Rb25 MPG

Discuss the RB20, RB25 and RB26 series engines.
hustler112
Posts: 3
Joined: Wed Aug 22, 2007 8:05 pm
Car: 1992 240SX RB25DET

Post

whats the stock rb25's gas mileage? anyone know?


AxiOn419
Posts: 263
Joined: Mon Sep 12, 2005 5:52 pm
Car: 1991 240sx SE Super-Hicas w/ RB20DET
Contact:

Post

Sorry, can not answer for the rb25 specifically as I do not have one but my rb20 was getting 23mpg on average. From what I have heard it all depends on how well it is tuned. I have heard anywhere from 17-29mpg, depending on who you ask. As a rough estimate, I would say you should typically get ~21-25mpg on average, but do not hold me to that.

Tripz
Posts: 155
Joined: Wed Aug 23, 2006 6:46 pm
Car: S13 RB25DET

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I was getting 22mpg

Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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I can get about 25 mpg on my RB25 if I stay out of boost. I tuned it to have a fairly lean cruising A/F ratio though (14.5).

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meet07
Posts: 1189
Joined: Tue May 08, 2007 5:48 am
Car: 89 180sx rb25det
Location: North Carolina
Contact:

Post

thats smart darius. I did the same on my turbo integra.

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Bwana
Posts: 6188
Joined: Thu Sep 16, 2004 9:38 am
Car: Denali
Location: Escondido, CA

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I'm getting about 24 around town on the stock ecu and injectors driving fairly easy.

ralphie!
Posts: 8
Joined: Sun Jun 24, 2007 11:42 am
Car: 89`coupe with redtop sr and lots of goodies and a 92`hatch with rb25 and even more goodies

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im getting 32 stock everything highway last time i went on a trip. I cruised about 90 stay completely out of boost cruised between -10 to -15 the whole way. But im told im running way to lean on my timing. But my dyno runs show me as good hehe.

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

Post

i would say if you're getting 32mpg its proly pretty lean...


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