Quote:
Originally Posted by eeyang92
Quote:
Originally Posted by Bee Pee
Stock tune - BEFORE chart - 412HP at the crank/350WHP with just a 300cpi DP seems to indicate an optimistic dyno.
AFTER chart - the change in shape at the top end in is same/similar to what I saw when I added Pure inlet to my M135i n55. Inlet upgrade is definitely worth doing IMHO, peak of +8WHP at +500rpm ie almost at the redline demonstrates stock inlet is bottle-necking comp side of stock n55 turbo.
Oddly, torque curve is worse throughtout 2nd chart as low rpm spike then trough straight afterwards may hint at the car not being tied down/position correctly on the dyno's rollers.
3ptp - Great result as-is - just eyeballing - area under the power curve is roughly +30% whereas torque curve is less. I'd suggest you get the car re-dyno'd on Dyno Dynamics dyno as these tend to more realistic in terms of actual numbers.
BP
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Yeah, I agree. Although, the wheel HP seems fairly accurate with a sport cat, it's possible whatever equation they're using to compute BHP is off. Normally the drivetrain loss is ~10% for RWD? 412 BHP would make that 17%.
Seems like there's a turbo inlet in my future. MST looks nice although I am worried about KevM2's report of it rubbing against other parts in the engine bay. It seems the new pure inlet now has the flange to prevent it from popping off? |
DCT RWD - CHP to WHP would be in the 15-18% range
I think the tight clearance of MST inlet can be managed during the installation.
I have CSF FMIC, AFE dry drop in, ER boost pipes, Pure inlet and GFB fb+ cw Fspeed 200 cpi DP with stock tune on Dyno Dynamics dyno it made 340wHP.
So similar range esp as numbers do vary from dyno to dyno. Hence my comment just above getting a run on Dyno Dynamics to verify as dyno type used in the before & after charts posted above aren't specified.