The Fabled N1 Oil Pump Debate

[bubba]

oh, rev limiters kill the pumps too. if you have a "soft cut" limiter its not as bad. but a hard cut. (power fc) wont be helping. your crank is ok. it just dont like the revs and or limiter. and if you are reving it past 7k id be getting a better balancer. a r33 gtr n1 one at least

What would you define a "soft cut" and a "hard cut" as?

[GTR1993]

Can someone tell me by looking at this list what partnumber would be needed for a r32 gtr with r34 n1 engine

probably somewhere near 400kw, and is going to be pretty much a race only car with next to no street use.

http://www.atiperformanceproducts.com/prod...s/damnissan.htm

I've gotta get one of these before i put the motor in.

this is for Ati damper.

Cheers

Just as a side note the guy who builds (or used to build) kier wilsons GTR motors at wilall works at outlaw speed shop now. He says kiers car was running the "cheaper" of the 2 ATI balancers and was fine. So thats the one i went with.

[Angus Smart]

the price difference on the website i am looking at is

433us and 499us. so not a great deal but there are 3 or 4 different ones to choose from..

[GTR1993]

918599 seems to me to be R32 500 hp

917752 is R32 1000 hp

both retaining AC

But in your case you need 34 as follow your motor, so

918598 R34 500 hp

917753 R34 1000 hp

Edited May 19, 2008 by GTR1993

[NYTSKY]

This thread is making me want to buy an ATI balancer. Can i just put one on while my motor is out or will it need to be balanced with the engine internals again?

[Angus Smart]

This thread is making me want to buy an ATI balancer. Can i just put one on while my motor is out or will it need to be balanced with the engine internals again?

haha you and me both..

when they are back online (down for a big update)

http://www.horsepowerparts.com/

have them for a nice price... unless you can find better price

p.s. Cheers Alex..

Edited May 19, 2008 by Angus Smart

[GTR1993]

haha you and me both..

when they are back online (down for a big update)

http://www.horsepowerparts.com/

have them for a nice price... unless you can find better price

p.s. Cheers Alex..

I have seen those guys before, cheap prices. I ended up buying one from my local supplier for 700, more expensive but I support them as when i buy other parts like lots of speed flow fittings i can bring them back if they are the wrong ones etc.

My build if very basic with N1 pump but im going to balance the bottom end and run the ati balancer, hopefully will give me no dramas.

Cheers

[Adriano]

This thread is making me want to buy an ATI balancer. Can i just put one on while my motor is out or will it need to be balanced with the engine internals again?

Just bolt it on, they are balanced from the factory, unless the machine shop used your existing balancer to rectify any other imbalances

[T04GTR]

yeah i dont know hey.. abit confusing

[Guilt-Toy]

+1 on the new aftermarket balancer.

group buy ? what can we get in australia for what price?

There are other products appart from the ATI ?

[just32gtr]

what do you guys think of the ROSS balancers for rb26 with hi limiter like around the 8000-9000 rpm. because im putting on a big single want to make the most of it.

[Guilt-Toy]

yeah. i can get a ross balancer for $500 aud, if memory serves me correctly.

[Gradenko]

I'll be using a ROSS balancer for my build. Not sure of the differences compared to Ati (apart from price), but my mechanic uses it on all his builds and recommended it to me.

[just32gtr]

ok no worries ok i thought they were more than that good to no cheers.

[just32gtr]

what were the pumps the grp A GTRs used in japan were they 'renik'? can u still buy them? are they any good?

[Angus Smart]

www.greenline.jp has them

[unique1]

i got my ati balancer from mark at godzilla motorsport, great price for a 1000hp one, though it was 2+ years ago now so i dont know what they worth now.

[Shaun]

I spoke to a bloke at Ross Tuffbond today in regards to one of their balancers. I think for many of our applications (mostly street driven sub 400kw cars), the Ross balancers are more than suitable. While the ATI ones seem like an excellent product, theyre also very expensive at over $800 in Australia. Although i have come across new ati balancers on ebay for about US$350 + $100 postage, but these were for chevy V8's etc. Im yet to get an email back from them as to whether they can get RB26 ones for the same price.

Anyway, the guy from Ross said they've developed a pulley that attaches to the harmonic balancer that drives an external oil pump used in a dry sump set up. Im thinking of heading down this path eventually in an effort to bypass the poor design of the Nissan oil pump drive. I havent researched it yet, but surely it can be done for less than the price of a Jun or Tomie oil pump (>$1500!!).

Anyone know anything about dry sump set ups???

Shaun.

[Angus Smart]

ati balancer for 430-490 us for rb26 listed in the site i mentioned before.. horsepower parts

now as for drysump. i been looking at it for months, and i seen the costs of your typical normal setup

jun pump 1500

enlarged sump around 1000 ?

oil return mods 300?

now as for drysump.

the pump and the lines are the killer.

atleast 1000 for lines,

and atleast 1500 for a 4 stage pump and that only goes upwards.

tho you can source used pumps and systems from nascar teams in the states for rather cheep. and they have all the parts you need except lines...

check ebay usa for them..

i have since forgotten about drysumping for now

Edited May 20, 2008 by Angus Smart

[Shaun]

ati balancer for 430-490 us for rb26 listed in the site i mentioned before.. horsepower parts

now as for drysump. i been looking at it for months, and i seen the costs of your typical normal setup

jun pump 1500

enlarged sump around 1000 ?

oil return mods 300?

now as for drysump.

the pump and the lines are the killer.

atleast 1000 for lines,

and atleast 1500 for a 4 stage pump and that only goes upwards.

tho you can source used pumps and systems from nascar teams in the states for rather cheep. and they have all the parts you need except lines...

check ebay usa for them..

i have since forgotten about drysumping for now

Yeah, i hear what youre saying. I just did 10 minutes of searching on this forum and quickly discovered that dry sump set ups are way out of my league.

There goes that idea!

Shaun.