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BMW 3-Series (E90 E92) Forum
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500ish hp goal - What mods should I do?
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10-13-2024, 02:41 AM | #45 | |
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How long does it take to make a tune good enough to drive the car normally? Could I ask how many miles you have on your engine and is yours a manual or auto? Those are good numbers. Last edited by suspect; 10-13-2024 at 06:16 AM.. |
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10-13-2024, 07:57 AM | #46 | |
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Jb4+MHD you dont need to have a sorted out tune to enjoy the car. Out of the box it's fine for many different setup , check all the base maps here : https://www.jb4tech.com/forum/model-...end-flash-maps Then once you've flashed the MHD base map, you can switch maps on the JB4 or do a custom one. However the JB4 has a limit, which is where I am now. I need someone to edit the .bin file and reflash with MHD to go higher with the JB4 |
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10-13-2024, 08:56 AM | #47 |
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I’ve been running MHD Stage 2+, 91 octane with E30 and have been happy with that. I might have junk 93 gas in my area or the tune is aggressive and so the E30 is needed to clear up my timing corrections. I ran a 12.16s quarter mile at 113mph so I’m likely around 400 whp. I have plans on upgrading to 17ts at some point to get me to 500whp. Brand called ViV auto parts, China turbos but most reputable ones from what I’ve seen.
If you want to tune yourself with MHD you can use TunerPro which is an open source tuning software (free). If you want a custom tune you could reach out to Ken at Wedge Performance. He can perform an e-tune since you’re over in Italy (OP). |
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vmqxdv3.00 |
10-13-2024, 09:02 AM | #48 | |
Italian Boy
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10-13-2024, 11:58 AM | #49 |
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I don’t blame you, you’re not wrong for worrying about that. If you choose a tuner that has tuned many N54s especially with 17ts the risk is much lower since they’ll be starting you off with a known map that works. You also don’t need to rip it when you load their map. I would actually start with half throttle pulls and work your way to full throttle while reviewing the logs of each pull to ensure things look healthy.
From my understanding Ken literally only tunes N54s. There are also other tuners out there with N54 experience but I have only worked with Ken and my experience has been good. |
10-13-2024, 12:55 PM | #50 | |
Italian Boy
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10-14-2024, 01:00 PM | #51 |
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I've found this video, where the guy breakdown what is needed for a 335i to be reliable. Is he right about everything?
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10-14-2024, 01:12 PM | #52 | |
Colonel
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- the whole cooling system : water pump, thermostat, radiator, hoses, flanges, pipes, expansion tank. - acc belt guard - power steering pulley if you're RWD. - metal pcv - catch can - hpfp Most item can be found cheap, but the injectors and hpfp. i.e. charge pipe, cc, belt giard and PCV are just fine from aliexpress. However, you can wait for the injector to fail to change it. I know some folks still running index 1 and index 5 for years. They will fail, but mileage may varies. |
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vmqxdv3.00 |
10-14-2024, 01:31 PM | #53 | |
Italian Boy
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For the injectors im currently looking for 335i’s that already have index 12 and other parts replaced like the water pump, gaskets etc. Last edited by vmqxdv; 10-15-2024 at 06:21 AM.. |
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10-15-2024, 07:21 AM | #54 | |
Colonel
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ali express catch can are the exact same as the expensive one for well known brand. belt guard is a metal plate. and it worked in my case, saved my engine. charge pipe, is a metal pipe. pcv is a metal part with a rubber oring. So the risk is low to none. However, everything else : FCP or rockauto. (or oc your local german part reseller) DO NOT buy injectors on ebay/FB market /ali. Knock off exists. Last edited by oVeRdOsE.; 10-15-2024 at 07:40 AM.. |
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10-15-2024, 12:06 PM | #55 |
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VRSF are absolutely fine and have been for years. Some of the very early ones had fitment issues but they've been spot on for ages now and s the most common go-to brand for DPs.
ARM kind of filled the niche that VRSF used to have, they're a bit cheaper and most on a budget run those now. AR are the absolute best and can be found used on here all the time. |
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vmqxdv3.00 |
10-16-2024, 10:11 AM | #56 |
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I've found this supplier on Alibaba that seems "verified", and it has different turbos for the n54 (link) but I can't find the differences between one and another.
Thank you in advance!! |
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10-16-2024, 11:05 AM | #58 |
Italian Boy
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From what I understood the VIV turbos are considered the best on eBay, do you recommend those?
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10-16-2024, 11:24 AM | #59 | |
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A common theme with them though is that the wastegate actuator is too tight and needs to be adjusted (loosened). You'd want to at least compare to your stock turbos and try to mimic how that actuator moves. If you slap them on without adjusting the wastegate actuator you'll run into overboost or underboost issues as the wastegate actuator isn't able actuate with the vacuum provided by the car's vacuum pump. Last edited by konstat; 10-16-2024 at 11:43 AM.. |
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vmqxdv3.00 |
10-16-2024, 11:26 AM | #60 | |
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