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01-03-2021, 06:41 PM | #23 | |
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01-09-2021, 05:05 AM | #24 | |
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03-27-2021, 02:35 PM | #25 |
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I'll go ahead and contribute to the cause:
1) N55 35i x-drive m-sport 2) VRSF charge pipe, Wagner EVO 1 intercooler, xHP stage 2, MHD stage 1 plus, 93oct ver. 1.60 3) 93 oct Amaco Ultimate 4) stock 18" m-sport rims with stock run-flats 5) Results taken with dragy 6) Brake boosted start (not just mashing the gas) |
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03-27-2021, 02:48 PM | #26 | |
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03-28-2021, 12:25 AM | #27 |
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Yes, still on the factory downpipe. The oem dp apparently doesn't present a big restriction to the small stock N55 turbo, as evidenced by the small power gains seen on the dyno when going catless. Plus, it looks to be a pretty big pain in the arse to remove/install the dp on xdrive cars. I think a dp would only net me maybe 0.1-0.2 sec of ET and 1-2 mph trap (if that) in the 1/4. To make substantial improvements, I'd need to move to a PS2 and upgraded HPFP, at which point a catless dp would be basically mandatory.
Now if I were regularly hammering the car for 20 minutes straight on a track, doing 1/2 mile events, or lots of 1/4 miles, it would be a different story. But for my fairly modest goals, the factory dp has been adequate. |
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03-29-2021, 12:09 PM | #28 | |
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