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#1
04-18-2005, 01:48 PM
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rb25 tranny specs
What up peeps! New to the forum, so first I want to say WUUUUUUZZZ UUPPPPP! Anyway though, I'm putting together a power point presentation and I have had a hard time locating the information that I need. I'm trying to get the gearing specs for the stock RB25DET gearbox. I anyone can help, I would really appreciate it. Thanks in advance. HOLLA........
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faster than a speeding ticket.   
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#2
04-19-2005, 04:19 PM
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Re: rb25 tranny specs
GOOGLE
JUST MY 
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#3
04-22-2005, 12:27 AM
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okay now that i've done that (thanx btw), i'll need a little more help. excuse me for not being very auto-savy, but i guess that's why these forums were created in the first place. anyway though, i tried google search for my answer with no avail. now that i can calculate my own gear ratios, i need to know how to interpret them. i know that smaller numbers mean longer and bigger means shorter, but how do i apply that to a working model to which i can get an idea of what i ratios i may want to use for my custom set-up?
__________________
faster than a speeding ticket.
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#4
04-22-2005, 09:47 PM
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The best thing is just to get a kit like this:
http://www.amzperformance.com/z32/?p...e53ee30c981978 I don't know which type would be best for your application.
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1990 Skyline GTE/S-t 4 Door Updated 6 Mar Swapped out RB20E with RB20DET Trans converted from Auto to 5-Speed... Now with SR20DET 5-Speed Installed Type M 5-lugs and brakes, R32 GTR rims and 2-Dr rear end (Tail lights & bumper) 1994 Isuzu AMU US Spec Amigo with JDM Isuzu MU (Mysterious Utility, as it's called in Japan) nurf bars and hatchback style hardtop.
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#5
04-25-2005, 12:16 AM
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I just recently read a post on another forum about RB trannys and it brought something to my attention. I had already planned on having a 6-speed tranny made for the motor,however I just saw something about retrofitting a 2JZ-GTE Getrag to the RB25DET.
Quote:
__________________
faster than a speeding ticket.
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#6
05-10-2006, 11:19 AM
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Re: rb25 tranny specs
As far as help with ratio's I use an online calculator found at fatboyraceworks.com. I just enter the transmission ratios that I have as well as tire size and final drive ratio and it tells me my speed in what gear and rpm as well as graphing it for me. I hope that helps!
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