The Evolution of Flex Fuel for the E46 M3: The Superiority of True ECU Flex Fuel Control
Published: 06-05-23 09:29:00
The Evolution of Flex Fuel for the E46 M3: The Superiority of True ECU Flex Fuel ControlWe're on the brink of a evolution in e46 m3 performance, and it starts with True ECU Flex Fuel for the E46 M3, an advanced fuel system recently released by our team. This ground-breaking innovation takes the concept of fuel control to a whole new level by controlling not only fuel injection but also ignition timing. In contrast to traditional fuel controllers like APE and AFD flex fuel piggy backs, our True E...
Gen 3 TCU Tuning, NOW AVAILABLE at 22RPD
Published: 03-28-23 10:22:08
We are excited to introduce our Gen3 Transmission tuning for BMW G-series and Supra vehicles. Our tuning service offers significant improvements in shift performance, drivability, and acceleration by optimizing torque limits, shifting characteristics, torque converter changes, launch settings, and more.At 22RPD, we pride ourselves on our technical expertise and innovative solutions. After hundreds of hours into this development we feel ready to release it to the public. We use XHP's interface to...
Ford 8.8 kit V4!
Published: 01-16-23 10:00:38
We are always in the pursuit of improvement. We want to make good better, and every time we reorder our products we push to find small ways to improve them.We spent a ton of time making our original F8.8 subframe as good as it can be but there's a certain level of experience that comes with selling these kits and helping install them for a couple years. We also took to the community and asked for any improvements they saw. Together we found a few small ways to make it better, easier, and more co...
Supercharged N52 E90 is back for 400whp!
Published: 10-11-21 08:00:00
A few months after we let our 350whp 9psi supercharged N52 out into the wild, the owner is back for more! This time, we are swapping in an N54 intake manifold, and a slightly smaller 3.4" supercharger pulley resulting in a peak boost pressure of 11psi. The benefits of the N54 manifold stem from its simple, large, and boost oriented design, the manifold should outflow the original 3-stage intake system whenever there is positive pressure.Take a look at our last session with this car to see what i...
Classic with a modern touch: E30 325ix, Metric Mechanic M20 3200 Sport/Rally engine, & MegaSquirt MSPNP Gen2
Published: 05-21-21 09:00:00
We had the pleasure of tuning this beautiful 1988 E30 325ix. Initially, it came in running a stock ECU with Miller W.A.R. hardware and tune, however the performance and drivability of the car was not up to par for the owner. This was unacceptable, because we know that these M20 motors are capable of a surprising level of performance for their age and design. To make the deal even sweeter, this car is equipped with a 3200cc Rally/Sport motor built by Metric Mechanic!After being thoroughly re-engi...
S54 Turner Motorsport Airbox On The Dyno!
Published: 05-14-21 09:00:00
The S54B32 engine from the E46 M3 has long been enjoyed by enthusiasts for its ability to thrive at high RPM's, as well as unleash usable torque across an impressively wide RPM range.Â The key contributors to this performance are:Infinitely variable double VANOS with over 2x the range of the M/S5x design!Individual throttle bodies with 3x the total cross sectional area over M/S5x!Impressive cylinder head port design and mechanical strength!Its no surprise that there is much more poten...
750whp N54 Sleeper 335i
Published: 04-26-21 15:00:00
The BMW 335i has been an increasingly popular platform for enthusiasts, with its creature comforts, daily drivability, and growing aftermarket support. It would be wise not to underestimate any N54 powered craft, because even lightly modified specimens are capable of unleashing over 400ft-lb with any provocation.Amongst the herd, we are occasionally confronted by an N54 that is so powerful, it makes you wonder why it isn't propelling an aircraft through the atmosphere. There have been plenty of ...
LS3 Swapped E36 M3: On the ground and running!
Published: 12-23-20 14:00:00
E36 LS3 Build
Our LS3 powered E36 M3 project is finally on the ground, running, and ready for some more paint!We are using an LS1 PCM with a customized engine harness to run the LS3. This requires swapping some sensors, and using the 24x tooth LS1 crankshaft pickup, but allows us to retain the simplicity of the LS1 operating system/emissions, and retain cable driven throttle.This car will be receiving a custom widebody using OEM fender flares, for a clean look and much more tire capacity than factory. Ul...
E36 318Ti Build: Suspension
Published: 12-17-20 11:00:00
E36 318Ti Build
There are many ways to make a car fun to drive, but in my opinion, a proper suspension setup is the most important thing to focus on before anything else. If you want a car that feels legendary to drive, the suspension needs to respond exactly how you desire under aggressive driving conditions. That means using the proper components and adjustments for your power level, driving style, tire compound, budget, etc. Quite a few vehicles are out there with heavily modified power-trains, but stoc...
350Whp N52 and how we got there!
Published: 01-12-21 11:00:00
Recently, we had a 2007 328i dropped off, featuring a centrifugal supercharger setup. After coordinating with the owner, we came up with a plan to spice things up a bit for this non-M underdog.A bit of back ground on the car:ESS supercharged 5.5psi3-stage IntakeF30 Sport BBKM3 brake boosterKoni nonadjustable struts Modified Akrapovic exhaustWe took the car and immediately baselined it. The mighty N52 managed 271 Whp and 237 wtq. A relatively respectable number on paper considering these cars ...
22RPD Fuel Pump Hangar Design
Published: 12-04-20 05:00:00
In 2019 we started using AEM's 400LPh fuel pump. This is an upgraded version of the legendary Bosch 044 pump. We have liked them so much we decided to design a plug and play solution for the e36 platform. In this article we will discuss what makes this pump exceptional and we will detail our new solution for the pump in our e36.Let's start with the E36's fuel demands:Now obviously all of these figures are hugely dependent on the turbo, cams, displacement, and so fourth. Regardless they are ...
E36 318Ti Build: Turbo-Back Exhaust System
Published: 10-21-20 15:00:00
E36 318Ti Build
Now that the turbo is located where it needs to be, it's time to begin fabricating an exhaust system for the 318ti! Exhausts come in all shapes and sizes, ranging from an obnoxious hood or fender-exit, to a subtle OEM style system.Factors including personal preference and performance goals ultimately narrow down the design to its final form, these are a few of the most significant influences:Exhaust volume - (Track requirements, neighbors, wife & kids, etc.)Desired power level - (D...
What is the "Supercase" Diff and Why is it a good choice?
Published: 10-14-20 16:00:00
The super 8.8 is the latest advancement of the classic 8.8" differential from ford. It was released on the S550, 2015+ mustang. The original design was released in the 1980's as a solid axle and revised over the years with the same generic setup evolving into the popular 8.8-IRS in the late 1990's. While the late 90's 8.8-irs is a popular (easier) swap it is becoming more difficult to find. More importantly the latest revision is significantly stronger. The super case diff was initially rep...
E36 - Ford 8.8 Rear End Conversion - Unit Finalization and pricing
Published: 10-13-20 16:00:00
It has been a long time coming, but we are pleased to announce the completion of our Ford 8.8 super-case kit!Pre-order page link: Super F-88 Subframe KitIf you haven't been following along you can find some details here on Bimmerforums: bimmerforums.com or in our previous blog post here: 22rpd.comWe have final welded the first production unit in our new jig. This fixture allows us to produce these kits with consistent and accurate fitment every time!Let's recap some of t...
E36 - Ford 8.8 Rear End Conversion
Published: 09-28-20 10:54:25
Those of you who have seen our previous Bimmerforums thread have been patiently waiting for an update on our F88 differential conversion for the E36 chassis. We've all been busy around the shop the last few months, but we are approaching the testing phase for our rear end! To ensure a flawless fitment, we have created a jig based off of the original E36 subframe. Take a peek at some renders of the assembled unit!We will soon be releasing more details, including pricing and options!To view the fi...
E36 318Ti Build: Turbo Mounting
Published: 09-14-20 14:30:39
E36 318Ti Build
When it comes to turbocharger setups, the possibilities are nearly limitless, but some choices can make the endeavor more or less of a challenge. One of the first questions that must be answered is whether the turbo will be a 'top mount' or 'bottom mount'. Let's begin by discussing some of the benefits and drawbacks of each option:Top MountPros:Flex-Factor, the turbo and downpipe will be very visible which can be a heavy influence for show oriented buildsEase of access to turbo, and more space f...
LS3 Swapped E36 M3: Intro
Published: 09-03-20 10:20:00
E36 LS3 Build
We love our BMW engines, of course, but in some cases a V8 power-plant may be exactly what the E36 chassis needs. A 1995 M3 arrived at our shop as a bare shell, along with an array of parts including an LS3 crate motor with a Vorshlag swap kit, T56 Magnum transmission, and Moton Clubsport suspension!The goal for this build is to create a dual-duty streetable track toy. In addition to maximizing the limits and performance of the car, we will be retaining comforts such as air conditioning, and a r...
E36 318Ti Build: Microsquirt Standalone ECU
Published: 08-20-20 13:04:00
E36 318Ti Build
Many 4cyl owners choose to swap their cars with the 6cyl engine because the conversion is essentially drop in when using the correct wiring harness, ecu, and hardware. Its an easy way to boost the performance to essentially M3 level, but my goals are slightly different. I am concerned with balance, and more specifically, keeping the weight as low as possible. The M42 engine is a whopping 90lb lighter than an S52 engine, and this fact alone is why I am choosing to retain the 4cyl configuration fo...
E36 318Ti Build: Intro
Published: 08-04-20 08:01:32
E36 318Ti Build
Let me roll into this series with a small intro: I'm a sleeper BMW enthusiast, G-force addict, and engineer at 22RPD. I will be using this blog to provide updates to projects, technical information, and hopefully some inspiration. My goal is to update this 318ti series at least once every two weeks with a healthy dose of substantial and aesthetic progress. I was looking for a fun and cheap daily to keep miles off of my E46 M3, when I stumbled upon this listing for an E36 318ti. Until now, I had ...
What is AFR and what should my AFR be?
Published: 11-10-20 05:00:00
Internal combustion engines use fuel and air (oxygen) to produce energy through combustion. To optimize the combustion process, certain quantities of fuel and air need to be supplied in the combustion chamber.Air-Fuel ratio or AFR is the ratio between the mass of air and mass fuel used by the engine when running. We measure this with an exhaust probe called an O2 sensor. This sensor measures free oxygen in the exhaust pipe and we can back solve to the AFR ratio which we are running.The sto...
Welcome to the new Blog!
Published: 07-24-20 18:00:06
Congratulations! You have found your way to our new blog!This blog is something we are really excited about. It's no secret that in recent years, automotive forums and other places where we used to share what we have been working on have really dissolved. The replacing mediums leave us in a bit of a position where we don't feel like we can share some of the really exciting things we are working on, or show you the process it takes to really get to that finish line. Sure, we post some pictures to...