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Title: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: gr1976 on March 07, 2011, 11:06:19 AM I have an 07 S2R1000 with full Arrow exhaust. I bought the bike without the red key so I want to get the immobilizer removed and thought I would have the ECU reflashed to DP specs. Will I need to open the airbox? Is using a K&N filter in the stock box sufficient? I'm not looking to get every little HP out of it just want it to run well.
Thanks Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: silversled on March 07, 2011, 01:41:23 PM I'm running the DP program on my '07 S2R1K with fully cored exhaust and dirty stock filter with no issues. A K&N will work better but probably not noticeably.
Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: vossy on March 07, 2011, 02:06:38 PM no need to open the airbox.
The K&N will be fine as is. I've got the same set up but with Spark exhaust. I do however put my open cover/lid on when I'm going on a long trip (300kms plus riding days) just for breathing purposes. Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: Punx Clever on March 07, 2011, 09:08:58 PM You don't have to make any changes to the fueling at all. You can have just the immobilizer removed. Fueling with even stock intake/exhaust can use some work. Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: gr1976 on March 08, 2011, 07:44:26 AM You don't have to make any changes to the fueling at all. You can have just the immobilizer removed. I know, but was going to have it remapped to help it out with the full Arrows. I was afraid it then may run too rich with the stock airbox. Sounds like I'll be fine. I can always open it later if need be. Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: Jarvicious on March 09, 2011, 11:41:47 AM There's just fine, and there's HOLY SHIT. I never had a problem with the way my bike ran on a completely stock system, but ever since I tacked on a 14t sprocket up front, it's made me wonder what else I can get out of the old girl. Once you put a few thousand miles on a bike, you just get used to it. But once you get a little taste of what your bike COULD be, it's a new ballgame :)
Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: pcv57 on March 09, 2011, 03:55:43 PM I put a full exhaust on my s2r, removed the O2 sensor, and installed an open airbox w/ K&N filter and the DP ECU. After resetting the TPS and adjusting the fuel/air trim I put the bike on a dyno. The air/fuel mix was way off. The tech started taping up the airbox to the point where he told me to just put a stock cover back on. The DP ECU only has a slight amount of trim adjustment and the only fix is a power commander (which they don't make for this bike) or a Rapid Bike (which the tech advised against due to lousy customer support). So I guess the stock setup is it. If anyone has a suggestion I'm interested too.
Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: Punx Clever on March 09, 2011, 04:04:43 PM Nemisis ECU... costly, but fixes all the problems. Spend more and it'll tune itself.
Title: Re: ECU Reflash on S2R1k- Is open airbox mandatory? Post by: gr1976 on March 09, 2011, 04:24:03 PM pcv57 - I take it you were running lean w/ the open box and DP ECU. Did you test after installing the stock lid?
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