EnglishRacing SLR2.2 PTE 7175 1084/744
Mar 24, 2014, 03:05 PM
#46
Evolved Member
.
Mar 24, 2014, 03:39 PM
#48
Evolved Member
I'm struggling to work out how twin 044's at 14v keep up with ~100+psi rail pressure running E98 at 850+whp unless i'm missing something.
Mar 24, 2014, 05:29 PM
#49
When we flow tested them they flowed 2400cc every 15 seconds. There are some secrets to get that flow out of them at 14V. Its an off the shelf pump but we didnt just bolt them on. In looking at them since we feel we can get more than that possibly if we tried a few other things.
Mar 25, 2014, 06:17 PM
#51
Newbie
Join Date: Mar 2014
Location: Australia
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
When we flow tested them they flowed 2400cc every 15 seconds. There are some secrets to get that flow out of them at 14V. Its an off the shelf pump but we didnt just bolt them on. In looking at them since we feel we can get more than that possibly if we tried a few other things.
2400cc / 15 seconds total flow for the two pumps with no pressure?
Mar 25, 2014, 07:02 PM
#52
2 pumps at 100psi rail pressure. We knew we were going to start with a 50psi base and expected to run 50psi so its where we started. Basically it means that it flows more than the injectors at 50psi base so we were golden. At 80psi base the 2150s should flow something like 2800cc as long as it has pump to supply it up top. Apparently it does since we can run an 11.2 at 50psi.
Last edited by JohnBradley; Mar 25, 2014 at 07:05 PM.
Mar 25, 2014, 08:54 PM
#53
Newbie
Join Date: Mar 2014
Location: Australia
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Bosch motorsport list the 9BAR Bosch 044 at 210L/hr (9BAR 14V) = 1750cc / 15 sec (2 pumps)
http://www.bosch-motorsport.de/media...6426379pdf.pdf
Seems like an error to match 7000cc/min fuel pumps with 15600cc/min injectors
(data from injector dynamics website - id2000 @ 130psi)
Why not run <40psi rail + 50psi boost = 90psi / 6BAR rail pressure?
You would then get another 20% out of the pumps - 250l/hr up from 210l/hr (8300cc/min)
With 4 x Injectors still capable of 12500cc/min
Still not ideal but surely safer / "better"?
Dont want to take anything away from the car itself... Great build. I have a similar setup. Big fan!
http://www.bosch-motorsport.de/media...6426379pdf.pdf
Seems like an error to match 7000cc/min fuel pumps with 15600cc/min injectors
(data from injector dynamics website - id2000 @ 130psi)
Why not run <40psi rail + 50psi boost = 90psi / 6BAR rail pressure?
You would then get another 20% out of the pumps - 250l/hr up from 210l/hr (8300cc/min)
With 4 x Injectors still capable of 12500cc/min
Still not ideal but surely safer / "better"?
Dont want to take anything away from the car itself... Great build. I have a similar setup. Big fan!
Mar 26, 2014, 08:28 AM
#56
These arent exactly stock 044s as I said before. Also because it works fine as is.
Bosch motorsport list the 9BAR Bosch 044 at 210L/hr (9BAR 14V) = 1750cc / 15 sec (2 pumps)
http://www.bosch-motorsport.de/media...6426379pdf.pdf
Seems like an error to match 7000cc/min fuel pumps with 15600cc/min injectors
(data from injector dynamics website - id2000 @ 130psi)
Why not run <40psi rail + 50psi boost = 90psi / 6BAR rail pressure?
You would then get another 20% out of the pumps - 250l/hr up from 210l/hr (8300cc/min)
With 4 x Injectors still capable of 12500cc/min
Still not ideal but surely safer / "better"?
Dont want to take anything away from the car itself... Great build. I have a similar setup. Big fan!
http://www.bosch-motorsport.de/media...6426379pdf.pdf
Seems like an error to match 7000cc/min fuel pumps with 15600cc/min injectors
(data from injector dynamics website - id2000 @ 130psi)
Why not run <40psi rail + 50psi boost = 90psi / 6BAR rail pressure?
You would then get another 20% out of the pumps - 250l/hr up from 210l/hr (8300cc/min)
With 4 x Injectors still capable of 12500cc/min
Still not ideal but surely safer / "better"?
Dont want to take anything away from the car itself... Great build. I have a similar setup. Big fan!
Mar 26, 2014, 01:51 PM
#57
BTW - Awesome build. I haven't been a fan of the big turbos, but that is the nicest big turbo powerband I've seen yet. I'm sure its due not only to the turbo but a great selection of supporting parts.
Mar 26, 2014, 06:11 PM
#60
Mychailo this isnt directed at you but also answers your question 
I am not going to keep answering the how because when you innovate and share it seems no one remembers who innovates. When you innovate and stay quiet, people buy your product because no one else knows how it works, you get to keep racing.
I also have gotten out of the habit of showing data online. Since it has been shown what a box stock 044 should flow, we have 2 of them, we run 52psi boost with an indicated 11.79 AFR on our dyno (which always seems to read 0.5 off), and we have x4 2150s, the math takes care of itself. All of the pics are there to show the setup.
a + b = c
I am not going to keep answering the how because when you innovate and share it seems no one remembers who innovates. When you innovate and stay quiet, people buy your product because no one else knows how it works, you get to keep racing.
I also have gotten out of the habit of showing data online. Since it has been shown what a box stock 044 should flow, we have 2 of them, we run 52psi boost with an indicated 11.79 AFR on our dyno (which always seems to read 0.5 off), and we have x4 2150s, the math takes care of itself. All of the pics are there to show the setup.
a + b = c