MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Technical Workshop => Topic started by: Grande_GTi on July 05, 2014, 11:11:27 am

Title: TTRS Master Cylinder Upgrade
Post by: Grande_GTi on July 05, 2014, 11:11:27 am
Hey peeps after some advice again

I've been  considering upgradin the master cylinder on my GTi mk5, I briefly remember reading on here that the TTRS Master is a good upgrade but the bit im stuck with is the part number for the brake pipe that needs to be upgraded too

Thanks again

Title: Re: TTRS Master Cylinder Upgrade
Post by: bacillus on July 05, 2014, 11:40:41 am
iirc DaveB suggested you only need one if you have a bbk.
Title: Re: TTRS Master Cylinder Upgrade
Post by: rubber toe on July 08, 2014, 10:42:53 pm
I think he already has
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fee297%2Fgrande_gti%2F058DCA97-8BD7-41AE-AEBD-9041B778B567_zps8ktyhcnl.jpg&hash=077de53156368c7b0068ffb2da4ab05a7a9cf7e5)
Title: Re: TTRS Master Cylinder Upgrade
Post by: th3_f15t on July 09, 2014, 04:03:36 pm
Alex at AKS was talking about these when I popped in there a few weeks back. They're a good complimentary modification to a BBK and improve pedal feel and some other bits that I didn't quite fully understand. I think he said he was going to start fitting them, or at least start with his own car as a demo car.

Either way, give AKS Tuning a call, ALex is pretty cool.
Title: Re: TTRS Master Cylinder Upgrade
Post by: Softishman on July 10, 2014, 02:11:47 pm
Are they straight fit? Or you need som more parts? Same For LHD and RHD cars?
I am about to fit my ttrs brakes and if this is a easy thing to do, why not do it know at the same time as the rest?! So what parts are needed? I have a LHD car btw.
Title: Re: TTRS Master Cylinder Upgrade
Post by: N8KOW on July 10, 2014, 04:20:13 pm
You need to know the right one to match upto your car, I would go via Alex for this mod so Dave can spec the right M/C, I had 8 pots and the RS MC on my A3 and the braking was superb.

 :happy2:
Title: Re: TTRS Master Cylinder Upgrade
Post by: Tfsi_Mike on July 10, 2014, 04:58:05 pm

This is something I want/need to do and gutted I missed out on Shaun's MC for sale
Title: Re: TTRS Master Cylinder Upgrade
Post by: Grande_GTi on July 23, 2014, 12:54:14 pm
Does anyone know the part number of pipe
Title: Re: TTRS Master Cylinder Upgrade
Post by: Tfsi_Mike on July 23, 2014, 03:18:46 pm

I'm booked in for he MC in September  :party:
Title: Re: TTRS Master Cylinder Upgrade
Post by: toosmiles on July 23, 2014, 04:38:51 pm
will look forward to your views,might possibly sway me to have it done :happy2:
Title: Re: TTRS Master Cylinder Upgrade
Post by: Softishman on July 23, 2014, 05:03:28 pm
What do you need to do this? Is it any different on the lhd cars?
Title: Re: TTRS Master Cylinder Upgrade
Post by: big eck on July 28, 2014, 07:56:36 pm
Alex told me its not really needed in the mk2 cupras.
Title: Re: TTRS Master Cylinder Upgrade
Post by: Pikey Motorsports on July 28, 2014, 10:29:23 pm
Isit really needed atall for the average joe doing the odd trackday? Especially for the cost
Title: Re: TTRS Master Cylinder Upgrade
Post by: Tfsi_Mike on July 28, 2014, 10:49:34 pm
Isit really needed atall for the average joe doing the odd trackday? Especially for the cost

 The pedal on the AKS brake kit feels amazing even on the oem MC

The thinking Behind it for me is for the pistons and pads to be able to release quicker (I think due to less back pressure?) meaning less unnecessary wear.
Also that Dave B advises that the oem MC is slightly 'underpowered' for the total surface area of the pistons.

I drove a car recently with the MC upgrade and the pedal was definitely firmer but it wasn't my car to put the setup to the test

I do keep changing my mind about it.  Do or die in September  :scared: lol
Title: Re: TTRS Master Cylinder Upgrade
Post by: rich83 on July 28, 2014, 11:06:12 pm
Isit really needed atall for the average joe doing the odd trackday? Especially for the cost

 The pedal on the AKS brake kit feels amazing even on the oem MC


 :happy2:
Title: Re: TTRS Master Cylinder Upgrade
Post by: toosmiles on July 29, 2014, 12:06:23 am
Isit really needed atall for the average joe doing the odd trackday? Especially for the cost

 The pedal on the AKS brake kit feels amazing even on the oem MC

The thinking Behind it for me is for the pistons and pads to be able to release quicker (I think due to less back pressure?) meaning less unnecessary wear.
Also that Dave B advises that the oem MC is slightly 'underpowered' for the total surface area of the pistons.

I drove a car recently with the MC upgrade and the pedal was definitely firmer but it wasn't my car to put the setup to the test

I do keep changing my mind about it.  Do or die in September  :scared: lol
when in september you at alex's mike?
ill be down there hopefully on the 18th
Title: Re: TTRS Master Cylinder Upgrade
Post by: DaveB@Vagbremtechnic on July 29, 2014, 06:30:34 am
The reason why it's not a high profile mod is that if people get this wrong then its a sure fire way of finding yourself in a ditch..

There's a few different servo part numbers which have been proven to work and some which will affect the balancing valve on the MC which will DEFINETELY affect the braking I the car in an adverse way

So if somebody wants to upgrade then there's a process of chassis number/check/ supply for all the right reasons

The adaption plumbing is not an OEM part it's made by me (and Alex now) and its very unlikely that he or me will supply you a pipe on its own as they're a pain the arse to make and in some way if your chassis number hadn't been checked we'd be facilitating an unsafe state and who wants to do that???

Such is the nature of modding/Internet/forums there would be a good chance of the wrong part numbers being distributed as good when in fact they would be bad and people getting hurt

Its a worthwhile mod IMHO, the analogy being if you had a target BHP figure for your engine and say you wanted to make 250BHP would you do it with a KO3 or a KO4?
Title: Re: TTRS Master Cylinder Upgrade
Post by: Tfsi_Mike on July 29, 2014, 07:23:01 am
Isit really needed atall for the average joe doing the odd trackday? Especially for the cost

 The pedal on the AKS brake kit feels amazing even on the oem MC

The thinking Behind it for me is for the pistons and pads to be able to release quicker (I think due to less back pressure?) meaning less unnecessary wear.
Also that Dave B advises that the oem MC is slightly 'underpowered' for the total surface area of the pistons.

I drove a car recently with the MC upgrade and the pedal was definitely firmer but it wasn't my car to put the setup to the test

I do keep changing my mind about it.  Do or die in September  :scared: lol
when in september you at alex's mike?
ill be down there hopefully on the 18th

I go away on the 29th so sometime before that when I get a minute  :happy2:
Title: Re: TTRS Master Cylinder Upgrade
Post by: audiman on August 05, 2014, 11:05:00 pm
I have stock MC on my ed30 running TTRS front brakes. My pedal is insane, you just have to touch it and the car slows down. After reading the forums I was nervous about changing to the 4 pots but the pedal is great. Might be a different story with the RS4/Lamborghini caliper setup tho as the piston area is quite a bit more
Title: Re: TTRS Master Cylinder Upgrade
Post by: vRSAlex on August 06, 2014, 08:41:33 am
I have stock MC on my ed30 running TTRS front brakes. My pedal is insane, you just have to touch it and the car slows down. After reading the forums I was nervous about changing to the 4 pots but the pedal is great. Might be a different story with the RS4/Lamborghini caliper setup tho as the piston area is quite a bit more

Piston area on the 8 pots is actually slightly less than the TTRS calipers.
Title: Re: TTRS Master Cylinder Upgrade
Post by: rich83 on August 06, 2014, 12:41:14 pm
Is there a list of caliper piston sizes anywhere?