I'm not sure if anyone on here has a connection to Hilltop, but I'd like to hear their Professional Opinion on my question.
I have my ideas but would like to hear their's first. If they're prepared to comment?
Doesn't matter if not.
Off to see the Wizard
- Thread starter Nutty
- Start date
I'm not sure if anyone on here has a connection to Hilltop, but I'd like to hear their Professional Opinion on my question.
I have my ideas but would like to hear their's first. If they're prepared to comment?
Doesn't matter if not.
I have no connection to Hilltop but ........
The power loss between the BMW marketing Dept and the back wheel is usually quite significant
Which stock bike are you referring to ?
The shaft drive causes a big power sap between the crank and the wheel and it is of course the crank that BMW official figures are quoted at
Yeah, I understand that. Its called Transmission Loss. Power at the rear wheel is as real as we will get without removing the engine.
I was referring to my previous post in this thread with a direct comparison of two bikes on the same rolling road day. One with full Akrapovic Titanium exhaust and one stock bike.
Both were running at rear wheel power so it wasn't a comparison to BMW Marketing figures.
Send Geoff a pm he is neoviper on here
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Want to go to Hilltop and find out for yourself with no risk?
Come along to a "Group Discount Dates" for forum members. It is by appointment, to save you hanging around for hours if you don't want to (but most do).
Next Dates:
Saturday 20th May
Saturday 17th June
PM me and I will give you a time slot between 09:00-13:00 on the Dyno. Meet other members of the forum and exchange experiences and anecdotes.
If you are not 100% happy, Geoff will roll your bike back to the factory defaults and give you a full refund.
The usual price is £350, but on a "Group Discount Date" you pay £300 or £250 as a returning clients. There is a £10 additional fee for non-BMW.
Come along to a "Group Discount Dates" for forum members. It is by appointment, to save you hanging around for hours if you don't want to (but most do).
Next Dates:
Saturday 20th May
Saturday 17th June
PM me and I will give you a time slot between 09:00-13:00 on the Dyno. Meet other members of the forum and exchange experiences and anecdotes.
If you are not 100% happy, Geoff will roll your bike back to the factory defaults and give you a full refund.
The usual price is £350, but on a "Group Discount Date" you pay £300 or £250 as a returning clients. There is a £10 additional fee for non-BMW.
Done. See if we get a reply?
Hello,
There's a discussion at the moment on your R1200GS remaps.
I posted some comparison figures in the thread of two bikes you worked on.
The 'before' remap' dyno results on both bikes were up to 25 BHP adrift in comparison to each other.
The reason I though this was odd is the lower powered bike had full Akrapovic Titanium exhaust fitted, whereas the higher powered bike had stock BMW exhaust.
Whereby Akrapovic claim significant improved results by fitting their systems.
I wanted to ask for your Professional Opinion as to why a non-mapped Full Akrapovic Exhaust bike would produce significantly less power than a stock bike dyno'd at your premises on the same day? These two comparisons were before you did any remap work.
Thread detail and link below:
http://www.ukgser.com/forums/showthread.php/452044-Off-to-see-the-Wizard/page6
Although this is a private message I am adding the details and reply contents to the above public thread to keep interested parties updated. You may want to just dive in a reply to that thread if you want.
Look forward to hearing from you.
Steve
Ah bollocks to it !!! Just booked mine in .
POWER
POWER
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Depending on when the exhaust is fitted it would take time for the ECU to adjust, so until it has it may be running very lean, also relatively new bike would have a tight engine would it not?
Just out of curiousity Warlord, have you ridden an LC model?
I find the lower end vibes annoying and lack of grunt sub 2k frustrating but then I commute so spend quite a bit of time riding slowly and stop-starting. Whether it's a remap or an XIED, the mixture definately needs a tweek, that was obvious even from a test ride.
New engines are tight and yes there will be some ECU adjustment. That might be a valid answer, not sure how old EV's bike was at the time of Rolling Road.
If both bikes were relatively new, then that would discount 'tight engines' to some degree. Running lean would be an unknown factor.
Looking at the M.O. of each rider I would expect EV's riding style to be a less revving style than Nutty's. So would guess Nutty's has been 'well' run in and loosened up (no disrespect intended to either rider), just an observation.
I own a 2017 GSA Triple Black. So far, after 1000 miles, I don't have any issues with fuelling. I'm an Advanced Rider and also spend a lot of time at crawling pace in traffic, I'm also very used to brand new bikes. I think the fuelling is ok, so far. Don't know if that's a specific 2017 Euro4 thing or not? .. and maybe older versions of bikes are more trouble?
In fact I have thought whilst riding at slow speeds how smooth this bike is!
Don't hold your breath on getting a written reply that you can publish on here.
Whilst you are at it can you ask if a bike that has been re-mapped will still meet the Euro 4 emissions requirements?
I'll get slated for posting this but they are just simple questions that deserve an open answer.
P.S. the fuelling on the 2015 TE LC feels just fine.
My bike is 6 weeks old 1650 miles on the clock as off today.
Nutty's bike is around 3 weeks old with 1000 maybe less maybe more miles on the clock.
At the time of remap my bike had around 1500 miles on the clock. I found that initial take off was combined with allot of judder unless allot of revs were applied. Motorway speeds were horrible and very "twitchy" great now.
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Great, so both bikes were new. That answers that question.
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Then my guess would be that the mapping has been improved over the MY14, I have wondered whether when bikes come in for service work data is gathered on the fuelling and fed back to BMW HQ.
edit...
Just a thought but I wonder if the riding mode has anything to do with it?
I.e dynamic/road/rain etc etc...that may explain it..
Nutty / EVskiJ any idea what modes you had set on the Dyno?
Indeed.
If I had a bike where fuelling was shite I would take it straight in for a remap no hesitation at all (Once I'd eliminated other area's like O2 sensors, worn chains, spark plugs, coil packs, connections, etc etc). Job Done.
I'm trying to find out why there is such a discrepancy on EV's bike and Nutty's bike before remap?
Yes, good idea. That would answer it as well. Especially if the Operator hadn't noticed...
But why would Nutty (of all people) be on a lower power setting? Question to Nutty: What mode did you ride down on?
Modes don't change the maximum power as far as I know.
But do they change how that power is delivered through the rev range? ie Throttle % Applied
(I would expect an experienced Dyno Operator to have set it up correctly first though).
When I arrived, bike was set to Road mode, when i left it was set by Geoff to Dynamic.
I know Nutty rides most of the time, if not all the time in Dynamic so I assume that wasn't changed at the dyno run.
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Rain mode restricts it to 100 bhp at the crank. All others are 125bhp at the crank (on paper). The difference between road and dynamic is TC and ABS sensitivity altered and ride damping changed.
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