Presently running an HS TD05 20g, 1000 cc injectors, forged 2.5, fmic, Harvey's trick up pipe. Full group N decat.

What's next for more power?
Bigger turbo? But what?

 

What power do hope to achieve?

 

How have you found 20g on your gear box?

 

The gearbox is a six speed from an 04 plate Sti, so no probs.

 

Dunno, really.
Got 1000 cc injectors, but just about to get the map changed for 97 octane as I got fed up with having range anxiety using 99 octane.
Over 450?

 

Ah I see

 

MDX321T is a fantastic turbo for around the 450bhp mark on a 2.5, one of the best best available in my view. Andy Forrest once said to me “there are turbos that’ll make more power and there are turbos that will spool up more quickly, but none do both as well as the MDX321T”. That’s was a good enough endorsement for me and I went ahead and bought one and wasn’t disappointed. Past that lag becomes more of an issue so starts to detract from real world usability on a road car.