The heavy load in the transmission comes from the front half right? Pump, torque converter, etc are all driven directly from the input shaft. Then there's the loss from flywheel crankshaft, valvetrain, and all the belt driven engine accessories that would be removed from the equation. I don't see how that could be considered remotely accurate.
Good point on valvetrain. But the front half of the transmission (pump), flywheel, and and belt driven accessories can't be calculated if they aren't attached to the driveline on the coast down, right? Perhaps they are similar enough across vehicles that a fixed never or % is applied to account for them. Either way, there would have to be some guesstimation for these.Torque converter is locked so no real losses there. All of the valvetrain, engine, and accessory loads would be present on an actual engine dyno so you want them included.... You are just using the coast down to subtract out losses from the flywheel back
GFB does 2 things for you which IMO are worth the price of admission:...
Skip the gfb. The stock valve works perfectly and the gfb may or may not cause faults. Go with a high flow panel filter until ec solves the limp mode issue with ec v2 intakes 100%. They have a hardware fix thats 80% and are working on a software fix.
From memory on the Q4, I remember the difference being significant enough to feel and I enjoyed the power difference. It almost felt like that's how the car should have come from the factory. There was more meatiness above 2500 rpm... I want to say there was a bit better throttle response as well off the line, but can't remember exactly. I never dyno'd the car but I'd say 30hp is a fair assessment. I know the guys at EC mentioned it would take about a full tank of gas w/aggressive driving to really set in. I only had the phase 1 with their V2 intake.Ok...trying to get through all this but my ADD kicks in and I go into mental limp mode.
so some takeaways.
EC sorta full bs BC 80 plus bhp not proven
most folks/ sellers will fudge numbers.
Can those w EC stage chime in on how the car feels please? I see a guy asked but no responses.
id say some can provide a decently honest assessment. Butt dyno.
im looking for some hp...not lots...40 to 50 would b nice!!