Jump to content
SAU Community

Tomei Osgiken Rb30

tribex

By tribex,
in Engines & Forced Induction

 Share

Recommended Posts

tribex Enthusiast

tribex

Posted
Posted (edited)

does anyone know of these engines they are supposed to be a collaboration between tomei and os giken ???

i have seen a few advertised and am wandering about wether they are genuine or not?? does anyone know the sort of performance they give ???

twin t78s seems like overkill but i am after an rb30 conversion and maybe this is a better solution.....

post-9341-1213254522_thumb.jpg

post-9341-1213254663_thumb.jpg

post-9341-1213254684_thumb.jpg

post-9341-1213254693_thumb.jpg

post-9341-1213254704_thumb.jpg

post-9341-1213254711_thumb.jpg

post-9341-1213254718_thumb.jpg

Edited by tribex
Link to comment
https://www.sau.com.au/forums/topic/223558-tomei-osgiken-rb30/
Share on other sites
Mr. Keets Grand Master

Mr. Keets

Posted
Posted

I haven't heard of such a collaboration but that doesn't mean it didn't happen. It looks like someone has just spec'd Tomei parts to fill out the OSG kit....it will be wayyyyyy expensive in comparison to an Aussie built 3L and even a R.I.P.S RB30 from NZ

tribex Enthusiast

tribex

Posted
  • Author
Posted
  nizmonut said:
just read a 400 post thread on another forum about these engines........verdict...no one really had expierence with these and a big power rb30det to compare.

mind if i ask where this was can you post a link??

twin t78's anyone know when boost will come in if at all lol??? maybe 15000 rpm lol joke.....

tribex Enthusiast

tribex

Posted
  • Author
Posted
  URAS said:
It is a OSGIKEN short fitted with tomei filled head, not an of the shelf build. It would have been a cheque book motor tick all the best available options for its intended purpose.

anyone know where this 400 page thread about them is????

twin t78s on rb30 will they even be able to spool up????

9krpm Mentor

9krpm

Posted
Posted (edited)

Definitely the twin greddy t78 will not be very functional at the 9krpm redline they suggested.

I've driven similar setup. The Twin T618Zs hit full boost at 4.5-5krpm. Single T04Z hits full boost around 5.5-6krpm.Twin TD06s hit full boost at around 6-6.5krpm.

I am not sure when Willall's drag car hit full boost with their T67s. If I have to bet, the T78 must be getting full boost in the 8krpm....way too laggy.

BTW what cams are they using on this setup and what is the asking price?

Edited by 9krpm
unique1 Mentor

unique1

Posted
Posted (edited)
  9krpm said:
Definitely the twin greddy t78 will not be very functional at the 9krpm redline they suggested.

I've driven similar setup. The Twin T618Zs hit full boost at 4.5-5krpm. Single T04Z hits full boost around 5.5-6krpm.Twin TD06s hit full boost at around 6-6.5krpm.

I am not sure when Willall's drag car hit full boost with their T67s. If I have to bet, the T78 must be getting full boost in the 8krpm....way too laggy.

BTW what cams are they using on this setup and what is the asking price?

single to4z on a rb30 hitting full boost at 5.5-6k rpm? thats not what ive read and experienced, on my own rb27 with the hks t04z, its making fullboost around 4300-4500rpm or so (that was on 22psi boost).

Edited by unique1
9krpm Mentor

9krpm

Posted
Posted (edited)
  unique1 said:
single to4z on a rb30 hitting full boost at 5.5-6k rpm? thats not what ive read and experienced, on my own rb27 with the hks t04z, its making fullboost around 4300-4500rpm or so (that was on 22psi boost).

hmm I better double check with John what turbo it is. I knew I should have not mention this turbo coz I wasn't too clear. It might have been bigger. Full boost was in the high 20 and he had a Nismo cluster. All of the others that I mentioned were around 2 bars. What cams and intercooler have you got on your car?

Edited by 9krpm
tribex Enthusiast

tribex

Posted
  • Author
Posted
  9krpm said:
Definitely the twin greddy t78 will not be very functional at the 9krpm redline they suggested.

I've driven similar setup. The Twin T618Zs hit full boost at 4.5-5krpm. Single T04Z hits full boost around 5.5-6krpm.Twin TD06s hit full boost at around 6-6.5krpm.

I am not sure when Willall's drag car hit full boost with their T67s. If I have to bet, the T78 must be getting full boost in the 8krpm....way too laggy.

BTW what cams are they using on this setup and what is the asking price?

are you talking about on rb26's or rb30s i think to4z would spool a lot quiker than 5.5-6k on rb 30 ive seen them boost on rb26's earlier than that...im not arguing witht he t78s though im not sure they will come on boost at any reasonable level,

would love to know what level willals drag rb30 gets boost witrh those t67's......

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • DRoc81
      Shifting questions

      By DRoc81 · Posted

      This was a huge help.  We followed the steps,  although shifting into 2nd was actually into 3rd for us,  and 1st was into 2nd ( steps 9 and 11) .  The long flash was the 4th flash.  So shift solenoid A is possibly the culprit.  Is this inside the transmission itself? Or is it accessible by just front the pan? Or is it bolted to the outside of the transmission?  Thanos for your help everyone
    • sunsetR33
      ugently need expert / experienced opinion

      By sunsetR33 · Posted

      Can you enlighten me on your best practice regarding these hoses? I don't wanna make the same mistake if you already got a better solution.
    • sunsetR33
      ugently need expert / experienced opinion

      By sunsetR33 · Posted

      I have some silicon hoses already, for example engine to watercooler. But yeah, I get the sentiment. The lower intercooler silicon hose is drippy too, despite not being very old. Does anyone except Nismo make these same lines out of rubber? Long term I think they'd be the better replacement, especially since the car won't live as hard a life anymore as in the past nor be driven as often.
    • sunsetR33
      ugently need expert / experienced opinion

      By sunsetR33 · Posted

      I know most issues are just age related. But for example the turbo oil drains, there is dash adapters for these and you can just make a braided teflon line for them and (probably) never have them leak again. Also not terribly expensive. Can you even get the factory hardlines from new? Or are they repairable if they break?
    • sunsetR33
      ugently need expert / experienced opinion

      By sunsetR33 · Posted

      I know it'd be much much easier with the tool. I hope I can find one that won't take 3 weeks to get to me an isn't a "Asian models kit" that has tons of (to me) useless adapters for a load of cash.   It's a summer project/fun car. I do wanna enjoy it, without endless downtime over and over. So yeah I would even go and buy an engine crane + stand to save myself the trouble of hard to reach or unreachable places going bad later on. Would also be a good opportunity to put on a Fluidamper, renew the mains seals and stuff like that. I have some money on the side that I can use for that, what I wouldn't want to or be able to do is let everything be done by a shop or have my engine completely rebuild right now. I intend to do most of the "doable" jobs myself. Pulling an engine can't be that hard, can it?
×
×
  • Create New...