RB25 turbo onto rb20det

[joh21m]

I know this has been covered before but i searched and searched but couldnt find the info i needed.

Basically my question is this...

What is needed to bolt the rb25 turbo onto the rb20det? Does anything need to be changed or is it simply a bolt off - bolt on...what about gaskets? is it fine to use the old ones? oil lines? water lines? Anything that anyone can think of that needs to be changed please state what it is...

also i have an rb20det in my s13...will it still all line up (dump pipe etc...)?

Any answers appreciated except "Do a search".

Thanks in advance,

Joh

[R31 POWER]

If it is a R32(silver top) Rb20det then it will bolt straight up like a Rb20det turbo.It's best to get the RB25 elbow(intercooler bend)that comes off the comp housing as it's got a bigger internal hole.Also put the Rb20det acuator on the RB25 turbs for more boost.RB20/25 dumps are the same.

You can still use the RB20det elbow on the RB25 turbo but you need to drill out the 3 blot holes.Also you can use the RB25 acuator but it holds lower boost,like 7psi or something.

[Cillham]

how accessable would a rb25 elbow be, ive been given the impression they are hard to find?

[nedb]

check this link out.

if you did a search you whould've found it.

http://www.skylinesaustralia.com/forums/sh...5+turbo+upgrade

[joh21m]

i did search but its hard to write an exact search line to bring up the correct threads

thnks for the link...

[smok74]

Try getting the Ball bearing version of the RB25det turbo from the series II R33 as Nissan upgraded to BB turboes in both series II's of the R33 and the S14.

[joh21m]

cool thanks for the info...