peter1127 Posted October 31 Posted October 31 probably because of the high presure. If you run the pump at 90psi it flows around 225L/Hr according to various people who bothered to do the test. https://www.google.com/search?sca_esv=04ccc06d6a14a3bd&rlz=1C1CHBD_nlNL1043NL1043&q=bosch+044+pressure+graph&udm=2&fbs=AEQNm0Aa4sjWe7Rqy32pFwRj0UkWd8nbOJfsBGGB5IQQO6L3J_TJ4YMS4eRay1mUcjRHkZxg8Vy0p2Xq9PcZNNq1Ew9zQooLZH5gQS3wVxeld5ohRXutwtU5CU2X36_uLH1pIUk5kgTFJ72LHrHs1dTrQZP2bShAIpXPbBXJuSHMpD67_7PI_IrPeKYP6OPe9Ff2p8rktfex&sa=X&ved=2ahUKEwim-rbVnLmJAxVygf0HHe-QCCcQtKgLegQIDhAB&biw=2560&bih=1319&dpr=1#vhid=SGOLBMIevLm8wM&vssid=mosaic So if you go north of 400hp I can imagine this will become an issue. Quote
94RF1146 Posted October 31 Author Posted October 31 Before I installed my 150psi fuel pressure sensor , I set the base pressure with the liquid filled gauge I had on the fuel rail. This was obviously not accurate. Quote
94RF1146 Posted November 2 Author Posted November 2 (edited) I'll lower my fuel pressure to 43-45psi. Got another 1 gal fuel cell , 3 x -10 bungs in the back ( pump #1, pump #2 and a drain). Need to weld the 2 male bung and a divider in-between. Here's a pic of my MaxxEcu Sport setup. Using spare IAN 8 for wheelie control and Extra Output 8 for pump #2 relay. I have the external water pump fused direct from the battery so I can let it run with the bike off. Awaiting my second 400lph pump. In the next few weeks, I will redo my harness including the 2 new devices and shield the whole harness. I'm not in a rush. Edited November 3 by 94RF1146 Orthograph Quote
Arttu Posted November 3 Posted November 3 (edited) For reference, an AEM 400lph pump started to run out of the flow around 750hp, on E85 fuel. That was at 4.8 bar / 70 psi total pressure, 3 bar base + boost. Edited November 3 by Arttu Quote
Gixer1460 Posted November 3 Posted November 3 (edited) On 10/31/2024 at 6:20 PM, peter1127 said: If you run the pump at 90psi it flows around 225L/Hr So if you go north of 400hp I can imagine this will become an issue. Using this logic - if you need 50lbs of boost to go 400+hp, I think you've got more fundamental issues! Edited November 3 by Gixer1460 Quote
94RF1146 Posted November 3 Author Posted November 3 13 hours ago, Arttu said: For reference, an AEM 400lph pump started to run out of the flow around 750hp, on E85 fuel. That was at 4.8 bar / 70 psi total pressure, 3 bar base + boost. This matches what I see on my log. Quote
94RF1146 Posted November 3 Author Posted November 3 New fuel cell before welding... Slot for divider. 1 Quote
peter1127 Posted November 5 Posted November 5 On 11/3/2024 at 1:22 PM, Gixer1460 said: Using this logic - if you need 50lbs of boost to go 400+hp, I think you've got more fundamental issues! Just used the numer I saw in his post: 45psi boost. Add 45psi base pressure, you are at 90 psi pump pressure. This results in around 225L/hr, which seems not enough to support the horsepower associated with 45psi boost. Quote
94RF1146 Posted Saturday at 01:43 AM Author Posted Saturday at 01:43 AM While awaiting my fuel pump... 1 Quote
94RF1146 Posted Monday at 11:35 PM Author Posted Monday at 11:35 PM (edited) Killing the time, the weather is shit here in Vancouver. Rain, rain,rain. I rebuilt the 6 pots calipers in front and the rear caliper. Added a spring to prevent brake drag. Also did some detailing.. Edited Monday at 11:36 PM by 94RF1146 2 Quote
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