[RoughKnight]

Originally Posted by suspenceful

Hey, thanks!

I can't wait to try the xHP trans tune. I've heard great things about it.

Manual mode is night and day in that thing. Save your money and just buy the stage 3, I bought the full pack thinking I would switch them on the daily or weekly... I've tried all of them and have to say the stage 3 is the one (aside from being updated the "most") that gives the best performance while keeping mostly the stock D functionality. Manual mode throttle downshift blips are whatssssup lol

[madbim]

Originally Posted by RoughKnight

Manual mode is night and day in that thing. Save your money and just buy the stage 3, I bought the full pack thinking I would switch them on the daily or weekly... I've tried all of them and have to say the stage 3 is the one (aside from being updated the "most") that gives the best performance while keeping mostly the stock D functionality. Manual mode throttle downshift blips are whatssssup lol

This ^

I purchased the pack as well; installed stg3 day 1, it was perfect and have no interest in trying the others. Save your money and just go with the stg3 tune. It is a excellent tune for DD duty and performance driving.

[suspenceful]

Originally Posted by RoughKnight

Manual mode is night and day in that thing. Save your money and just buy the stage 3, I bought the full pack thinking I would switch them on the daily or weekly... I've tried all of them and have to say the stage 3 is the one (aside from being updated the "most") that gives the best performance while keeping mostly the stock D functionality. Manual mode throttle downshift blips are whatssssup lol

Originally Posted by madbim

This ^

I purchased the pack as well; installed stg3 day 1, it was perfect and have no interest in trying the others. Save your money and just go with the stg3 tune. It is a excellent tune for DD duty and performance driving.

Thanks for the tips guys, xHP Stage 3 once I get the app and no looking back!

[suspenceful]

Not a huge update, but I installed some LUX H8 LED angel eyes. Upgrading the angel eye bulbs are one of my favorite appearance modifications you can do for these cars. They’re relatively cheap, easy to install and greatly improve the look of any BMW.

I have the same set in my 135i and they've been holding up great for years. Very white, very bright, I wouldn't go with anything else. For anyone interested in the process, I wrote a step-by-step installation guide with more photos, etc.

Check out my blog post: https://bmw335i.com/2019/05/31/how-t...35i-330i-328i/

[HKD126]

What are your powers goals and plans as far as mods go for this car?

[suspenceful]

Originally Posted by HKD126

What are your powers goals and plans as far as mods go for this car?

FBO, inlets, see if I can hit 450whp/500wtq on stock turbos (~22psi).

Then maybe add some nitrous. Strip out the car to save weight.

[HKD126]

Originally Posted by suspenceful

FBO, inlets, see if I can hit 450whp/500wtq on stock turbos (~22psi).

Then maybe add some nitrous. Strip out the car to save weight.

Just on 93? What will you use to tune? Very interested to see the results.

[suspenceful]

Originally Posted by HKD126

Just on 93? What will you use to tune? Very interested to see the results.

No, I'll use an ethanol blend of E40-E60. Going to use JB4.

I've done this once before with my 135i before going single turbo. Loved that setup, trying to replicate it here again.

[HKD126]

Do you think the stock turbos will last long at that power and mileage?

What are your plans for suspension and braking?

[suspenceful]

Originally Posted by HKD126

Do you think the stock turbos will last long at that power and mileage?

What are your plans for suspension and braking?

I'm not sure, we will find out. The stock turbos in my 135i never gave up at those power levels and they had 120k on them.

Suspension and brakes won't need to be touched for the time being. Again, this is a budget build. If a part fails, it will be replaced.

[suspenceful]

This car came with a JB4 installed so I quickly added a bluetooth connect kit. This allowed me to update the very out of date firmware and gives me the ability to log and monitor everything from my phone. I have the same kit in my 135i and I love it.

I also stumbled upon a pretty cool app called Log Dyno. It allows you to upload a log and spits out a dyno graph. I was skeptical about how accurate it would be but it seems very close. As long as you enter the proper data and settings, it works very well. I filmed a complete video showing exactly how to use the app if anyone else is interested:

I did one log in map 0 (stock), and one log in map 1 with a small tapered boost curve.



The dyno graph exactly matches the boost curve and the numbers seem on par with other results. In my first-hand experience, the stock numbers are dead nuts on with wheel horsepower results from actual dynos as the N54 is rated at 300/300 crank horsepower.

For anyone interested in trying it out, I'd be curious to see others' results:

• iOS download
• Google Play download

That being said, I bought some used index 12 injectors for the car because the current original injectors are leaking. Bad idle on cold start, wet plugs, black smoke, etc. Going to do a DIY on these soon... then the modding begins.

[suspenceful]

As I begin to increase the boost in this car, the first thing I want to address is the charge pipe. The stock plastic charge pipe is prone to cracking and breaking with increased pressure. Since I don't want to be left stranded on the side of the road, I decided to upgrade the charge pipe right away.

There are a ton of options on the market for charge pipe, blow-off valves and diverter valves, but I chose the BMS aluminum charge pipe with a TiAL BOV. In my opinion, this is the best bang-for-your-buck option available. It fits great, has a durable finish, two NPT bungs, includes all the proper hardware and a genuine BOV.

If you're starting to mod your N54, I wrote a detailed article about what to look for when shopping for a charge pipe. Check it out here: The Ultimate BMW N54 Charge Pipe & BOV Guide

I also filmed a video demonstrating the whole installation process with a few tips/tricks along the way.

I'm very satisfied with my choice and don't think there is a better option at this price point. No more worrying about the stock pipe exploding, plus the sound of the TiAL valve is perfect. Now I can continue modding this car!

[suspenceful]

I haven't done much on this car recently because it's been my winter daily driver, but that's about to change. The radiator blew on it, forcing me to push it into the corner of the garage while I drive my new car. I added my first ///M to the garage

https://f80.bimmerpost.com/forums/sh....php?t=1702220