20vt Waterpump Measurements

Don@STaSIS · 06-10-2003, 09:06 AM

Howdy! Got another quick request, does anyone have a 20v turbo waterpump lying around? I would like to get some quick measurements from it to compare to the RS2 waterpump.

TIA!

Ben's e//S2 · 06-10-2003, 10:22 AM

i have one. what exactly do you need alex?

Audilard · 06-10-2003, 10:40 AM

I have one as well.

Don@STaSIS · 06-10-2003, 02:02 PM

Don@STaSIS · 06-10-2003, 02:23 PM

Looking for measurements on these parts.

I just wondered if the pulley was a different size or the impeller was larger if possible.

Also if you can snap pictures to compare that would be excellent. Maybe we can confirm the RS2 waterpump is a better unit...

Cheers!

Ben's e//S2 · 06-10-2003, 06:54 PM

both the sprocket side and the propeller side measure 70mm in diameter.

hope this helps!

Jimmy Pribble · 06-11-2003, 06:43 AM

035 121 004 A
The box notes a cross to 035 121 005 E.

Passat, Audi 80/100
Audi 200/200 Turbo
Coupe 1.9/2.2l

impeller: 2.83" (71.88 mm)

I couldn't get a good measurement on the pulley because it has a "cap" and my dial caliper couldn't reach far enough to get the diameter of the pulley surface. The cap was 3.283" (83.39 mm). The pulley surface diameter isn't that much smaller than the cap and it is by far larger than the diameter of the impeller, so it is much larger than archiboy's.

HTH,

Don@STaSIS · 06-11-2003, 03:21 PM

OK first question, since I assume the pictures from Archiboy are the 3B pump, how does the AAN and ADU tension the timing belt, obviously not via the pump as with all the 5 cylinders I ever worked with?

Now I am seeing a tensioning device for the relay roller on the AAN, but not the 3B, so that must be it right, there is a self tensioning or separate tensioning device aside from the pump on the AAN, ABY, ADU.

OK so what I am getting to is that the RS2 pump would only work for the AAN, ABY, not the 3B, different tensioning mechanisms. The RS2 pump pulley is smaller, 64.5mm, than the AAN pump which is looking like over 80mm, but the impeller is roughly the same size. Now that would lead me to believe the RS2 pump is going to spin faster than the stock AAN pump at the same RPM, right?

If I am correct an AAN, ABY should fit the RS2 pump with the RS2 belt and have a faster flowing coolant system, no?

TIA!

Ben's e//S2 · 06-12-2003, 07:31 AM

Don@STaSIS · 06-12-2003, 09:23 AM

06-10-2003, 09:06 AM	#1
Don@STaSIS Senior Member Account #: 17405 Join Date: Mar 2001 Posts: 6,324	20vt Waterpump Measurements Howdy! Got another quick request, does anyone have a 20v turbo waterpump lying around? I would like to get some quick measurements from it to compare to the RS2 waterpump. TIA! __________________ STaSIS Engineering www.stasisengineering.com

06-10-2003, 10:22 AM	#2
Ben's e//S2 Member Account #: 19587 Join Date: May 2001 Location: Calgary, Alberta Posts: 4,007	Re: 20vt Waterpump Measurements i have one. what exactly do you need alex? __________________ ------------------- 1991 Coupe Quattro Panther black metallic Fully RS2'ed 3B e//S2 Conversion 2009 A3 2.0t quattro premium Ibis white Calgary,Alberta Canada

06-10-2003, 10:40 AM	#3
Audilard Member Account #: 2752 Join Date: Mar 2000 Posts: 4,049	Re: 20vt Waterpump Measurements I have one as well. __________________ 1990 CQ Built 2.3 20vt (Lago) 1999 A4 1.8tq

06-10-2003, 02:02 PM	#4
Don@STaSIS Senior Member Account #: 17405 Join Date: Mar 2001 Posts: 6,324	I'll have a picture diagram shortly! Running around like a chicken with it's head cutoff;) __________________ STaSIS Engineering www.stasisengineering.com

06-10-2003, 02:23 PM	#5
Don@STaSIS Senior Member Account #: 17405 Join Date: Mar 2001 Posts: 6,324	Measure this... Looking for measurements on these parts. I just wondered if the pulley was a different size or the impeller was larger if possible. Also if you can snap pictures to compare that would be excellent. Maybe we can confirm the RS2 waterpump is a better unit... Cheers! __________________ STaSIS Engineering www.stasisengineering.com

06-10-2003, 06:54 PM	#6
Ben's e//S2 Member Account #: 19587 Join Date: May 2001 Location: Calgary, Alberta Posts: 4,007	here are your measurements... both the sprocket side and the propeller side measure 70mm in diameter. hope this helps! __________________ ------------------- 1991 Coupe Quattro Panther black metallic Fully RS2'ed 3B e//S2 Conversion 2009 A3 2.0t quattro premium Ibis white Calgary,Alberta Canada

06-11-2003, 06:43 AM	#7
Jimmy Pribble Junior Member Account #: 4916 Join Date: May 2000 Posts: 1,358	more measurements... 035 121 004 A The box notes a cross to 035 121 005 E. Passat, Audi 80/100 Audi 200/200 Turbo Coupe 1.9/2.2l impeller: 2.83" (71.88 mm) I couldn't get a good measurement on the pulley because it has a "cap" and my dial caliper couldn't reach far enough to get the diameter of the pulley surface. The cap was 3.283" (83.39 mm). The pulley surface diameter isn't that much smaller than the cap and it is by far larger than the diameter of the impeller, so it is much larger than archiboy's. HTH, __________________ '00 A6 2.7t (Sold) '94 UrS4 (Street) '93 UrS4 (RIP) '90 eS2 (Track) '83 UrQuattro (Sold)

06-11-2003, 03:21 PM	#8
Don@STaSIS Senior Member Account #: 17405 Join Date: Mar 2001 Posts: 6,324	Hold the phones, I am seeing some major differences here... OK first question, since I assume the pictures from Archiboy are the 3B pump, how does the AAN and ADU tension the timing belt, obviously not via the pump as with all the 5 cylinders I ever worked with? Now I am seeing a tensioning device for the relay roller on the AAN, but not the 3B, so that must be it right, there is a self tensioning or separate tensioning device aside from the pump on the AAN, ABY, ADU. OK so what I am getting to is that the RS2 pump would only work for the AAN, ABY, not the 3B, different tensioning mechanisms. The RS2 pump pulley is smaller, 64.5mm, than the AAN pump which is looking like over 80mm, but the impeller is roughly the same size. Now that would lead me to believe the RS2 pump is going to spin faster than the stock AAN pump at the same RPM, right? If I am correct an AAN, ABY should fit the RS2 pump with the RS2 belt and have a faster flowing coolant system, no? TIA! __________________ STaSIS Engineering www.stasisengineering.com

06-12-2003, 07:31 AM	#9
Ben's e//S2 Member Account #: 19587 Join Date: May 2001 Location: Calgary, Alberta Posts: 4,007	that sounds right to me alex. __________________ ------------------- 1991 Coupe Quattro Panther black metallic Fully RS2'ed 3B e//S2 Conversion 2009 A3 2.0t quattro premium Ibis white Calgary,Alberta Canada

06-12-2003, 09:23 AM	#10
Don@STaSIS Senior Member Account #: 17405 Join Date: Mar 2001 Posts: 6,324	Cool, so who wants to do the math and the upgrade to see what improvement is possible;-) __________________ STaSIS Engineering www.stasisengineering.com

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