What's The Difference

[yogibear]

ok i em looking for a rb25 i found one cheap but its non turbo i plan on doing a rebuild so does that really matter?

are the rb25de and the rb25det the same block?

can ppl plz name whats the main differences.

thanks

[yogibear]

no replys????

[RANDY]

I'll give you a fairly un-educated answer to tie you over till the pro's arrive. ;o)

My guess is: probably not.

[funkymonkey]

the blocks are identical as far as I know... well... identical as long as you're comparing an R33 GTS RB25DE to an R33 GTS25t RB25DET. R32 RB25DE, and stagea RB25DET (AWD) might be slightly different.

[QWK32]

the compression ratio of the rb25de is higher than the rb25det.

and which rb25de are you talking about, 32 33 or 34?

32 and 34 rb25de have different cam specs to the 33 rb25de. both the 33 rb25det and rb25de share the same cam specs though.

Edited October 9, 2007 by QWK32

[R34GTFOUR]

yep they are the same, even the heads a physically identical. The only difference is cams, valve springs, and pistons really.

All rb25de i have seen have oil and water provisions already tapped out with a bolt plugging them which are ready for the turbo to be bolted on. The only turbo line that isnt on the n/a block is the turbo oil return which is easy to drill out and tap anyway.

If you are rebuilding the engine and you can get a n/a very cheap it will be fine

[teazn_r33]

if your using just the block it should be fine but you will need to drill oil squiters in if you get it cheap enough it will be worth it

but a n/a doesnt have oil squirters

[R34GTFOUR]

if your using just the block it should be fine but you will need to drill oil squiters in if you get it cheap enough it will be worth it

but a n/a doesnt have oil squirters

if he runs forged pistons in the rebuild it will be fine without oil squirters

[teazn_r33]

i would not recommend it

[yogibear]

how hard are oil squirts to put in?

and ur talking about the oil squirters below the pistons?

[SECURITY]

yep, those ones.

oil squirters are a bitch to do custom. you have to find the oil galley then tap into it, then drill and tap the hole for the nut to go into, as well as the little circle thing for the squirter arm to fit into.

just get a bare turbo block for 250-ish.

or even go rb30

[R31Nismoid]

DE & DET blocks are different in terms of oil lines and all that and a few other minor things

[yogibear]

u find me a a bare block cheap and i will buy it .

[Craved]

I've got a bare rb25det block - make me an offer

[SECURITY]

there you go. found you one