Bmxer300zx

Rb25/26 heads are interchangable why people do rb30 blocks with the heads. The rb20 heads don't fit onto a rb30/26/25 block. The first rb30 Det used a rb20 head but it took major modification to mate the head to the block. Its a Na rb25 outa the later year R32 made to turbo just look at youtube and type in rb20de+t or rb25de+t it's a very common thing in Australia and japan.
Unless that post on the gtr forum is true about first year rb25 r33 having no vtc/nvcs then you have a rare motor lol

PW180SX

So much info, thanks for all the input guys! I still haven't had a chance to look into it and get some numbers off of it until I get off work, so within an hour or so I'll update with the markings on the head, turbo, etc.

Let's see what this thing really is. But from what you guys are telling me, I'm convinced it's a RB25DE with a turbo slapped on, or an early model without the VTC.

Thanks again to everyone who put some input on this situation!

jr_ss

I bet it's a pre 93' NON-NVCS factory RB25DET motor...

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My SR20VET

PW180SX

Head marking: 08U
Turbo marking: 16V

So, RB25DE with an RB20 turbo? Lame sauce..

Bmxer300zx

What it probably really is is someone with a r32 rb20det just upgraded motors when theres blew up lol I actually will be doing the same when mine pops. Funny though I never knew the r32 rb25de was combatible with the rb20 FFIM hmm... good to know? Lol
Anyway I found this idk if you can figure anything out woth markings on your block
RB25 Engine Number Register

Bmxer300zx

Ehh just looked the block markings you have up don't really match anything they already have unless there's other markings.
Idk if you have a 16v turbo thats one more thing to call out Tigerjdm on tell them all rb25 turbos have nvcs/vtc, a lump on rocker cover, and a 45v turbo also tell them your rb25det intake manifold doesn't fit because the Na's have a different intake runner pattern

jr_ss

That is lame sauce. What is your plan on action?

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My SR20VET

S12 Drifter

could it actually be a RB20 with the block marking erased and marked as a RB25? it's a possibility.

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Bmxer300zx

Only one way to find out...... crack that bitch open and do some measuring!

EvilRB

Damn man sounds like you got screwed... but you know the saying when life gives you lemons...

If I were you and can't get your money back or another engine I'd look into alternatives with this, from reading up on these I think I saw a really badd ass old school version useing this exact motor that used a ITB setup with custom twin turbo that just sounded amazing!
I'm going to have to find that video but there was somethign different about this engine compared to regular RB25's that made this a good canidate for this so you might have a gem on your hands and a chance to do something different.
What car you putting this into?
also hit up the guys on Skylines AU. they problably have more experience with this version of engine.

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S12 Drifter

put it on a stand crack the oil pan open and get a caliper and measure the bottom of the cylinder i guess?

seriously you might not have to? seek legal advice.

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PW180SX

Yeah I looked up the other markings and can't find much, but I'm pretty much sold on it being an RB25DE. Everything else makes sense, I just need to look into it a little further.

At the moment, still trying with this dispute via Paypal. They're raised it to a claim so I can't input any more information (cause they don't want me too), so just waiting until it's my turn then I'll submit every bit of information I have on this.

If Paypal decides to side with TigerJapanese, well, I'll stick with the DE. It sucks considering it's not what I paid for, but could eventually be an interesting build.

Could be, but the markings on the block look too OEM to be messed with.

Yeah I've looked into these motors a LOT since I've received one haha. I'll probably do something interesting with it, it could be a fun build but would be much better if I could get what I paid for

It's going into my S13:



Yeah, if luck isn't on my side on this one I'll crack it open and do some measurements to get the exact bore on this thing.

Again I appreciate everyone's input, I'll update this with the outcome of the claim.

But so far, lets just say this:

Tiger Japanese can go to HELL. If they want to play dirty and screw me, the customer who sent them 2100$ over...they'll be seeing quite a few reviews with their name plastered all over the internet. May not change a thing, but I know I'll feel better about letting the world know of my experiences with these douche bags.

EvilRB

Nice! Good luck man!

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davidpham

Wow at first I thought this thread was about swapping rb20 head into rb25 so i click on it, then as i read and read it got interesting. sucks that you didnt get what you paid for. Goodluck! I hope things turns out well. I wanna know what happen at the end

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S12 Drifter

if worse comes to worse you can order a RB30 and you have a cylinder head for it.

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lgsr20swap

So how did u make out. I too thought this was about rb20 on rb25

Sent from my SCH-I605 using Tapatalk

PW180SX

Well, turns out it definitely is an early model R32 RB25DE with an RB20 turbo setup slapped onto it.

I went ahead and did the full swap, ran an RB20 harness and ECU. It's interesting to say the least but it's not what I wanted so it's being parted out actually lol. But here's a few photo's. Don't mind the crossover intake - I would have gone with the traditional Greddy manifold but unfortunately the intake manifold flange is different so I had to make due :/




Sorry no good pictures of it lol.

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Build Thread: http://zilvia.net/f/showthread.php?t=580492
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supersayianjim

so did this run?? and if so how well??

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http://www.240sxforums.com/forums/rb...ject-s-rb.html

di-devol

Did they make good with you on the sale? Or did you just not say anything and keep it?

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PW180SX

Yeah it ran, but not very well. But it didn't help that the fuel rail was clogged with dirt and the turbo was blown from the get-go.. :/

Nope, they screwed me over. Paypal sided with them so I got no chance for a refund. I attempted to contact them and send pics etc of their mistake and they just said that I was just trying to get out of the sale because I "didn't want it" anymore.

Really? I would of gladly exchanged the motor for the correct one I purchased but they just thought I was bullshitting them. So in the end I got screwed, so with that being said - I will NEVER deal with Tiger Japanese ever again.

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di-devol

How the hell did paypal side with them? LOL!

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No 240.. No id

If you trying to get a motor swap, then go to jdmhookup in st. Louis, very cool guy, that actually go to japan and pick the motors him self. A lot of people know him here on this forum.

He don't bring modified motors. Everything he get is completely stock, and he don't pressure wash them.

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You can sleep in your car, but you can't drive your house.

PW180SX

Who the hell knows! I even provided pictures of the motor, pictures of what was shown on the page I purchased from, etc. They still sided with them...what a joke.

Sounds good, thanks for the heads up!

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Yellow4g63

American express it with paypal next time. If paypal tells you to kick rocks American Express will fix it for you and tell pay pal to F$ck off.

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95 240sx RB20 415whp
91 Nx2000 VVL yo