@13B-RX3 Gen1 MaxxECU Sport I am working on
- Thread starter smithabusa
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Took her out for her maiden voyage today and things couldn't have gone smoother. Put about 50 miles on her and she never skipped a beat! Only grabbed a hand full once and it did not disappoint! Thank you so much, for an amazing product that works better than expected!
View attachment 1659628AWESOME
Awesome!
TonyM995
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I've been taking online trainings from EFI University and am on the advanced tuning concepts. They cited a paper from the 1920's!! Called "naca report 189" which states "power within 1 per cent of the maximum are obtained over a wide range of AFR".
EFI U said engines typically produce the most power between .8 and .85 Lambda. They state you want to base your AFR on what your goal is (max power, reliability, economy, or emissions) but need to keep thermal (heat) management in mind. Your lambda target appears to be .880 which seems to be pretty good to me. I'd also rather be on the safe side.
Relation of Fuel-Air Ratio to Engine Performance - NASA Technical Reports Server (NTRS)
The tests upon which this report is based were made at the Bureau of Standards between October 1919 and May 1923. From these it is concluded that: (1) with gasoline as a fuel, maximum power is obtained with fuel-air mixtures of from 0.07 to 0.08 pound of fuel per pound of air; (2) maximum power...
PS. I use Tech Smith Capture for screen grabs. It's free and I've used their products for years.
13B-RX3
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That's what's so great about tuning in VE. Once the VE table is tuned, you just manipulate the lambda target table for desired AFR. As for timing, that's where the power is, but it's a dangerous game for trial and error. I talked to Johnny Cheese and he said there's not much power to be gained over the stock timing map. I copied the stock timing map to a T and probably won't mess with timing for now. It seems pretty happy! You are correct, .880 at wide open throttle linearized to .950 at 0 throttle. Once the VE table is set I'll probably set cruise closer to 1.0, or at least mess around with trying to increase fuel economy.
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as well as MAP pressure and a host of other things
13B-RX3
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It's a lot smarter than I am!as well as MAP pressure and a host of other things
TonyM995
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The auto tune is an awesome feature!! I try to look at the MTune software along with the FT Manager to try and be familiar with both.
The Fueltech doesn’t have an auto tune and the base fuel map is generated based on entering in everything about your engine.
The math that I’m doing is in the EFI University courses. They teach you how to calculate everything without the ecu. Our ECU’s just do that math for us when we input the engine details.
The Fueltech doesn’t have an auto tune and the base fuel map is generated based on entering in everything about your engine.
The math that I’m doing is in the EFI University courses. They teach you how to calculate everything without the ecu. Our ECU’s just do that math for us when we input the engine details.
VNE
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I love this kinda stuff... I write algorithmic logic for Field Programmable Gate Arrays (FPGA) using VHDL (very high speed hardware description language) for various applications.
Parallel computing in today's supercomputers and Graphics Proceessing Units (GPU) is the way to go nowadays.
For FPGA, the math being Boolean Algebra (logic) used to design Electronic Control Module (ECM) hardware and written into flash memory is one application of FPGA and I believe they are the future of ECM as they are finitely faster than legacy methods. I would love to build one!!!!!!!!
VNE
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I love how he refers to six microscopic marsel vanes.... whilst pointing at Aluminum Electrolytic Capacitors
TonyM995
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Nice! I’m always trying to write what I do with performance in mind. I can’t wait to see the next generation of racing ecu’s.
The side fumbling killed me hahaha
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