2015 BMW 435i

Is the BMW F30 chassis the next hot track day car? We intend to find out.

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2015 BMW 435i

Latest updates

Dec
18
GRM+ | Dec 18, 2024 | BMW | Data Analysis | BMW 435i
Why was I slow? Let’s see what the data says.

Using some simple data analysis, we identified the patterns slowing us down on track–and developed a plan to fix those bad habits.

Dec
15
GRM+ | Dec 15, 2024 | BMW | Track Night in America | BMW 435i
What being on track can tell you that a dyno won't

While a dyno is a great tuning tool, going on track provides even more information. We compare three different tunes–each one adding a little more boost–during an SCCA Track Night …

Dec
12
Dec 12, 2024 | BMW | FIRM | BMW 435i | MHD Tuning
How an easy transmission flash made our BMW 435i even faster

The increase in power from recent upgrades helped our BMW 435i achieve faster laps, but could we go even faster by reprogramming the transmission?

Dec
11
Dec 11, 2024 | BMW | BimmerWorld | BMW 435i | Blackstone Labs
Is the engine in our BMW 435i healthy? What oil analysis can tell us

To get a baseline of our BMW 435i's engine's health, we not only changed all the fluids but also sent oil samples out to Blackstone Labs for analysis.

Dec
08
GRM+ | Dec 8, 2024 | BMW | Time Trials | BMW 435i
How we prepped our BMW 435i to excel on the street and the track

Despite the near-constant siren song of the Sawzall, here's our plan to ensure our BMW 435i remains a true dual-duty track car and daily driver.

Nov
25
GRM+ | Nov 25, 2024 | BMW | BimmerWorld | BMW 435i | M235i Racing
How we cured our BMW 435i oil pressure problems

Our BMW 435i was showing drops in oil pressure under braking on track. The solution? BimmerWorld pointed to a setup used in the factory-built M235i Racing.

Nov
23
GRM+ | Nov 23, 2024 | BMW | BMW 435i | Vinyl Stickers
How to properly apply vinyl stickers to a car

Applying vinyl stickers to your car? Here are a few tips to make sure they look good and don't come off.

Nov
13
Nov 13, 2024 | BMW | BimmerWorld | oil pressure | BMW 435i
Do we have an engine oiling problem with our BMW 435i?

What's causing our BMW 435i to lose oil pressure under certain conditions on track? We head to BimmerWorld for some expert insight on the N55 engine.

Nov
09
Nov 9, 2024 | BMW | BimmerWorld | Redline Bimmer | 435i
Cheap insurance: Why our BMW received a crank seal guard

Some upgrades make a car faster. Some, as is the case for our BMW 435i, prevent potential problems.

Nov
08
GRM+ | Nov 8, 2024 | BMW | BimmerWorld | roll bar | Safety | BMW 435i | JP Marketing LLC
Balancing performance and safety without ruining street manners

While a car's stock safety systems work well for the street, the same thing can't be said for track use. That's why we're upgrading the safety systems in our BMW …

Nov
04
Nov 4, 2024 | BMW | SCCA | SCCA Time Trials Nationals | BMW 435i
Third at the Time Trials Nats: How we intend to get even faster

What upgrades are in store for our BMW 435i? The answers are in the data we collected during the 2024 Tire Rack SCCA Time Trials Nationals.

Oct
31
Oct 31, 2024 | BMW | 435i | Serpentine Belt
Surprise: Our BMW 435i broke a belt during its first track day

Not even two laps in, our BMW 435i project car broke a serpentine belt. What caused it? How will we prevent it from happening again? Read on.

Oct
29
Oct 29, 2024 | BMW | SCCA | Time Trials | Project car | 435i
Can our BMW 435i run with the GR Corolla or Civic Type R?

To ensure our BMW 435i is competitive in its SCCA Time Trials class, we compare its track data against the data from another key competitor in the class.

Oct
28
Oct 28, 2024 | BMW | SCCA | SCCA Time Trials Nationals | Time Trials Nationals | BMW 435i
Project BMW 435i podiums at the Tire Rack SCCA Time Trials Nats

We have focused primarily on safety and reliability with our BMW 435i. However, we found out at the 2024 Tire Rack SCCA Time Trials Nationals it's also fast, too.

Oct
22
Oct 22, 2024 | BMW | SCCA Time Trials Nationals | BMW 435i
Readying our BMW 435i for its first big test: Time Trials Nats

Although we had to improvise thanks to back-to-back hurricanes, here's how we prepared our BMW 435i project car for its first big outing: the 2024 SCCA Time Trials Nationals.

Oct
08
Oct 8, 2024 | BMW | BimmerWorld | 435i | Charge Pipe
Improving our BMW 435i's durability by upgrading the charge pipes

Not all upgrades have to improve performance. Some, as is the case with our 435i and its charge pipes, improve durability both on and off the track.

Oct
01
Oct 1, 2024 | BMW | SCCA | Time Trials | 435i
How to upgrade suspension without compromising comfort

For our BMW 435i project, we really wanted to build a dual-duty car–and to mean it this time–so we're prepping it for the Sport class in the SCCA Time Trials …

Sep
28
Sep 28, 2024 | BMW | BMW 435i
Video: How to fix the oiling issues found in the BMW N55

What you need to know about BMW N55 oiling issues and how to solve them.

Sep
05
Sep 5, 2024 | BMW | BimmerWorld | alignment
What it took to give our 435i an alignment before SCCA Time Trials

Before our BMW 435i's first big event, we first needed to make sure everything was pointing in the right direction by giving the car an alignment.

Sep
02
Sep 2, 2024 | BMW | BimmerWorld | Rain | VIR | James Clay | BMW 435i
How to go fast in the rain? A little local knowledge can help.

How did our BMW 435i perform in the rain? Time to check the data.

Aug
02
Aug 2, 2024 | BMW | BMW 435i
How did our BMW 435i’s new oil-control measures work at Daytona?

Did all our work at BimmerWorld fixing our BMW 435i's oiling issues pay off? Ride along with us at Daytona to find out.

Aug
01
Aug 1, 2024 | BMW | SCCA | Track Night in America | TNIA | BimmerWorld | BMW 435i
Live Thread: Fresh from BimmerWorld, our BMW 435i takes on Daytona

Fresh from BimmerWorld, we're taking our BMW 435i to an SCCA Track Night in America at Daytona to ensure its new oil system and fresh rod bearings work as intended.

Mar
09
Mar 9, 2024 | BMW | SCCA | Time Trials | BimmerWorld | VIRginia International Raceway | Project car | Time Trials Nationals | Live Thread | 435i
Live Thread: BMW 435i takes on SCCA Time Trials National Tour

We're taking our BMW 435i project car to its first big event: SCCA Time Trials National Tour at Virginia International Raceway. Follow this thread for live updates.

Mar
06
Mar 6, 2024 | BMW | SCCA | BimmerWorld | 435i
Live Thread: Prepping our 435i for SCCA Time Trials with BimmerWorld

Follow this thread for live updates as we prepare our 2015 BMW 435i project car for its first SCCA Time Trials National Tour event at Virginia International Raceway.

Feb
26
Feb 26, 2024 | BMW | BimmerWorld | Engine Oil | Red Line Oil | Oil Change | 435i
Treating our BMW 435i to its first taste of fresh fluids

Before we drove our new-to-us BMW 435i any further, we put it up on the lift and replaced its engine oil, transmission fluid and differential lubricant.

Jan
30
Jan 30, 2024 | BMW | 435i
Why did we pick an out-of-warranty BMW as our next project car?

Although some might see an out-of-warranty BMW as a siren song, we see it as our next great track car.

Jan
06
Jan 6, 2024 | BMW | 435i | F30
Live Thread: We’re picking up our new 2015 BMW 435i project car

Meet our latest project car, a 2015 BMW 435i.

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