Author Topic: vacuum hoses (Read 12170 times)

Ramblin MAn · « **Reply #15 on:** December 08, 2006, 10:53:55 PM »

I just got through puting the intake manifold on my car and had none of the coolantlines or vacuum lines and ended up building what I needed from good scraps.

Just like dclay said, three circuits. The P.O had capped off the coolant ports on the block and coolant pipe. I made the throttle plate heater hoses in two pieces so I could disconnect those in the middle and pull the complete upper intake off as a unit without a lot of hassle.

I guess it's nice to have all of the original stuff, but it did seem to me like there was way more pieces there than necassary. The one hose I bought from the dealer was the one that exits the heater pipe up top and goes to the throttle plate heater. It's tapered. I went to the junk yard and pulled coolant and vacuum lines off of a bunch of BMWs and VWs. Got a whole garbage bag full for ten bucks. Just used a rag and some WD40 to clean them up and make them look new. I paid more for the new tapered hose by itself. A couple plastic elbows and a razor knife and I had a nice tight fitting discrete install. Its amazing the shapes and bends you can find. Some of these hoses were probably 20 bucks new.

While I was poking around on realoem I saw that you can get short throttle studs for the intake manifold that are for "tropical" use. Specifficaly for the throttle heater delete.

m42 fan · « **Reply #16 on:** December 09, 2006, 06:40:12 AM »

A couple of years ago I had an Impala SS. One of the "free" mods on that car was to bypass the coolant lines to the TB. Everyone claimed it was worth ~5 HP. I'm not so sure I belive that, but I am sure that anything that makes that maze of hoses simpler can only be good.

Also, fwiw, most piston engined aircraft have a carb heat feature, in the form of routing a small portion of exhaust around the carb to prevent icing when desired. I can tell you from experience that applying carb heat results in a loss in power. Of course, it can also keep your aircraft from an embarrasing "unplanned forced landing".

Apples to oranges, I know, but the same principle.

Brian

e9nine · « **Reply #17 on:** December 09, 2006, 08:30:55 AM »

Sadly our cars don't gain any hp from TB coolant line delete (not that I have noticed in my past experience with the m20b25/m20b27 and current m42b18) processes.

Here are some pics that show the set up I have. One car still has the TB heater plate (capped off at the bottom) The "u-pipe" you see is the stock pipe modded to allow coolant to flow out of the plastic feed pipe and then back into the head. If I have read what most of you have said correctly - it is possible to totally cap both the exit point from that plastic pipe and the feed into the head of totally?

Second set of pics show the heater plate delete. Notice the longer studs look goofy :rolleyes:. As mentioned above you can get shorter studs. Sorry for the dirty pics. I haven't had time to pretty up the engine bays in a while.

Bimmer805 · « **Reply #18 on:** January 01, 2011, 02:42:32 PM »

Quote from: RED IS 91;15128

Is there an after market site for all vacuum hoses or do I have to go to the Dealer which is an hour away ??

If you want silicone hoses ima give these a try

http://cgi.ebay.com/ebaymotors/Silicone-Vacuum-Hose-Kit-89-90-91-BMW-318is-E30-_W0QQcmdZViewItemQQhashZitem518cb10248QQitemZ350252761672QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories#ht_1181wt_1167

Gerta318is · « **Reply #19 on:** January 01, 2011, 04:04:33 PM »

I like this thread ... I'll be tackling this job shortly and the silicone hoses look like the way to go. Bimmer, have you used the product you listed?

Bimmer805 · « **Reply #20 on:** January 03, 2011, 01:28:00 AM »

not yet but im going to order them tomorrow and try them. but i know silicone is way better then rubber ill be getting some blue hoses so you can see where there at. i just think silicone is more reliable then rubber

DesktopDave · « **Reply #21 on:** January 03, 2011, 05:29:30 PM »

I talked to them a while ago about the M42, I'm glad they finally went with a kit for us. Let us know how it works out - post some pics too - I'm planning on the same thing sooner or later.

Bimmer805 · « **Reply #22 on:** January 03, 2011, 07:54:41 PM »

of coarse i will

Gerta318is · « **Reply #23 on:** January 29, 2011, 04:17:20 PM »

Any news on this? Pics Bimmer! We demand pics!

Gerta318is · « **Reply #24 on:** January 29, 2011, 10:42:54 PM »

I just ordered a set of red from Hiperformancestore.com ... Dave I'll be looking you up if I have questions.

Bimmer805 · « **Reply #25 on:** January 31, 2011, 01:31:34 AM »

hey sorry im kind of holding off on the hoses for a bit due to that had new tires put on my car and im short on money but ill will get them soon and post pics. sorry about that