Jump to content
SAU Community

Recommended Posts

Hi, I bought an r32 gtst almost a year back and ive been fixing all the little bits and pieces to get it to the stage of a road worthy. The guy i bought it off said its got an rb25det, The motor is N/A at the moment but im not sure if its de or det. The head is stamped 75T and so is the block. Any way of telling if it was originally turbo'd. New to the skylines and tryna learn. Thanks

sorry if this is in the wrong place.

 

Link to comment
https://www.sau.com.au/forums/topic/480000-not-sure-if-my-rb25-is-a-det-or-de/
Share on other sites

Well, what it originally left the factory with is stamped on the chassis plate on the firewall. R32 GTST came with rb20det not rb25det, although some late r32 gts came with rb25de no t.

But I guess you are asking if you have an rb25det motor with a turbo removed, or an rb25de. One way to tell should be a compression test as the rb25det will have lower compression, not sure other certain ways because it seems some rb25de blocks had plugged ports for the oil feed and oil return instead of nothing at all (although, no oil ports would confirm rb25de)

Quick search on here suggests 75T was the casting number for both rb25de and rb25det from R33 gtst, so that doesn't help.

This is your best bet i can think of...That red circle is your turbo oil drain.  if in that area on your block is a blank/does not exists then it is 100% a de block. If this spot on your block has any kind plug of bolt or block off that goes into a hole, then its a turbo block that plugged up. 

3227ADFC-0022-49BB-934E-649BF44F3367.jpeg

On 3/22/2020 at 1:38 PM, Dil-Dog said:

If this spot on your block has any kind plug of bolt or block off that goes into a hole, then its a turbo block that plugged up. 

Na sorry mate, have a de block here drilled and tapped for turbo oil return with a plug in it, so thats not necessarily true.

15 hours ago, Dil-Dog said:

Damn bro..... i only have experience with neo’s. That must be a series 1/2 specific thing then. My 25de neo and my friends 25de neo is a blank in that location. good looking out though. @Rusty Nuts

It is weird they bothered drilling and tapping then plugging it, but that's what they did.

What's even stranger is they did the same on rb30 blocks. Good on them for helping us out though !

  • Like 1
On 3/25/2020 at 3:14 PM, Ben C34 said:

It is weird they bothered drilling and tapping then plugging it, but that's what they did.

The blocks would have been all turbo spec on the production line, then some bean counter said "hey we can save some yen" and got a bonus.

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

    • Thanks for doing that Duncan! Makes you a good person in my books. We don't get kangaroos or wombats here. But we have bats and it's similar. AFAIK it's often the mums with a baby attached that get hit because they drop lower when starting from a tree. If you hit an animal, check on it. https://www.ifaw.org/au/resources/wildlife-rescue-app An app to get the closest wildlife rescue contact.
    • My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
    • BTW I measured the jack I have, it is 70mm at the saddle but you only have about 700 until it returns to 150mm high at the cylinder so it is good but no magic bullet.
×
×
  • Create New...