R32 Gtr Water Pump And Oil Pump

[lozz_ti]

hi all,

new to this forum. i have just bought my first skyline a r32 gtr with 110k on the clock pretty much standard as far as i can tell other than a hks dump pipes back exhaust, pod filters, coil overs and r33 gtr wheels and i want to keep it as standard as possible. i noticed that the timing belt has not been changed so i'm going to change it asap and was thinking about upgrading the water pump while i'm at it.

my question is can i just order an after market water pump to suit a r34 gtr n1 and fit that?

also i plan to do a few track days and was also thinking about upgrading the oil pump as i have heard they are prone to failures on the rb26. is it more on high performance/high rpm rb26's that have oil pump failures?

how hard is it to change the oil pump? does the engine have to be removed from the car or can it be done from the front of the engine while i'm doing the timing belt?

is there anything else i should consider doing before doing any track days?

i don't know much about skylines but i am a diesel fitter so doing the work to the car shouldn't be a problem.

any info would be greatly appreciated.

thanks, lozz

[Waxhead]

If the car's primary purpose is as a street car, you are better off sticking with a standard water pump. The N1 water pump appears to be better suited to engines running at high RPM, and it seems does not cool as well as the standard pump when sitting in traffic/ running at low RPM.

As for the oil pump, you might want to read the millions of threads about RB26 oil pumps in the forced induction section. Good luck with that, you can easily spend hours trying to get your head around it all.

[lozz_ti]

thanks for the reply. i will fit a new standard water pump.

i have now spent a fair while reading about oil pumps and i read some where that after 91 they improved the crankshaft where the oil pump sits meaning that i shouldn't have a issue with stripping the gear off the crank? also read that some people just over fill the sump by about 1L to over come the engine running dry on track days.

is that info correct? i have spent hours reading about different pumps and what not. i hope i have got the right info.

thanks, lozz

[Waxhead]

Yeah, later model BNR32 has an improved crank for driving the oil pump. It is advisable to add a crank collar to earlier model cranks, or replace the crank.

Edited August 19, 2012 by Waxhead

[Moodles2]

Hitting the limiter (ignition cut) is what hammers the oil pump drive on the crankshaft into the oil pump, setting a high rev limit (or better yet avoiding the 8000rpm limiter altogher) or a soft limit via a tune where the power dies off after 7000rpm

[boostn0199]

To go aftermarket hi flow pump youd need the head oil mods to restrict the flow, without doing them i would just upgrade to stronger gears in the std pump if youre really worried about it.

[lozz_ti]

by upgrading the gears in the pump would it then good enough to do the occassion drift practice?

to change the pump gears is that an engine out job? what gears fit in the stabdard pump?

cheers, lozz

Edited August 20, 2012 by lozz_ti

[Waxhead]

http://www.skylinesaustralia.com/forums/topic/376478-reimax-or-jpc-oil-pump-gears/

JPC (Johnson Performance Centre, http://www.jpc.com.au/) or Reimax

I am pretty sure engine out to change the pump, but someone else on here may know otherwise.

[boostn0199]

by upgrading the gears in the pump would it then good enough to do the occassion drift practice?

to change the pump gears is that an engine out job? what gears fit in the stabdard pump?

cheers, lozz

The standard pump and gears are fine for a ful time drift car, ive got a stock bottom end rb25 in my full time drift car woth 320kw and does 1 or 2 drift events a month for last 2 years and no problems. Thats with alot of limiter smashing lol.

[lozz_ti]

is the rb25 pump and gear the same as rb26?

cheers, lozz