RB Classics results (Teaser Results)

[sublian]

My bad, I believe the issue is with using meth, not E85..I've actually switched off my boost juice anyway.

[martymil]

If someone came up with a big Di injector pump we could ditch the Pi and run plenty of meth with no issues

All problems solved

The problem is we have three seperate computers trying to control fuel flow while talking to each other

You have the ecu, jb4, pi controller and a crude meth setup

There's is always going to be a small delay and that's where the problem is.

[martymil]

What went wrong with the shotgun pump system on your car sublian ?

[sublian]

Hmm, where do I begin? Anyway I'll let Justin tell you mate. Or PM me. Let's just say I'm probably lucky to be alive today .

[flinchy]

Originally Posted by martymil

The best you can get Wagner tube and fin

nowhere near the biggest or best now

https://www.facebook.com/Horsepower-...1045639582958/

not exactly the cheapest though :P

Originally Posted by martymil

If someone came up with a big Di injector pump we could ditch the Pi and run plenty of meth with no issues

All problems solved

The problem is we have three seperate computers trying to control fuel flow while talking to each other

You have the ecu, jb4, pi controller and a crude meth setup

There's is always going to be a small delay and that's where the problem is.

do you read the other forum at all?

they're still in the process of working out the tables/tuning, and whether they've now hit the injector limit, since the numbers aren't adding up. No way of getting the shotgun setup to trigger reliably since BMS doesn't yet see the point in making firmware to control the secondary HPFP, and the injectors can't use much more fuel - though apparently the "single barrel" works well enough.

if that gets solved and the injectors aren't a limit and it's actually worth going twin pumps, the JB4 will probably get some firmware to control pump#2, and then it's happy days

but.. it's probably a small step from there to go a syvecs, and you get full control over all port and direct injectors anyway plus the other benefits, even if technically port injection is inferior to direct.

Originally Posted by sublian

Hmm, where do I begin? Anyway I'll let Justin tell you mate. Or PM me. Let's just say I'm probably lucky to be alive today .

sounds interesting.. i didn't know any had even got out into the wild since it doesn't seem like the best option still anyway

[martymil]

If the syvecs turns out to be as good as they say it is it will be a major turning
point in tuning of our cars

For 99% of people on here mhd is more than ample

Once you start hitting huge power levels mhd is very limited and needs a Pi and/or a jb4 and controlling it safely is going to be a huge issue

Look at my other thread and what it done to my manifold

Syvecs should be the answer how good who knows

Our cars where never designed to run this sort of power
and trying to control pi with piggy backs is crude and something
that was done in the early 90's before aftermarket tuning was
made available

[DR-JEKL]

Originally Posted by martymil

If the syvecs turns out to be as good as they say it is it will be a major turning
point in tuning of our cars

For 99% of people on here mhd is more than ample

Once you start hitting huge power levels mhd is very limited and needs a Pi and/or a jb4 and controlling it safely is going to be a huge issue

Look at my other thread and what it done to my manifold

Syvecs should be the answer how good who knows

Our cars where never designed to run this sort of power
and trying to control pi with piggy backs is crude and something
that was done in the early 90's before aftermarket tuning was
made available

Im hoping the syvecs will transform the platform for the big HP guys, and like anything as the technology progresses becomes cheaper.

Will be certainly interesting to see how this all pans out.

I agree regarding the PI controllers, like meth I dont like all these added items making things more complicated yet also crude as mere band aids.

Alas for the time being it seems this will be the best option for high HP demands for fuelling... Wouldn't it be great if one could get a larger HPFP to maximise DI fuel demand (supposedly the N54 piezo injectors can flow enough fuel to support 1000HP - who knows how true that is!)

[martymil]

The solution is a larger hpfp, to bad no one is going to make one for such a small market

I'd be willing to pay through the nose for one to simplify all this unnecessary hardware

Getting rid of all these piggybacks is so much safer and getting decent tuner that know how to do this is another thing

There is only two tuners I know of that could do the syvecs system properly and both will cost a left kidney

[DR-JEKL]

Originally Posted by martymil

The solution is a larger hpfp, to bad no one is going to make one for such a small market

I'd be willing to pay through the nose for one to simplify all this unnecessary hardware

Getting rid of all these piggybacks is so much safer and getting decent tuner that know how to do this is another thing

There is only two tuners I know of that could do the syvecs system properly and both will cost a left kidney

Hmm one would think it wouldnt be so easy to develop a bigger HPFP otherwise VTT would have done it rather than his shotgun kit or someone such as motiv would have developed one instead of PI or steve from fuelit definately would have done it

TBH Its something I've never really considered, may be a space restriction is the issue... perhaps a new thread in the n54 technical section should be created posing this Q?

[martymil]

Definetly no space restriction

There is enough to room there for two pumps

[DR-JEKL]

Originally Posted by martymil

Definetly no space restriction

There is enough to room there for two pumps

http://www.e90post.com/forums/showpo...28&postcount=6

Perhaps syvecs could help run two pumps?

[martymil]

The whole thing is it's not that we can't get the pressure to them, it's controlling the injectors

We don't have any control over them with the back end flashes or mhd

Syvecs will unlock everything.

On another forum a leading tuner got his hands on a syvecs

Happy days are coming

[135]

Originally Posted by _ink

Which is why I did this...

Originally Posted by martymil

do share

I believe it's a srt8shot ECA display.


Why do you need to see or log both meth and ethanol content in the JB4 mobile app?
The ethanol content will only change after each fill, after the new and old fuel have had a short time to mix, and then remain the same until the next fill - with the caveat that the fuel doesn't sit in the car for excessively long periods which might degrade the fuel quality / ethanol content.

Can't you just use the Bluetooth version of the Fuel-It ECA and the separate Fuel-It Ethanol Content app to get the E% and then load the appropriate tune (or make the necessary adjustments to your tune) and then notate the E% on your log comments or support requests?

According to Steve (Fuel-It) in February, JB4 doesn't auto-tune based on the measured E% itself (although it can auto-tune based on side-effects of differing ethanol content), therefore, feeding the E% value into the JB4 is of no real value.

Can the JB4 adapt to the ethanol content by automatically setting relevant boost/timing and also run meth injection in parallel?

Originally Posted by Steve

No, at this time the JB4 will display the ethanol content but it will not increase or decrease the aggressiveness of the tune based on the ethanol content. However map 5 already does that as it increases or decreases boost targets based on timing, IAT's, and so on. Adding more ethanol typically results in better timing and a lower ignition average, thus increasing the boost target.

Back in November, Steve mentioned some other integration options but I don't know what they are or when they'll be released (I haven't seen any recent ground-breaking announcements regarding this).

Originally Posted by Steve

enclosures are probably going to be ready around the end of November, our machine shop is slammed.

There will be other JB4 integration options coming down the pipe, but those are a little ways out.

[martymil]

So here are some results of what these next gens can do

[trebila]

11.41 sec & 127mph
11.80 sec & 130.1mph

power is there, need more traction, and you'll maybe get in the 10"...

[martymil]

Your a magic tuner David but I'm not going to push the car anymore, we know it can run a 10sec pass the mph is there

Don't want to destroy it, too nice a car for that.

[trebila]

I completely understand.
enjoy it.

[froop]

I don't understand!

Get that 10 lol

[martymil]

I'm mad too Alex, the track prepping is so shit it's pointless

The power, tyres and tuning is right

The Pi backfires still need sorting on a hardware/firmware level.

Not destroying another manifold and expensive lambada sensors

Maybe when the temps drop right down I might go back for another attempt

[martymil]

[Forced_downunder]

More and more that Syvecs system sounds like the way to go. Who's going first to iron out the learns? ?

[dh58]

Marty looks good. Was it wet?