03-23-2018, 06:29 PM | #45 | |
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2005 evo 8 (current) built 2.3 488/409 mustang dyno Old stable mates - 87 325i, 88 m3, 90 m3, 97 m3 4dr, 04 325xi, 91 gmc Syclone, 08 335xi, and 13 x3 35i msp 2014 x5 50i msport |
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03-23-2018, 07:31 PM | #46 |
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Plus $300 for the dongle to change it yourself
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03-23-2018, 08:20 PM | #48 | |
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Last edited by BobBeau; 03-23-2018 at 08:25 PM.. |
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03-25-2018, 02:54 PM | #49 | |
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03-25-2018, 04:26 PM | #50 |
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Gobs of torque and power feels effortless (if that makes sense). The throttle doesn't seem as responsive with the tune compared to the stock tune. I've also noticed that the transmission doesn't like to downshift at the tap of the throttle as with the stock tune. In other words you really have to put your foot into it in order for a quick downshift. For example, if I'm cruising around 45 mph and low rpm... if i step on the gas (1/4 to 1/2 throttle) the rpm's will climb from (let's say) 1200 rpm instead of the transmission downshifting to a lower gear. Unless i put my foot 3/4 or fully to the floor it likes to remain in the gear it's in. The car seemed much quicker to downshift with the stock tune. This happens in both comfort and sport mode. The power is always there so this isn't necessarily a bad thing, I'm just not used to it. I've a message into HC Performance in Denmark. Next step is to do some data logging and get a custom tune from them.
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03-25-2018, 04:30 PM | #51 | |
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03-25-2018, 04:50 PM | #52 |
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I'm in the same boat. Debating between the same two tunes.
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03-25-2018, 05:16 PM | #53 |
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Vivid racing also has a tune for those interested.
Those throttle issues are worrisome. One of the reasons I was hesitant, not just in flash tunes, but wired ones too. Some folks reported issues. |
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03-25-2018, 05:22 PM | #54 | |
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As far as power from a dig... i did a roll out the other day (let off the brake and punched it in sport mode) and it threw me back and pinned me to the seat. Really wasn't expecting it to launch me like it did. Another trip I power braked it to about 1500, nailed it and it hit the rev limiter. Do you know if there's anyone else on this forum already running this tune? Would like to compare thoughts |
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03-25-2018, 06:19 PM | #55 | |
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03-25-2018, 09:45 PM | #56 |
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I'm more comfortable with a quality flash tune, but I agree the shifting issues are worrisome. What really worries me is the longevity of the motor. BPC claims a 127hp gain to the wheels which easily translates to 140+ at the crank. That's an amazing power boost for the money, but can the bottom end really handle that much added power for long? I'd wondering if I'm better off with a detuned flash that provided 75rwh in the hopes of better engine life.
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03-25-2018, 10:19 PM | #57 | |
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03-26-2018, 05:12 AM | #58 | |
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2022 x5 m50i - Dravit grey
2005 evo 8 (current) built 2.3 488/409 mustang dyno Old stable mates - 87 325i, 88 m3, 90 m3, 97 m3 4dr, 04 325xi, 91 gmc Syclone, 08 335xi, and 13 x3 35i msp 2014 x5 50i msport Last edited by CT335xi; 03-26-2018 at 08:24 AM.. |
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03-26-2018, 07:47 AM | #59 | |
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03-26-2018, 08:27 AM | #60 | |
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2022 x5 m50i - Dravit grey
2005 evo 8 (current) built 2.3 488/409 mustang dyno Old stable mates - 87 325i, 88 m3, 90 m3, 97 m3 4dr, 04 325xi, 91 gmc Syclone, 08 335xi, and 13 x3 35i msp 2014 x5 50i msport |
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03-26-2018, 08:33 AM | #61 | |
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Car definitely was a blast to drive. |
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03-26-2018, 08:49 AM | #62 |
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Thanks for the feedback pits200 CT335xi. I must say I'm really surprised that no one is worried about adding 140+ hp to a stock N63TU.
Yes, that is true about my dyno numbers. I was being conservative when I said 140+ at the crank. I definitely wouldn't be beating on it non stop, but I have seen 15psi of boost during moderately heavy accelleration (not to the floor) on the highway. I'm thinking that if a flash allowed, say, 20psi, you wouldn't have to be beating on it to see those boost levels and the added engine stress that comes with it. I guess I'm just being overly conservative with this notoriously troublesome engine.
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03-26-2018, 09:04 AM | #63 | |
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03-26-2018, 09:14 AM | #64 | |
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03-26-2018, 10:15 AM | #65 | |
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Question: are you able to log in and check what maps they have for 2017 X5 35i? I emailed them and the guy couldn't give me a straight answer. It sucks that you can't see the maps before you buy. I dont feel like buying anything blindly. If you get a chance, please check on the maps. Thank you very much |
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03-26-2018, 01:24 PM | #66 | |
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