Post by
RustspecS13 »
https://forums.nicoclub.com/rustspecs13-u75597.html
Tue Jul 27, 2010 8:29 pm
Any VG trans will work, but newer the better to keep the miles low.
VG30DEs will be pretty heavy, but you'd be better off then an RB because its roughly the same weight but only 3 cyl long instead of 6.
They are difficult but cheap.
You'd be far better off with a VQ30DE swap. With mods they can do 200-230whp with very large/wide power bands. A stock bolt on with no tune could do 180-190 super easy with more torque then that. They are also very efficent motors and get 27-30 mpg in the 3200-3300lb maxima. They come with 10:1 compression heads and flow nicely.
And the VQ30DE ecu doesn't have any nats or immobilizer like the 350z swaps, so they are far easier. Id do a megasquirt or haltech standalone, or actually I think nistune is available for them. That way you can tune for more HP and better fuel mileage.
I have a VQ30 and VQ35 sitting in my garage right now. Eventually I will have 2 S13's each VQ powered. One for daily and one for track use.
Thats best case scenario. Honestly if you don't make too much money, start over with another KA. Do a proper rebuild with stock parts, get the block and head hot tanked and cleaned, get a new oil pump and build a good KA-T. Put in a J30 diff, or ring and pinion, and rock nistune for a nice reliable setup. A VG30ET t3 turbo would work very well. If you can stay in vaccume and tune it properly I dont see why it cant get better gasmileage cruising then stock.
If you really are concerned with mpg you can get a CA18DET. Different then an SR, and its an amazing motor as well. They sound great, and get great gas mileage. But you will loose some torque, but its a trade off.
~Alex