Jump to content
SAU Community

Rb30 Identification

scr33min'

By scr33min',
in General Maintenance

 Share

Recommended Posts

scr33min' Contributor

scr33min'

Posted
Posted

Ok, sorry for such a n00b basic question, but I couldnt figure this for the life of me.

Is there a way to identify an RB30 block without actually removing the engine from the car?

Mate just bought an R32 and has suspicions that theres an RB30 block under the 25 head.

Is there a code or something that we can look for?

Ive had a look around and all Ive found is 75T written on the passenger side.

Any help is much appreciated guys :thumbsup:

Link to comment
https://www.sau.com.au/forums/topic/379801-rb30-identification/
Share on other sites
Zorro Community Regular

Zorro

Posted
Posted

Is the car NA? The RB25 head in a 32 with a turbo is a sign of things being a bit "special"! There are lots of clues if you know what to look for, but mad082 is right, look at the engine number, it will start with RB30#####.

JonnoHR31 Grand Master

JonnoHR31

Posted
Posted

on the passenger side of the block right at the bottom where one of the gearbox bolts goes into theres a small machined surface, clean it off and it'll have rb30 stamped on it if is one.

other giveaways would be a gap between the top and bottom timing cover, grinder marks around the bottom of the exhaust manifold near the block and clearance issues.

scr33min' Contributor

scr33min'

Posted
  • Author
Posted

Ok cheers guys Ill get him to take a look near the gearbox. :cheers:

I did notice a small machined surface close the the gearbox, but it was covered in dirt and crap so thats probably why we didnt notice anything.

It is turbo with greddy intake to solve bonnet clearance which is why we thing the rb30 is in it, and has the heatshield over the exhaust manifold so we cant see anything unless we take it off.

The guy he bought it off had no idea about cars, so was only going off what the previous owner had told him. Apparently there was an rb30 in it, or maybe still is. When he bought it it had a fairly beefy fuel system, custom exhaust and intercooler piping. and thats a bit extreme for a "stock rb25" as the guy thought it was. Seems a bit odd that the previous owner would take the rb30 out, put a 25 in, and fabricate custom piping for it?

Unless he blew it up or something :(

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

    • GTSBoy
      NC MX5

      By GTSBoy · Posted

      You know, that is exactly the thing that I was thinking a coupe of hours ago. I even had a plan for a meme, involving one big one, another big one, and the Old El Paso girl saying "¿por que no los dos?"
    • Milkmun
      NC MX5

      By Milkmun · Posted

      NoS, 2 of the big ones.
    • GTSBoy
      Lets play a game - What is causing my oil consumption?

      By GTSBoy · Posted

      Oh, that's grim. Something bad has been happening there.
    • tsuokun
      Lets play a game - What is causing my oil consumption?

      By tsuokun · Posted

      Put an endoscope down the hole and saw this. Not quite all around the bore but a good 60% at least. Chin to the chest and towards further disappointments I guess.
    • The Bogan
      NC MX5

      By The Bogan · Posted

      2 does "sort of" applies, maybe......but looking at what parts would be needed for the swap to get engineered, registered, and insured, and basically that's everything under the car, the modifications the make it legal would be problematic and horrendously expensive, all for a street car that just cruises around and hits a few twisty roads on the weekends Also, from looking at the NSW rules and Regs, with all modifications that is required just to make the car safe and not twist itself to pieces, and then actually get registered for street use, may still be impossible nowadays As for 1, when you add in a fresh engine, fresh transmission, rear cradle and diff, tailshaft, suspension, brakes, cooling, and all the other fabrication required, your probably looking at up to $100k to do it right, all for a 20 year old MX5 that is over engineered and you would never be able to actually use the power it has on the street, much like your beastie, which I love, but you actually track that thing and can use all of its powers in anger, in a safe environment  Hell, the old Bogan Cruise Ship had more power than I could use on the street, and in hindsight, I went a bit silly on that thing, it didn't really need the 500hp it had for what I actually used the car for, it was fun, but basically unusable on the street if you value your licence  As for cams, yeah, I'll probably book it in for them to get installed and tuned soonish, like next month after MX5 Mania are back at work....... and yes, I've already sent a email to bin the turbo quote and quote instead to install cams and a new Fluidampr balancer that will suit the 2.5 better than the OEM 2.0 balancer that is swapped over for the 2.5 install, as the balancer needs to get pulled to time the cams it's a while your in there sort of thing I did think a bit about flex fuel for a laugh, but being na, and no where really around locally anymore to get E85, I've binned that idea, so no sweet sweet corn smells are set for the car I wish E85 was more of a standard fuel, it's better for the environment, better for tuning, plus that sweet sweet smell we all love As for fitting in the family, that's not needed, as everyone in the family already owns a car that can seat 5 humans comfortably enough, the MX5 is "my toy" As for buying a car that is already built, nah, I would rather pick and choose my parts, I enjoy the process, and in the big picture, the additional cost is well worth the enjoyment, and the occasional frustration, I get out of doing it, albeit with other people spinning the spanners, and me, just paying the invoice 🤣
×
×
  • Create New...