N1 Water Pumps - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

LAURENCE · 22nd February 2007, 11:26 PM

Quick Question,

Any differences between the R32/33/34 Series of N1 Water Pump for RB26, or are they identical parts?

Cheers

lightspeed · 23rd February 2007, 05:47 AM

Just one part AFAIK.
Only other pump is Group A R32 which has a different impeller with less blades and 4 lightening holes in the drive flange. They are extremely rare.

kennyc · 23rd February 2007, 07:09 AM

R32's are different but you can modify the R33/34 quite easy to fit a 32

Cord · 23rd February 2007, 08:53 AM

The N1 pump has a slightly different bolt hole pattern that means one of the M6 bolts needs either a funny shaped washer, or the pump housing welding up and re-drilling to make it seal on a 32 block.

However do you need an N1 pump? The N1 pump has a different shaped impellor that makes it good for sustained high RPM work without cavitation. Unless you plan on running a lot of rev's for a long time (i.e. a race car) then it is not really needed.

LAURENCE · 23rd February 2007, 09:06 AM

Cheers guys. I've sourced a R32 N1 Pump (brand new)from a seller for quite cheap - cheaper than brand new stocker, and rebuilding my 32 motor so wanted to fit strong parts, will be using it on track a few times this summer, Cord (not excessive rpm) Does anyone have seperate images of N1 Pump compared to Stock Pump please , just so I can confirm the one I am buying is the N1 version. Thanks for your help.

LAURENCE · 26th February 2007, 09:11 PM

N1 Top, 6 Blades, Anti-Cavitation Plate
Stock Bottom, 8 Blades

Scott · 27th February 2007, 05:55 PM

When my water pump let go I was surprised to find the N1 pump was 1/3 the price of a stock R32 GTR pump and 1/2 the price of a GTS.

Bargains like that don't happen often in this game.

22nd February 2007, 11:26 PM	#1 (permalink)
LAURENCE LAURENCE is unaware they can edit their status GTR Register Member Join Date: Jan 2005 Location: CPR - Car Planet Racing, Warrington Cars owned: R33 GTR T04Z Posts: 647	N1 Water Pumps Quick Question, Any differences between the R32/33/34 Series of N1 Water Pump for RB26, or are they identical parts? Cheers __________________

23rd February 2007, 05:47 AM	#2 (permalink)
lightspeed lightspeed is building an HKS Step 3 2.8 :) GTROC Member Join Date: Jul 2002 Location: South-west Cars owned: Project BNR32 Posts: 2,756	Just one part AFAIK. Only other pump is Group A R32 which has a different impeller with less blades and 4 lightening holes in the drive flange. They are extremely rare. __________________

23rd February 2007, 07:09 AM	#3 (permalink)
kennyc kennyc is on the look-out GTR Register User Join Date: Aug 2005 Location: Scotland Posts: 641	R32's are different but you can modify the R33/34 quite easy to fit a 32 __________________

23rd February 2007, 08:53 AM	#4 (permalink)
Cord Cord is unaware they can edit their status GTR Register Member Join Date: Aug 2002 Location: RB Motorsport Cars owned: dirty poo Posts: 1,568	The N1 pump has a slightly different bolt hole pattern that means one of the M6 bolts needs either a funny shaped washer, or the pump housing welding up and re-drilling to make it seal on a 32 block. However do you need an N1 pump? The N1 pump has a different shaped impellor that makes it good for sustained high RPM work without cavitation. Unless you plan on running a lot of rev's for a long time (i.e. a race car) then it is not really needed. __________________

23rd February 2007, 09:06 AM	#5 (permalink)
LAURENCE LAURENCE is unaware they can edit their status GTR Register Member Join Date: Jan 2005 Location: CPR - Car Planet Racing, Warrington Cars owned: R33 GTR T04Z Posts: 647	Cheers guys. I've sourced a R32 N1 Pump (brand new)from a seller for quite cheap - cheaper than brand new stocker, and rebuilding my 32 motor so wanted to fit strong parts, will be using it on track a few times this summer, Cord (not excessive rpm) Does anyone have seperate images of N1 Pump compared to Stock Pump please , just so I can confirm the one I am buying is the N1 version. Thanks for your help. __________________

26th February 2007, 09:11 PM	#6 (permalink)
LAURENCE LAURENCE is unaware they can edit their status GTR Register Member Join Date: Jan 2005 Location: CPR - Car Planet Racing, Warrington Cars owned: R33 GTR T04Z Posts: 647	N1 Top, 6 Blades, Anti-Cavitation Plate Stock Bottom, 8 Blades __________________

27th February 2007, 05:55 PM	#7 (permalink)
Scott Scott is GTROC #005 Just your regular Joe!!! Join Date: Jun 2001 Location: at 'ome Cars owned: BNR32. Posts: 6,417	When my water pump let go I was surprised to find the N1 pump was 1/3 the price of a stock R32 GTR pump and 1/2 the price of a GTS. Bargains like that don't happen often in this game. __________________ Regards, Scott. O O SKYLINE O O My R32's full restoration: To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Air Filters: To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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