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Hows things fellas,just wondering could someone tell me what modifactions need to be made when doing an sr20det conversion on a A31....im currently doing this and im looking for info on what needs doing,somethings i have noticed are the rb has a mechaincal speedo wear as the sr box has a electric{wire and plug}how do you get around this,also there are to other plugs on the gearbox which i havent a clue what there for?does engine mouts have to be modded?drive shaft does that have to be modded?does water lines.heather lines ect have to be modded,as much info as possible please guys thanksyes.gif

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I have an SR20 in my cefiro.

Use a silvia front crossmember.

Radiator will need to be from an S13/180sx or you can use an RB series radiator if you extend the top radiator hose to the other side.

have read that some combination of gearbox crossmember will fit but I couldn't figure it out, just modified my current one.

Can't remember exactly about the tailshaft, I think if you unbolt them at the center bearing and swap the front half over it works.

heater lines are just rubber hose, you can easily make it fit.

Needs a few wiring modifications but I didn't do the work so can't tell you there.

I would definitely do this conversion again to R32/cefiro/laurel, the RB20 just doesn't compare.

Edited by daisu
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I have an SR20 in my cefiro.

Use a silvia front crossmember.

Radiator will need to be from an S13/180sx or you can use an RB series radiator if you extend the top radiator hose to the other side.

have read that some combination of gearbox crossmember will fit but I couldn't figure it out, just modified my current one.

Can't remember exactly about the tailshaft, I think if you unbolt them at the center bearing and swap the front half over it works.

heater lines are just rubber hose, you can easily make it fit.

Needs a few wiring modifications but I didn't do the work so can't tell you there.

I would definitely do this conversion again to R32/cefiro/laurel, the RB20 just doesn't compare.

sounds good dude thanks very much...about the front cross member i taught sr20 drop straight into skylines so would it not drop straight onto the cefiro mounts?also the the 2 little pin type mounts on the end off the sr rad,do they sit into the original cefiro holes on the support legs?A manual cefior mount is the same as an s13 so it should work on the same mount if you have a manual cefiro which i do?

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My understanding was that the SR conversion requires the crossmember from a silvia even if it is going into a skyline. Perhaps you can use custom mounts or something otherwise.

Cefiro's are funny with gearbox mounts. I used an S13 manual gbox crossmember to convert my originally auto RB20 to manual, but the same crossmember didn't work so well with the SR conversion. If your cefiro is factory manual then the case may be different.

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