advise on taking my RB20det out for RB25det

Discuss the RB20, RB25 and RB26 series engines.
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jrock7885
Posts: 27
Joined: Tue Mar 18, 2008 10:40 am
Car: 1989 Nissan 240sx RB20DET

Post

Hi guys and gals,

I currently have an rb20det in my s13 and i have purchased parts that are in the closet ie t3/t4, luv fab mani, nismo f/p regulator, greddy profec b boost controller, tial 38mm wastegate tahts all for now because i am cosidering ordering an rb25 and dont want to waste money on more parts for rb20. So what do you guys think I should do in my situation?


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RustspecS13
Posts: 928
Joined: Sat Sep 08, 2007 5:30 pm
Car: '74 260z and '88 300zx turbo

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Get a Z32 ecu and have carl h repin and tune it.

Plan on a new drive shaft too, as you'll need a custom one for the bigger/stronger rb25 transmission.

~Alex

User avatar
lyon23
Posts: 379
Joined: Wed Apr 14, 2004 4:16 pm
Car: 95 240sx
Location: Florida

Post

I say order the 25 and slap all those parts on. You can get a rb25 with no transmission and cut harness for $1200 or so. Just re-pin or rewire the rb20 harness no it.


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