Visit to Hill Top

[Geldof]

When I had the R1150GSA, I took it to Hilltop for remapping and felt it was money well spent. So today I took the S10 there for the same treatment.
Only done about 50 miles today, but initial impressions are good. I always experienced
a small surge at very low throttle openings in heavy traffic eg filtering. Thats sorted, bike
feels much smoother. Also it seems to be happier revving higher now than previously.
I'm attaching the graphs, they show an improvement in back wheel BHP and Torque.
Will report back when I've done more miles, but initial impressions are good

 

[Packer]

I can see how Hilltop backed off the torque between 2 & 3K rpm to soften the "off tick-over" response and it all looks rosy from 3K rpm upwards to around 5400 where torque starts to tail off.

What were your stated requirements apart from the low end response? Mid range torque, maximum power or something else?

What are the percentage gains, you managed to mangle the sheet before photographing it so it's difficult to read

Did they disable the limiter in the first three gears?

 

[Geldof]

I can see how Hilltop backed off the torque between 2 & 3K rpm to soften the "off tick-over" response and it all looks rosy from 3K rpm upwards to around 5400 where torque starts to tail off.

What were your stated requirements apart from the low end response? Mid range torque, maximum power or something else?

What are the percentage gains, you managed to mangle the sheet before photographing it so it's difficult to read

Did they disable the limiter in the first three gears?

Basically what I asked for was a less snatchy throttle at low revs and if a choice had to
be made between increasing BHP/Torque then to concentrate on Torque. The purpose
of the remap was to make the power delivery smoother without any real concern for
gains.

The "restriction" in the lower gears is unaffected, apparently its there to reduce the
strain on the gearbox and that didn't bother me because I don't tend to rev hard in the
lower gears anyway. Also if it does venture offroad occassionally that restriction might
be a benefit.

Sorry about the quality of the image, think the quality was lost in resizing it. The gains
were as follows

Before 84.11 BHP @ 7313 RPM, Torque 76.47 Ft/lb @ 5086 RPM
After 97.41 BHP @ 6993 RPM, Torque 86.28 Ft/lb @ 5425 RPM

The Bike has a Leo Vince End Can fitted

Must say I was a bit surprised about the initial 84bhp, I knew some of the claimed
110BHP would be lost because of shaft drive, but still expected to be starting with
about 90bhp.

 

[Rasher]

The "restriction" in the lower gears is unaffected, apparently its there to reduce the strain on the gearbox.......

...... I was a bit surprised about the initial 84bhp, I knew some of the claimed 110BHP would be lost because of shaft drive, but still expected to be starting with about 90bhp.

I think mine was only about 86-87BHP to start with, headers took it to about 92-93 and the ECU-U remap got it to a lovely 99BHP - and took out low gear restrictions.

Difference is massive on part throttle and through mid-range even in top gear, the lack of restriction in low gears makes it far better off roundabouts, pulling away and on Alpine hairpins.

I can't see any 100BHP bike really straining the gearbox, this thing is massively over-engineered, the FD unit is used in the far more powerful FJR1300 and V-Max, can't see the gearbox being weak, Yamaha made sure this thing was tough.

 

[Ban_6]

@ Geldof: what set uo are you using on the bike, exhuats, ecu remap or just bog standard ?

 

[Geldof]

@ Geldof: what set uo are you using on the bike, exhuats, ecu remap or just bog standard ?

Bike std apart from a Leo Vince end can. The remap was carried out with the downturn
baffle removed so as the probe could be placed in the exhaust. Geoff reckoned the
downturned baffle on the Leo Vince was going to cost me about 3 BHP, but not a lot
of choice there as its just too loud with baffle out. Originally was considering the
ECUnleased Gen 2 remap which I believe removes restriction in lower gears etc.
Also considered the Clutch Switch mod. However, my main goal was to get totally
smooth throttle response at lower revs, any BHP/Torque gains being a bonus.
If I was intent on increasing BHP/Torque I'd have changed the headers as apparently
this would give a bigger gain than fitting an aftermarket end can. The Leo Vince to be
honest is on the Bike coz I love how it sounds - at low revs in top gear it makes
it sound like a single.