what parts do u need to get 500 horsepower out of a turbo b18c5
The B58 is the successor to the N54 and N55 engines, both of which were highly tune-able and able to make lots of horsepower with only a handful of supporting mods. The N54 takes the block in regards to horsepower capabilities, but it had many engine bug as a consequence. The N55 platform was made more restrictive from a tuning perspective in order to ameliorate engine reliability, which worked well.
The B58 is even so in its early on stages of being tuned, but information technology appears to stack up somewhere in betwixt the N54 and the N55. With that being said, every bit the engine is notwithstanding very new in that location are currently a few limitations that are holding the engine back until the aftermarket companies and tuning shops can break past them. The two main limitations are the DME/ECU and fueling. Regardless of these limitations, the B58 is capable of making 500hp, with 450 or so to the wheels with only a handful of supporting mods.
Pre-Tuning Must Do's: Spark Plugs and Ignition Coils
The B58 has pretty good ignition from the factory, simply unless your plugs and coils are less than 20,000 miles one-time, we recommend replacing them. To create more horsepower, the car needs to pump more gas into the engine to create the boosted combustion. Quondam spark plugs get worn down and become less constructive, resulting in extra gas being left in the combustion sleeping room which tin can so pre-detonate and crusade misfires.
If you are only running a JB4 tune and other bolt-on mods then we suggest replacing the spark plugs with OEM plugs. If you are planning on upgrading your turbos, then we recommend using the one-step colder pick. Always stick to the OEM ignition coils.
- OEM B58 Spark Plugs: for all tuned and FBO cars running stock turbos
- 1-Step Colder Spark Plugs: for all B58'south with upgraded turbos, notation these are the same i-step colder plugs used by the N55
- OEM B58 Ignition Coils: use these coils regardless of the spark plug you are using
Mod List for 500HP
1. BMS B58 Performance Air Intake
An upgraded intake allows your car to bring more air into the engine which creates more than horsepower, faster turbo spool, and an awesome sound. The extra air flow is crucial for creating more pressure inside the engine and as well maximizing horsepower gains from additional mods. We consider this a necessity if you are going to use a tuner such as the JB4 on your B58. The sound fabricated by the intake makes it worth it by itself.
There are a handful of manufacturers out there and all intake systems are more or less the same. We recommend BMS because they are one of the all-time in the tuning game.
Read our full-guide on B58 intakes hither: BMW B58 Upgraded Operation Intake Guide
Toll: $179 + Aircraft
Horsepower/Torque Gains: 10-20whp / fifteen-20tq
Buy the BMS Intake here
Note: we do receive a small % of the sale when you buy information technology through Amazon, which helps pay for the cost of keeping this website upwards and helps recoup us for the hours and hours we spend on each postal service nosotros write. The shipping on Amazon is really cheaper than buying on BMS' website and then don't be afraid to assistance us out 🙂
ii. BMS JB4 Piggyback Tuner
Burger Motorsports JB4 tuner is the most popular tuner used on both the N54 and N55 platforms, which is why nosotros recommend it for the B58 platform. This is a piggyback tuner, verses a flash tuner. The wink tuner requires the ECU to be overwritten and information technology wasn't until late 2018 that tuning companies were able to crack into the DME and ECU. With that being said, all the wink tuner options are relatively new to the market and not fully proven.
As boosted tuning options open up for the B58, we will update this post. Nevertheless, even on the N54 platform which has a handful of piggyback tuners, flash tuners, etc. we still recommend the JB4, so I don't anticipate our recommendation will change here regardless of new options.
Price: $529
Horsepower/Torque Gains: lx-80whp / xl-60tq
Purchase the B58 JB4 Here
3. Catless Downpipes - VRSF
With an intake and tune, your B58 will be bringing significantly more air into the engine. Which means, at present we demand to be able to get all of that air out. If the air can't leave as fast as it comes in, dorsum pressure is created. Back force per unit area is really adept for naturally aspirated cars, but information technology is terrible for turbocharged cars. The factory downpipe has a catalytic converter on it, which for emissions purposes, is very restrictive. By replacing the restrictive OEM downpipes with catless downpipes, we eliminate all of the back pressure and create more horsepower and boost.
I would notation a few things here. Starting time, but replacing your downpipes will not brand your car crazy loud. It will make a slightly deeper tone, but its not very noticeable from the front end of the car and definitely not noticeable inside of it. Your wife won't fifty-fifty know y'all did anything to it! Secondly, we but recommend a full exhaust system if you really care virtually the sound of the car. A full exhaust system will run you more than this list of mods and will go you probably 5 boosted horsepower. Full systems aren't worth information technology unless you want the loud noise.
VRSF is the best residual of toll and performance. Zach and I run the VRSF downpipes on our N54's and they are great. For our European readers, we recommend the Masata Catless Downpipe which offers the same performance benefits as the VRSF pick which is hard to find overseas.
Read our full guide on B58 downpipes here: BMW B58 Upgraded Downpipe Guide
We strongly recommend catless, just high-flow catted is nonetheless better than stock if y'all are concerned about emissions testing.
Price: $299
Horsepower Gains: 25-30whp with the JB4 + faster turbo spool
4. Meth Injection
Meth injection is the key to making 500hp at the crank and 450whp. Meth injection, referred to equally WMI (h2o/meth injection), sprays a mixture of water and methanol into the intake air only prior to it entering the combustion sleeping room. The spray reduces the air temperature and likewise boosts the octane of the gas entering the combustion sleeping room. Overall effect is more combustion aka more power. On the N54 and N55, a chargepipe with a meth bung would be needed, only the chargepipe on the B58 is a pain to remove, so BMS built and adapter which mounts up to the throttle body.
A large limitation of the B58 is fueling. The only way to get effectually this limitation is through the addition of meth injection. With the in a higher place mods, merely no meth, you will probably push approx. 400-415whp on 93 octane pump gas. Meth volition get you to the 450whp mark.
Toll: Depends but approx. $500
We recommend running the BMS kit which you tin find all about here: B58 BMS Meth Injection Kit
Also, read this thread from the owner of BMS: https://www.n54tech.com/forums/showthread.php?t=37053
What nigh Intercooler (FMIC) Upgrades?
If you lot were reading through our N54 or N55 modern list, you would find an upgraded intercooler on the list. Intercoolers absurd the air prior to it entering the engine, which increases the oxygen content of the air ultimately resulting in more than combustion and power. The stock B58 intercooler is definitely good, and better than the N55 and N54 ones, but until we see B58's breaking past the 600whp marker, nosotros won't be sure if upgraded intercoolers will be needed.
There are virtually no options on the marketplace since the stock intercooler is air to water cooled and integrated into the intake manifold. Manufacturing a new intercooler would require a new intake manifold which would be very expensive both to develop and for the finish consumer. It's safe to say that there won't be whatever FMIC mods coming out quite nevertheless.
How do I make 500 Bike Horsepower?
Right now the but way to brand 500whp is with an upgraded stage two turbo system.
Source: https://bmwtuning.co/build-500hp-b58/
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