After fixing a few issues with the original config of my Link G4 Storm we ran the car on the dyno this week. With some tuning the results were 193 Bhp at Crank and 145lb/ft at Crank. I am happy with this as the engine, although rebuilt with ARP and uprated parts, is essentially stock performance wise.
What is confusing me is that after 7,000 RPM the power and torque drop away pretty quickly and I would have expected a flatter curve until 8,000rpm or so. I have lift engaging at 5,600rpm.
Any thoughts on why this might be, or should I stop over analysing this
?
My suspicions are that the main offender may be my exhaust, this is a solution built from a Toyosport header, the cat removed and a Blitz rear silencer.
I appreciate your time to offer any ideas.

What is confusing me is that after 7,000 RPM the power and torque drop away pretty quickly and I would have expected a flatter curve until 8,000rpm or so. I have lift engaging at 5,600rpm.
Any thoughts on why this might be, or should I stop over analysing this
My suspicions are that the main offender may be my exhaust, this is a solution built from a Toyosport header, the cat removed and a Blitz rear silencer.

I appreciate your time to offer any ideas.