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old mate
  • old mate
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  • Joined: 18-November 04
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  • From: Planet Rad
Post #1 post 14th January 2007 - 11:52 PM
so how much power can an rb20det gearbox handle. i have a cefiro but i think they are the same.
does anybody know from experiance???

cheers boys and girls...
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Aiight
Post #2

auto or manual?

and i always stick by it depends how you drive it.

but i have heard (so dont take it as a fact lol) that they tend to give way once your makin 250+rwhp

you could probably do it though just treat it with some respect

70YRB
Post #3

well im about 2 make more then that in2 mine and ive seen heaps of people maken more then that so i think it can handle alot

old mate
Post #4

well its a manual. but i have been told by a few shops that it will need to be replaced but i have also seen a few making over 250rwhp with standard box. i plan to have 300rwhp so im hoping to not have to strengthen or uprgrade the box.

70YRB
Post #5

same im going 2 make 350 next week ill let u know
Innocent_Commuter
Post #6

Sure it can handle it.. ..But for how long?
If you have 350rwhp and a chunky clutch (i assume) and you start shnap'ing through gears, i would not expect it to last long. Depends on how you drive i suppose.

70YRB
Post #7

yep i guess but it da same wit any car realy

old mate
Post #8

well i dont slam gears if im giving it some but i dont realy want to be too tender.
yeah toyrb that would be cool if u could let me know. what have u done to get this power?
200sx
Post #9

Well car makes near 300 still has the RB gearbox in it and mine gets a bit of a using and she is stronger then ever it really depends on the clutch and how you treat her

old mate
Post #10

well i will be upgrading the clutch before the power goes in. what clutch do you have 200sx?
or what would be a suitable clutch for that power?

kurly_ni5m0
Post #11

i would go an organic plate clutch.. dont put a brass button or anything hardcore in it, unless you want to replace the gearbox every couple of weeks..

old mate
Post #12

is an organic plate clutch softer on the gearbox but can still handle that power?

(car will not be drifted)

200sx
Post #13

i run a heavy duty clutch works a charm takes a bashing and is so light and easy to use.

old mate
Post #14

ok cool. i just wanna get it right and not have to do things a few times so all this helps guys. cheers.

RiCeZiLLa
Post #15

mine makes ovr 300hp and 3 months later still holdin up with heavy duty clutch

pin
Post #16

my mate has r32 with 200bhp and brass button clutch, he goes out on drift days fair bit, still same box for 2 years.

MuchDa-Bogan
Post #17

QUOTE(kurly_ni5m0 @ Jan 15 2007, 07:09 PM) [snapback]1280674482[/snapback]

i would go an organic plate clutch.. dont put a brass button or anything hardcore in it, unless you want to replace the gearbox every couple of weeks..

thats the best advise so far given.. these box's are shit. and die after a thashing at about 250+hp.. they are the same as a VL n/a box but have about 1/4 the k's. these box;s are as week as piss and u should just put a r33 box in smile.gif

321cya
Post #18

QUOTE(MuchDa-Bogan @ Jan 15 2007, 08:18 PM) [snapback]1280674752[/snapback]

thats the best advise so far given.. these box's are shit. and die after a thashing at about 250+hp.. they are the same as a VL n/a box but have about 1/4 the k's. these box;s are as week as piss and u should just put a r33 box in smile.gif


ok and for a min of $1500 just 4 a box (but there soo hard to get some jap wreakers are selling them for over $2000) then the cost with the install and all the other crap that goes with it

rb20det boxes are good just depends how hard u are on it

i had 250rwkw for over 3yrs and the box copped the biggest floggen in its life and never missed a beat (that included 7000rpm launches ,flat shiften through all gears etc)

just dont put a short shifter in it and it will last longer

RiCeZiLLa
Post #19

QUOTE(MuchDa-Bogan @ Jan 15 2007, 08:18 PM) [snapback]1280674752[/snapback]

thats the best advise so far given.. these box's are shit. and die after a thashing at about 250+hp.. they are the same as a VL n/a box but have about 1/4 the k's. these box;s are as week as piss and u should just put a r33 box in smile.gif


and u are basing ur opinion on???
im not sayin that rb20 boxes are tough but gee ive had my old box for 3 1/2 years running 200+ hp and it took it like a champ till i missed a gear he he then it decided to go to a better place
the current box is holdin up ok but for how long who knows but i think it has to also come down to how u drive it maybe some ppl need lession in chaging gears smashing gears and flat changing will break anybox if u do it harnd enough and long enough

old mate
Post #20

well i think i will see how long i can ride the standard box out ofr then. yeah 33 boxes seem expensive. maybe it would be cheaper to rebuild a standard one with stronger bits???

RiCeZiLLa
Post #21

QUOTE(old mate @ Jan 16 2007, 05:51 PM) [snapback]1280677858[/snapback]

well i think i will see how long i can ride the standard box out ofr then. yeah 33 boxes seem expensive. maybe it would be cheaper to rebuild a standard one with stronger bits???


no point if ur goin to do that u might as well bite the bullet and go R33 but untill u hav probs i wouldnt worry about it hey if it anit broke dont fix it as they say
MuchDa-Bogan
Post #22

Edit - Dribble removed from post

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