Author Topic: Rabbit pump vs Eco pump  (Read 26866 times)

November 09, 2012, 01:33:36 pm

jboogie13

  • Junior

  • Offline
  • **

  • 175
Rabbit pump vs Eco pump
« on: November 09, 2012, 01:33:36 pm »
hi all, i searched but didnt realy find an answer to my question.

i just picked up an injection pump from a caddy (rabbit pickup) for pretty cheap (<60$). my question is, with the proper re-seal and tuning setup would i notice an increase in power over my eco? (8mm plunger vs 9mm) or would i be better off doing a guts swap form a pug pump? im not scared to learn how to tune these pumps, i just dont want to run down a dead end street if you know what i mean.

Reply #1November 09, 2012, 02:10:40 pm

burn_your_money

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 8999
  • Personal Text
    Bright, On
Re: Rabbit pump vs Eco pump
« Reply #1 on: November 09, 2012, 02:10:40 pm »
Get a turbo diesel pump.

Either pump you have now can deliver enough fuel, it will just take the 8mm pump a longer duration to inject it, assuming the camplates are the same, which I have no idea.
Tyler

Reply #2November 09, 2012, 02:38:32 pm

jboogie13

  • Junior

  • Offline
  • **

  • 175
Re: Rabbit pump vs Eco pump
« Reply #2 on: November 09, 2012, 02:38:32 pm »
easier said than done, i havent been able to find a TD pump for a reasonable price anywhere, everybody thinks their td pump core is worth the world

would a peugot 504td pump top swap onto the NA pump?

Reply #3November 09, 2012, 04:04:49 pm

RabbitJockey

  • Veteran

  • Offline
  • ***

  • 5104
  • Personal Text
    America, DUCK YEAH!!!
Re: Rabbit pump vs Eco pump
« Reply #3 on: November 09, 2012, 04:04:49 pm »
what do you think is reasonable?  i usually see good but used td pumps for 100-200 dollars which i think is fair.  to me anything of unknown condition is not worth much who knows what it will need when u send it out to get rebuilt, but that is totally different from a known good pump.
01 Jetta TDI 100% stock daily
81 Rabbit:TDI-M ported head, Frank06 cam, PD intake, hybrid T3 turbo, Renault intercooler, Syl20 11mm pump, light weight fw, and yellow California Clutch clutch kit

Reply #4November 09, 2012, 05:30:20 pm

Blocksmith

  • Veteran

  • Offline
  • ***

  • 261
  • Personal Text
    Wrench Lurker
Re: Rabbit pump vs Eco pump
« Reply #4 on: November 09, 2012, 05:30:20 pm »
easier said than done, i havent been able to find a TD pump for a reasonable price anywhere, everybody thinks their td pump core is worth the world

would a peugot 504td pump top swap onto the NA pump?


You're on the right track--what you want is the LDA, which is essentially a variable fuel-limiter pin. I don't have any personal experience with Pugeot pumps, so I can't say for sure, but I believe it would be a straight-across swap. There was a guy on the FS threads who was selling a 10mm Pugeot pump not that long ago; he might still have it. Not only would that have an LDA top, but also you'd be getting a 10mm head/plunger assembly; always a plus  :D. What you need to keep in mind is that when swapping out the NA top for an LDA top onto an NA body, you have to knock out or cut off the fuel limiter pin in the NA pump body to allow the LDA to do its job. Even without the LDA though, a 9mm head/plunger will be able to flow enough fuel to destroy a stock motor, if properly tweaked. It's just a matter of how much smoke you'll be making off boost.
Green 83 Rabbit 4dr, 5 speed ACH trans swap, ported 1.6D mech lifter w/ vnt15, na pump w/ gov mod, gasser intake mani, 2.5" exhaust, bilstein sports and cut mk2 springs, ss brake lines, 14" vw bottlecaps

Reply #5November 09, 2012, 06:21:20 pm

jboogie13

  • Junior

  • Offline
  • **

  • 175
Re: Rabbit pump vs Eco pump
« Reply #5 on: November 09, 2012, 06:21:20 pm »
yeah, the LDA is what i was referring to by pump top (ill learn to be more specific some day... ;D) and thats the pump i was referring to (int he f/s section) my goal is to build up a pump/ learn to tune etc, so that i can just swap it onto my car ( and turn up boost etc as well) that way if things dont work out i have the stock pump which is known to work since the car is my daily.

Reply #6November 09, 2012, 08:24:26 pm

8v-of-fury

  • Guest
Re: Rabbit pump vs Eco pump
« Reply #6 on: November 09, 2012, 08:24:26 pm »
That Peugeot pump that was for sale by funkmasterg (sorry can't recall exactly), is now in my possession ;) Someone bought it and had it shipped to me to have resealed and modified :D. Other than the 10mm plunger, the Peugeot pump is not really desirable. It has a weaker cam plate than the 1.6 pump, and also a poorer boost pin.

The 9mm internals are more than enough for a 1.6. Don't waste your time there, trying to hunt down a 10 or 11mm setup. Another option is to just run a non-turbo pump with the 9mm running gear.. It will move the same amount of fuel and the only difference will be you control smoke with your right foot, and not the boost pin.

Reply #7November 09, 2012, 08:51:52 pm

jboogie13

  • Junior

  • Offline
  • **

  • 175
Re: Rabbit pump vs Eco pump
« Reply #7 on: November 09, 2012, 08:51:52 pm »
he has another pump of the same design, will the LDA swap onto the 9mm pump? this making somewhat of a bastard TD pump?

Reply #8November 09, 2012, 09:12:12 pm

8v-of-fury

  • Guest
Re: Rabbit pump vs Eco pump
« Reply #8 on: November 09, 2012, 09:12:12 pm »
Physically yes, it looks identical to the 1.6 TD lid. You will have to remove the limiter pin inside of the 9mm N/A pump if you so decide to go that route.

I have sent/am sending you a PM.

Reply #9November 09, 2012, 09:16:44 pm

libbydiesel

  • Global Moderator
  • Veteran

  • Offline
  • ****

  • 3399
Re: Rabbit pump vs Eco pump
« Reply #9 on: November 09, 2012, 09:16:44 pm »
Is the LDA lever on the same side as the Vw pumps or opposite like the Cummins?

Reply #10November 10, 2012, 06:36:46 am

8v-of-fury

  • Guest
Re: Rabbit pump vs Eco pump
« Reply #10 on: November 10, 2012, 06:36:46 am »
Is the LDA lever on the same side as the Vw pumps or opposite like the Cummins?

Hmm, I'll run down and take a look see.

Reply #11November 10, 2012, 06:56:29 am

8v-of-fury

  • Guest
Re: Rabbit pump vs Eco pump
« Reply #11 on: November 10, 2012, 06:56:29 am »
Identical. Minus the idle bump lever, Peugeot left and 1.6 TD right.


Reply #12November 10, 2012, 07:43:36 am

92EcoDiesel Jetta

  • Guest
Re: Rabbit pump vs Eco pump
« Reply #12 on: November 10, 2012, 07:43:36 am »
So what's the issue with the Peugeot LDA as far as transplanting it to the Ecodiesel pump? I have about 5 Peugeot TD pumps, some are 9 , some are 10 mm.

Reply #13November 10, 2012, 09:02:11 am

8v-of-fury

  • Guest
Re: Rabbit pump vs Eco pump
« Reply #13 on: November 10, 2012, 09:02:11 am »
So what's the issue with the Peugeot LDA as far as transplanting it to the Ecodiesel pump? I have about 5 Peugeot TD pumps, some are 9 , some are 10 mm.

No issue. As stated above, they are identical lids.

Reply #14November 12, 2012, 09:47:11 am

R.O.R-2.0

  • Veteran

  • Offline
  • ***

  • 7335
  • Personal Text
    Pacific Northwest - Oregon - USA
Re: Rabbit pump vs Eco pump
« Reply #14 on: November 12, 2012, 09:47:11 am »
easier said than done, i havent been able to find a TD pump for a reasonable price anywhere, everybody thinks their td pump core is worth the world

would a peugot 504td pump top swap onto the NA pump?


You're on the right track--what you want is the LDA, which is essentially a variable fuel-limiter pin. I don't have any personal experience with Pugeot pumps, so I can't say for sure, but I believe it would be a straight-across swap. There was a guy on the FS threads who was selling a 10mm Pugeot pump not that long ago; he might still have it. Not only would that have an LDA top, but also you'd be getting a 10mm head/plunger assembly; always a plus  :D. What you need to keep in mind is that when swapping out the NA top for an LDA top onto an NA body, you have to knock out or cut off the fuel limiter pin in the NA pump body to allow the LDA to do its job. Even without the LDA though, a 9mm head/plunger will be able to flow enough fuel to destroy a stock motor, if properly tweaked. It's just a matter of how much smoke you'll be making off boost.

Peugeot pump WILL NOT fit the VW bracket without removing the bracket, and re-drilling it for the pug pump..

a 9mm wont burn an engine down unless you have a severely restrictive turbo, and not enough boost..

and like was mentioned, you NEED to remove the max fuel limiter pin out of the n/a pump body to make an LDA do anything..

i wouldnt go with a 10mm pump unless you have plans of pretty wild power..

i WOULD NOT however, use your 8mm pump.. really a waste of time to even modify it.. i would just start out with a n/a pump, and add the LDA.. the 8mm plunger is a severe limitation.

my current pump is a rebuilt n/a body, with a rebuilt VW LDA assembly fitted.. it is in every way, identical to a TD pump...

also, you will have to modify the fulcrum plate of ANY VW pump to fit the peugeot top, being that there is also a mechanical shut-off on the pug. its the lever on the far left in the last pic..

would be better to just find a n/a pump, and keep your eco pump whole, as a spare WHEN you need it..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.