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Author Topic: Anyone found a 100% bolt-on MTDI pump yet?  (Read 30624 times)

Reply #15December 01, 2009, 10:32:57 pm

blackdogvan

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #15 on: December 01, 2009, 10:32:57 pm »
We've had good luck with these.

http://www.advancedautomotion.com/product_info.php?cPath=66_132&products_id=109

I think I just found the answer to my wanting to put a ALH in my bus.  ;D

Nothing against those LT pumps or the vendor but Karl's pumps are cheaper, are tested on and i believe setup for our engines and come with the correct pulley setup for your engine (1Z/AHU or ALH). For that snack bracket cost wise its where i'd be spending my money.
1991 Vanagon 1.9 mTDI

Reply #16December 01, 2009, 11:01:43 pm

diesel smoke

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #16 on: December 01, 2009, 11:01:43 pm »
Link? ???
'99.5 Bora TDI
'88 Fox Coupe
'71 Tin Top Westfalia Bus
'85 Mercedes 300SD

Reply #17December 01, 2009, 11:55:16 pm

blackdogvan

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #17 on: December 01, 2009, 11:55:16 pm »
1991 Vanagon 1.9 mTDI

Reply #18December 02, 2009, 11:28:02 pm

diesel smoke

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #18 on: December 02, 2009, 11:28:02 pm »
Sweet. Thanks. 8) Now I wonder if my bus' transmission will hate me from all the torque. :o Still would have to re-gear it... or maybe a trans from a diesel Vanagon would fit if I changed the nose cone and bell housing. ??? I do know that they are different from the air cooled bus ones.
'99.5 Bora TDI
'88 Fox Coupe
'71 Tin Top Westfalia Bus
'85 Mercedes 300SD

Reply #19December 03, 2009, 01:55:45 am

westyventures

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #19 on: December 03, 2009, 01:55:45 am »
The LT 2.8 pumps work pretty well, but the biggest issue is the 'low-smoke' throttle/governor setup - it holds back fueling until rpms and boost come up. I'm running one of those on my 'test rig' and another one a customer's van. In his, I had to lighten the tiny spring in the lever assy. to get it to respond. You 'could' replace the lever assy. with the standard type and get around the issue. This pump does have a nice advance setup. The 4BT pumps I build don't have the low-smoke governor but take me a little more work to dial in timing. I have about 25 new 4BT pumps to build, plus five of another non-aneroid type I've started putting together that really work super in 10mm form.

Tranny: the diesel van tranny has no advantage, the newer trannies are better but all need taller 3rd and 4th for the TDI.
Karl Mullendore
www.westyventures.com

Reply #20December 03, 2009, 10:27:27 pm

diesel smoke

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #20 on: December 03, 2009, 10:27:27 pm »
But aren't the diesel Vanagon transmissions already geared lower than the gas ones? So then why would I need to swap gears?
'99.5 Bora TDI
'88 Fox Coupe
'71 Tin Top Westfalia Bus
'85 Mercedes 300SD

Reply #21December 03, 2009, 10:46:53 pm

westyventures

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #21 on: December 03, 2009, 10:46:53 pm »
But aren't the diesel Vanagon transmissions already geared lower than the gas ones? So then why would I need to swap gears?

They are geared much lower - you'll need much higher or 'taller' gearing than the gasser for a TDI. I normally gear customer TDI vans 10-20% taller than the gasser gearing, depending on the diameter of the tires to be used.
Karl Mullendore
www.westyventures.com

Reply #22December 03, 2009, 10:58:26 pm

diesel smoke

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #22 on: December 03, 2009, 10:58:26 pm »
But aren't the diesel Vanagon transmissions already geared taller than the gas ones making them a perfect match to the TDI?
'99.5 Bora TDI
'88 Fox Coupe
'71 Tin Top Westfalia Bus
'85 Mercedes 300SD

Reply #23December 03, 2009, 11:08:17 pm

blackdogvan

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #23 on: December 03, 2009, 11:08:17 pm »
But aren't the diesel Vanagon transmissions already geared taller than the gas ones making them a perfect match to the TDI?

I think you have it backwards, lower gearing in this case means higher rpm. We van diesel folk with some hp need higher/taller gearing to drop the rpm to a better cruising range.

The original diesel vans sold in canada & the US was a 1.6 natural, something like 50hp.... they needed the low gearing to climb a railway grade! (1%)
1991 Vanagon 1.9 mTDI

Reply #24December 03, 2009, 11:16:26 pm

diesel smoke

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #24 on: December 03, 2009, 11:16:26 pm »
 :D Haha! Come on, you know what I meant.  :P If that is the case, perhaps I'll find someone locally who can rebuild my transmission with the taller 3rd and 4th to work with the TDI. Anyone know what set of gears I should get and from where?

Hey Vince, Do you know how to rebuild transmissions?  ;)
'99.5 Bora TDI
'88 Fox Coupe
'71 Tin Top Westfalia Bus
'85 Mercedes 300SD

Reply #25December 04, 2009, 04:42:47 pm

blackdogvan

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #25 on: December 04, 2009, 04:42:47 pm »
The LT 2.8 pumps work pretty well, but the biggest issue is the 'low-smoke' throttle/governor setup - it holds back fueling until rpms and boost come up. I'm running one of those on my 'test rig' and another one a customer's van. In his, I had to lighten the tiny spring in the lever assy. to get it to respond. You 'could' replace the lever assy. with the standard type and get around the issue. This pump does have a nice advance setup. The 4BT pumps I build don't have the low-smoke governor but take me a little more work to dial in timing. I have about 25 new 4BT pumps to build, plus five of another non-aneroid type I've started putting together that really work super in 10mm form.

Tranny: the diesel van tranny has no advantage, the newer trannies are better but all need taller 3rd and 4th for the TDI.

Care to share a bit on these pumps Karl? Not the internal setup & part numbers, just a little more detail on their makeup & operation?? No Boost fueling or a differnt style of boost fueling??
1991 Vanagon 1.9 mTDI

Reply #26December 04, 2009, 05:56:28 pm

westyventures

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #26 on: December 04, 2009, 05:56:28 pm »
Care to share a bit on these pumps Karl? Not the internal setup & part numbers, just a little more detail on their makeup & operation?? No Boost fueling or a differnt style of boost fueling??

These are NA pumps, German Bosch, came on some sort of diesel generator as they had a really low setting on the throttle arm and 8mm plunger. However, they do have a 20mm shaft! The aneroid on a TD pump doesn't supply more fuel, more accurately it is a fuel limiter. As boost pressure rises, the aneroid acts to allow more throttle movement internally. These pumps work really well because there is basically no limitation. The stock turbo spools so quickly that a limiter on the fueling is not needed. I use a TDI camplate, timing bits, and pump head, and throttle shaft/lever/spring for the LT pump. At first I doubted it would work well, but a customer asked me to test it on his van, which has a basically stock AHU but with PP520 nozzles. The previous pump was one of the Ohio-built 1.6NA-TDI hybrid pumps. This one has tons of power over that one and is very quiet. Hope I can nail it like that on the next five of the same pump that I bought.
Karl Mullendore
www.westyventures.com

Reply #27December 10, 2009, 11:28:47 am

scottmandu

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #27 on: December 10, 2009, 11:28:47 am »
Nothing against those LT pumps or the vendor but Karl's pumps are cheaper, are tested on and i believe setup for our engines and come with the correct pulley setup for your engine (1Z/AHU or ALH). For that snack bracket cost wise its where i'd be spending my money.

That's not really a fair comparison, the LT pumps have the larger 12mm pump head capable of supporting much larger nozzles than the smaller 10mm and 11mm pump heads. New the Bosch 12mm pump heads are half the cost of the entire pump!
« Last Edit: December 10, 2009, 11:39:13 am by scottmandu »

Reply #28December 10, 2009, 11:46:05 am

westyventures

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #28 on: December 10, 2009, 11:46:05 am »


That's not really a fair comparison, the LT pumps have the larger 12mm pump head capable of supporting much larger nozzles than the smaller 10mm and 11mm pump heads. New the Bosch 12mm pump heads are half the cost of the entire pump!

My pumps are the same price regardless of 10-11-12mm. If you'd like to buy new, un-modified German 12mm pumps (not the LT, but 4BT) I'll sell you a few at 600.
Karl Mullendore
www.westyventures.com

Reply #29December 10, 2009, 01:23:18 pm

blackdogvan

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Re: Anyone found a 100% bolt-on MTDI pump yet?
« Reply #29 on: December 10, 2009, 01:23:18 pm »
Nothing against those LT pumps or the vendor but Karl's pumps are cheaper, are tested on and i believe setup for our engines and come with the correct pulley setup for your engine (1Z/AHU or ALH). For that snack bracket cost wise its where i'd be spending my money.

That's not really a fair comparison, the LT pumps have the larger 12mm pump head capable of supporting much larger nozzles than the smaller 10mm and 11mm pump heads. New the Bosch 12mm pump heads are half the cost of the entire pump!

How the heck isn't that a fair comparison??

I don't want to come across as having a man crush on Karl or his pumps but they have the same 12mm head, are cheaper, have been mounted on a 1.9 & adjusted for a 1.9, come with the correct sprocket and bolt right in.
1991 Vanagon 1.9 mTDI

 

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