n1 oil pump

[KNG-32R]

does anyone know much about these oil pumps on gtr's

apparently under load they suck the sump dry is this true

any help would be appreciated

cheers damo

[[[d a n n y]]]

havent heard anything like that..

but in my setup i got the N1 pump and oil baffle pan + restrictors too

so i guess there is a possibility..that it will

[KNG-32R]

]']havent heard anything like that..

but in my setup i got the N1 pump and oil baffle pan + restrictors too  

so i guess there is a possibility..that it will

what kind of restrictors and what for

[Duncan]

Restrictor goes in the oil line to the head to keep oil in the sump. There is one in there standard but many put in an even smaller one

Courtesy of tomei website: http://www.tomei-p.co.jp/_2003web-catalogu...RB_oillube.html

[KNG-32R]

thanks mate

[PHATR32]

would restricting oil to the head be a bad thing? is there any other way of keeping oil in the sump? maybe putting in an extra liter or 2?

steve

[Duncan]

my understand (and I don;t know much) is that the standard pumps put waaay too much oil in the head at high revs. Together with oil sloshing around in long high G corners you can end up with no oil at the pick up.

Result no oil being pumped = dead engine quick smart.

We do 4 changes to the stock enigne for racing 1 - restrictor in the line to the head, 2 - bigger sump, 3 - foam in the cam covers above the standard baffle to stop oil collecting there 4 - big oil cooler.

The car with those mods has lated 18 hard racing month no probs.

My dead standard one died first track day.

Its no guarantee but you should give yourself the best chance. On the other hand, I wouldnt (didn't) bother with all this until it went kaboom in the first place, removing and rebuilding an rb26 is an expensive process

[[[d a n n y]]]

as duncan said.

that's what it does.

my engine got fried cuz of that.

[KNG-32R]

mine went as well

and is in the final stages of being complete

how much is an average restricter

ive upgeaded all my parts

would i still have to do any of the above

[[[d a n n y]]]

best to do it.

for the well being of your engine if u plan to thrash it around and so on..

what's been done to your engine mate?

[Duncan]

yeah the only expensive part in that was the sump about $500, its worth doing it all while its out, I would hate to have to pull it out again soon.

The restrictor is just a 1.5mm copy of the 2mm one that is in there. Just get it made up by any machine shop.

We are also machining the crank while it is out so it engages the oil pump better. Have a look at the oil pump that came out and see if the flat part that engages the crank is worn at all.