The rb25det upgrade on a rb20 doesn't do much at all. Ive seen a few put on rb20's and they get like 8hp max. Thats *** all.
I hi flowed the rb20 turbo with a sierra cosworth rear wheel and v-trim front wheel and put a vg30 compressor housing on which is slightly bigger than the rb20.
Power went up 50hp. FUll boost by 3800. Which is pretty good for a 20.
I'll go outside to represent r32 gts-t if u want. Engine bay and exterior should be half decent by auto salon. Thats the goal anyway. No licence = lots of time to spend on mods.
Good to see it made huge power. If you were to have the fuel and pistons to handle it 25psi would make massive power . Im thinking 400 + at wheels.
Turbo seems to be working good rob Once you get some sort of tuning on there will probably reduce the spool up time as well.
The r31 compressor wheels are really small. There useless at holding boost.
If its a late model r32 turbo 92-onwards then it will be a worthwhile upgrade. The early r32 turbo is pretty useless.
R32 ugly ? ok well what i really want is a Poo Grey R33 with a 2metre high wing like Pauls and Red wheels that were painted with a paint brush. Oh and i also need 15 sec quarters