Delboy777
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O2 sensors are disconnected when fitting a PC
Hilltop Motorcycles fact or fiction
- Thread starter MalcGSA
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Roger 04 RT
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On an R1200, the O2 sensor is active to almost redline RPM and to roughly half throttle.
The O2 sensor compensates for all errors including: fuel pressure, injector flow rate, intake filter restrictions, fuel type (ethanol or not), air temperature, air pressure and TPS sensor errors, etc.
As the BMSK learns about errors from closed loop use of the O2 sensor it creates long term trim factors that are applied to all RPMs and throttle angles.
Bendy toy
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Other reason to remap rather than fit an add-on box.
All the more reason to fit a Lambda offset device. 
Deleted account 190920001
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This is wrong.
A PCV is a piggy back ecu, it adds or removes fuel from what the stock ecu asks for by a percent. The stock ecu has the MAP sensor so when you are at high altitude and thinner air it will ask for less fuel which the PCV will see and will also give less fuel. to Put it another way if you have set the PCV to add 10 % more fuel (an arbitrary figure) it will only add 10%. For ease of working if the ECU is asking for 70% duty cycle on the injectors and you have set the PCV to 10% over you will get 77% duty cycle. If you go to high altitude and the ECU asks for 60% the PCV will give 66% and not the original 77%. This is the same with a direct ECU flash only the 10% is added directly into the bins of the original fuel map and the MAP correction factor works with that.
dave perry
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Back to the real world - I have just fitted a Remus Decat header to my 2010 R1200 GS, and find that the engine spins up more freely and has a little bit more grunt. Mind you, this could a placebo effect - along the lines of " I've just spent £325 on a set of shiny pipes so it must be better" However my visit to Geoff an Thursday should give more definitive and positive results - I will keep you posted.
Anyone want to buy a second hand " Accelerator Module " ? A great bit of kit for 30 euros I must say !!
Anyone want to buy a second hand " Accelerator Module " ? A great bit of kit for 30 euros I must say !!
The decat will loosen up the motor and give you a bit more power so it's not placebo.
I love all this aggros about hilltop v PC. They both have the same result via slightly differing routes. My PC111 has been on for 50,000, it's been in all the conditions you can think of from -10c to +45c, it's been to -284ft and +13,000ft and had all sorts of shit thrown at it from heavy rain to the shit they put on the Dalton which is a very fine and caustic powder that gets everywhere and dries like cement. Guess what.....it's never let me down and just delivered all the power I need when I need it.
I'd probably go with a Hilltop if I had another GS because it's just easier but I wouldn't expect the result to be anything different.
Delboy777
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Im going on saturday to have my bike fitted with a PCv and set up on the dyno. 
I want my GS to work well in the Fens and the Alps and in hot and cold temperatures, not just the climate of Leicestershire, I also want it to produce the minimum amount of pollutants - think I'll leave my bike as it is for the moment.
I don't recall anyone trying to persuade you to do otherwise - thanks for the valuable contribution
Don't you have a toilet these days?
Deleted account 211025001
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I don't recall anyone trying to persuade you to do otherwise - thanks for the valuable contribution
Don't you have a toilet these days?
He's always good for a laugh though
I used to think he just posted for the sake of a wind up but, over time, I've come to realise that he actually believes the bollox he types
Having 'Hiltop'd' the 1190 I'm now really worried that I can't visit the Alps (would've been nice to pop back that way again sometime
), I can't visit the Fens (no great loss ), and shouldn't ride the bike in the depths of winter or the heights of summer Oh, and being the tree hugging hippy that I am it looks like I'm personally responsible for global warming; this does not sit comfortably with me at all
What is a boy to do
Andres
dave perry
Registered user
Great result from my HillTopping, was 78.5 BHP at the rear wheel, now 101 ! A fair bit smoother and sounds great, and loads more grunt obviously !!
The "before" AFR was so lean ( below 3000 RPM ) that Geoff's analyser could pick up nothing at all, and even at full revs was too thin ! He has done over 600 boxer engines, are you going to be next ?
The "before" AFR was so lean ( below 3000 RPM ) that Geoff's analyser could pick up nothing at all, and even at full revs was too thin ! He has done over 600 boxer engines, are you going to be next ?
I really think - you should. Fcuk knows what sort of engineer you are, but I don't think you'll be solving cold-fusion anytime soon.......
Al
Delboy777
Registered user
Well im just back from having my bike set up on a dyno. It took three and a half hours and the the result was brilliant. PCV fitted and mapped...............chalk and cheese. More response from less throttle and much more "tractable". Its early days yet only done 60 miles but the fuel computer is saying MPG up 9.8mpg. I hardly have to twist the throttle, unlike before I had it done. The aim was 13.2 AFR and that was achieved. The bike wasn't too bad on full throttle it was already rich from 80% onwards. But it was as lean as feck everywhere else, with ratios reaching as high as 16.0 not uncommon 
Power wise only a 4hp increase over standard from 92.85 to 96.57hp and torque from 74.25 to 74.67. So all i know is what the seat of my pants is telling me and the mpg figures are nothing short of incredible. On board computer has never varied very much since the bike was new and was always around 52.4mpg no matter how many times I reset it. Now its at 62.2mpg and my riding style has not changed, only difference being a more responsive throttle that i don't need to twist so far. Now having spoken to the operator im glad I didn't throw my money away on what appears to be a sham ECU setup at Hilltop. I speak as I find and the dyno guy has had three bikes on his dyno after the so called set up there and every one of them had been given wrong figures. And the proof exists on the dyno graphs from those bikes, ive seen them. Now believe me if you like but quite frankly i don't really care whether you do or not, its your money not mine.
Power wise only a 4hp increase over standard from 92.85 to 96.57hp and torque from 74.25 to 74.67. So all i know is what the seat of my pants is telling me and the mpg figures are nothing short of incredible. On board computer has never varied very much since the bike was new and was always around 52.4mpg no matter how many times I reset it. Now its at 62.2mpg and my riding style has not changed, only difference being a more responsive throttle that i don't need to twist so far. Now having spoken to the operator im glad I didn't throw my money away on what appears to be a sham ECU setup at Hilltop. I speak as I find and the dyno guy has had three bikes on his dyno after the so called set up there and every one of them had been given wrong figures. And the proof exists on the dyno graphs from those bikes, ive seen them. Now believe me if you like but quite frankly i don't really care whether you do or not, its your money not mine.
Well im just back from having my bike set up on a dyno. It took three and a half hours and the the result was brilliant. PCV fitted and mapped...............chalk and cheese. More response from less throttle and much more "tractable". Its early days yet only done 60 miles but the fuel computer is saying MPG up 9.8mpg. I hardly have to twist the throttle, unlike before I had it done. The aim was 13.2 AFR and that was achieved. The bike wasn't too bad on full throttle it was already rich from 80% onwards. But it was as lean as feck everywhere else, with ratios reaching as high as 16.0 not uncommon
As an owner of a bog standard TC, it's interesting to read about your experiences and perspectives on both the PC and remap.
I'll be even more interested to read the responses
Delboy777
Registered user
Yup im the same awaiting incoming
"Now having spoken to the operator im glad I didn't throw my money away on what appears to be a sham ECU setup at Hilltop. I speak as I find and the dyno guy has had three bikes on his dyno after the so called set up there and every one of them had been given wrong figures. And the proof exists on the dyno graphs from those bikes, ive seen them. Now believe me if you like but quite frankly i don't really care whether you do or not, its your money not mine."
The anecdotes from the dyno guy are hardly "speaking as you find"
Glad you are happy with the change in performance you have, though.
Al
The anecdotes from the dyno guy are hardly "speaking as you find"
Glad you are happy with the change in performance you have, though.
Al
dave perry
Registered user
I am very satisfied HillTop customer, your operator is doing what they all do, slagging off the opposition !!
When I was there two other Boxer guys turned up with their new bikes for a remap, third time for them - if it was a sham they would hardly be back.
I also got a jump in MPG on the trip; it used to stick at around 53.5 MPG, but on the 2 hour run back up north showed 63 MPG. I reset it several times to make sure .
Use Hilltop with confidence guys !!
When I was there two other Boxer guys turned up with their new bikes for a remap, third time for them - if it was a sham they would hardly be back.
I also got a jump in MPG on the trip; it used to stick at around 53.5 MPG, but on the 2 hour run back up north showed 63 MPG. I reset it several times to make sure .
Use Hilltop with confidence guys !!
Delboy, how much as that set up and Dyno time cost you, just so we all have the full comparison?
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