No question the RB 30 sounds sweeter - we have one of each and I've only heard one VT V6 that sounds good.
Bloke up in Strathpine QLD. HE put a lot of work into it. I keep mine quiet.
Don't laugh though, that V6 has WAY more torque than mildly modded RB30s no real increase in weight, more than a VL turbo up to about 5k. Torque is what turns the axles
Set the V6 donk back for better handling than an RB30 can give you - as the OP said.
A cheap, stock drop in. Keep it quiet and you have a low cost sleeper.
Saw a complete (running) car at action go for a tad over $200.
Part it and the engine pays for ALL the other mods.
Turbo it and it HAMMERS in that light body.
I wonder if it can be stuffed into a 1200 ute?
Pics .. https://photohounds.smugmug.com/Cars
