engine swap

rios · Oct 8th, 2003, 10:00 PM

hello Z car guys. i never seen any info on this , so i'll ask you guys. what kind of engines could i swap into a 1985 300zx? a vg30dett? maybe an rb25det? any help would be appreciated

**Spongerider** · Oct 9th, 2003, 11:11 AM

Quote:

Originally posted by rios
hello Z car guys. i never seen any info on this , so i'll ask you guys. what kind of engines could i swap into a 1985 300zx? a vg30dett? maybe an rb25det? any help would be appreciated

In Japan they actually sold Z31's that had a SR20DET in it. You could also swap in a RB25DET or RB26DETT.

With money anything can happen you just have to have patients and commitment.

Z_Spool · Oct 9th, 2003, 06:58 PM

I was wondering the same thing. I was hoping I could throw a VG30DE-TT in it to keep a Z motor in it, but I don't know if it will fit without wrestling it in, since Z31's came with a Straight 6, and the Z32 Twin Turbo motor is a V-6. I never thought of the RB25DE-TT though.

240ZT · Oct 10th, 2003, 02:21 PM

Quote:

Originally posted by Spongerider
In Japan they actually sold Z31's that had a SR20DET in it.

They came with a RB20DET.

Quote:

Originally posted by rios
since Z31's came with a Straight 6

Z31's have a V6 not a straight 6

Z_Spool · Oct 10th, 2003, 02:24 PM

Actually, mine has a straight six, but it's a 300ZX so that may make a difference.

240ZT · Oct 10th, 2003, 02:28 PM

Quote:

Originally posted by Spongerider
In Japan they actually sold Z31's that had a SR20DET in it.

They came with a RB20DET.

Quote:

Originally posted by rios
since Z31's came with a Straight 6

Z31's have a V6 not a straight 6

**morepower2** · Oct 10th, 2003, 03:09 PM

Quote:

Originally posted by 240ZT
They came with a RB20DET.

Z31's have a V6 not a straight 6

In Japan they had a model with an RB straight 6.

Mike

**Spongerider** · Oct 10th, 2003, 03:14 PM

Quote:

Originally posted by 240ZT
They came with a RB20DET.

You are right I must have been asleep.

The Z31 that was sold in Japan that had the RB20det was called the Fairlady 200ZR !

180SX-X · Oct 10th, 2003, 04:23 PM

Just put an RB25DET and your good 2 go...

JZK316 · Oct 15th, 2003, 09:01 PM

You could put the VG30DETT, but it would make engine compartment way too packed if you could fit it in with out cuting out the wheel wells. I'd say go RB20Det or RB25det if you have a little extra money.