stage 1 download clarification
The EFI system is far more complex and intelligent then you're giving credit. Simply adding fuel regardless of whether or not it's necessary does nothing except appeal to the hype of how "dangerously lean" the HD system is from the factory.
Millions of miles have proven that an AFR of 14.6 is not so lean that damage results. FWIW, as EFI came onto the market, many old carb guys thought an AFR of 12.0 or higher was much too lean and would cause engine failure in just a few hundred miles.
Getting other tables set correctly is more important then shooting for some magical AFR number. In fact, until the VE's are correct, the AFR won't be.
You clearly stated you didn't want to hear about tuners and I've refrained from mentioning any. But hey, it's your bike, your money, your future...do as you see fit.
The EFI system is far more complex and intelligent then you're giving credit. Simply adding fuel regardless of whether or not it's necessary does nothing except appeal to the hype of how "dangerously lean" the HD system is from the factory.
Millions of miles have proven that an AFR of 14.6 is not so lean that damage results. FWIW, as EFI came onto the market, many old carb guys thought an AFR of 12.0 or higher was much too lean and would cause engine failure in just a few hundred miles.
Getting other tables set correctly is more important then shooting for some magical AFR number. In fact, until the VE's are correct, the AFR won't be.
You clearly stated you didn't want to hear about tuners and I've refrained from mentioning any. But hey, it's your bike, your money, your future...do as you see fit.
I agree the Efi is complex. But modifying what it does and how it does it with a tuner, a download or a device such as the xieds is all still fundamentally the same thing. Youre altering its output to get different results.
Some people need the added adjustment range of the tuners. I, however, am not one of them. I will never go past stage one. No need. The speed limit is 70. I can get there in 6 or so seconds. That's corvette territory. I can live with that. I want a heavy breather purely because they look bad ***. I love my RC slipons. Past that, I just want to be confident that I'm not leaning things to dangerous levels. If the ecu can compensate for that, great. If the xieds will add just a tad more fuel across the board and give me that added piece of mind, even better. and if the download in conjunction with the xieds will modify the timing enough to get a little more benefit im just peachy.
Although I have to admit that the power vision looks appetizing.
Last edited by Black Sunshine; Sep 12, 2012 at 07:14 PM.
Good luck with your choice.
Ride safe.
T
The Best of Harley-Davidson for Lifelong Riders
Both bikes originally had the HD download for their specific mods. They both run much better now!
I got very good support from both FuelMoto and DynoJet....!
Good luck with your mods...











