964Andrew

All lines are AN-6, so this would be 12mm banjo to an -6. Both lines are use the same fitting. The shorter the better. Reused the original banjo bolt just changed the compression gasket. Use SS if you can.

Thanks!
Andrew

A914MAN

Nice work!

Jonte

I thought I would add my experience as well as an alternative to you folks out there...

I chose to put the pump in the space left next to the battery as I shrunk this one down to a 1/4 size lithium one.


Pump next to battery


I built a very simple bracket and bolted it to the old battery mount and drilled a small hole for the top seat. I did put a thin sheet of rubber in-between on the top mount to make sure there was no structure born noise.


Bracket pic 1


bracket pic 2

Since the pump is vibrating a bit I put nylon wound hoses in the frunk and steel braided under the car. I used AN6 couplings and a 90 deg angle through the bulk head.



Bulkhead penetration. 90 deg on the other side.



Leftovers!!!

I've not done up the wiring yet but was thinking to put a flip switch so I can choose between the pump starting with the engine, pump off (track) or start without engine.
The last one would be handy when manually moving the car in the garage or when putting the car on a trailer.

tjb616

Thanks Jonte. I've got most of the pieces to tackle this project. One question..

How was taking out the PS pump on the back of the motor (assuming you did it with the motor in the car)? Any tips? I have a Patrick Motorsports blockoff ready to go.

Spyerx

In process of installing porsche motorsport cup car pump in mine...

Jonte

kos11-12

tjb616

Bumping an old thread with a question as I gather parts for this project:

Are you guys using high pressure lines and fittings? The only ones I can find are the blue lines with raw stainless fittings from Aeroquip.

I much prefer the all black parts.

Any recommendations on alternatives for high pressure an6 lines and fittings?

964Andrew

Search for "black nylon braided AN-6 lines" on Amazon and eBay. Alternatively try to find a heavy industry lines and fittings shop and they should have oil/fuel rated 1500psi steel reinforced rubber lines and banjo fittings.

Thanks!
Andrew

964Andrew

BTW: I have a custom pump (MB A-Class) mount for the 964 frunk location with all the rubber grommets, fittings, lines and banjo adapters. Also, in the parts bin: two A-Class pumps in a various states of disassembly (both suffered capacitor failure). These capacitors are not available in Canada or US, but mechanically they are sound. I posted pictures on the page 1 of this thread if interested.

Thanks!
Andrew

tjb616

Thanks Andrew. Your thread is a great resource.

The kits I find elsewhere are all rated to 500psi or unrated. Any idea what kind of pressure the system sees?

I'll be using the Vauxhall? pump similar/identical to the cup pump.

964Andrew

I should have gone with the cup pump in the first place. Reverting back to OEM and putting all he lines back in the car wasn't fun at all.
Power steering pump can momentarily reach between 1000-1500 psi but most of the time operates at 100 psi.

Thanks!
Andrew

Talat

To those who have done this mod, what is the subsequent steering feel like ? I have only owned an EPAS car once (an E93 BMW) and I hated the steering feel of that but I was not alone in that respect.

964Andrew

Neither the MB A-Class or Cup style pump is true EPAS in that they still use fluid to assist the steering effort. I found the A-Class pump somewhat similar in feel to the OEM pump. I feel the OEM setup loads up quicker when you are turning while driving.

Thanks!
Andrew

robt964

I can't say I noticed any difference in the feel between that and the OEM pump. As Andrew has said, its certain not an EPAS as an electic motor is not directly assisting the mechanical system. The MB is still a hydraulic driven system (all be it electrically driven).