N1 Water Pump

[Fumes21]

Guys will a r33 N1 water pump fit on an rb30 block as I have been told they have a slightly different bolt pattern and can leak is this true?

[N1GTR]

There is a slight section that needs to be filled up, have a look at the old pump compared to the n1 pump, one of the bolt holes is an oval'ish' shape

Compare the 2, it will make sense

[Sydneykid]

Why would you want to use an N1 water pump on an RB30?

Planning on circuit work using more than 7,000 rpm continuously?

That's what N1 water pumps were designed for.

They were NOT designed for driving around the streets using the full range of rpm or idling in traffic.

Cheers

Gary

[Fumes21]

Yeah tnanks for that SK,my engine will be for street only.When I was looking at purchasing the N1 pump I was told by the company that I'm buying it off ( Japanese Garage Brisbane) that they use the N1 water pumps on all there road cars,they also said thats what they were designed for.But you believe I should stay clear of one and what just use standard rb30 pump?

[bubba]

I've got a new standard RB20 water pump waiting to go on when my existing RB20 one dies. I think the fin design of the newer pumps is better than the old RB30 item?

[IanB]

Ive read somewhere that the RB30ET pump flowed better then the RB26 std item?

Im going to whack one on my 26 tomorrow as its water pump has died. is this a bad idea?

[Sydneykid]

Yeah tnanks for that SK,my engine will be for street only.When I was looking at purchasing the N1 pump I was told by the company that I'm buying it off ( Japanese Garage Brisbane) that they use the N1 water pumps on all there road cars,they also said thats what they were designed for.But you believe I should stay clear of one and what just use standard rb30 pump?

"N1" is the FIA group designation for Production Racing, it's NOT Nissan's designation for "better than standard" like some people seem to believe. N1 parts were designed by Nismo (and homologated by Nissan) for the R32GTR's racing in long distance Production Car races like the Spa 24 Hours etc.

Cheers

Gary