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Cheap Rb25 Conversion?

cherp

By cherp,
in Queensland

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cherp Enthusiast

cherp

Posted
  • Author
Posted

Ahh, just found out a mate from school is going to do it.

Just gotta pay sum1 to do the wiring.

Anyone with much info on it?

Is it

Straight swap? mounts line up? gearbox line up?

Were can i source a cheap halfcut?.

I Dont need Ecu as i have a 33 microtech.

Whats needed to be done for a mod plate?...

Thanks.

Oblivion Grand Master

Oblivion

Posted
Posted

man do it yourself, i am.

doesnt look to hard i will find out as i go.

i will gettin help from the lovely people from SAU if i need it though.

prob be able to get a from cut of a r33 for like 3500 if that, that gives you everything you need.

mechanics if you make it easy for you will prob do it for 2-3 K drive in drive out. with no other modifications.

Oblivion Grand Master

Oblivion

Posted
Posted
Ahh, just found out a mate from school is going to do it.

Just gotta pay sum1 to do the wiring.

Anyone with much info on it?

Is it

Straight swap? mounts line up? gearbox line up?

Were can i source a cheap halfcut?.

I Dont need Ecu as i have a 33 microtech.

Whats needed to be done for a mod plate?...

Thanks.

yes and no...it is a straight swap but it isnt....

you need to change the gearbox mount and the tail shaft..

use whatever computer you want, just tune it.

dont mod plate it....:O you shouldnt need to.

the r32 came out with a 2.5 ltr....or just dont advertise it as a 2.5 ltr you should be fine....

but i would mod plate it cause it is illegal not to....savvy

r33_racer Grand Master

r33_racer

Posted
Posted (edited)

gearbox mount needs to be modified...weld abit of angle along the back of it to pick up the last two bolt holes.

do it yourself and you might learn something about your car.

Edited by r33_racer
Squishy Experienced

Squishy

Posted
Posted

You can keep the Rb20 box (i have) but may not last you long... if you are going to use the rb25 box you will need to get a shortened tailshaft made up for around $700.. and you can use the existing rb20 harness if you make a few minor changes... it's all easy if you have a soldering iron hehehe

do it yourself ..... i have been quoted over $6000 for a conversion i did under $2000 :thumbsup:

Bunta Grand Master

Bunta

Posted
Posted
yes and no...it is a straight swap but it isnt....

you need to change the gearbox mount and the tail shaft..

use whatever computer you want, just tune it.

dont mod plate it....:) you shouldnt need to.

the r32 came out with a 2.5 ltr....or just dont advertise it as a 2.5 ltr you should be fine....

but i would mod plate it cause it is illegal not to....savvy

it easy as to get it mod plated cause like you say the 25de is an option in r32s I think it cost me $160 to get mine plated

people could save them selves the trouble and but mine???!

markimak Grand Master

markimak

Posted
Posted
man do it yourself, i am.

doesnt look to hard i will find out as i go.

i will gettin help from the lovely people from SAU if i need it though.

prob be able to get a from cut of a r33 for like 3500 if that, that gives you everything you need.

mechanics if you make it easy for you will prob do it for 2-3 K drive in drive out. with no other modifications.

3500 for a R33 GTST cut.. damn they have dropped...

Do TTR still do them? lol from memory the were around 5k

no offence but i knw of alot of ex employees from TTR.. and i knw of alot of stories.. as in moding the CA loom to fit RB20s. pm me if u want details.. i jsut dont like the company

You can keep the Rb20 box (i have) but may not last you long... if you are going to use the rb25 box you will need to get a shortened tailshaft made up for around $700.. and you can use the existing rb20 harness if you make a few minor changes... it's all easy if you have a soldering iron hehehe

do it yourself ..... i have been quoted over $6000 for a conversion i did under $2000 :)

yeh well help ya. throw up a BBQ and ill poke at ur engine.. but u make me work too much ill expect moolah haha

Oblivion Grand Master

Oblivion

Posted
Posted
You can keep the Rb20 box (i have) but may not last you long... if you are going to use the rb25 box you will need to get a shortened tailshaft made up for around $700.. and you can use the existing rb20 harness if you make a few minor changes... it's all easy if you have a soldering iron hehehe

do it yourself ..... i have been quoted over $6000 for a conversion i did under $2000 :)

yeah you can keep the box, i was gonna but then i thought...when it breaks....so i got a 25 one.

i heard that you can just change the yoke on the end???!?!?! or use a r33 front tailshaft piece. i could be wrong...i will crosse that hurdle when i get to it.

i didnt know you could use the 20 harness...thats cool as.

3500 for a R33 GTST cut.. damn they have dropped...

no offence but i knw of alot of ex employees from TTR.. and i knw of alot of stories.. as in moding the CA loom to fit RB20s. pm me if u want details.. i jsut dont like the company

yeh well help ya. throw up a BBQ and ill poke at ur engine.. but u make me work too much ill expect moolah haha

sif man pay you, we'll whip you till your finished the conversion.

BH_SLO32 Proficient

BH_SLO32

Posted
Posted

Can help with the wiring. I have done a few now. Excellent conversion, I even did one for my fathers R32 at the start of this year. He loves it!

I have personally done 2 now and have done them over a weekend with a hand from my bro-in-laws.

Cheers

Ahh, just found out a mate from school is going to do it.

Just gotta pay sum1 to do the wiring.

Anyone with much info on it?

Is it

Straight swap? mounts line up? gearbox line up?

Were can i source a cheap halfcut?.

I Dont need Ecu as i have a 33 microtech.

Whats needed to be done for a mod plate?...

Thanks.

dk_fabiosantos Explorer

dk_fabiosantos

Posted
Posted (edited)

It's easy if you have the tools and know what you are doing, it takes more than anyone is going to tell you here on the forum but is not that hard, start using the r32 complete wiring harness only changing the 4th and 6th injectors pins

(rb25 igniton is different.), use r32 ecu, you need to use the r33 yoke (it is the begining of the driveshaft that connects into the tranny), the transmission mounts must to be changed (the r33 tranny seats a little farther than the r32, you'll need to custom your cluster if you are going to use the r33 tranny (r33 reads the speed digitally and r32 use a cable from tranny to the back of your cluster.).

If you don't mind for timing and you want the r33 front end too it's going to take really a lot of work!(I'm doing right now this conversion, r32 with r33 front end and complete front end wiring harness with the rb25 motor....lol it is really been a lot of things to do.)

gl with your swap.

Edited by dk_fabiosantos
showbag Enthusiast

showbag

Posted
Posted
You can keep the Rb20 box (i have) but may not last you long... if you are going to use the rb25 box you will need to get a shortened tailshaft made up for around $700.. and you can use the existing rb20 harness if you make a few minor changes... it's all easy if you have a soldering iron hehehe

do it yourself ..... i have been quoted over $6000 for a conversion i did under $2000 :)

if anyone needs a tailshaft made give brendon at petron automotive a call (its on tradelink rd in browns plains) Tell him matt with the rb26 s14 sent you, he will lookafter you.

if your paying $700 for a tailshaft im pretty sure you would be getting ripped off. but it depends what you are after i spose

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