RB25DET Silvia conversion.

[LOVE2XLR8]

Hi, my bf is planning to do an RB25DET silvia conversion. I was wondering if anyone here has any information or experience related to this conversion, or can add anything to his list so far that needs to be considered.

Cheers

-

SR20 Auto gearbox crossmember.

R33 Engine crossmember with R32 mounts.

Plenum will hit bonnet, chop support from under the bonnet or put spacers in.

FMIC and custom piping.

Aftermarket front and dump pipe.

3" exaust.

The sump will need massaging cause it sits just touching the sway bar.

Cant use the engine fan, need thermo fans prefably two of them.

You can keep the air conditioner.

Can use standard hydraulic lines and power steering lines

Use r32 radiator

Hoses are on the same side as rb25

Aftermarket ecu wolf v4 plus

Can get strut bar, but unsure what size will fit under the bonnet and clear the plenum

Tail shaft need custom to make it fit

R200 mechanical lsd

Throttle cable in SR is longer than rb25det, you can cut the SR cable or use the rb25 one

[Nismo_Boy]

<< Look at my photo gallery for rb25det conversion pics.

[PHaT MR30]

instead of chopping the shit out of the bonnet why not have the mounts lowered, which is what my car has had done.

every car i have seen has had to do away with aircon, and if you have a FMIC no chance either i reckon.

show me a strut bar that fits ill buy it!!! custom jobbie i reckon

[Nismo_Boy]

Phat Mr30.. The car in my gallery, still has air con, and the strut brace is from white line.

[PSIKO]

Hi, my bf is planning to do an RB25DET silvia conversion. I was wondering if anyone here has any information or experience related to this conversion, or can add anything to his list so far that needs to be considered.  

Cheers

-

SR20 Auto gearbox crossmember.

R33 Engine crossmember with R32 mounts.

Plenum will hit bonnet, chop support from under the bonnet or put spacers in.

FMIC and custom piping.

Aftermarket front and dump pipe.

3" exaust.

The sump will need massaging cause it sits just touching the sway bar.

Cant use the engine fan, need thermo fans prefably two of them.

You can keep the air conditioner.

Can use standard hydraulic lines and power steering lines

Use r32 radiator

Hoses are on the same side as rb25

Aftermarket ecu wolf v4 plus

Can get strut bar, but unsure what size will fit under the bonnet and clear the plenum

Tail shaft need custom to make it fit

R200 mechanical lsd

Throttle cable in SR is longer than rb25det, you can cut the SR cable or use the rb25 one

-you need to use 33 mounts with the 33, sits lower and has 2 bolt pattern onto the xmember rather than 32 1 bolt

- you could 'massage' it, might cause problems with oil flow, better to space the sway bar from the body, about 10mm

- would also be good to enlarge/baffle sump while it's out

- might be wrong with the 25, but I think you 32 bottom (if using 32 radiator) and 33 top hose

- front pipe can use rb25 , fits into the s13

- can keep ecu, seen a lot of 25's eating it lately with wolfs but might be just me

that's all I can think of atm

[AZAgts25t]

you are going to need a whole new computer, it would help to have a better gear box but if you use just a normal old clutch the clutch will go before the gear box how ever you will have to keep replacing the clutch buts thats better than the gear box. So i recomend you use a rb25 gear box(if she will fit which im not to sure about) a rb20det gear will fit and wil hold and is about 1800 dola cheaper. if i think of anything else ill give you a buz