Sean_Jaymo

Very easy to strip mate. Just make sure you're not an ape with a hammer and you'll be ok, quite tough.

Afraid not, it's bare metal and awaiting me painting it. I'm also missing 2 door cards! Errors of my misspent youth!

I have a red one and one in pieces that I dismantled years ago for no real reason.

And it still has the plastic under trays!

Cheers mate, aircraft techie by trade and have om15 running through my veins!

It says to me that the MAF is having no effect on the car whether it is plugged in or not, which means it's not working! Give it a clean in case something has got on the sensor wire.

This is correct but if you were to push as hard (not as far) with a smaller master cylinder you would exert more pressure on the brake caliper. You and I appear to be talking brakes in a slightly different tone to each other. I am describing how much brake force you exert on the caliper for a given pressure and you are talking for a given distance of pedal travel. Personally I would prefer for the brakes to work harder for the effort. Let me try to explain my logic with some maths. Surface area of the 22.2mm piston is 387mm square or 0.387 metres squared Surface area of the 23.8mm piston is 523mm square or 0.523 metres squared This is an increase of about 34% Lets say for arguments sake that the fulcrum point is 1/5th of the way down the brake pedal. It's irrelevant as the fulcrum point is the same for both master cylinders but it would leave a brake pedal ratio of 5 to 1. The basic formula for pressure on the calipers is Pressure = (Force on pedal x pedal ratio) divided by master cylinder piston area in metres square - For arguments sake lets stick force on pedal as 20KG. So that's (20kg x 5) divided by 0.387 or 100/.387 = 258psi (20kg x 5) divided by 0.523 or 100/.523 = 191psi Again that's a difference of about 34%. This means that for a given force on the pedal you would get a REDUCTION of 34% in pressure by increasing the master cylinder size. As hydraulic fluid is not compressible, I would assume that you would have to press 34% harder to get the same amount of pressure at the caliper which means you would have to put 27KG of force into the pedal to stop as quickly. You are right though, you would get a firmer pedal quicker as the larger piston would displace the fluid quicker but the increase in piston size means that the pressure you are putting on the pedal is dissipated over a larger area and so the stopping effects would be reduced. I'm sorry if I come across as patronising, I'm not trying to be. I'm simply trying to back up my point that larger piston sizes do not mean an increase in braking force, it only reduces the pedal travel but with the trade off being reduced pressure. If you were to increase the size of the vacuum servo, then you would get an increase in brake assistance and so an increase in brake pressure with less travel. This is how most modern cars give the feeling of stronger brakes, larger servo tied in with a larger cylinder.

The internal diameter of the pipe is still 3/16. A master cylinder won't meter out 2 different internal pipe diameters, it's up to the abs pump or compensating valve to meter out flow to the pistons. On non abs cars, brake pressure is the same left to right irrespective of how much the car is turning which is why it's easier to lock up the inside wheel. That's where the advancement in brake systems to abs allows for wheel specific brake forces. Apart from the Corrado that is. It's only 3 channel, front left, front right and both of the rears are treated as one. More modern cars have 4 channel systems to improve further. More flow equals less pressure so you will need to push the pedal harder for the same amount of pressure to be applied at the caliper. The caliper only accepts a certain value of fluid, enlarging the diameter of the pipe allows a larger surface area of contact within the pipe for the fluid to act upon and so the force dissipates against the inside of the pipe and not on the caliper. Hope I make sense. Fitting a larger master cylinder will not improve braking unless you stamp on the pedal, it will make the pedal travel feel worse if anything. A larger master cylinder reduces pressure. You will have a harder pedal with less pressure at the caliper. Not ideal really.

For somebody trying to break into the industry, the timing is pretty poor but then a few companies are still recruiting so I'd imagine it the upstream part of the business that will be struggling short term.

It could be the MAF then if you are getting no warning lights. Was it genuine? If so then you can return it faulty.

The size of the bolts is to stop connecting the wrong pipe to the wrong hole. 1 circuit will be a 10mm and the other will be 12mm. It so that if one of the circuits fail, you don't loose both. The pipe diameters are still the same. It's not flow you want, it's pressure. More flow equals less pressure.

Nice wheels!

He mentioned no warning lights.

It must have some pretty poor servicing going on if they go that often. Does it get the correct grade of oil? I don't mean weight but vw spec 501.xx.

My mk4 did this from time to time. It was the variable geometry vanes clogging up with the soot build up. The turbo was in effect stalling and choking the engine. I removed the turbo and cleaned it all out and that seemed to cure it.

There is something about your car that just looks cool and I can't put my finger on it? I like the wheels too!

Well you are more than welcome when you do decide what to do!

I replied the other day? But I'll mention it here as well, I'm in no need for these at the moment so they are free to go to the next in the queue. Cheers

The white horse it is then Jim.

I'm going to go for 1pm onwards and top555 sounds good to me!

2 cars I've always regretted selling, 1 being my 964 911(especially given current values!) and the other being my last Corrado. At least I have another Corrado! Another thumbs up for standard suspension, I love how mine drives even if there is space for a small family of Albanians!

More the merrier.

Sorry, carriers have gone to a nice new home.

I suppose it's better than being called Jock? Does anyone else have any suggestions for a location for 10 or 15 cars that would welcome us and be willing to sell some good food to a bunch of car guys?

You'll be fine then. :-)