Okay, I'll start from the begining.
I Have a VW T3 (Vanagon)
It has a 1.6TD JX coded engine.
It has the following pump on it..
As you can see the LDA is laid upon it's side so there are no clearnace issue with the engine lid.
The engine lid creates the base for my bed, so I could do with it staying unmolested.
I have a intercooler, a bleed valve, some GTD injectors and I am going to modify the pump as per instructions elsewhere.
So, I do have a GTD pump on the bench waiting to go onto the van, but this means hacking the engine lid about, which will give me a lumpy bed!
Okay, I was playing around with the pump, a pressure guage, some tubing and the airline with a regulator as I was interested to see at what boost pressure I had maximum movement on the LDA.
What I was hoping to do was give the LDA a longer operating pressure and raise the pressure where the LDA came to the end of it's travel but there is very little adjustment on the system.
I was getting maximum movement at .5 bar! (7.35psi)
I've not looked inside the governer body yet, but the thing that limits this system is the length of travel in the aneroid itself, if it had a longer piston body then I think I could make it work over a greater range of pressures.
I think the other way to do it would be to remove the ball joint where the pushrod meets braketry and move it in slightly..
My question is, at what boost pressure on a GTD does the LDA come to the end of it's travel? or am I pissing in the wind with this one?
Thing is Im going to adjust the boost pressure, and at .5bar the LDA stops giving you more fuelling, I was hoping to get the LDA to work right up to 1 bar or so where I intend to set the boost pressure.
Is it worth me living with a lump bed and fitting the GTD pump or does that also run out of steam at a similar boost bressure?
Any help or pointers to the fundamental bit of info I have glossed over would be ace!
Cheers!
Simon.
