Jump to content
SAU Community

Recommended Posts

  • Replies 52
  • Created
  • Last Reply

Top Posters In This Topic

Rb30's need a few small modifications first eg needs oil lines tapped into the block for the turbo, I'm also not sure how strong the crank would be on an rb30 to handle 300rkw.

Machining costs mite be expensive as their is more work needed.

I'm current getting my Rb25det machined with arias forged pistons, rb26 rods and keeping the crank standard. Its costing me heaps, buy the time you but all parts and put it all back in, it becomes a motor reliable motor, and should have no probs handling the power out put your after, If tuned well. But if you have the money to put an rb30 bottom end in I would recommend it as their are good benefits. But to make the motor reliable and strong you would have to spend a lots more all round to make that happen.

Rb30's need a few small modifications first eg needs oil lines tapped into the block for the turbo, I'm also not sure how strong the crank would be on an rb30 to handle 300rkw.

Machining costs mite be expensive as their is more work needed.

That depends what RB30 block you get. SII block has all the provisions for the turbo.

Apart from that the only other modifications required depends on what cam belt you use.

Its a little off topic but just to compare how tough the RB rods are:

Here's a little snip from a bloke i'm exchanging pvt messages with.

He's got a RB26 with a GT40 thats almost done.

My brothers is running 300rwkw at the moment and is only using stock rods, and I'm pretty sure it would be able to handle 350rwkw, just excessive revs may decrease their life span dramatically.

Hopefully we will be aiming for near 400 so we will be able to work out what is going to go first in a standard (although brand new and balanced) bottom end.

Generally most workshops will start upgrading the rods once they near 400rwkw. Although PSI03L has been running shotpeened standards for a while (nearly 2 years) and that has been running in excess of 500rwhp.

Hopefully my rods handle 300rwkw maybe just a little more with no problems. :(

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • The fancy pants red shock tower brace is finally incoming from MX5 Mania, getting it shipped from 'Merica has been a long and problematic process, and GWR, the 'Merican supplier will not ship directly to consumers outside of the US, Mania basically had to order a heap of them, the colour choice was silver, or red, and we all know anything red adds 5 killerwasps of dynotorques..... Whilst it does fit over a 2.5, and I've seen a few photos and videos of it being installed and fitting, google also says it might get real close to the FAB9 intake front runner, people in the US says it does fit with the FAB9 intake, except for one person who said it slightly touched.......so there is that.....LOL..... As it seems that I am the first in AU to have this combination of parts there's no local knowledge about fitment, so I'm just a willing guinea pig in this endeavour, I'll cross my fingers and toes and hope for the best In other news, I ordered stuff from China  on the same day I ordered the 23° silicone bend from Victoria, the stuff from China arrived a day ago, the 23° silicone bend is still travelling around Australia thanks to Australia Post, and "may" be here next week
    • Very good news...I contacted Racebox about it last night. My car is a 2016 so remains to be seen if it is compatible, requires a TCU swap, or is impossible.
    • What ECU are you running? This is probably the biggest question. If it's a PowerFC, I'd probably change the ECU and get something newer that will handle the injectors in a nicer way.
    • FYI: Racebox RE7R Custom Tunes Released!   https://goracebox.com/.../2017-infiniti-q50-q60-re7r-tcm...   FOR GEN 2 (21+) VEHICLES, PLEASE SEE NOTE AT BOTTOM See more   But whomever tuned your car is the tuner you should go back to, AMS, Sonictune or BT Tune....
×
×
  • Create New...