Hey everyone. Looked around but couldn’t really find an answer.
so I changed the intake mani to forward facing with an 80mm throttle body on my R33 GTST (RB25DET Neo). Does this mean I need/should get larger than my 2.25” ID charge piping? The intercooler also is 3” inlet/outlet (just had reducer to 2.25). Is it hindering with that small of piping for that size TB?
Well adding larger TB and pipework unless you plan on going 500+ BHP is just throwing money at it and why the 850cc injectors? Have you got a decent stand-alone ECU? Otherwise, going bigger injectors can cause problems with spry pattern if you're not running a higher pressure system.
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