Wanting to get some advice on internal or external gates if someone could spare a few minutes.
Have just had my RB20 tuned with the following:
Stock RB20 internals
Z32 AFM
Bosch 630cc Injectors
Walbro Fuel Pump
PowerFC
GTR V-Spec II Coil Packs
Standard exhaust manifold
Chinese front facing plenum, standard runners
Generic looking FMIC
3" exhaust, pod filter
Kunigawa TD05-18G Anti Surge, internally gated.
15psi spring (I think)
Turbo Smart bleed valve
here is the Dyno graph, all looks reasonably normal
The problem I have is that it shoots to 15psi pretty quickly, then it sort of sits there for a bit until around 6 - 6500rpm then goes to 19psi. It just seems like the IG isn't really doing its' job, is it going to be worth spending the $500 or so it will cost to go external gate?