AIM Brake pressure - over mudguard vs H brake lines
Discussion
After some wisdom if anyone is willing to offer it please!
Got a new AIM dash fitted to my GSXR600 track bike this weekend:
I would like to add a brake pressure sensor to this, would be nice to send someone out faster than me for reference data and gives me something to work too.
I have picked up a pressure sensor and a line to suit that comes with a banjo fitting on the end. I currently cannot fit this to my master cylinder as it has a double banjo set up with twin lines on the front brakes.
I guess I am going to have to replace the brake lines with a single line from the master cylinder so that I can fun the double banjo for the pressure sensor.
I have seen an over the mud guard option on lines, with the second line linking the two callipers over the mudguard but have read that it can be a pig to bleed and also not the best in terms of safety if you have a mud guard let go?
Other option from HEL is a H set up which I believe splits over the lower yoke which I guess keeps it clear of the mudguard but it is also a 4 line kit so there are then more fittings with opportunity to leak?
Any thoughts or advice please!
Have read about some people running the double banjo for the pressure sensor off a caliper but I am nervous about running a sensor so far down the forks and also having to deal with fork movement with it.
How do race teams deal with this as I would assume most run the double brake line set up.
Got a new AIM dash fitted to my GSXR600 track bike this weekend:
I would like to add a brake pressure sensor to this, would be nice to send someone out faster than me for reference data and gives me something to work too.
I have picked up a pressure sensor and a line to suit that comes with a banjo fitting on the end. I currently cannot fit this to my master cylinder as it has a double banjo set up with twin lines on the front brakes.
I guess I am going to have to replace the brake lines with a single line from the master cylinder so that I can fun the double banjo for the pressure sensor.
I have seen an over the mud guard option on lines, with the second line linking the two callipers over the mudguard but have read that it can be a pig to bleed and also not the best in terms of safety if you have a mud guard let go?
Other option from HEL is a H set up which I believe splits over the lower yoke which I guess keeps it clear of the mudguard but it is also a 4 line kit so there are then more fittings with opportunity to leak?
Any thoughts or advice please!
Have read about some people running the double banjo for the pressure sensor off a caliper but I am nervous about running a sensor so far down the forks and also having to deal with fork movement with it.
How do race teams deal with this as I would assume most run the double brake line set up.
You could fit the pressure sensor line to one of the calipers with a double banjo bolt and mount the pressure sensor under the bottom triple clamp if the hydraulic line is long enough.
Otherwise, you would need a take off T union building into one of the normal lines although I'm not sure if anyone offers that option.
And fwiw, the ultimate pressure you will measure is not really the key data point, rather the speed of the initial pressure application and the pressure release vs track position and lean angle that will give you something of interest.
But before you dive too deeply, look at your throttle application and time at WOT vs a fast rider and I'll bet you you're later on the gas and sooner off it despite similar apex speed values. This is usually the most telling metric between fast and average riders.
Otherwise, you would need a take off T union building into one of the normal lines although I'm not sure if anyone offers that option.
And fwiw, the ultimate pressure you will measure is not really the key data point, rather the speed of the initial pressure application and the pressure release vs track position and lean angle that will give you something of interest.
But before you dive too deeply, look at your throttle application and time at WOT vs a fast rider and I'll bet you you're later on the gas and sooner off it despite similar apex speed values. This is usually the most telling metric between fast and average riders.
Edited by Steve Bass on Sunday 1st February 23:50
Steve Bass said:
You could fit the pressure sensor line to one of the calipers with a double banjo bolt and mount the pressure sensor under the bottom triple clamp if the hydraulic line is long enough.
Otherwise, you would need a take off T union building into one of the normal lines although I'm not sure if anyone offers that option.
And fwiw, the ultimate pressure you will measure is not really the key data point, rather the speed of the initial pressure application and the pressure release vs track position and lean angle that will give you something of interest.
But before you dive too deeply, look at your throttle application and time at WOT vs a fast rider and I'll bet you you're later on the gas and sooner off it despite similar apex speed values. This is usually the most telling metric between fast and average riders.
Thanks Steve, was hoping you would pop up on this.Otherwise, you would need a take off T union building into one of the normal lines although I'm not sure if anyone offers that option.
And fwiw, the ultimate pressure you will measure is not really the key data point, rather the speed of the initial pressure application and the pressure release vs track position and lean angle that will give you something of interest.
But before you dive too deeply, look at your throttle application and time at WOT vs a fast rider and I'll bet you you're later on the gas and sooner off it despite similar apex speed values. This is usually the most telling metric between fast and average riders.
Edited by Steve Bass on Sunday 1st February 23:50
Completely with you on the data side of things, I have a lot to learn everywhere and coming out of corners is one of major weaknesses but that is combine with me increasing corner speed and lean angle thus having a difference reference as to when getting on the power. That is a different convo though!
Just want complete data to pour over and take in, along with some instruction hopefully I can make some progress this year.
roboxm3 said:
Thank you! That answers what race teams are using and gives me a direction.Krikkit said:
Stupid question, can you get a triple-banjo fitting for the MC? Would be lighter and simpler.
I did briefly look but couldn't see one in metric thread to suit at a quick look and as Steve mentioned I am nervous about clearance.Steve Bass said:
Bingo . 
Yep! Order a set of these, Hel H lines, today to suit my bike. Will run with a double banjo for the take off point for the pressure sensor at the master cylinder but I like the look of these lines and set up. Will update once I get it fitted, thanks everyone!
MK3 Dan said:
Thanks Steve, was hoping you would pop up on this.
Completely with you on the data side of things, I have a lot to learn everywhere and coming out of corners is one of major weaknesses but that is combine with me increasing corner speed and lean angle thus having a difference reference as to when getting on the power. That is a different convo though!
Just want complete data to pour over and take in, along with some instruction hopefully I can make some progress this year.
Reading the data and applying the lessons learned from the data are completely different thingsCompletely with you on the data side of things, I have a lot to learn everywhere and coming out of corners is one of major weaknesses but that is combine with me increasing corner speed and lean angle thus having a difference reference as to when getting on the power. That is a different convo though!
Just want complete data to pour over and take in, along with some instruction hopefully I can make some progress this year.
But I would venture that the biggest single improvement would be getting on the gas earlier and harder and hanging it out longer.
I’m running an Aim MXS logging system and it’s interesting to see what the throttle trace looks like mapped to the track gps and speeds. By and large, there’s a lot of coasting going on as you wait for the corner to come to you rather than either being on the gas or on the brakes with very little in between….
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