Would a Landrover Discovery Pump Work on my 1.9 idi?

[8v-of-fury]

It runs well, but I had to have the throttle lever modified to make the fuel plunger move further.. and to do that I had to clearance the inside of the pumps body quite a bit, and grind some other things down too.. so really not a bolt and go operation lol.

The land rover pump is more desirable i suppose because of the pumps ability to move more fuel in stock form, being that it fueled a 2.5L engine stock.

[CRSMP5]

gov mod is only pump mod i did on my disco pump... runs well with no power problems... will pull 6200rpm via math and gear ratio chart with tire size...

now fitting pump to a ahu vs alh... alh is pretty much direct fit.. 1 mount and chnge the nipples the lines attach too... on a ahu.. its like fitting a alh pump to it... bore out mount.. use later pully set up..

[R.O.R-2.0]

gov mod is only pump mod i did on my disco pump... runs well with no power problems... will pull 6200rpm via math and gear ratio chart with tire size...

now fitting pump to a ahu vs alh... alh is pretty much direct fit.. 1 mount and chnge the nipples the lines attach too... on a ahu.. its like fitting a alh pump to it... bore out mount.. use later pully set up..

weird. idk how you got more RPMS with a BIGGER pump head..

my engine only turns 5750 revs, on the bolts, in neutral with the rollers skipping... governor shimmed solid.

VERIFIED BY TACHOMETER.

[CRSMP5]

no idea.. gps = 78mph max in 3rd gear at ~21psi.. then andy did math and came up with it.. stock 98 tdi tranny.. 195/50-15...

your correct 11mm pump head..

[Blocksmith]

weird. idk how you got more RPMS with a BIGGER pump head..

my engine only turns 5750 revs, on the bolts, in neutral with the rollers skipping... governor shimmed solid.

VERIFIED BY TACHOMETER.

Stiffer springs--the springs behind a DI camplate are unreal. Incidentally, that's one thing I'm very set on trying--using a DI head (11mm) & springs, but an IDI camplate. Or maybe just even an 9mm head, who knows. Increasing the rev ceiling is somehow very appealing...   I think it'd be great if we could reliably raise the redline to 6500 or even 7000rpm.

[8v-of-fury]

1.9 AHU springs in my hand, 1.6 TD springs in the distributor head.. As can be seen, they are a WAY stronger spring. It makes turning the pulley of the pump by hand easily 4-5 times harder when assembled.



Blocksmith, fwiw the 1.9 AAZ uses the exact same springs and it also has the IDI cam plate. However the difference in cam plate between the 1.9's, IDI or DI, is not that far off from one another. So therefore theoretically an AAZ should be able to achieve this higher rev limit, which I do not think it can.. so in theory it won't raise the 1.6 ceiling either.. Maybe a few hundred rpms at most.

[R.O.R-2.0]

oh crap....

does someone have a set of DI springs they would sell cheaply?

i wanna try some in my peugeot 10mm pump..

[8v-of-fury]

oh crap....

does someone have a set of DI springs they would sell cheaply?

i wanna try some in my peugeot 10mm pump..

AAZ springs are the same.

[theman53]

Are all the aaz springs the same? I have 2 pumps off the core engines that are not TD pumps, one is the ECO and one the N/A versions.

[burn_your_money]

no idea if a tdi pump will work on a idi...

I'm doubtful. The larger head and rotor and steeper ramp on the camplate would cause the fuel to be injected into the engine in say 5 degrees of rotation where if it was the smaller head and rotor and IDI camplate it would take 15 degrees of rotation. I think it would sound like marbles in the engine the whole time, and would probably be low on power because all the fuel is being injected near TDC when you have the least amount of leverage on the crank. I think you'd also be blowing HGs pretty quickly.

I just made up all those numbers, don't quote me

[R.O.R-2.0]

well, does anyone have any AAZ, or TDI pump springs?

cause i have ZERO of either..

[theman53]

Are all the aaz springs the same? I have 2 pumps off the core engines that are not TD pumps, one is the ECO and one the N/A versions.

well, does anyone have any AAZ, or TDI pump springs?

cause i have ZERO of either..

[R.O.R-2.0]

Are all the aaz springs the same? I have 2 pumps off the core engines that are not TD pumps, one is the ECO and one the N/A versions.

well, does anyone have any AAZ, or TDI pump springs?

cause i have ZERO of either..

so, are saying you might have springs to offer up, being that you have a pump? any possibility of purchasing a whole pump off you? i wouldnt mind buying a whole pump off you if its a good price.

[ToddA1]

no idea if a tdi pump will work on a idi... works great for tdi-m though.. what i have on mine.

I thought you were running a Defender pump or is it the same pump?

-Todd

[CRSMP5]

defender/disco same pump for my knowledge... but like said.. i have on tdi not aaz.. no idea if will work on idi..