⚡Kermit Electrified⚡
It's taken an enormous effort to finally say that the EV conversion on this car is race ready, and the results are every bit as ridiculous as I have spent three years dreaming they would be.
220kW (300 HP) Tesla drive unit, 400VDC electrical system, and full hydro steering using a Radial Dynamics High Voltage Electrohydraulic Pump System.
This weekend, we head up to Vermont's Mt. Ascutney race with @nehahillclimb to see what it will really do. I can't say thank you enough to @jonesind.us who has knocked all of the wiring and programming out of the park on this build, and who has pulled several all-nighters in the past few weeks to make this a reality. See you there, Amigos!
@climbtotheclouds@aemevcontrols@terzopower@ebresearch@mpi.innovations@maximaperformanceauto@cdagneta@ryanmaxkalb
It turns out, there aren't many step by step guides on building an EV. It's been three years under the knife and countless hours of research, design, and building, but we are getting down to the final few weeks before the start of Hillclimb season and the to-do list is getting shorter by the day.
Kermit will be making a re-debut featuring a Tesla drive unit as well as our high voltage steering pump system, all leading up to the Mt. Washington Climb to the Clouds which returns this August after a 5 year hiatus. Let's GO!
@jonesind.us@aemevcontrols@maximaperformanceauto@terzopower@mpi.innovations@climbtotheclouds@nehahillclimb
Radial steering pumps achieved a podium sweep in Unlimited Trophy Truck as well as the class win in TT Legends this past weekend at the San Felipe 250 race. Unfortunately, the good results were overshadowed by a rookie mistake when one of our pumps had the shaft and bearing assembly leave the chat due to a missing retaining ring that was overlooked during assembly.
Over the years, we have invested heavily in our quality system to make sure that we ship only good pumps and the results have without a doubt spoken for themselves. The dyno test that we conduct on each pump confirms that performance is within specifications, but a dyno test won’t catch a missing retaining ring and at the level of motorsport we serve, mistakes like this are simply unacceptable.
For this oversight to happen once is not good, but the real tragedy would be if we shrugged it off and didn’t make adjustments to ensure it never happens again. So how do we do that?
For starters, we have implemented a final visual inspection and sign off that must be conducted by someone other than the technician that built the pump. Radial Dynamics is not a one man shop anymore. With the growing team, we have the opportunity to get a second set of eyes on each pump before going out the door.
More importantly, we have designed 3D printed hardware trays with individual pockets for every seal, retaining ring, bearing, pin, and spring that it takes to build a pump. An RDT will only be assembled starting with a fully populated tray so that after final assembly, it will be immediately obvious if any one piece of hardware gets missed. This is how we can be confident that we have included not just the outermost retaining ring, but every critical piece of hardware including those that you can’t see.
I’d like to say this was an April fools post but the truth is that we screwed up and will use this opportunity to make our foundation stronger because it’s one thing to fail, it’s another to fail and not learn from your mistakes.
@meziereenterprises water pump for consistent cooling, @radialdynamics steering pump for precise control, and dual alternators to keep everything powered under load. Every component plays a role during race day.
#treygibbsracing #offroadracing #meziereenterprises #radialdynamics #offroad
RADIAL PUMPS SWEEP TOP 7 AT MINT! Absolutely incredible results this weekend at the Mint400 where RDT steering pumps were equipped on the top 7 overall finishers, gaining 5 class wins, and 2 class podium sweeps in Unlimited SPEC and Unlimited 2WD.
Congratulations to Kyle Jergensen and the @camburgracing crew for making history as the first SPEC truck to take the overall win. In 2nd place overall and 1st in Unlimited 4WD was Brett Sourapas, followed by Ryan Arciero taking 3rd overall and 1st in Unlimited 2WD.
Kudos to all of our customers that raced this weekend and a big thank you to the guys here at the shop that maintain a top notch program to deliver steering pumps that flat out work.
Unlimited SPEC
🥇Kyle Jergensen @kylejergensen
🥈Brent Fox @fxconstructionracing
🥉Cole Hardin @cole_hardin1679
Unlimited 2WD
🥇Ryan Arciero @ryanarciero
🥈Nic Whetstone @nicwhetstone
🥉Tim Herbst @tim_herbst_19
Unlimited 4WD
🥇Brett Sourapas @brettsourapas88
Class 1
🥇Vaughn Gittin Jr @vaughngittinjr
Rock600
🥇Bailey Campbell @baileycampbell35az
#TechTuesday already?! Let's review how to install... and how NOT to install a press fit power steering pulley.
Press fit steering pulleys have a bore diameter that is typically 0.002"-0.003" undersized compared to the diameter of the pump shaft so that when installed, the interference fit allows fairly high amounts of torque to be transmitted from the drive belt to the pump shaft/rotor.
However, installing the pulley onto the pump should NEVER be done on a shop press, as the amount of force required install the pulley is more than it takes to push the shaft through the back of the pump.
Instead, use a special purpose pulley install tool which can often be rented from your local parts store, or bought for a reasonable price online. With a pulley install tool, the pulley is pulled onto the shaft via the threaded shaft center, without transferring any load to the rest of the pump internals.
If you have accidentally tried installing your pulley on a press and now have a hole in the back of your pump, it will need to be returned for a repair which is NOT covered under warranty. So do yourself a favor and when it's time to assemble your steering pump and pulley, make sure to use the right tool for the job.
#GetPumped #YourCertifiedHydraulicSpecialist #RadialDynamics
Radial Dynamics continues to expand at a rapid pace and we need to grow our team!
We have an immediate opening for a full time Manufacturing Technician at our factory here in Greenfield, Massachusetts. Job duties include assembly, servicing, and testing of high-performance power steering pumps and related steering components as well as supporting tasks such as laser marking, order fulfillment, inventory management, and occasional machine shop support.
Product specific training will be provided on the job for the ideal candidate who has good dexterity, extreme attention to detail, and proficiency with hand tools and basic machine shop operations.
Our small but highly skilled operation provides top of the line products and service across the motorsports industry, delivering vehicle-critical systems that have to work every time. Being a small team, we all equally share responsibilities of the day to day but this also means that we are highly flexible and able to take quick action to new ideas. When it comes to improving our products, processes, and business in general, your ideas are heard.
This full-time position is 40 hours per week with a reasonably flexible schedule, no or limited overtime, starting at $26-$28/hr. Benefits including PTO, paid holidays, profit sharing bonuses, retirement plan with company match, health insurance, and employee discounts.
If you are passionate about motorsports, enjoy being hands on, and want to earn a living supporting some of the wildest vehicles on the planet then we want to hear from you!
#NowHiring #FullHydroFactory #SteeringReinvented #MotorsportsIndustryJobs #HighPerformance #RadialDynamics
"Brent loved the new steering. Got 1st in spec and 2nd overall." This is the feedback we strive for! Congratulations to Brent Fox @fxconstructionracing on the class 6100 win this past weekend at the Parker Dam 500 with his newly converted Radial Dynamics steering system.
Congrats as well to @sendero.geiser.racing and @conner_mcmullen taking 3rd in 6100 plus @johnnyscustommotorsports taking 3rd in the Unlimited truck class.
There was a small hiccup for @adamhouseholder in his new-to-him Mason AWD when the pump feed hose came loose and he lost steering fluid, but fortunately the RDT pumps are tough and have been known to survive running dry. In this case, he was able to tighten the loose hose end, top off fluid, and continue on with the pump performing like nothing happened. We can't ask for anything more than that.
#RDT #GetPumped #DeliveringResults #YourCertifiedHydraulicSpecialist #RadialDynamics
#TechTuesday time! Full video on YT. Let's dive into the many steering issues at KOH 2026. Just that I am aware of, I count ten full hydro steering cylinders and two rack and pinions that suffered failures for multiple reasons at this year's King of the Hammers race.
Some were mechanical in nature, for instance, Paul Wolff suffered a failed cylinder gland when he dropped off of a ledge with the steering at full lock, forcing the cylinder gland to bear the weight of the vehicle and ultimately spit out a retaining ring.
Others experienced seal failures most likely from hydraulic pressure spikes and this leads me to Crossover Relief Valves. These hydraulic safety devices greatly reduce fatigue and pressure spike impacts on steering equipment by relieving the highest pressure spikes directly across the Left and Right turning ports of the cylinder or rack.
The cartridges used are a special fast acting type of valve called a Differential Area Pressure Relief. While a normal Direct Acting pressure relief valve may take 5 to 10 msec to respond to rising pressure, these Differential Area valves respond much faster, within about 2 msec.
We set these relief valves at 1.3x to 1.5x the main relief pressure setting, so they are only clipping the highest pressure spikes in the system. While it is a common misconception that they will add feedback to the steering wheel, it is important to keep in mind that when these valves are open, there is still 2,000+ PSI of hydraulic pressure in the steering cylinder providing assistance. As a result, drivers with these valves installed never feel or know that they are there, but seal issues have greatly reduced in trucks that have been using them for several years now.
We keep these in stock with a standard pressure setting of 2,300 PSI which covers most Trophy Truck and Ultra4 applications. Have questions or want to know more? Just ask.
#TechTuesday #YourCertifiedHydraulicSpecialist #RaceCarEvolution #RadialDynamics
