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BMW 3-Series (E90 E92) Forum
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Pure Turbos N55 single turbo upgrade
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12-30-2014, 02:22 PM | #1827 | |
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135i N55 / KW V3 / MHD Flash / Tons of grip mods / CP-E charge pipe / CP-E 7" FMIC
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12-30-2014, 06:26 PM | #1828 |
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01-01-2015, 12:49 PM | #1830 | |
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01-05-2015, 02:15 PM | #1831 |
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What's the difference between stage 1 and stage 2? Is it worth the wait if you only want to run pump gas?
(Sorry if this was answered but i don't have the time to go through 80+pages.) |
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01-05-2015, 11:34 PM | #1832 | |
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![]() Stage 2 is currently in development. If you buy stage 1, Pure will give you full credit when you upgrade to stage 2. |
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01-06-2015, 12:24 AM | #1833 | |
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"A LPFP upgrade is not required for the N55 Stage 1. Our 335i is still running the stock LPFP. The Stage 1 upgrade is great for 91 pump. It will unlock a lot of top end power you have been missing. The stock turbo runs out of steam quickly after 5k rpm. We did a 91 pump back to back dyno with our 335i a while back. You can find that info on the original #1 post of our Stage 1 thread. The stage 2 turbo will require increased octane to enable full potential of the turbo. The current N55 fuel system can't flow enough fuel volume to keep up with a Stage 2 turbo, so a meth kit will also be required. In the near future, HPFP upgrades will be available." |
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01-06-2015, 01:18 AM | #1834 |
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01-06-2015, 01:23 AM | #1835 | |
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So i take it that this actually doesn't exist considering their response? http://hpfpupgrade.com/Products/Show/Bmw/N54/N54-55+Fuel+System+Upgrade |
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01-06-2015, 01:59 AM | #1836 | |
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The fuel system consists of 2 fuel pumps. 1 for the low pressure side (it is located in the tank) and 1 for the high pressure side. If you run only 93 or 91 octane fuel you don't require any fuel pump upgrade nor meth system. However if you want to get the maximum out of stage 1 up to 30/40% E85 can be mixed with 91/93 and your fuel system will still be ok. I recommend you check out this company if you want to upgrade your fuel system: http://www.fuel-it.biz --> Currently they offer stage1/2 upgrades for the low pressure side and they are working on an upgrade for the high pressure side as well for our cars. I have the fuel-it stage2 LPFP on my car and am very happy with it. When they release the HPFP upgrade I will get it as well. This will allow me to unlock the full potential of the soon to be released stage2 turbo upgrade. |
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01-06-2015, 08:39 AM | #1837 |
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You could get stage 1 now and upgrade it to stage 2 later if you want to.
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01-06-2015, 10:35 AM | #1838 | |
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In a perfect world, I would like to run pump gas and have max performance. I'm pretty ok with mixing in e85 as their is a pump close to where i live. It would just be a pain making sure I am always pouring in the right mix. I don't want to do a meth setup at all.
Any suggestions on what an ideal setup should look like for those first two scenarios? Quote:
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01-06-2015, 10:36 AM | #1839 |
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01-06-2015, 11:15 AM | #1840 | |
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01-06-2015, 02:26 PM | #1841 | |
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01-06-2015, 06:02 PM | #1842 |
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Why not run the stage 2 turbo with 91 or 93 octane on one map, and with another more aggressive map use octane booster ala race-gas.com? Would this not potentially provide equivalent results as a meth spray?
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01-06-2015, 07:15 PM | #1843 |
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I had the BMW PPK tune before I got my tune. I did not notice much difference between the PPK and Cobb stage 1 sport (my starting point with PTF as I had stock engine and 91 octane gas), but I got a definite and significant power boost going from Cobb stage 1 to PTF custom tune.
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01-12-2015, 03:03 PM | #1845 |
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01-12-2015, 03:58 PM | #1846 |
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01-16-2015, 03:23 AM | #1847 |
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01-16-2015, 03:27 AM | #1848 |
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I was able to do some PBOX testing earlier this week. In preparation for stage2 arrival to have some comparison data.
100-200kph : 8.1 seconds 60-130mph: 9.45 seconds I guess I could do that a little bit faster now that I have the recaro pole position seats installed (55 lbs savings) + liteblox lightweight battery (50 lbs savings) + rear bench removal (55 lbs savings). If weather permits I will do a retest and hope for 100-200kph in 7.9ish and 60-130mph in 9.2ish? |
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