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06-02-2022, 02:09 PM | #375 |
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You mean a tune to enhance the sound, but not alter performance at all?
How would that even be possible? And if currently no tune, the Alpine performance tune that does impact performance may perhaps be quantified by the factor of the plenum? |
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06-02-2022, 02:10 PM | #376 |
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06-02-2022, 02:14 PM | #377 |
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Wondering the same thing too... Assuming the volume of air within the plenum increases, and the tune can be done to effectively manage the inflow of the air in the plenum, shouldn't the engine see increase in power? Maybe not a significant increase but additional few HP/Torque at least?
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06-02-2022, 02:44 PM | #378 |
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Indeed, increased fueling for larger volume of air should impact performance. I'll reach out to Alex too to get his opinion as well.
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06-02-2022, 06:19 PM | #379 | ||
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06-02-2022, 07:34 PM | #380 |
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I wonder what can possibly be done to make it louder, a comparison of this before/after would be cool too.
Per the Haimus site, there are more gains with a tune. Either way, I'll be logging my engine data first using a logger, and sending that file to Alex in order to get the most efficient tune possible. I'm #20 on the list for the plenum though, so once I get to dynoing it, everyone else would have already had theirs installed… so, anyone getting it now should hopefully throw it on a dyno during install. |
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06-03-2022, 10:06 AM | #381 | |
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06-03-2022, 12:29 PM | #382 | |
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I figured the logs would help more than just the mod list. |
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06-03-2022, 12:58 PM | #383 |
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He doesn't request it, it's optional. You can tell him which mods you have, and he'll adjust accordingly, or you can send the log file.
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06-03-2022, 01:27 PM | #384 |
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06-03-2022, 09:48 PM | #385 | |
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There are some cool looking virtual dyno softwares out there too, which can test your horsepower and torque, you just need to find a long, flat road to get accurate results. |
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06-06-2022, 02:49 PM | #387 |
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Has anybody installed theirs yet? I installed mine last week, and it sounds so good! Makes you wanna redline everywhere.
I honestly wasn't expecting too much, but it's quite noticeable when stepping on the gas and then it just howls to 8300 rpm. At idle and low rpm's the exhaust note got a tad louder which was unexpected. Btw, I'm running test pipes and stock muffler. It's a great mod for sure, no regrets. Can't tell if there are any power gains, but the CF plenum is definitely lighter than OEM, probably by a good 4-5 lbs. |
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06-06-2022, 04:01 PM | #389 |
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06-06-2022, 04:05 PM | #390 |
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Expecting 4 to arrive from Haimus later this week/early next week (2 Logo, 2 blank) I'll be sending these out as they come.
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06-06-2022, 04:20 PM | #391 | |
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The intake tubes are vertical stacks (instead of curved trumpets). Overall inner volume is increased. Very different from what BMW engineers designed for this engine. It's significantly different and more unique than just another "part." |
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06-06-2022, 04:22 PM | #392 |
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I hope my contentions aren't misperceived as skepticism. I believe these changes are well thought-through. Build quality looks amazing… Hence, I've made the purchase.
I'm just as excited as everyone else, but I'm just adhering to the 10th Man Rule on this, so think more dyno data is imperative. |
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06-06-2022, 04:51 PM | #393 |
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06-06-2022, 05:26 PM | #394 |
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… assuming it's a gain, and not a loss.
Again, more regarding 10th Man Rule principle to reassure a novel design, rather than skepticism. |
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06-06-2022, 07:10 PM | #395 |
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To be fair, we all want to see dynos but I agree most of us don't have time or access to do it push come to shove. I really wanted to dyno my car after I had a Harrop blower installed, and I wasn't going to go out of my way to go to another shop before and after the installation, I put my foot down and really liked what I felt. Now with this plenum, I'd run for the hills. Dropping that kind of $$$ on intake noise (no HP) is beyond comprehension. Maybe no dyno because in this case ignorance is bliss.
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06-06-2022, 07:30 PM | #396 | |
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I don't want to sound like a broken record, I just think given this particular design/dynamic warrants dyno runs. I was about to pull the trigger on a CarboProject plenum when I saw this GB, and glad I went with Haimus. |
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