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R33 N/a Gearbox Power

skyline_freak_r33

By skyline_freak_r33,
in South Australia

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skyline_freak_r33 Community Regular

skyline_freak_r33

Posted
Posted

Hey

I'm contemplating to upgrade the turbo on my car but my mate was telling me my r33 non-turbo gearbox wont be able to take the extra power. I've tried searching for power figures but nothing is on the net regarding the max power for a n/a gearbox. Anyone on here know that answer? Would it be a better option to sell my current box before destroying it and swapping it with a turbo one?

Cheers

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DamageInc Grand Master

DamageInc

Posted
Posted (edited)

they arent the same.

pretty sure rb25de box is the same as rb20det. they are the same size and i noticed this when i was working on Dom's car.

rb25det gearbox is much larger

Edited by DamageInc
DamageInc Grand Master

DamageInc

Posted
Posted

Serious so their the same? no... they are weaker.

So i wouldn't have to watch out for the power gains? replace it with a custom GTR box from Japanese Motor Sport (same internals just customized to be RWD)

cheers steve

DamageInc Grand Master

DamageInc

Posted
Posted

yea i remember you telling me that mitch

do you reckon its worth me getting them changed over??

cheers mitch

what turbo you wanting to upgrade to?

remember you'll need to upgrade the ECU aswell if its not a stock rb25 turbo and you may need a boost controller depending what you go for

skyline_freak_r33 Community Regular

skyline_freak_r33

Posted
  • Author
Posted

I was thinking of upgrading to a garrett 3540r?

or i was going to get my turbo highflowed! Whats the going rate at the moment to get them highflowed?

how much you reckon that gtr gearbox will set me back?

cheers mitch appreciate it

what turbo you wanting to upgrade to?

remember you'll need to upgrade the ECU aswell if its not a stock rb25 turbo and you may need a boost controller depending what you go for

Tommy Kaira RL Mentor

Tommy Kaira RL

Posted
Posted

they arent the same.

pretty sure rb25de box is the same as rb20det. they are the same size and i noticed this when i was working on Dom's car.

rb25det gearbox is much larger

+1 The Na box is smaller than the turbo one. I have done all these conversions about 2 yrs before you like turbo, brakes 5 stud conversion. I know one thing the Na box didnt last long. I now have a turbo box which needed different tail shaft and the plugs were different. Clutch and flywheel are same. But havent broken one since and now have 260rwkw

DamageInc Grand Master

DamageInc

Posted
Posted

I was thinking of upgrading to a garrett 3540r?

or i was going to get my turbo highflowed! Whats the going rate at the moment to get them highflowed?

how much you reckon that gtr gearbox will set me back?

cheers mitch appreciate it

could go a 3540r , remembering you'll need braided lines , custom dump pipe and a new front pipe.

not to mention an rb20/z32 ecu or a power fc. and you would probably want to do bigger injectors and a nismo Fuel Pressure Regulator.

i think a hiflow through ATS is about $2400 and thats using 3076r internals so it looks all standard from the outside and will pass regency.

just source a standard 25 box people will try to charge more the "RB26" box converted to rwd

no they wont

SkyHi_33 Mentor

SkyHi_33

Posted
Posted

NA box is rb20 gearbox.

Turbo box is... turbo box

GTR box is rb25 turbo box with transfer case to make it awd

GTR box with transfer removed is a cheap rb25 box. (will need different coupling for tail shaft)

GTR/gts4/rs4 gearbox = $800(avg), to convert to rwd $150 - 200

rb25det box = $1500 (avg)

you do the math.

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