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LDA on an NA Pump?
by
klr650@
on 19 Sep, 2006 06:10
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I thought I heard somewhere that you can add the LDA from a turbo pump to and NA pump. Does anyonw konw if that's true? What would be benefit? Would you basically have a turbo pump at that point?
I've got a turbo engine with an NA pump. But I've got some nonfunctioning turbo pumps laying around. If adding the LDA is worth it, I'd make a go at swapping tops.
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#1
by
Justin
on 19 Sep, 2006 07:42
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The LDA will make a difference since it will allow you to add more fuel when under boost.
how much do you want for one of the non-functioning pumps because i really need an LDA top
Let me know its one of the only things that I need to complete the TDI project
later
Justin
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#2
by
klr650@
on 19 Sep, 2006 17:26
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Sorry guys I can't sell the pumps or any parts until I'm up and running for a bit. At the rate I'm going I'll need all 3 to get one good one.
So basically unbolt the top and swap in the LDA top. Guess I'll do the governor mod while I've got it opened. :twisted:
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#3
by
klr650@
on 19 Sep, 2006 19:48
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I tried the gov mod on one of the "test" pumps. The toughest part was getting the throttle springs back together. I shot those springs around my garage atleast 3 times! :oops:
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#4
by
QuickTD
on 19 Sep, 2006 20:17
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I honestly can't comprehend the complexity of the vw throttle spring setup. There really only needs to be one spring. All it does is return the lever. :roll:
Andrew
You should see the 1.9TD, makes the 1.6 spring setup look simple, the horror... I have no clue why they are like that, bosch engineers cousin maybe owns a spring shop?
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#5
by
935racer
on 19 Sep, 2006 20:23
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Specifically the passat 1.9td's, I only ever did one governor mod on a passat 1.9td pump, and it was the last one I care to do unless someone wants to pay $200 for a governor mod. The passats have another 1 or 2 springs more than the golf/jetta 1.9td's.
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#6
by
fatmobile
on 21 Sep, 2006 02:07
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I don't think you can put an LDA on top of an NA pump... without removing one of the posts inside.
I could be wrong but I think there is a stop on the NA pump body that the governor comes back and hits.
On the TD pump this stop isn't there and the finger coming down from the LDA stops it instead.
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#7
by
klr650@
on 21 Sep, 2006 19:02
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Ok, so what's the verdict here. Is this a bolt off bolt on mod? Anyone ever done this? Or should I be the tester?
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#8
by
Justin
on 21 Sep, 2006 22:04
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From what I have read in the past it should be a direct bolt on, but from what fatmobile says maybe it is a little more in depth with the govenor assembly
I am not sure since the Turbo pumps are so rare around here that I have never seen one to tell you the difference, if someone would sell me one I would let you know
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#9
by
fatmobile
on 22 Sep, 2006 01:57
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Andrew PMd me saying the extra post doesn't get in the way of the little finger.
Glad to hear that. I haven't actually swapped tops but did take a couple apart and take a look in there. I saw the extra post and didn't go any farther.
Glad to hear it isn't something that needs removed.
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#10
by
klr650@
on 22 Sep, 2006 05:33
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When I do mine, perhaps this weekend, I'll take photos. But I'll need some help posting them. Assuming people are interested.
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#11
by
sethyboy85
on 22 Sep, 2006 07:17
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I can help with the posting of pics
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#12
by
klr650@
on 23 Sep, 2006 22:09
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Ok, so I did the swap. Bolt off and then bolt on. Went pretty easy except those nasty springs, which I still have gotten back into place. I did the gov mod while I had it open. Still not running yet, but I know I'll be glad that I did the gov mod.
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#13
by
RabbitJockey
on 24 Sep, 2006 19:19
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you'll have to test it then, like turn the fueling on the lda up really high and see if it smokes a bunch to make sure it's installed right, cause giles made it sound like it was more than just bolting on the new top
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#14
by
sethyboy85
on 24 Sep, 2006 19:28
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yeah if so, I might try that then. I have a spare turbo pump in unknown condition and a good NA pump so slap em together and BAM! ha ha don't follow close!