Hello, I have rebuild my engine. Forged internal, (rod, piston) with partial head work camshaft is JUN 272/272 lift 10.5mm, Supertech valve spring and valve guide. port and polish, stock valve (may be upgrade in future). For oil pump I used N1 pump with Spool gear. Increased Oil pan capacity (to around 7-8L)

So, what is the max safe RPM? Or do you have any advise? My goal is 9,000rpm and HP is around 800-900whp.

9k is pushing it with that factory oil pump and drive. I would keep it at 8500 max. Convert to a spline drive oil pump setup if you want to bring the revs that high and not worry about killing the motor.

Yellow4g63 wrote: ↑

Tue Jan 02, 2018 8:16 pm

9k is pushing it with that factory oil pump and drive. I would keep it at 8500 max. Convert to a spline drive oil pump setup if you want to bring the revs that high and not worry about killing the motor.

Is that all I need to do? Thank friend. What if I want to go higher in the future, maybe around 10,000rpm what should I prepare and do next?

And another thing. I forget to mention that I did increased surface that crank collar touch the gear and also upgraded gear is made from chrome-molly. is it enough or spline is still better to do. I'm pretty new to RB engine.



Thanks

https://www.spoolimports.com/rb-spline- ... 1-oil-pump Spline would be the best for reliability but since you already collared the crank you should be good. A member on here a long time ago did the N1 oil pump on his GTR and it blew the bottom end to bits over 9k rpm. If you plan to rev higher Nitto oil pump or a dry sump setup.

Yellow4g63 wrote: ↑

Wed Jan 03, 2018 7:41 pm

https://www.spoolimports.com/rb-spline- ... 1-oil-pump Spline would be the best for reliability but since you already collared the crank you should be good. A member on here a long time ago did the N, It may be I should consi1 oil pump on his GTR and it blew the bottom end to bits over 9k rpm. If you plan to rev higher Nitto oil pump or a dry sump setup.

Thanks, then I think maybe Nitto pump or consider about saving up for while and get drysump.