Oil Pump Options

[PSI086]

Not sure if this is the right section to post this but I'm after a few options for replacing the oil pump on my RB30ET with. The motor will be making around 370 - 380rwkw. I'm fitting a crank collar as the drive on the crank is damaged anyway so after talking to a few people I've had a few suggestions for pumps which are in my price range (Tomei, etc are all out of the question). Pretty much I've got the factory VLT pump, series 2 RB25 and GTR N1 pumps as options. I'll fit the VLT relief spring to the RB25/26 pumps as the oil pressure ends up too high otherwise. Which would be the best way to go? I've heard so many conflicting stories about the N1 pump but its probably the cheapest one of the lot as I've found new ones for $399 delivered. JPC told me they have run VLT pumps with no dramas and seen a lot of failures with the N1 pump until the relief spring is changed

[N1GTR]

Budget: Stock, or N1

No budget: JUN, Tomei, HKS or dry/semi sump setup

Remember that you'll have to look at the sump aswel, its not just the pump thats the weak link

[PSI086]

N1 is sounding like the best option. It should be a lot better than a stock VLT one as its got the wider drive surface and matched with the crank collar it should be very reliable. Its only really the small crank drive surface and huge revs and lots of limiter that kill them isn't it? The limiter will be set between 7500 and 8000rpm so it won't be spinning as hard as a lot of GTR's

I've got a JPC trapdoor sump to fit so that part is all sorted.

Edited November 12, 2008 by PSI086

[N1GTR]

Hitting the limiter time and time again is a big no no