'02 R1150GSA ECU remapping

[DevonianScotsman]

Hi all,

Does anyone have experience of EPROM chips for 1150GSA single sparks?
Mine currently runs an OEM air filter with a Remus y-piece and silencer.

I'm wondering what's available and what sort of difference I'd see if I was to invest in a chip. Ideally I'd like improved fuel economy over top end power if possible.

Any advice/abusive comments gratefully received.

 

[firebeast]

funnily enough mr jonesy, I live in chaddlewood plympton so just a few miles from yourself.and have just posted on the same subject earlier today but at the end of, I have one. but before mods try throwing me out for not being subscribed, I would be happy to let you try one I have and give a report on it ? i do have the official bos material showing good constant gains throughout with the equivalent bos de cat and silencer plus chip(max power 8.4 bhp gain around 5500rpm and from 80.4bhp to 85.5 bhp )and if needed will be happy to help with fitting (so long as the kettle is on) , or possibly done here if you don't have the room.more power at lower revs can improve mpg

 

[argos]

hello,these engines run really lean as standard all the so called performance stuff does is richen the mixture,the opposite of better consumption.Think KGs and aerodynamics.....and not just the bike

 

[firebeast]

surely if they run that lean as standard, then when you decat the bike and put straight through exhausts on , that will lean them even more, which isn't what you want , no matter how bulletproof . so getting the bike to run at a more optimum air fuel ratio will give better/stronger/smoother fuelling which is what i want from all my bikes i have owned over the last 2 decades. mr j already has the decat and pipes so is therefore according to your reply, running very lean and in some respects, if that means its getting hotter in the combustion its not always best to assume that means better mpg. a slightly cooler combustion from slightly more fuel(better air fuel ratio) should give more power at a lower rev so if your not revving as hard for the same power, that may equalize or decrease the amount being used
as for aero, these aint ever gona be slippery so cant understand that one. as for weight, best/cheapest way is lose some from yourself but if you want to improve mpg , just don't snap ya wrist back as fast or as often or improve your riding, if needed ,so you don't slow down in the corners as much. simples.

 

[YYguy]

You might want to have a look at this. I believe there's a UKGSer discount and if not there's an advrider 10% discount.

 

[Deleted account 200123001]

A matching remap is recommended when ever the intake or exhaust is modified. A decat has a very significant reduction in pressure drop more so than a filter or end can.
More air flow through the engine without the fuel to match gives too lean mixture - not good. There is an optimum to be reached and leaning too much creates too much free air in combustion which leads to inefficiency. poor performance and economy. In most instances engines are detuned to allow for all possible instances / lack of maintenance /poor fuel - high alitude etc etc.. a remap can cut out some of this conservative tuning giving improved performance.

I have a matching eprom chip to match my zorst, decat and filter that is tuned specifically to those mods and the bike to make sure they all work together. not yet ridden with them fitted so will have to see the effect once done.

 

[tully]

hello,these engines run really lean as standard all the so called performance stuff does is richen the mixture,the opposite of better consumption.Think KGs and aerodynamics.....and not just the bike

Bollocks....

 

[DrAlf]

A chip is a quite an old school solution you're much better off getting the bike properly setup up on a dyno either via an ECU remap or a power commander. Loads of info on here - do a search on hilltop who are the market leaders in OEM ECU remapping. Remap vrs PC is a an interesting debate. Chipping your existing ECU will limit you to a map that was produced for another bike - quite possibly in another country.

 

[dubster]

I have a techlusion unit lying around somewhere. I bought it off another member of this parish but never got around to fitting it. PM me if interested...

 

[Cook1e]

I have a K&N and a Laser Duo-tech + PC3 USB and wide band sensor. Went on the dyno (Dynobike, Malton, North Yorks) and set up for closed loop a bit richer than stoichiometric (about 13.8:1 IIRC), plus custom map for maximum torque outside the closed-loop zone. Lovely, flat torque curve with a shallow peak of about 75 ft/lb @ 5,500rpm. Max power about 85 BHP at around 6,000 or 6,500rpm. No change to fuel consumption over standard, but the bike is lovely to ride, will pull hard from about 2,000rpm and doesn't fluff when you open the throttle from 1,500 or so.

Basically, if you keep the lambda sensor, the fuel/air will be adjusted by the standard ECU, but will be on the lean side for the catalyst and emissions control. Once you get rid of the cat and make everything more free-flowing, the ECU will compensate to a degree, but still in accordance with its internal map which does not prioritise torque, power or consumption, but emissions.

Would recommend the Power Commander - there was one for sale on here recently (LINKY), but it has sold.

The bonus with the Power Commander is that you get complete control over the fuelling, rather than just re-doing a fixed map. The downside is that you need to properly set it up on the dyno as the stock maps are no good.

Have fun!