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  #1  
Unread 20-01-2004, 08:51 PM
sr240det
 
Posts: n/a
rb20det doesnt like high rpms?

sup!!! im mark from florida.. just registered to learn more about whats going on under the hood of my dream car that i will never get to own... .. but anyways... the only option is to get power plant... and put it in my 240sx.. iv decided to go for the rb20det... but after searching and searching.. i found out alot of you hate and love the rb20det.. (dont worry.. im just saying whats sup not to ask annoying questions...) a dealer tells me the rb20det hates to rev in the high revs... can anybody help fill me in about this? anyways.. im glad to join this forum.. iv learned alot already... later on yall...
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  #2  
Unread 21-01-2004, 05:41 AM
gtsr gtsr is offline
Forum Member
 
Join Date: Nov 2002
Location: Skyline city
Posts: 9,310
As far as I know the factory revlimiter is around 7500rpm
and I have read when chipped they can reach as high as
8500rpm?.

Redline starts at 7000rpm solid at 7500rpm to 9000rpm max.

From what I have read the RB25, RB26, RB30 are better off-
boost than the RB20.

Hope that helps.

Last edited by gtsr : 21-01-2004 at 06:47 AM.
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  #3  
Unread 22-01-2004, 01:36 PM
CYA34
 
Posts: n/a
The RB20DET is a fun free reving engine but it doesn't produce power unti aroundl 4000 RPM the RB25 has the ball bearing turbo much nicer across the revrange I think.
Oh and if you'd like some info on the RB series engine check out this site,

http://www.rbforums.com/news.php

Cheers
Chris
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  #4  
Unread 22-01-2004, 01:42 PM
Morgs
 
Posts: n/a
RB20 loves to rev.
Its got nothing down low at all - but standard ceramic turbocharger makes boost very early (2500rpm odd from memory).
Mine revved through to 8000rpm without a problem - once it starts revving it just wants to keep going
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  #5  
Unread 23-01-2004, 08:20 PM
sr240det
 
Posts: n/a
wow, you guys told me what i wanted to hear... thanks for replying... iv decided to get the silver top rb20det for my 240.... btw... my car is gonna see alot of track days... hardly any... if not then no drag racing... thanks again... later on..
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  #6  
Unread 24-01-2004, 03:14 PM
gtst4
 
Posts: n/a
Yes, it has to be the silver-top (ECCS). The red-top (NICS) has variable inlet runners, controlled by a butterfly at the inlet port. Often these butterflies jam open, and the car then drives like a dog.

I've had my RB20DET (relatively stock) bouncing off the rev limiter (8k) in 1st and 2nd (wet road, no traction)
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