[dzenno]

Ok Shiv good luck man, best to you...I'm just tired of waiting and teasers especially the single turbo projects man...especially those that vaporized without any feedback on what/how/why in the end

e30rus, go tOOn some cars buddy lol

[e30rus]

Originally Posted by dzenno

Ok Shiv good luck man, best to you...I'm just tired of waiting and teasers especially the single turbo projects man...especially those that vaporized without any feedback on what/how/why in the end

e30rus, go tOOn some cars buddy lol

oh i intend to, just as soon as u give me your toon from your car it will be officially TOONED !!thanks lol buddy!

[dzenno]

Originally Posted by e30rus

oh i intend to, just as soon as u give me your toon from your car it will be officially TOONED !!thanks lol buddy!

LOL looks like tooning not going well these days, no worries things do tend to look more complicated than they really are as you get old

Man this was supposed to be a research thread wtf did u guys do coming in here really...wow

[dzenno]

Originally Posted by shiv@vishnu

I've tested the Aeromotive in tank replacement pump and it only flows ~10% better than the stocker. And doesn't have a vent for Venturi jet which would then require an external lifter pump which gets messy. Ive also tested their in line pump and it doesn't flow well at high fuel pressure. Also tested the Bosch pump and a few others and they cause the fuel pressure control module to run too hot due to the extra current requirement. So it's a bit more work than Dzenno is suggesting. Which is why I only revealed half the work i did to him. Because I know he would be tempted to spill the beans.

Back to this comment..for the fuel pressure control module, are you talking about the fuel pressure regulator? I can only see this being a problem if you wired in a Bosch 040 pump which pumps at 92psi which is 20psi higher than stock pressure so the regulator would be bypassing quite a lot all the time...

With the Bosch 044 in the tank or inline this shouldn't make any issues for the fuel pressure regulator as it's rated exactly to spec pressure wise as the stock fuel pump...

[OpenFlash]

Originally Posted by dzenno

Back to this comment..for the fuel pressure control module, are you talking about the fuel pressure regulator?

No. I'm referring to the LPFP electronics. I believe it is EKP in BMW-speak. It is the module that drives the pump at variable DC in order to maintain the pressure target at the fuel pressure sensor upstream of the HPFP inlet

I can only see this being a problem if you wired in a Bosch 040 pump which pumps at 92psi which is 20psi higher than stock pressure so the regulator would be bypassing quite a lot all the time...

This is also very incorrect. A fuel pump doesn't pump at a given psi. System pressure is determined by the fuel pressure regulator. The 044 can just as naturally run in a low pressure system if you had the appropriate FPR with a sufficiently sized return line. The key is fuel pump selection is matching flow requirements to input voltage/DC. Too much or too little fuel flow will cause problems.

With the Bosch 044 in the tank or inline this shouldn't make any issues for the fuel pressure regulator as it's rated exactly to spec pressure wise as the stock fuel pump...

Also incorrect. The factory FPR is insufficiently sized to return the amount of excess fuel flow that the 044 will flow at standard voltages (6v and up). As a result, the fuel pressure sensor (at the inlet of the HPFP) will see implausibly higher pressures and trip a fuel pressure code which will result in the ENTIRE LPFP being driven at a fixed DC of 50-60%. Instead of ramping up to 100% at full load. Thus, defeating the purpose of installing an upgraded fuel pump.

I think you should re-title this thread because your understanding of the subject is lacking. Understandably so because you erroneously assumed that I told you everything I've learned on this subject. And then went even a few steps further at ridiculing me for "teasing" about a fuel pressure upgrade. Well, now you know that there is a bit more to the subject of a fuel pressure upgrade that meets they eye. And that upgrading the fuel system is more than just wiring up an in-tank fuel pump. If you want to talk the big talk and take shots at those who actually push the limits, be prepared to be shot down really quickly buddy. Because you don't have 1/3 the knowledge you think you have. And that makes YOU a very dangerous person to people on this forum who actually think you know your stuff. With all due respect, this is what I mean about slowing your roll.

Shiv

[Brey335i]

How would you tackle the 7v vs 12v difference? Seems like you would be running the new pump at far less than optimal capacity unless you figured that out.

[dzenno]

Shiv I dint get why you're so militant about this thing. All you EVER told me was you hinted it might be a Bosch 044 pump and THAT'S it. And that was at least 4-5 months ago if not 6...I started this thread as I wanted to see if there were people on this forum who would be interested in exploring these possibilities...I'm tired of my intake is better than yours or my fmic is better than yours threads...I never pretended like I knew SHIT about any of this or that I knew more than you and I'm surprised you took it that way...I started this thread with the subject hinting at your research as i felt it'd be funny to start it that way but in all honesty part three IMO is way overdue but let's not get in there as I also kind of understand where you're coming from...

Anyways let's try to keep this civilized please...I can change the title and reword the first post if you can point me at what I've said that was meant to ridicule...if you'll just respond to prove how little I know about this fuel system you don't need to try hard as I really don't knowing at all and thus the point of this thread...I enjoyed reading part 1 & 2, part 3 never came and now we have this thread or just post the findings and we move on...if you wish to do so by replying to my posts and saying I'm talking out of my ass so be it but if you're choosing to just sit back and work on your PWM meth and advancement of other platforms what's the issue with us talking about this and you participating

I'll end my post by saying I'm not a tuner, never thought I was, never will be...I try to understand the mods and tune I'm running on this car to the best of my ability and I don't advise anyone take my word for anything tuning related..but I'll also say that after 3.5 years with this "particular" car and more logged runs than many on this forum will ever do as well as tons of road testing/reading on the topic has made me understand what I'm running on the car to a point where certain things I can appreciate more over others especially tune wise

[OpenFlash]

Originally Posted by dzenno

Shiv I dint get why you're so militant about this thing. All you EVER told me was you hinted it might be a Bosch 044 pump and THAT'S it. And that was at least 4-5 months ago if not 6...I started this thread as I wanted to see if there were people on this forum who would be interested in exploring these possibilities...I'm tired of my intake is better than yours or my fmic is better than yours threads...I never pretended like I knew SHIT about any of this or that I knew more than you and I'm surprised you took it that way...I started this thread with the subject hinting at your research as i felt it'd be funny to start it that way but in all honesty part three IMO is way overdue but let's not get in there as I also kind of understand where you're coming from...

Anyways let's try to keep this civilized please...I can change the title and reword the first post if you can point me at what I've said that was meant to ridicule...if you'll just respond to prove how little I know about this fuel system you don't need to try hard as I really don't knowing at all and thus the point of this thread...I enjoyed reading part 1 & 2, part 3 never came and now we have this thread or just post the findings and we move on...if you wish to do so by replying to my posts and saying I'm talking out of my ass so be it but if you're choosing to just sit back and work on your PWM meth and advancement of other platforms what's the issue with us talking about this and you participating

I've kept things quite civilized in light of you calling me a liar and accusing me of misleading people. So this time, I'm taking the time out of my Sunday to tell you like it is. You can learn from your mistakes it and take it easy from this point onwards. Or you can dig your heels into the sand and try to continue this stupid conflict. I propose you do the former because you don't have the technical knowledge to cash the checks that you've been writing for the few weeks since you've deemed yourself an engine control literati on all three forums. Take half as much time learning things first-hand as you take trying to play tech-police on these forums. I don't care what you accuse me of on the other forums. But here, I'm going to correct every bit of misinformation that you knowingly (or unknowingly spread) when it comes to us or our products/development. And that'a real big waste of time for both of us.

[PlutoniumTans]

Originally Posted by shiv@vishnu

I've kept things quite civilized in light of you calling me a liar and accusing me of misleading people. So this time, I'm taking the time out of my Sunday to tell you like it is. You can learn from your mistakes it and take it easy from this point onwards. Or you can dig your heels into the sand and try to continue this stupid conflict. I propose you do the former because you don't have the technical knowledge to cash the checks that you've been writing for the few weeks since you've deemed yourself an engine control literati on all three forums. Take half as much time learning things first-hand as you take trying to play tech-police on these forums. I don't care what you accuse me of on the other forums. But here, I'm going to correct every bit of misinformation that you knowingly (or unknowingly spread) when it comes to us or our products/development. And that'a real big waste of time for both of us.

Is it true that you think Helix fmic is the best on the market ?

[OpenFlash]

Originally Posted by Brey335i

How would you tackle the 7v vs 12v difference? Seems like you would be running the new pump at far less than optimal capacity unless you figured that out.

I believe that has all been sorted out. But there are some longer-term concerns that I wanted to put to rest. Which is why I wanted to get at least 10k miles on the upgrade before even thinking about offering it for sale. Fuel systems are pretty touchy subjects among n54 owners and there is enough that is suspect among OEM components. So this is something that we are doing extra carefully. Not teasing. Just careful testing.

Originally Posted by PlutoniumTans

Is it true that you think Helix fmic is the best on the market ?

For the n54, it's the best one that I've personally tested. That only covers 3 different intercooler brands so take that for what it is worth. I would not be surprised if there are better designs out there for specific applications. But I have not tested them.

Shiv

[Brey335i]

Originally Posted by shiv@vishnu

I believe that has all been sorted out. But there are some longer-term concerns that I wanted to put to rest. Which is why I wanted to get at least 10k miles on the upgrade before even thinking about offering it for sale. Fuel systems are pretty touchy subjects among n54 owners and there is enough that is suspect among OEM components. So this is something that we are doing extra carefully. Not teasing. Just careful testing.

Shiv

I'm not really in the market for any sort of turbo project any time soon but go ahead and get your single finished. As long as you run at least 100 whp more than me on a stock motor I feel I have a good margin of safety

[FastBimmerN54]

Originally Posted by shiv@vishnu

I've kept things quite civilized in light of you calling me a liar and accusing me of misleading people. So this time, I'm taking the time out of my Sunday to tell you like it is. You can learn from your mistakes it and take it easy from this point onwards. Or you can dig your heels into the sand and try to continue this stupid conflict. I propose you do the former because you don't have the technical knowledge to cash the checks that you've been writing for the few weeks since you've deemed yourself an engine control literati on all three forums. Take half as much time learning things first-hand as you take trying to play tech-police on these forums. I don't care what you accuse me of on the other forums. But here, I'm going to correct every bit of misinformation that you knowingly (or unknowingly spread) when it comes to us or our products/development. And that'a real big waste of time for both of us.

Don't sugar coat it....let the cat out of the bag.

[ETS Michael]

Man... give the guy a break He does a lot for the community. Can't wait to see what's in store.

[Brey335i]

Originally Posted by FastBimmerN54

Don't sugar coat it....let the cat out of the bag.

You're keeping a cat in a bag? Somebody call ASPCA

lol. I for one think it's time to see ETS and Vishnu tackle this single turbo project. It's been a while in the making.

Theoretically, you should be capable of more power on the single with the same fueling. Obviously, the ceiling will still be hit at some point soon.

[e30rus]

meoww

[Mr_PharmD]

Not sure why the bmw quest for more fuel is soo difficult.

Why hasn't anyone tried these options:

1) changing out the oem fuel lines with bigger ss lines (-6N) and adding a fuel regulator to increase the pressure...the bigger the lines the better the flow rate.

2) adding bigger injectors with aftermarket fuel rails

3) an internal twin pump (making a new tank to fit 2 oem pumps) to mate with the aftermarket fuel lines/rails/injectors.

[Crazylegs]

don't know to much about this topic but found some comparison test for the bosch 044 flow lbs/hr and amps needed

http://realstreetperformance.com/sto...on-test-5.html

[KLin]

Originally Posted by shiv@vishnu

For the n54, it's the best one that I've personally tested. That only covers 3 different intercooler brands so take that for what it is worth. I would not be surprised if there are better designs out there for specific applications. But I have not tested them.

Shiv

Which 3 have you tested, if you don't mind me asking.

[CobraMarty]

Originally Posted by shiv@vishnu

"The factory FPR is insufficiently sized to return the amount of excess fuel flow..."
Shiv

This is new and very interesting.

[dzenno]

Originally Posted by shiv@vishnu

I've kept things quite civilized in light of you calling me a liar and accusing me of misleading people. So this time, I'm taking the time out of my Sunday to tell you like it is. You can learn from your mistakes it and take it easy from this point onwards. Or you can dig your heels into the sand and try to continue this stupid conflict. I propose you do the former because you don't have the technical knowledge to cash the checks that you've been writing for the few weeks since you've deemed yourself an engine control literati on all three forums. Take half as much time learning things first-hand as you take trying to play tech-police on these forums. I don't care what you accuse me of on the other forums. But here, I'm going to correct every bit of misinformation that you knowingly (or unknowingly spread) when it comes to us or our products/development. And that'a real big waste of time for both of us.

You're now getting a bit annoying seriously. I've been posting lies and misinformation? The only comments i made in these few weeks were about AFR part throttle and post shift control on the procede and piggies in general as it compares to flashes and now you give me no choice but to post some of the many logs I've created. I'll just use those last few that I got on your rev2 as well as rev2.5, which you've seen MANY times before and tried to fix after me changing both my front and rear o2 sensors per your almighty experienced advice and me losing $600 for nothing, and post the same on a flash and let's see what you have to say there.

Also you're all of a sudden an expert on fuel system too? Dude you looked at the lpfp, regulator, and the lpfp controller and put the scope on them and now you're the expert? Ok np, power to you if that's what it takes, what fuel systems on what platforms have you "designed" before this one lol? Shiv, wiring in an aftermarket lpfp is neither hard or complicated, requires tinkering and time to play with different pumps, some scoping, wiring and running on the car. You can make others think its the theory behind e=mc2 but it's been done so many times on other platforms, the info is out there on the "approach" it's only time that's needed to play with it sufficiently...so I'm waiting to see what this tinkering of yours brings to fruition...I'm sure you'll dissect this post 37 times and put the word Wrong everywhere you start your response as that seems to be the winning writing style

[Clap135]

Start a new thread with the logs. I'm game and down for sharing. A buddy of mine is running lean and the tables in the end user software where he is lean are either tapped out or not adjustable.

[Overboost]

Originally Posted by Clap135

Start a new thread with the logs. I'm game and down for sharing. A buddy of mine is running lean and the tables in the end user software where he is lean are either tapped out or not adjustable.

Re download the software. I thought I was too from monitoring my fuel trims until i did this. Then just adjust the AFR targets to meet what you want. On rev 2.5 it works quite well. If he isn't running upgraded turbos they shouldnt be any where near to being tapped out.