rb20det or rb25det?

Discuss the RB20, RB25 and RB26 series engines.
NP240sx
Posts: 13
Joined: Mon Oct 16, 2006 4:19 am

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i still cant sleep thinking my turbo is from an rb20det so i just want to put more pictures of it and see if it is.....i been searching on google and its hard to find specs on these......all information about this turbo would be a good help for me thanks again!


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300Plus
Posts: 700
Joined: Sat Jul 09, 2005 8:11 pm
Car: 1995 S14 w/ Rb25det Series II

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Not an expert on rb20 turbos but the rb25 doesn't have a vacuum/boost line off the compressor side

SeVa-S13
Posts: 8478
Joined: Thu Jan 23, 2003 9:11 pm
Car: '05 GTO 6spd

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Ball-bearing RB20 turbo.

NP240sx
Posts: 13
Joined: Mon Oct 16, 2006 4:19 am

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can you guys show me how an rb25det turbo look like? thanks!

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rb20fb
Posts: 156
Joined: Fri Mar 25, 2005 6:13 pm
Car: 1990 Nissan 240SX SE

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rb25det and rb20det ball bearing are the same turbo. i have the same turbo on my 20 and i pulled it off of an rb25det

Joe
Posts: 6511
Joined: Sun Feb 09, 2003 8:29 pm
Location: Phoenix, AZ

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rb20fb wrote:rb25det and rb20det ball bearing are the same turbo. i have the same turbo on my 20 and i pulled it off of an rb25det
they are not the same turbo.

they share the same bolt/lines but the 25 turbo is bigger.

Nyloc
Posts: 19
Joined: Sat Feb 04, 2006 11:01 pm

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These from my swap 18 months ago, i knew i had them for a reason.

Here ya go, RB20 on the left:

http://webhost1.inspire.net.nz/~nyloc/D ... CF0032.jpg

and this ones big, but detailed:http://webhost1.inspire.net.nz/~nyloc/DSCF0025.jpg

The rb25 turbo has a slightly larger compressor cover, and samesize but diff a/r on the exhaust. the outlet elbow is bigger, and when bolted to the rb20 looks completely stock except for the fact the intercooler pipes now touch each other.


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