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Here we go again. I know I could search for a bit and find the answer, but sometimes I'm lazy.
I'm planning on getting an intake and full on exhaust for my 2007 XL1200R. It's the first portion of a long line of mods that *should* be going on with this bike.
I've read two different things - one says that 2007+ models don't need to have their ECU remapped after intake and/or exhaust (I don't recall which it was, or if it was both). Then I've also read that you need to get things remapped/dyno'ed etc.
So which is it? Personal preference or legitimate concern?
If we have anyone that is a tech or something like that set the record straight that'd be great.
Most 07+ EFI bikes run great with an intake, pipes and Xieds. Some of them run great without the Xieds, but I run the Xieds and they are amazing.
The truth is in the dyno sheets, which I have posted here before, which show not only that the Xieds do work, but that dynos show that a stock bike with just AC and intake does NOT run dangerously lean.
However: Every now and then you see a bike that just doesn't like a certain combo, or maybe the intake has a leak and the guy doesn't know it...so he says "Bah this **** doesn't work my pipes still got too hot" when really he doesn't realize he has an intake leak and that is the reason for him running lean, etc...
Thousands upon thousands of 07+ EFI sportsters running on the stock tune with intake and pipes, some of them run Xieds, some don't.
Most 07+ EFI bikes run great with an intake, pipes and Xieds. Some of them run great without the Xieds, but I run the Xieds and they are amazing.
The truth is in the dyno sheets, which I have posted here before, which show not only that the Xieds do work, but that dynos show that a stock bike with just AC and intake does NOT run dangerously lean.
However: Every now and then you see a bike that just doesn't like a certain combo, or maybe the intake has a leak and the guy doesn't know it...so he says "Bah this **** doesn't work my pipes still got too hot" when really he doesn't realize he has an intake leak and that is the reason for him running lean, etc...
Thousands upon thousands of 07+ EFI sportsters running on the stock tune with intake and pipes, some of them run Xieds, some don't.
Thanks for your no bullshit response. That's exactly what I was looking for.
Also, love your profile pic - thinking of stenciling that onto my battery cover.
Hope you are loving Seattle! Almost my whole family is there and my fiancee and I are set to move out there in just a few more years!
Last thing I should mention: Obviously, the very best setup for any bike, to make the most of performance is to have a full, custom dyno tune done by a really good tuner. There are some horrible tuners out there, and there are some amazing tuners out there, it all depends on where you go. If later on, you want to maximize the power potential of your bike with whatever mods you add, the best bet would be to get a good tuner to make you a custom map, using something like the DynoJet PowerVision which would allow you to preserve your factory map and flash it back on if you ever want to sell the bike and take it back to stock. I also like the powervision because its not a piggyback ECM unit, so there is no extra stuff to fail. Not knocking the power commander, but with something like that, you are one disconnected wire from your bike not working, so to me, the piggyback units come with extra potential points of failure that the PowerVision does not.
Last edited by parabellum_9x19; Sep 10, 2013 at 03:06 PM.
Why run lean if you don't have to? I'd at least get a set of IED's to richen the mixture. A tune might not be necessary but some combos may respond very well after a tune. Mine ran extremely lean after Cycle Shacks, SE a/c and canned PC3 map. I'd definitely want to see at least one Dyno pull before deciding what to do. Your stock mixture may run OK depending on your mods but it'll probably be on the lean side since HD's are lean from the factory. BTW, if I had it to do over I'd get a PowerVision and tune it myself, but they weren't available in 2008 when I had my conversion done. I don't like the piggyback idea, no reason to add componants when everything you need is already on the bike. You just need to unlock it with something like a PowerVision or other flash tuner. Also, the big *** connector under my seat has proven to be a PITA.
Last edited by iwantmybeerbackplease; Sep 11, 2013 at 01:53 PM.
So which is it? Personal preference or legitimate concern?
I'm no motor technician. But here is my $0.02
The EFI's run a little lean from the factory ( as we all know ). And the EFI's can adjust for some mods like Air / Exhaust back to a "normal" lean condition during normal ridding. But, because of the mods, your engine will run "extra" lean outside of normal opperations. IE: hard accelerations, passing, accelerating to maintain speeds during elevation changes and so on. And these periods "could" be bad for the engine. So now it's your decision.
Do you plan on more e engine work after the exhaust and air cleaner?
Forgot to mention anything about that. If you're going to do more performance work in the future, you might as well get the tuner now and reap the benefits now unless money is an issue. I'd check into the Power Vision before you decide on a tuner.
As of right now I'm just planning on the A/C and exhaust. The other things I'd like done in the future are all cosmetic. However, we all know how you can plan on doing something one way and then change your mind about it later!
That PowerVision looks pretty sweet - sans the price tag ;-)
From: In the foothills of southwestern NC - US of A
Originally Posted by HeinzMcDurgen
...That PowerVision looks pretty sweet - sans the price tag ;-)
You know the phrase "You get what you pay for![?]" It certainly is true when talking about the Power Vision tuner. Just look at what the PV offers, and once you realize its "auto tune basic" abilities, it's ability to display just about any data that the ECM is monitoring on it's 3.5" LCD touch screen, it's quick and easy hook up to the diagnostic port of your bike to "flash" program your ECM with no pc required, and the fact that after you flash your ECM it doesn't have to stay on the bike [you can remove it, meaning you do NOT have to find a place on your bike to piggy-back it to your ECM], you will begin to understand the real advantages of this tuner. Not to mention eliminating any lean condition through the introduction of proper AFR's etc., raising the rev limiter, controlling/eliminating decel popping, offering better and smoother throttle responce and acceleration, etc. You really do get what you pay for...so consider it, and if you have to save up some coin then have some patience and do so knowing that it'll be worth every penny!
=8^)
Last edited by DrewBone; Sep 12, 2013 at 02:14 PM.
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