're able to make one for the E93, I'm all ears. There just isn't enough room to spare in a convertible, but I'd assume that market is too small and too late.

 

[Terry@BMS]

Yes we have to project around 200 tank sales within a few month period to make it practical to produce.

 

[doublespaces]

Yes we have to project around 200 tank sales within a few month period to make it practical to produce.

I can only promise you one so I may be on my own. Is there another material which could be fabricated to fit in those spaces which is methanol tolerant? Obviously molds are not possible for a one off situation.