Cam adjustable throttle on a road bike: anyone using?

[HenryDorsetCase]

The idea is that the pull on the throttle is not linear: at low throttle openings a given turn results in X pull of the cable, and at higher throttle openings the pull of the cable is greater. So for a bike (like my Street Triple) that has a super sensitive throttle from closed to cracked open, and (particularly round town) it makes it a pleasanter bike to ride.

Your thoughts callers?

http://www.g2ergo.com/g2-throttle-cam-system-80.html


Its not an inexpensive bit of kit, but you know, ano.

[cfxjason]

lv it but costs to muche

[F5 Dave]

Presumably you are on Tri forums?

Check out the 1050 one they go into these, but also 1st thing to do is try download a different ECU tune, cable costs sod all & SW is free. I've got a cable if you get keen & can be quick with it. Absolute p.o.Piss easy.

http://www.tiger1050.com/index.php/board,23.0.html

SW
http://www.tuneecu.com/

[neels]

Looks interesting, could do with something like that for my ST2.

Same thing used to be achieved on carbs by having odd shaped cable actuators on the butterfly, wonder if the same thing would work on fuel injection throttle bodies.

[imdying]

http://www.g2ergo.com/g2-throttle-cam-system-80.htmlWhat you describe is a by product of a poor EFI system, quite likely just the tune and not the hardware though, and as such this will not help. Dave's suggestion is more likely to be effective.

Some people just never close the throttle fully. It's not a habit I've ever been taken with myself.

[HenryDorsetCase]

What you describe is a by product of a poor EFI system, quite likely just the tune and not the hardware though, and as such this will not help. Dave's suggestion is more likely to be effective.

Some people just never close the throttle fully. It's not a habit I've ever been taken with myself.

good points all. It is about to get an Arrows 3 > 1 lowboy and will get a tune for that. I suspect the snatchiness off idle is as you say, a less than ideal tune. I had thought that getting a tune involved hours on a dyno and great expense, whereas the mechanical solution is done and dusted for say $150. My scots ancestors prefer the latter over the former.

[pete-blen]

I have one on my XT660...
yer just mod the standrd throttle...
10mins with a small chain saw file..
On the XT it helps to stop the surgeing
by makeing involuntary throttle movements
smaller so the CPU don't detect them as easy
and change the fueling ratio between the open
& closed circuits .. when the CPU detects a
movement of the throttle it asumes you are going
to accelerate and jumps to the open fueling circuit
"richer mixture"... when you don't it jumps back
to the closed circuit " leaner mixture"..
On the XT the open circiut has a fuel ratio of 14.7:1
closed circuit has fuel ratio of 13.6:1... jumping
between these two ratio's is where the surgeing comes from...
also helps low speed throttle control...

mine the first half of the throttle twist
has a slower cable pull ratio...

another cheap easy trick is..
Put a 1om poteniometer on the airbox air temp senser..
at the twist of a nob you can tell the CPU lies about
the air temp and the CPU will richen or lean the mixture..
it makes a big diffrents to the power out put and/or fuel
useage...The CPU has pre set min & max ratios built in so it won't let
the fuel air ratio go out side these..

[F5 Dave]

. . , whereas the mechanical solution is done and dusted for say $150. My scots ancestors prefer the latter over the former.

Does it get a stiffy over this?
http://www.ebay.com/itm/Triumph-Bike-Tune-ECU-Diagnostic-Tuning-Lead-Cable-006-/230583176225?pt=UK_Diagnostic_Tools_Equipment&hash=item35afd40c21

[Geeen]

Does it get a stiffy over this?
http://www.ebay.com/itm/Triumph-Bike-Tune-ECU-Diagnostic-Tuning-Lead-Cable-006-/230583176225?pt=UK_Diagnostic_Tools_Equipment&hash=item35afd40c21

I got mine landed for $11... And you are right about it making a huge difference. I saw on another forum that you can now grab an Android app called "Torque" for about $5 and a Bluetooth OBDII dongle and run real time data logging....

[imdying]

good points all. It is about to get an Arrows 3 > 1 lowboy and will get a tune for that. I suspect the snatchiness off idle is as you say, a less than ideal tune. I had thought that getting a tune involved hours on a dyno and great expense, whereas the mechanical solution is done and dusted for say $150. My scots ancestors prefer the latter over the former.It could very well be that the tune after fitting the pipe will sort it out, give Red at Triple R Racing a call and he'll setup a time to get it on the dyno. It shouldn't be big dollars, you're not looking to eek every last hp out of it.

[HenryDorsetCase]

Does it get a stiffy over this?
http://www.ebay.com/itm/Triumph-Bike-Tune-ECU-Diagnostic-Tuning-Lead-Cable-006-/230583176225?pt=UK_Diagnostic_Tools_Equipment&hash=item35afd40c21

for under $20 it is so worth a look. Plus it is called "VAG" which amuses me because I am 12.

[F5 Dave]

Try the free (tri approved off road use ho ho) tune & see that it is the bus. You are after throttle response or rather control so a bit of playing could be as well as dyno work, but easier on dyno if you still have improvement desire.

[HenryDorsetCase]

interesting. The Arrows is a Triumph gen yoo wine accessory, and because the airbox is stock and the pipe retains the O2 sensor, it has completely transformed the thing with the "Arrows" tune.

I'm a happy camper.