What box for SR

Well I'm getting fed up of this subject, I bought a R34 GTR Getrag box to use in my 180sx, it turns out that it needs a few bits to make it back to working condidtion and it would cost me more then buying a new box :wack:

I just need a gearbox solution, and i'm looking for ideas, i've been looking at posh after market ones but i don't think any of them would be really upto the job, Quife boxes are £6k and only rated at 350bhp :wack: unrealistic market there hey?

Any surgestions or things i could look at, I still think the best solution would be a getrag V160 R34 GTR box, but at £3k its just not worth it for a secondhand box.

Will be running 550bhp and 550ft lb, needs to be able to hold 600-700bhp at least.

Clarkey.

hmmm shit one lad...

Are bmw boxes any use?? Something like an E39 M5 box maybe? They tend to be able for lots of horses..

Jesus lad its hard to know....! Whats a rb25 box good for....! Close to 600.....! Your pretty limited if your looking for something that will hold 700 bhp....! Z32 box are same internals as an rb25 aren't they....! I know its expensive but maybe getrags the way 2 go....! Unless you wanna keep on blowing rb25 boxes....!

i have 350hp and 350 torque flywheel power and have a CA18 gearbox in it the last two years.only blow it four weeks ago.it took some hardship.it is down to driver end of the day i think.ya could get away with RB25 R33 SKYLINE box.hard to know whats right in this game

I had a 400bhp SR with a stock W71C gearbox and it lasted all year, on sticky Federal RS-R595 tyres, just got a bit noisey but didn't break.

The Rb25 box is clearly a good option and i already have the conversion plate here, but the box will not really be happy with 550bhp, thats thet same as running it behind a 650bhp skyline engine (as skylines don't make the torques the SR's do at the same power)

Because i plan to use Nitro to bring the car up onto boost it will produce alot of low down grunt, and will smash gears..

The other thing to bear inmind is the finial ratio, most people run 4.4/4.6 finals which doesn't pit as much load on the gearbox, but i run 4:1 finial as i prefer long gearing.

Clarkey.

clarkey i gave a mate of mine a r33 gtr no getrag box l8ly to put into a 180 thats going to run big power,, we reckon that it will be easy enoughto work,, or modify a r154 bell housing with a sr20 end and put a srtwin plate with j1 disks

mike dean cut and welded a sr bellhousing onto a rd25 box, iv heard his car has big enough power, anyone know the figures??

there is so many choices.try figure out which last the longest and best for the car.which is a job in its self

I'm sure if i wanted to i could make a small casing box last me, but i don't liek the fact i have to constantly drive around the box, thinking soft clutch pedal thoughts... lol.

99% of the problem is the clutch people used, i used a OS Giken supersinge and it was perfect, slipped when dropping clutch in low gears and always griped ect, I've now got a silvertop HKS twin plate sprung clutch which is more agressive.

I have full RB25 gearbox set up here, just would perfer something more hardcore.

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Originally Posted by superclarkey

i'm sure if i wanted to i could make a small casing box last me, but i don't liek the fact i have to constantly drive around the box, thinking soft clutch pedal thoughts... Lol.

99% of the problem is the clutch people used, i used a os giken supersinge and it was perfect, slipped when dropping clutch in low gears and always griped ect, i've now got a silvertop hks twin plate sprung clutch which is more agressive.

I have full rb25 gearbox set up here, just would perfer something more hardcore.

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or some thing more special on the spec sheet ha ha:d

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Originally Posted by S13..KEV

or some thing more special on the spec sheet ha ha:d

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Ha, If we are going off spec sheets, i already win that so no need to make the gearbox special too ;)

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Originally Posted by superclarkey

Ha, If we are going off spec sheets, i already win that so no need to make the gearbox special too ;)

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ONLY MESSIN ;) in ireland that would not be to hard WON ha ha

SR20DET

53J Head (high port)
Squish removed (CNC)
Port matched
Supertech Guides
Supertech Undercut Valves
Tomei 256° 10.5mm lift
HKS vernier Pulleys
Tomei Rocker stoppers
HKS Stage 2 head system (springs, rockers and retainers)
Supertech Titanium spring retainers
S14 Oil spary bars
New OEM Lifters
New OEM Chain kit and Tentioner
Ku Engineering Plenum
HKS Fuel rail twin, -6 inlets and -6 outlet center
Q45 Throttle body PhaseII


65F block
VVT blocked, decked, mains line honed, pulsar oil gallary mod.
HKS Liners
HKS 2.2 Stroker kit
CP Custom 2.2 Pistons with 9:1 CR
CT-1 Calico Racing bearings
ARP Mains and head studs
Greddy wide sump
New Nissan Oil pump
New Nissan Water pump
ATi Front pulley

Electronics
Power FC D-Jetro
Injector Dynamic 1000cc high impedence injectors
Splitfire Direct Ignition system
Iridium NGK Grade 9 plugs

Turbo
Full-Race Twin Scroll Manifold (coated)
Garrett GT3076R 0.72A/R Twin scroll (with steel bearing liners)
HTA Compressor wheel (not been done yet, but is planned soon!)
Tial 44 Wastegate

Is that a good spec ?? lol worthy of a proper gearbox ?? haha

Lad im jizzing in my pants at your turbo/manifold set up....! The best money can buy.....! Im in the middle of a build myself and i wanna run the same setup....! Can you pm me what it cost you please....!

The turbo kit wasn't cheap mate, but i didn't buy a complete kit, i just bought the turbo, mainfold and wastegate. I had them coated before they left the states.

I think by the time it landed after duty which was fucking £550 !! bastards!! it was just a fraction over £3k.

Clarkey.

ah the CA box all the way :D :D .i understand it needs it.read up on it on driftworks.some car fair play to ya.that t56 would be some job doh but serious money.what do you think you will do youre self

I know the R33 box would cope, it wouldn't just go bang the first run up the road, but what i don't want is to run 550bhp and get half way though a comp and bang.. to loose on mechanical failure is in my mind the worst thing that could ever happen!

Yeah i have spent a fair bit on the engine build, but i've been collecting the bits for the last 2 years, so when its finished shortly i will have my dream SR20, then i will be a happy man :)

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Originally Posted by superclarkey

The turbo kit wasn't cheap mate, but i didn't buy a complete kit, i just bought the turbo, mainfold and wastegate. I had them coated before they left the states.

I think by the time it landed after duty which was fucking £550 !! bastards!! it was just a fraction over £3k.

Clarkey.

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Not cheap lad but its defo money very well spent.....! Have you a link to a full turbo kit there handy...! Sure your not missing much out of the full kit are you....!

build a custom box end off story

You selling your broken 34GTR box?? Or what's up with it?

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Originally Posted by Stonie

You selling your broken 34GTR box?? Or what's up with it?

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I plan to keep it for spare mate, as i wouldn't get what its worth to be in bits.

The hub rings have broken up, not sure of the correct terminology for it but its fucked :) still works and selects gears, just struggles to get into 3-4 at higher RPM which is a pain for what i want.

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Originally Posted by peterhouze

build a custom box end off story

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I like your thinking man :D side step the problem buy just making it :D

Direct drive to the back of the engine lol :D

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Originally Posted by superclarkey

I know the R33 box would cope, it wouldn't just go bang the first run up the road, but what i don't want is to run 550bhp and get half way though a comp and bang.. to loose on mechanical failure is in my mind the worst thing that could ever happen!
i think loosein to a worse driver is ha ha
Yeah i have spent a fair bit on the engine build, but i've been collecting the bits for the last 2 years, so when its finished shortly i will have my dream SR20, then i will be a happy man :)

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would love to do something like that my self.a proper build with no shortcuts but hate missin events :mad:..............r33 would be the safe bet for the money

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Originally Posted by superclarkey

I plan to keep it for spare mate, as i wouldn't get what its worth to be in bits.

The hub rings have broken up, not sure of the correct terminology for it but its fucked :) still works and selects gears, just struggles to get into 3-4 at higher RPM which is a pain for what i want.

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Oh I understand what they are worth:-) savage box I would recommend looking into getting parts for it more if you are keeping it! Where did you try for parts?

Rebuild that r34 box would prob be your best bet, failing that r33 box, or go r154 box.. twin plate clutchs are box eaters either way :(

i THINK mike deane is running 550 at the fly and he is running a r33 box
as far as i know he has only broken 1 in the last 2 years or something like that which is good going!!
especially as he was running SUPER sticky silverstones on the back;)

300zx seems to me as your best option,running strong horse power myself(sr22 also),broke aload of sr boxes,1 rb box and a greddy 6 speed dog box,but the 300 box seems hard as diamond,i did do syncro mesh in 3rd at last event(hard to get into gear) but that could have been due to millage,and have been known for this problem,and nissan bought out a modified part which sorts that,so hopefully that will hold it,so thats what i would recommend,(also running 4.1cwp and its all 3rd gear drifting so would suite yourself

Well from the sounds of it, It would seem it would be silly not to give an R30A a go before going for a more expensive option.

This guy was using a BMW box from an e36 M3 with the bellhousing from an s14 welded on,its for sale too,might suit,not sure what these boxes can take.
He was only running 350bhp and 430nm of torque so not sure why he had it.
Apparently good for 4th,5th gear drifts??

Heres the thread:http://www.driftworks.com/forum/drif...te-norway.html

These are the box of choice stateside, stuck onto everything from SR's to Nascar V8's.

http://www.gforcetransmissions.com/tran_gsr.asp

Obviously not cheap but ridiculously tough and awesome to drive with.

I've said it before and i'll say it again...E39 M5 box.

The M5 box is a getrac box aswell as the supra and 34 GTR box so there is not goin to be much difference because they are all savage:-)

rb25 gearbox

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Originally Posted by fitzer

rb25 gearbox

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are poo when compaired to an e39 m5 box