8 replies to this topic

[WISC]

hello me again

ok so the clutch is very sensitive. i've not measured but i only have around 1" of travel from the bite point now after some research i need to downsize the master cylinder. so i was wondering on what you guys were using ? GSXR 1000 engine and box

the one i currently have looks exactly like this but is made by someone else i think its AFCO could be wrong though. i was planning on buying this one which is a 5/8 bore so about 15.8 mm will this still be too sensitive

http://www.rallydesi...roducts_id=4046

[pete]

Not going to be much help but I had the same problem with the R1 engine in the pickup. Therefore decided to fit a cable clutch on the gsxr1000 minus. Now we have sorted out the cable issue we had it works perfectly. Bit lighter than a normal car clutch but plenty of travel.
In theory if you go for a smaller bore master cylinder it will move less fluid so should have to travel further. Any cylinder will work as long as the mounting points are spaced the same. I think Chris does a kit for the hyabusa engine so might be worth giving him a call.

[mini 1000 gsxr]

hi there i bought the kit from chris for hayabusa and just had to drill one hole in mounting bracket to fit works great

[WISC]

i spoke to the guys at Z cars and they said they use a 14mm one (as far as i can make out they don't exist the smallest i can find is 5/8 = 15.8mm i think the 14mm is a typo after conversion) but they wanted £95 for a Willwood one, but the smallest Willwood (5/8) one is £26 and looks like an identical fit. i was quoted £75 for a 14mm AP cylinder today but on there website they only make 5/8 again typo? i though all hydraulic stuff was imperial?

how would i go about a cable one as the gearbox just has a hose on to it ?

also the existing one is an ALCON one no size stamped on it the buggers

[WISC]

hi there i bought the kit from chris for hayabusa and just had to drill one hole in mounting bracket to fit works great

any chance of a pic of the cylinder and the pedal box?

[mini 1000 gsxr]

hi there i bought the kit from chris for hayabusa and just had to drill one hole in mounting bracket to fit works great

any chance of a pic of the cylinder and the pedal box?

i used to have the same problem, i had the std kad pedal box with a mini slave cylinder on the gearbox so i replaced it with zcars hayabusa slave cylinder and works perfect

[WISC]

hi there i bought the kit from chris for hayabusa and just had to drill one hole in mounting bracket to fit works great

any chance of a pic of the cylinder and the pedal box?

i used to have the same problem, i had the std kad pedal box with a mini slave cylinder on the gearbox so i replaced it with zcars hayabusa slave cylinder and works perfect

this is the same setup my car has apart from its not the original clutch cylinder im not too sure of the size of the cylinder there are no part codes on it. i was trying to save my self £70 because if the z cars kit uses a 5/8 cylinder then thats all i need it will go strait on too the car. they said its a 14mm cylinder but the smallest i can find is 5/8 15.8mm

we are going though this hole exercise because im tight

[pete]

The gsxr 1000 engine has a cable clutch as standard so looks like yours has been converted using a busa slave cylinder which is the standard z cars conversion. converting back will cost more than buying a master cylinder so may as well keep it hydraulic.
Check out this page http://www.apracing.... Type_2386_2385 as it lists 14mm cylinders from ap racing.
From an old thread on 16v forum it's the cp2623-88prt115 that you need but they aren't cheap.

[WISC]

The gsxr 1000 engine has a cable clutch as standard so looks like yours has been converted using a busa slave cylinder which is the standard z cars conversion. converting back will cost more than buying a master cylinder so may as well keep it hydraulic.
Check out this page http://www.apracing.... Type_2386_2385 as it lists 14mm cylinders from ap racing.
From an old thread on 16v forum it's the cp2623-88prt115 that you need but they aren't cheap.

legend thats what i was looking for thanks thats on the list of things to get. ive fitted a bigger stop on the pedal atm and now its much easier to use but not ideal, although i haven't stalled in the last to trips

again thanks