Need my V8 Guru's, fill and expansion tanks Options

[Brad Roberts]

FYI:

The Boxsters and 996's run 2 steel 1 inch diameter lines that are side by side and "Y" out on either end to split off to the twin front radiators and the engine. They run in a tunnel protected by a underbody tray.


B

[rick 918-S]

I like the rubber. It bounces back when you hit it with something instead of "crimping" the line and frying your engine before you figure out what the problem is.

Rubber lines: 100$ and 1 hour install.

How long does it take to install hard lines ??



B

The galvanized tube sits nicely in the recess inboard of the pinch weld. I spend about 6 hours fabing a nicely curved tube. It runs inside the boxed rail under the gas tank. The second one will take about an hour. No one is paying me to build may car so My labor is free. I highly dought you could ever hit a tube hard enough to crush it It far more ridgid than the chassis. You'd have some serious suspension damage first. Just an option for the thrifty.

[Brad Roberts]

I'm not a huge fan of the rubber... but it is easy on the time during install.

Why not run copper ??


B

[rick 918-S]

I'm not a huge fan of the rubber... but it is easy on the time during install.

Why not run copper ??


B

If you bottom copper you may rip it. It's much softer, less rigid. Also hard to get long sweeping curved pieces without crushing the tube. If you bottom steel you may ding it but you'll probably drive away. Here' the right side for my car in the rough.

[rick 918-S]

end next to motor...

[GWN7]

I was checking the freeze/heat range on the green stripe hose and it's about -20 for it. I think I might have to go to the silcone hose. It cost's more but has a working temp down to -50....Just a thought for fellow cold weather friends...

[neo914-6]

Don't both the RS and RHS pumps run the same MOPAR impeeler and have the size inlets and outlets. I bet they were both cast at the same place.

Bob

Bob,
The black 914 V8 owner will tell you no. He had tried two sizes of MOPAR impellers but I don't remember all the details. The old story was that RS and RHS used the same cast blanks or the same foundry. Even if this was true, RHS currently has an improved cast housing and inlet/outlet designed to reduce cavitation. Inlets and outlet sizes can be changed with the fittings. If I convert to the RHS water pump, I'll post pics of them next to each other for comparison.

As far as Mikes mention of my copper and aluminum lines, I agreed with Brad in that it would take more R&D to make it work than installing a known good RHS system quickly. I had access to a CAD tube bender many years ago but a big mistake was routing lines over the front wheelwells. Routing the rubber lines under the car now reduces air pocket formation. If you can do it in hard lines without too much chassis mods, then hats off to you.

Felix

[Brad Roberts]

They where the same. The differences where in the actual water pump itself. It came down to WHO rebuilt them. When Andy owned RH he had a specific distance from the impeller to his cast body. The only way to get this distance correct was to have the water pumps made for him. Everyone thought they could run out and buy stock iron Mopar pumps (I tried) but you had to set the impeller heigth correctly or most of them would rub on the inside of the casting.


B

[BIGKAT_83]

I bought a used housing off of Ebay and installed a $13 impeller from FLAPS. I did have to change the impeller heigth, but no big deal. I thought it was my cheap pump not the housing itself.

The pump to have is the new meziere remote mount belt driven pump. Would more than likely cost less too..

http://www.meziere.com/ Then open up the E catalog and go to page 17

Bob

[Rusty]

Brad wrote:

I'm not a huge fan of the rubber... but it is easy on the time during install.

Why not run copper ??

I don't have a V8, but I wouldn't use copper for coolant or fuel lines. Copper work hardens with vibrations... after a while it becomes brittle. No thanks. (IMG:style_emoticons/default/confused24.gif)

-Rusty (IMG:style_emoticons/default/smoke.gif)

[Brad Roberts]

Bob,

quick note here for you:

I have been closely following some local business owners who are testing the Meziere. They happen to be from Aus where it is made. They are using it to pump water in a 911 from front to rear. I'm VERY impressed with the numbers they have obtained at this point.


B