Originally Posted by
Robo
That intercooler you have, are the ends where hose clamp to/over it rather thick?.
I found on my car that this caused alot of turbulence may-be back pressure on inlet port.
I cut a car wash sponge making a round plug and pushed a little way into in/out ports of cooler, coated this with spray grease to seal this over and ported them out, " tapering " in/out ends of cooler .
keeping tilted down carefully used long-nose pliers removed 1 sponge and cleaned up, made a through job to ensure nothing left behind to fall inside, and then cleaned the other the same .
this made a notable increase to torque.