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Posted: Sun Aug 26, 2012 7:13 am
by DaveH
Vince wrote:Hilltop is not keen to remap an RT12 with Lennies Rocket sprockets which was dissapointing to hear.
I was hoping they could sort out the fueling to match the cam advance and improve on the modification.
I keep meaning to give them another call as after the phone call I started to wonder why advancing the cam timing would cause issues with a new bespoke fuelling map specific for the bike.
\v/
Interesting ...sorry to hear that fella but curious as to why ??
Can't see why a fuelling map would cause poblems...unsure about altering ignition timing though
Posted: Sun Aug 26, 2012 12:23 pm
by Daveg2812
DaveH wrote:Vince wrote:Hilltop is not keen to remap an RT12 with Lennies Rocket sprockets which was dissapointing to hear.
I was hoping they could sort out the fueling to match the cam advance and improve on the modification.
I keep meaning to give them another call as after the phone call I started to wonder why advancing the cam timing would cause issues with a new bespoke fuelling map specific for the bike.
\v/
Interesting ...sorry to hear that fella but curious as to why ??
Can't see why a fuelling map would cause poblems...unsure about altering ignition timing though
Me neither, anyone else shed any light on it?
Alternatively, put the OE sprockets back on, sell the Lennies on here and put the money towards a Hilltop remap
Posted: Sun Aug 26, 2012 12:25 pm
by Vince
I need to ask them again. If I recall he thought that by advancing the cam timing might have an effect on the ignition timing, I thought they tsiloured the map to suit the bike the. Will call them again for a proper chat.
\v/
Posted: Sun Aug 26, 2012 12:26 pm
by gus
Hi all
I would like to know why also. Maybe the sprockets won't allow a increase in outright bhp. The sprockets already give a healthy boost to midrange so maybe no real gains to be had there with a remap?
Gus
Posted: Sun Aug 26, 2012 1:16 pm
by ned1
Sorry about this..........
but can a standard bike with a stock ECU, without a power commander or the like be remapped.
Ned
Posted: Sun Aug 26, 2012 2:07 pm
by gus
Hi
Yes it can.
Gus
Posted: Sun Aug 26, 2012 2:57 pm
by DaveH
Vince wrote:I need to ask them again. If I recall he thought that by advancing the cam timing might have an effect on the ignition timing, I thought they tsiloured the map to suit the bike the. Will call them again for a proper chat.
\v/
I can't see how fitting the lennies could possibly affect ignition timing which is triggered by hall sensors on the crank. All the lennies do is advance the cam (valve) timing a few degrees.
What may be possible I suppose is that if the ignition map in the ECU is also advanced a few degrees there could be a conflict with the overlap of the cams and the firing point...
Posted: Sun Aug 26, 2012 4:17 pm
by Blackal
I would expect the remap to advance the spark, which should take the burn period further away from opening valves?
But perhaps Hilltop envisage peak pressures being a bit high with both mods?
Al
Posted: Sun Aug 26, 2012 6:05 pm
by ned1
Is this the Mr Hilltop in action,
video cam..................
http://www.youtube.com/watch?v=bQzBXTsU_Zk
Posted: Tue Aug 28, 2012 11:46 pm
by gus
ned1 wrote:Sorry about this..........
but can a standard bike with a stock ECU, without a power commander or the like be remapped.
Ned
Ned
When I answered this in a earlier thread I assumed you was on about a 1200. As I was talking about remapping today the fellow pointed out you have a 1100s. If your were talking about your 1100 then my answer would be no. As far as I am aware the 1100 ecu does not accept flash remaps. It would require a fuelling device or a chip.
Unless anyone knows any different?
Gus
Posted: Wed Aug 29, 2012 6:44 am
by Daveg2812
I'll preface this post by saying that I sit alongside a computer for 8 hours, most days, and dib in out of this site 3 or 4 times a day, so there isn't much that goes on that I don't see.
So, Neds 1100S went weeks ago, and he now has a shiny new 1300 four.
If you trawl through the GS site, the vast majority of owners that have visited Hilltop have 1200GS or the odd 1200RT, which I assume have the same (or very similar) electronic brain as the 1200S. I do know they use the canbus system, which the earlier models do not. However, there is the odd owner who has visited with 1150 GS, which again, I assume, is similar to the 1100 engine/electronics in the S models, and have seen good improvements in the performance of their engines.
There seems to be two schools of thought on improving the performance of boxer engines, and depending on which way you went seems to be influencing how people feel.
Is it PC, dyno time, rocket sprockets, induct (in the case of the 1100S), probably around £1200 and more if you want to keep modifying, or standard bike to Hilltop for a re-map at £350. On paper it looks like a no brainer. But we all like to tinker don't we.
Posted: Wed Aug 29, 2012 10:00 am
by Blackal
Daveg2812 wrote:I'll preface this post by saying that I sit alongside a computer for 8 hours, most days, and dib in out of this site 3 or 4 times a day, so there isn't much that goes on that I don't see.
So, Neds 1100S went weeks ago, and he now has a shiny new 1300 four.
If you trawl through the GS site, the vast majority of owners that have visited Hilltop have 1200GS or the odd 1200RT, which I assume have the same (or very similar) electronic brain as the 1200S. I do know they use the canbus system, which the earlier models do not. However, there is the odd owner who has visited with 1150 GS, which again, I assume, is similar to the 1100 engine/electronics in the S models, and have seen good improvements in the performance of their engines.
There seems to be two schools of thought on improving the performance of boxer engines, and depending on which way you went seems to be influencing how people feel.
Is it PC, dyno time, rocket sprockets, induct (in the case of the 1100S), probably around £1200 and more if you want to keep modifying, or standard bike to Hilltop for a re-map at £350. On paper it looks like a no brainer. But we all like to tinker don't we.
There is only so much that a remap can attain, though.
If you can't get more air in / exhaust gas out - there is a finite limit as to how much fuel you can burn.
That said - if you can try out a remapped R1100s before you part with £350 - then you may consider that it is as far as you want to take the performance, and may allow you to avoid declaring it on an insurance policy.
Al
Posted: Wed Aug 29, 2012 1:06 pm
by exoticices
Great video Ned. I learnt lots of new words!
Posted: Wed Aug 29, 2012 1:19 pm
by Dog Tyred
exoticices wrote:
Great video Ned. I learnt lots of new words!
Hmmm, make you proud to be one of the biking fraternity don't it.
Wonder if they are all still with us?
Dt
Posted: Fri Nov 16, 2012 1:54 pm
by Vince
Well...
I took the Lennies Sprockets off as my dealer gave me a good price to refit the OE ones as part of the 72k service.
A run up to Hilltop with an unfortunate experiance with a Pheasant which will cost me an extra £180 to replace some broken screen componats, but that aside the bike running really well now...
Before 88.18 BHP @ 7475.7 RPM
After 103.04 BHP @7707 RPM
Torques
Before 71.26 Ft/lb @ 6048
After 80.49 Ft/lb @ 6054
Very nice feeling rolling the throttle on now, as it should be IMO.
\v/