Rb25 Neo Turbo On Rb20det

[subie]

hi guys,

looking at getting RB25's turbo from R34 engine, will it bolt straight on to RB20? do i need to mod any water line? or anything else? how much should i pay for a top condition one?

cheers

Edited December 30, 2007 by subie

[Simon-S14]

will bolt on, much like all the other rb25 turbos...

it will, however be more laggy due to the larger rear housing (OP6 size)

expect to pay 300-500 for one

[Abo Bob]

Yes bolts straight on. About $500.

[Adriano]

I though you had to drill out the banjo on the water lines and use the bigger rb25 banjo bolts, but im going off what ive heard, never actually done it.

[GTS20X]

If it's a silvertop you don't need to modify the banjos.

[subie]

thanks guys..

btw, how can i tell it a silvertop RB20 (it's in my 92 skyline gtst) and what is benjos?

sorry guys i'm just little noob on technical side

[Simon-S14]

if its from a 32, its a silvertop.

banjo bolts are special bolts which pass fluid through them, they through an eyelet fitting which has a solid steel line going to it, there are three on the turbo, two water feeds and an oil feed.

nothing needs to be modded, the turbo will fit straight up.

[subie]

thanks guys, the RB25 Neo turbo on RB20 problems was solved... once again, thanks guys

now, i have some more questions relating to fitting this turbo on my RB20det with usual mods..

- pod filter

- Hybrid FMIC

- 3" turbo back with hiflow cat

- walbro 255 fuel pump

- manual boost cont. runing 13psi

- standard ecu

ok, if i fitted this RB25 Neo turbo on my RB20det,

- what else need to be done?

- can i run this set up with my stock ecu?

- should i remapping my stock ecu? (dont have enough budget to buy stand alone computer yet)

cheers

Edited December 30, 2007 by subie

[dead32]

maybe back the boost off, take it to a dyno and pay for a couple power runs etc, increase the boost till bout 14psi if your game and see what it makes.

[R31Nismoid]

Please read this subie

http://www.skylinesaustralia.com/forums/Fo...ick-t66556.html

It contains links for basic questions etc.

[sloutch]

thanks guys, the RB25 Neo turbo on RB20 problems was solved... once again, thanks guys

now, i have some more questions relating to fitting this turbo on my RB20det with usual mods..

- pod filter

- Hybrid FMIC

- 3" turbo back with hiflow cat

- walbro 255 fuel pump

- manual boost cont. runing 13psi

- standard ecu

ok, if i fitted this RB25 Neo turbo on my RB20det,

- what else need to be done?

- can i run this set up with my stock ecu?

- should i remapping my stock ecu? (dont have enough budget to buy stand alone computer yet)

cheers

Yes i think you should remap your ECU if you don't have the finances to buy an aftermarket ECU.

A mate of mine ( Limpus ) is running a HKS turbo in his RB20det with a Dr Drift remapped ecu. He'll have great knowledge on that. Do that first then save up some money and get a Power FC or something similiar.

[Adriano]

A PFC wont get any large gains over a good remap, remember there are 800hp GTR's in japan with remaps.

[subie]

Please read this subie

http://www.skylinesaustralia.com/forums/Fo...ick-t66556.html

It contains links for basic questions etc.

yes i did but nothing cover on Neo's turbo on RB20det...

thanks

[R31Nismoid]

They are the same thing for all intents and purposes.

No different other than a tiny larger rear housing, the threads would explain that