R/H/Side Direct Action Servo Conversion
Posted
Local Hero
R/H/Side Direct Action Servo Conversion
- tyre contact area
- coefficient of friction of the tyre (this varies with different road surfaces)
The master cylinder, servo and any linkage arrangement merely alter the 'feel' of the brakes to the driver, these can be quantified as 3 things:
- brake pedal travel for a given amount of deceleration
- brake pedal force required, for a given amount of deceleration
- variation from linear response*
*ie, the amount of 'play' in the system ie amount the pedal is pressed down before any braking occurs, and the amount of 'stretch' of extra pedal distance or force, during very heavy braking
So the 'upgrade' being talked about, isn't really a brake upgrade in terms of actual performance, more of the perceived feel by the driver. Pedal boxes offer this too, plus being able to address the brake balance issues which race car setup demands (ie during a race, the fuel is used up and tyres wear unevenly, so brake balance needs to be altered dynamically and manually by the driver).
Posted
Old Timer
the other thing is the disc size, smaller discs are more likely to suffer from fade under repeated hard use - unless a higher temp pad is used etc etc, BUT ABS will not help in this situation really as the co-eff of friction between the pad and disc has been reduced to heat. (one of the reasons I run a larger disc set up :wink: )
Ill stop rambling on now but basically Pauls answer is correct ops:
Daily - 05 plate B6 A4 Avant S Line, with 19s for the summer.. wifes car - Rare Seat Exeo ST Sport 170 Tech
Weekend - MK2 20vt monster - Plus a mk1 caddy I am fixing for my bro
Posted
Web Team
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Settling In
Read Me
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Settled In
Graham
(Boraboy on most other forums)
Cabrio GTI Now in Lhasa Green with running 1.8T AJQ on OEM management.
Coming to bits again for more mods after reading to much on here…
Oh yeah, and a Golf V GT TDi
(Boraboy on most other forums)
Cabrio GTI Now in Lhasa Green with running 1.8T AJQ on OEM management.
Coming to bits again for more mods after reading to much on here…
Oh yeah, and a Golf V GT TDi
Posted
Local Hero
Sorry couldn't resist!
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Settling In
pic from paul c
Posted
Old Timer
Re: Read Me
golfgod said
I havnt read any more of your posts as i realise i may of done a few things the wrong way and upset a few of you! and to those ive upset i do appologise, Thers no point causing heated debates by responding to any soured posts so my last word untill the attaking with each other stops is this please go to photobucket and search VWtopwerks, View the photos then if you honestly think im some of the various titles i have been labled with feel free to really have a good old giggle at my expense other than that i hope this does something to clarify the debate on my part and show i only meant well an had no intention of deliberately undermining anyones status in regards to advice they may give and how many may view them in the future so im trying to say a big sorry! i hope you like what you see!
no ones attacked anyone else, some of us have just pointed out where you have called some of the other members childish names,
plus any other pics? like how the bulkheads been moded/any reinforcemnt to stop flex? also any pics of the pedal box? and finally any of it with an engine in there? as i think it will be very very tight
Daily - 05 plate B6 A4 Avant S Line, with 19s for the summer.. wifes car - Rare Seat Exeo ST Sport 170 Tech
Weekend - MK2 20vt monster - Plus a mk1 caddy I am fixing for my bro
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Settling In
last comment on schoolgirls quarrel
Posted
Local Hero
- Engineering qualifications, or detailed experience
- Explanation of coefficient of friction of the tyre-road (formula would be nice too….)
- Pertinant engineering/physical measurements, which can be used to quantify an improvement in braking
- Explanation of how different components within the braking system, in theory affect braking performance
- Expectations of how your system will improve these
- Results from controlled experiments or observations showing how your system improves these. ("I outbraked a Seat Leon R" don't suffice, for example. Braking distances, deceleration rates, etc, would).
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what?
Posted
Local Hero
Re: what?
golfgod said
Look ive lost the plot where is this going paul???? I only speak as ive found and as you may have noticed i dont repeat data read somewhere parrot fashion and challenge that i dont know! What i have done is make basic statements and produced pics to back them up so the non rocket scientists of the vw world can understand what im saying! that includes me and after all this drama ive had wiv you +others most would have done a bunk with there tail beween thier legs! good job i got a lot of confidence in what i believe in or i`d have done just that! Im a nice bloke and i try and help people reach the dreams they have and hopefully install them with confidence in the ideas i have not convince them everything they thought they knew till i popped up was worthless! I aint goin nowhere till im sure no ones interested in what i have to offer and unless you can find any flaws in my efforts that actually count i suggest you and i agree to dissagree and leave it at that.
Ok put simply: You've come along and said "you should have a direct action servo". I say to you "Why - prove it with scientific facts and qualitative measurements/comparison"!
I can't find any flaws because there is no information about your system. Give us all the info we're asking for and we can ask about it and you can expain/put us right. Fair enough?
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More pics
Posted
Old Timer
Re: More pics
golfgod said
I need to get my pc sorted out can someone please go to photobucket search VWtopwerks and put the rest of the pics up please
There aren't any more pics related to the servo setup… :dontknow:
Posted
Settling In
In my humble opinion, being a hands-on kinda guy and having now fitted a direct-action-servo to my mk1, using the original Mk1 steering column position, Mk1 brake pedals and the famous Mk1 clevis pin, this modification is surely not really rocket science??
I found that to fit a Mk2 servo and master cylinder required either moving the whole column centreline inboard so that the original clevis pin would line up with the servo shaft (which would bugger up the originality even more), or 'relieving' the chassis leg so the servo was shifted 10-15mm over. Naturally the bottom bracket for the steering column then needs to be modified because it is not wide enough to clear the servo housing. I spent way too much time during my conversion trying to allow the servo to bolt in securely using the original four studs while making sure there was enough reinforcement in the bulkhead (now that id cut another hole in it) to give strength to the steering column so that it doesnt snap off while braking mid-corner from 100mph and ruin my day.
I want to see more pics golgod- ive now had my head in the footwell of my Mk1 enough times to not be quite sure what the amazing design is that you wont tell us about?
Im all for custom fabrication and modifying in the name of style & fun & safety so this is not an attack on any of your work, rather its that you aint really playing fair on the forum :?
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Local Hero
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Old Timer
Mr Golfgod,
You didn't invent the bread slicer by any chance did you? :wink:
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Hello girls
Posted
Old Timer
The point is we come on here to share knowledge of a joint passion, not fish for "you are the greatest" compliments.
After your responses no-one will care whether you genuinely have come up with a novel idea with fantastic engineering skills or not. All you will be known as is the idiot who liked to shout his mouth off and can't use punctuation…
Why come on here and proclaim you have the best braking mods for a mk1 when you won't say how you achieve the claimed results?
Posted
Settling In
Think about it!
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