Green86Cab

I have read several posts about replacement of vacuum hoses. Are these available as an aftermarket kit or do you just purchase the correct size hose material and go at it? It seems I have also read something about silicon hoses. I would guess that these have a much longer life than the originals.

Thanks

Porsche-O-Phile

Lindsey Racing makes a Purosil kit that I personally use on both my 944s and think is excellent. There is also a kit made by MySwiss that uses silicone tubing and also gets high marks. The only complaint I've ever heard about either is supposedly the purosil hoses split on a HIGHLY modded car (NZ951's) but I'd suggest asking him about it and his suggestions for a solution. I've never had a hint of a problem and I swear by them - WAY better than those crap stock elbows and "Y"s that love to split / leak.

Jason_86_951

The stock rubber "y" and elbows are very good, there just 15-20 years old. I bought factory new ones and some teflon vacuum tubing. Should last another 15-20 years. I don't like that blue hose that availible, it splits very easily, even on installation. We installed it on my buddies car, I wasn't impressed.
Cheers,
Jason

Porsche-O-Phile

True, the original connectors are old although they're also quite expensive - I believe one of the little banana-shaped ones was $7.00 at the dealership - to replace all of them, the Y connectors and the lines entirely would easily run close to $100. . . I think one can do far better for less with either the silicone or the purosil. The stock plastic lines tend to get kind of brittle over time also. . .

brad-cam

If you don't like the silicone or purosil lines, you can use regular black rubber vacuum hose available cheap at any auto parts store. I replaced all my lines with that stuff and it is working great. Call me boring, but I'm not a big fan of blue and red vacuum hoses all through my engine bay. Ok, my Magnacor
wires are red...

NZ951

Yes you can run regular vacuum hose, in fact I have myself used regular hose form a hose and coupling store.

Incidently, SFR sells thicker walled vacuum hose over the LR product. I imagine so the hose does not collapse and maybe is a little stronger. Its more expensive though... I still have a section on my fuel dampner of the LR hose that has not split! happy days. I imagine I just got a bad batch of the hose, maybe the compond was poorly mixed or the extruder was not setup right, who knows. I would think the LR hose is fine 99% of the time and no one else has had an issue with it that I know of.

hosrom_951

Another reason for the LR kit is the price that is what 99.99999% of people go for

NZ951

Yup, thats why I bought the kit, it was cheap... mind you the vac hose retails for $2 a meter here, so it was expensive compared to that, but cheaper tan other "tuner" alternatives.

jonnybgood

I got a kit from a Rennlister and I have had good results for 4 months now. He makes a kit for Turbos and NA's. To read about the kit I got and to contact MySwiss go to this thread:
http://forums.rennlist.com/rennforu...ad.php?t=107490

Porsche-O-Phile

I also don't like an engine bay that looks like a box of Crayola Crayons exploded all over it - I opted for the black lines (951) - that is an option with the Lindsey kit. The 944 has red ones, but I'm experimenting with red accents for the bay on that car (cam tower, silicone connections for the intercooler pipes on the Callaway setup, and a few other things). Color is up to you. IIRC they have blue also, in addition to the red & black.

GlenL

Oh cripes....

I recently tossed out all that original micro plastic tube and tee stuff. After 17 years and some long-term oil contamination it wasn't worth saving.

Go to your local auto parts store and get a few yards of some regular, old black vacuum/washer hose. A couple/three small sizes. Also, get the variety pack of tee's and connectors. You'll be in it for $10. Will work just as well as a kit. And who's looking under your intake anyways?

theedge

I used red Silicon/Purosil hose (hey, gotta match the paint ) and the only spots I had splitting problems were where I tried to force it, or I pulled hard on it at a right angle to the nipple. Otherwise, its pretty tough stuff.

Jason_86_951

I used Teflon lines from Mcmaster Carr, they come in the factory metric size and will last longer than your car. It's clear, so you can see when they are clogged with oil. Cheap too, it took about $14 to do my car. I bought all the factory vacuum fittings from Ian's for only a few dollars a piece.