Quick rb20det into s13 guide

[Neil_se]

I just replied with this information to a silvia thread, but more people seem to read the 240sx section. I've noticed bits an pieces of info on this site so i thought i might put it together and add a bit more.

Pretty much everything you need is contained in the halfcut. You need to use the rb20 engine (duh), gearbox, speed sensor, tailshaft, crossmember, engine loom, engine bay loom, and ecu.

The engine bay loom needs to be mated with your loom in certain places like at the headlight loom. The ca speed sensor needs to be machined to fit into the rb gearbox, but i've heard that the sr20det (not sure about de) speed sensor will fit. The manual rb20det gearbox will fit perfectly with the manual s13 tailshaft.

The engine is an alright fit in the bay, requires a bit of a fiddle to get down into position. You have to take off the stock engine fan as it obviously won't fit. Use the rb radiator, its a bit thicker. 2x 12" thermo fans fit nicely on the aircon condensor (or radiator if you ditch the aircon like me). You use the rb20 crossmember and engine mounts, but the s13 steering rack.

If your s13 doesn't have hicas then you need to take the back off your power steering pump and remove the little metal squares then put the back on. The fitting that comes off it also needs to be cut and plugged up (i had a radiator shop weld a piece of brass on the end). We used the s13 powersteering lines that go along the front of the crossmember, but i've heard the r32 might fit better. The swaybar will foul on the sump so just use some spacers (about 8mm) under the swaybar mounts.

Use the r32 aircon hoses. s13 clutch and brake cylinders (but if it'd done mine again i would have replaced mine with the r32 brake master and slave, they are better). r32 dump and front pipes (sit a little low though so i went custom) with s13 catback. You can combine your s13 and r32 intercooler pipes to run to the stock cooler, but i upgraded to fmic. Use the r32 tacho needle behind the cluster.

My engine sat too high for the bonnet to close so i spaced the bonnet at the back. The 180 and silvia bonnets sit differently so people have more luck with height in silvias.

I can't remember what else there is but that's the major things. Please note that this is when upgrading from a ca18det or sr20det, i'm not sure if anything changes with the ka.

[stealthj]

should be added to the RB faq. or should just erase the unstable hybrids faw cuz its useless and its not accurate and it sucks but this one is good thanks