Author Topic: what is the ultimate aaz? (Read 25251 times)

jimfoo · « **Reply #30 on:** January 07, 2008, 06:42:00 pm »

Won't matter as the injectors aren't designed to work at anywhere near that pressure. They will still open at their 150 bar or whatever it is.

jtanguay · « **Reply #31 on:** January 07, 2008, 09:04:47 pm »

Quote from: "jimfoo"

Won't matter as the injectors aren't designed to work at anywhere near that pressure. They will still open at their 150 bar or whatever it is.

lol... yep they'll open at 150 bar while the pump is delivering 1600 bar... man for some reason i just imagine a flame thrower inside the engine :twisted:

so 1600 bar is 23'206.038 psi... thats pretty close to the PD engines 30'000 psi.

maybe you can get a PD engine and try to run this pump ? use the PD block but use an ALH tdi head and this pump? that would be one mean franken engine. fully custom fuel lines... :twisted:

carrizog60 · « **Reply #32 on:** January 08, 2008, 02:06:08 am »

i know someone who used a iveco turbo daily pump to fuel a m-tdi.

dont know if it will work on IDI...

DonGTI · « **Reply #33 on:** January 08, 2008, 05:45:39 am »

I'm all ears regarding the Iveco Turbo-Daily pump... Anyone used it to "sucessfully" power a DI AFN/1Z/AHU engine? Also what did you do regarding injectors?

carrizog60 · « **Reply #34 on:** January 08, 2008, 05:51:57 am »

dont know what was done...
it was from a member of the club golf portugal.

he had a AAZ but after the crank issue nothing was left...
he bought a 90hp tdi engine and adapted those iveco pumps.
he had some troubles to make it fit and work properly but he said that the fuel was massive...

oldskool rich · « **Reply #35 on:** January 08, 2008, 05:10:17 pm »

i cant get the revs out of a tdi so its gotta be idi, im gona run a truck turbo essentualy and i believe that idi will cope with this much better.

has anyone got a diagram of how pd works? 30000 psi sounds pretty mega, how hard wud it be to adapt? whats this Iveco Turbo-Daily pump about?

jimfoo · « **Reply #36 on:** January 08, 2008, 05:26:32 pm »

Quote from: "oldskool rich"

i cant get the revs out of a tdi so its gotta be idi, im gona run a truck turbo essentualy and i believe that idi will cope with this much better.

has anyone got a diagram of how pd works? 30000 psi sounds pretty mega, how hard wud it be to adapt? whats this Iveco Turbo-Daily pump about?

About impossible. Can't have a mech PD. If you are going to all that trouble just buy a PD or turn your AAZ into a TDI, like I am. :twisted: More fuel pressure doesn't mean more power by the way.

oldskool rich · « **Reply #37 on:** January 09, 2008, 03:49:56 pm »

Quote from: "jimfoo"

Quote from: "oldskool rich"
i cant get the revs out of a tdi so its gotta be idi, im gona run a truck turbo essentualy and i believe that idi will cope with this much better.

has anyone got a diagram of how pd works? 30000 psi sounds pretty mega, how hard wud it be to adapt? whats this Iveco Turbo-Daily pump about?

About impossible. Can't have a mech PD. If you are going to all that trouble just buy a PD or turn your AAZ into a TDI, like I am. :twisted: More fuel pressure doesn't mean more power by the way.

i know fuel pressure doesnt mean more power, but its a step in the right direction, tdi isnt the answer to everything. my project must be idi, i need to find a pump that can produce more pressure than any other,

i know pd arnt mechinical but dosnt mean it wont work, just more of a challenge :wink:

jimfoo · « **Reply #38 on:** January 09, 2008, 04:17:54 pm »

Quote from: "oldskool rich"

i know pd arnt mechinical but dosnt mean it wont work, just more of a challenge :wink:

A BIG challenge since they HAVE to have electronics to work by their very design. Absolutely can't work without them.

Turbinepowered · « **Reply #39 on:** January 09, 2008, 05:51:59 pm »

You could have a mechanical PD-style diesel, that's what the old unit-injected DI industrial diesels were. I have some repair manuals for the type around here somewhere, it's neat to read.

But even then, even if you could "adapt" a PD to run without electronics, you wouldn't be able to use it for an IDI VW diesel of any stripe. You'd have to have an entire extra camshaft running outside the head to actuate the individual injectors.

jimfoo · « **Reply #40 on:** January 09, 2008, 05:55:36 pm »

How do they meter the fuel?

foxracer1 · « **Reply #41 on:** January 09, 2008, 06:01:44 pm »

It's like an inline pump. It has a scroll that is controlled by a rack the is hook to the gov and accel. It changes the time when the port opens to end injection.

They basicly took an inline pump and separated it and used a cam from the engine to provide lift.

Does that make any sense? It sounds good in my head but getting it out of there and typed down in a way that can be understood is well the task of my life.

jimfoo · « **Reply #42 on:** January 09, 2008, 06:03:42 pm »

Guess I'd have to see pics to understand.

foxracer1 · « **Reply #43 on:** January 09, 2008, 06:09:09 pm »

yeah thats kinda what i thought. Theres a plunger in a cylinder. the cylinder has a diagonal cut in it. The plunger moves up and down while the cyl twist(throttle) The diagonal cut moves so that the piston has to travel farther to reach the opening. Whe the opening is reached the fuel is no longer pressurized therefor the injector nozzle closes. no more fuel. The farther the plunger travels the more fuel is injected. I wish i had a pic for you.

Its kinda like the way the metering sleeve in the VE pump works. If your fimiliar with it?

jimfoo · « **Reply #44 on:** January 09, 2008, 08:38:29 pm »

I guess I can kind of visualize that. But the point is a VW PD isn't going to be converted to an all mechanical engine unless it was completely redesigned with tons of custom parts, possibly a custom head, and then it would no longer be a VW PD let alone an IDI.