New Stainless Steel HX hose available - Diesel Forum

Tom S · 10-06-2005, 12:46 PM

I see that ITP has the new stainless steel cross over hose up and on the site. I have been waiting for this to come out. It does not require the rerouting of the drivers side HP hose. I was never all that happy with having to do that as it puts a semi-short bend in the hose. From what I have caught in the 99up threads they have been working out very well. You can take a look here: http://www.itpdiesel.com/store.php?c...on=show_detail

Tom

Garbage_Mechanic · 10-06-2005, 08:21 PM

I've been waiting for that too..... Read carefully on weather or not you have to reroute the L hpop to head hose. I looked at the instructions that they hane posted there and realized they are 99 up instructions I think? Reroute or not still a great idea. But I have one question..... How much of the results of adding the HX hose (now line) is cuased by the natural flex or give of the walls of the hose acting as a damper? Yes I know the usual hoses are a high pressure braided stainless, but I'm sure there is some degree of flex in th sidewalls. Just a ????? for thought. I'n going for the KCM hardline.

Tom S · 10-06-2005, 09:38 PM

You do not have to reroute the right hose. It taps in one port forward from where a standard HX hose does.

Tom

tubzz · 10-06-2005, 10:47 PM

do you think it would fit with 3" intakes and y-pipe,dual hpop and h2e? i will have to go out and look to see now.

Tom S · 10-07-2005, 10:16 AM

I have seen a picture and it looks like it would not interfere with any of that stuff. It comes straight across the motor like a regular HX then has a bend to take it towards the front of the motor towards the port one more forward. The only thing I could see possiblly getting in the way would be some large turbo or something.

Tom

caryt · 10-07-2005, 11:30 AM

Why would you need this with a Stealth [img]/ubbthreads/images/graemlins/shrug.gif[/img]

Cary

tubzz · 10-08-2005, 12:37 PM

i have kind of a choppie idle that i got after the injectors not the pumps and was told by the maker of the stealth pump to try a hx line.he sayed he put one on his truck and it help with that.

asmithIII · 10-08-2005, 09:45 PM

The natural flex or give in a hydraulic hose might be very helpful in keeping an even pressure to all the injectors. The flexible hose can swell or contract more easily than a metal line. Both the flexible hose and the metal line will swell and act like an oil accumulator. The main difference between metal line and flexible line is the amount of accumulated oil and the rate that the accumulated oil is delivered to the system.

The metal line would provide very little accumulator effect.
The metal line would deliver it's accumulated oil at a faster rate.

The flexible line would accumulate more oil.
The flexible line would take longer to deliver it's oil to the system.

In my opinion, the flexible line will perform better than a metal line. The metal line will not provide enough accumulated oil. The metal line is too stiff to accumulate enough oil to help stabilize the pressure at the injectors.

Andrew

Tom S · 10-08-2005, 10:49 PM

Andrew, I am glad you looked in on this thread. For me I have to say I like the idea of not having to put the extra bend in the drivers side HP hose. I have not had a lick of trouble with it or the HX hose I got from Tymar. I just really do not like that bend in there. I take it you feel that the acumulator effect of the flex line is as beneficial as tying together the HP galleries on the two heads is?

Tom

Tom

tubzz · 10-08-2005, 11:21 PM

very good piont andrew,i was thinking about that today,

Wolley · 10-09-2005, 08:17 AM

I have acces to the fittings needed to make my own SS line but have held off doing it because I'm a little concerned about vibration and a rigid line. It has been my experience that rigid tubing will break if there is any high frequency vibration. If rigid tubing is the only answer then it must have expansion loops and use special flare fittings with the sleeve that extends through the fitting nut. Ferrule/compression type fittings always break where the ferrule is biting the tubing.

asmithIII · 10-09-2005, 08:35 AM

Tom S, yes I feel that the accumulator effect is more beneficial but only under certain conditions.

An accumulator can store oil.
An accumulator can supply oil.

The accumulator effect is most beneficial when the instantaneous volume of oil(demand) is greater than the average output volume of oil(supply).

An injector fires for a short period of time. The injector uses it's oil in a small amount of time but the rate that an injector uses oil can be much higher than the average rate of oil delivery. The demand for oil is greater than the supply of oil.

An accumulator can store oil during the period of time when no injectors are firing. The length of time between firings is longer that the length of time the injectors actually fire. This stored oil in a flexible hose can be very helpful in keeping constant pressure to the injectors.

The proof is in the pudding, I'll have to wait and see if the metal lines are as effective as the flexible lines.

Andrew

caryt · 10-09-2005, 08:57 AM

I still don't get why ya need a HX with a Stealth [img]/ubbthreads/images/graemlins/confused.gif[/img], with all the hoses that are on the pumps they are only feeding the stock head locations? You would think that the Stealth kit would feed the heads in multiple locations [img]/ubbthreads/images/graemlins/shrug.gif[/img]...guess I need to look at the Stealth pictures again.

Cary

10-09-2005, 09:29 AM

TCH777 · 10-11-2005, 01:31 AM

I think I may belly up and give this one a try, I had to remove my HX hose from the old engine to the new one and it is leaking at the hose fittings and no amount of tightening has helped.

It seems to me that the stainless hose will still help balance and stabilize the pressure and flow. But maybe not quite as well as the flexible hose of the standard HX mod. But how much diffenece can there be between the 2?

Tim