What horsepower to expect rb20

Discuss the RB20, RB25 and RB26 series engines.
reuhzaki
Posts: 107
Joined: Sat Mar 03, 2012 8:14 am
Car: 1991 240sx s13

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I'm wanting to know what I can expect when I have my rb20 running in my s13. I have 3" down pipe and exhaust. Lightweight pulleys. Ac deleted. Front mount same side intercooler. Only have driver racing seat. No passenger seat or rear seats. Wandering what hp I should have and what it will run in 1/4 mile. When I get some cash. I'm getting 440 injectors, rb25 turbo, nistune, lightweight driveshaft. And Wolbro 255 fuel pump. What can I expect after upgrades too please. Thank you for the input guys


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

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what series rb20?
boost pressure?

reuhzaki
Posts: 107
Joined: Sat Mar 03, 2012 8:14 am
Car: 1991 240sx s13

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Rb20 silver top from 1992 gts-t. Stock boost. I'm guessing 10 psi

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

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170-180 wheel on a good day.

maybe 230 tuned...maybe.

reuhzaki
Posts: 107
Joined: Sat Mar 03, 2012 8:14 am
Car: 1991 240sx s13

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Isn't it supposed to be 215 stock?

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asoomal
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Joined: Tue Feb 26, 2008 4:45 pm
Car: 2001 Subaru Impreza L 5MT (Daily)
1992 Nissan 240SX SE 5MT w/HICAS (Being restored)
Location: Canada

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At the crank, not the wheels.

reuhzaki
Posts: 107
Joined: Sat Mar 03, 2012 8:14 am
Car: 1991 240sx s13

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So what would the 1/4 mile be? Like 15?

reuhzaki
Posts: 107
Joined: Sat Mar 03, 2012 8:14 am
Car: 1991 240sx s13

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And what can I look forward to after the upgrades I listed?

chad b.
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Location: Mobile, AL

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1,000

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

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see my previous post.

25 turbo isnt much of an upgrade.

reuhzaki
Posts: 107
Joined: Sat Mar 03, 2012 8:14 am
Car: 1991 240sx s13

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I didn't think it was much of an upgrade. Just what people keep telling me to use. Which will be a good turbo upgrade?

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driftersilvia240sx
Posts: 79
Joined: Mon Oct 29, 2007 6:16 pm
Car: 350z (business car)
240sx (rb25)
civic eg (winter beater)

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hx35 and b happy


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