efi265 Posted July 24, 2023 Report Share Posted July 24, 2023 Hi Guys i have noticed my e100 fuel numbers are reaching and probably above 100 i know in traditional you can lower or raise the master fuel rate .But i don't see this in the flexi tuning Or does this not matter for this Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 24, 2023 Report Share Posted July 24, 2023 In modelled fuel equation the fuel table numbers represent volumetric efficiency. Typical VE numbers are around 50-60 % at idle and 100-110% at peak torque. If it is reaching higher than that then it suggests the actual injector flow rate is lower than set. Quote Link to comment Share on other sites More sharing options...
efi265 Posted July 25, 2023 Author Report Share Posted July 25, 2023 OK so on multi fuel i have id 1000 injectors .And they are set at 810cc a minute .and im around 110 t peak so that is ok then i guess from what you have said Thanks ? Quote Link to comment Share on other sites More sharing options...
DerekAE86 Posted July 25, 2023 Report Share Posted July 25, 2023 Is there a reason they've been set lower than their actual flow rate? At 43.5psi ID1000's flow at 1015cc/min according to Injector Dynamics data: https://help.injectordynamics.com/support/solutions/articles/178424-injector-dynamics-slope-offset-vs-pressure Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 25, 2023 Report Share Posted July 25, 2023 810cc/min is about right for an ID1000 with ethanol. Quote Link to comment Share on other sites More sharing options...
DerekAE86 Posted July 25, 2023 Report Share Posted July 25, 2023 11 hours ago, Adamw said: 810cc/min is about right for an ID1000 with ethanol. 20% difference in flow rate seems huge. What is it about Ethanol that causes such a reduction in flow? Density/viscosity play that big of a role? Or is it to account for the energy difference too? Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 26, 2023 Report Share Posted July 26, 2023 6 hours ago, DerekAE86 said: 20% difference in flow rate seems huge. Yeah, they are one of the biggest differences I have seen. ~15% less is quite common though. 6 hours ago, DerekAE86 said: What is it about Ethanol that causes such a reduction in flow? Density/viscosity play that big of a role? I assume it is mostly viscosity but dont really know. I havent put much thought into the why. 6 hours ago, DerekAE86 said: Or is it to account for the energy difference too? No, im talking purely volume or mass flow rate. Quote Link to comment Share on other sites More sharing options...
efi265 Posted July 29, 2023 Author Report Share Posted July 29, 2023 the numbers are what was specified for e100 which is cheaper than e85 Smiles Quote Link to comment Share on other sites More sharing options...
koracing Posted August 3, 2023 Report Share Posted August 3, 2023 With E100 you can mix your own E85 - at least that's what I used it for when I would buy E98 by the barrel. I'm not sure how much more performance one gains over 85% ethanol in most cases. Quote Link to comment Share on other sites More sharing options...
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