Can Someone Direct Me To Get A N1 Water Pump

[ryan_o_grady]

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As title states im chasing a N1 Water pump for my Rb20.

Can someone direct me to where I can get one.

Thanks.Ryan

[lwells]

Is this for a street driven car or a track car? I remember SK warning against using an N1 water pump in a street driven car as they are low cavitation IIRC and those prone to failure in stop start traffic.

[-Chris-]

http://www.justjap.com/parts_nengine.htm

hope this helps.

-Chris

[ryan_o_grady]

So if N1 Pumps are no good in street driven cars is this because they are prone to low revs cavitation?I was under the impression that they were made especially to not cavitate???

Does anyone else know of a larger pulley to put on the stock water pump to slow it down.

If anyone knows of what to use and where to get it from can they let me know.

[lwells]

So if N1 Pumps are no good in street driven cars is this because they are prone to low revs cavitation?I was under the impression that they were made especially to not cavitate???

Does anyone else know of a larger pulley to put on the stock water pump to slow it down.

If anyone knows of what to use and where to get it from can they let me know.

<{POST_SNAPBACK}>

Straight from the horse's mouth:

Maybe I am the only one who has compared them, but the spec sheet confirms it. The N1 water pump is specifically designed for continuous high rpm use, so it doesn't cavitate. This means it pumps less water around at lower rpm. So if you use your RB26 a lot (only) on the track, an N1 water pump is maybe worthwhile. But driving around the street it will be a handicap, maybe on hot days with the aircon on, in traffic. The RB30 pump is much better for this as it was designed for lower (average) rpm.

[ryan_o_grady]

Yeah it makes sense.

So can anyone tell me where to get a larger pulley from?

Maybe another make of car uses a larger pulley but with same pattern??

[Duncan]

Per the post above, the RB30 pump is a better way to go, it has less blades than the standard pump but its not as bad as the N1 pump.

Plus they are super cheap to get since they are from a local engine

[Tizzle]

so where can we get this rb30 pump? local wrecker?

[ryan_o_grady]

Super Cheap Auto have them $80.

All RB engines use the same pump.IE RB30 Pump bolts to any RB engine.

I just want to use a larger pulley to slow it down so it wont cavitate up around 7-8000 revs.

[Craved]

so the RB30 ones flow more than an RB25 one as well?

are they worth the upgrade for a street car that goes to the track and will see traffic work...?

[blind_elk]

Super Cheap Auto have them $80.

So do Bursons. And I guess Nissan would have them (Doh!), and also Holden dealers (VL Commodore).

All RB engines use the same pump.IE RB30 Pump bolts to any RB engine.

<{POST_SNAPBACK}>

Not quite. I had to get one for a RB25 DET, and it turned out that there is a small (6mm) bolt that is in a slightly different location (about 1cm to one side). I had to get a pump from Nissan that has a slotted hole to accommodate either bolt position.

[Duncan]

Nope, the rb30 pump flows less than the standard pump, and the n1 pump flows less again...which is why the n1 pump may not be so great in traffic (although Ive never had trouble with the race car)

[StageZilla]

just bought one from nissan for my rb26 its a r33 gtr n1 waterpump and list price is $360+gst from nissan

cheers

Brad

[Scribble]

Nope, the rb30 pump flows less than the standard pump, and the n1 pump flows less again...which is why the n1 pump may not be so great in traffic (although Ive never had trouble with the race car)

<{POST_SNAPBACK}>

So if the RB30 pump flows less then what pump is recommended?

[Beer Baron]

for a street car? a new standard pump.

[fatz]

mmmm n1 ful sik!

[Blitz]

For what its worth, I have had an N1 water pump on my R33 GTR for 2 years now and never once had an issue - The car is a daily driven streeter.

I have another brand new one ready to go on in a few weeks time when my engine is done.