JDM Engineering Mail Order and Call Center in Freehold, NJ

JDM Engineering is located in historic Freehold, NJ home to Bruce Springsteen and our company owner Jim D'Amore.  Jim opened the doors to his business in 1998 over 20 years ago after years of working with in Ford Motor Company as a private contracted engineer.  Jim decided to part with Ford to offer his knowledge and passion for aftermarket performance parts developed to the public.  Over the years, the website and shop grew to what is today an 11,000 square foot facility housing 8 Employees, 4 garage bays, an In-ground Dynojet Dynomometer, Engine Assembly & Clean room, Machine shop, Mail order office, and Call Center. With over 20 years in the industry and an outstanding reputation, JDM Engineering is fully equipped to service and perform all of your Go Fast Ford's needs!  



JDM Engineering Installation & Service Center

All of the products that Team JDM sells can be expertly installed here in our well-equipped, 11,000 square foot facility. We are an authorized SCT Custom tuning facility, which means we do all our own development, testing and "tuning" of our SCT custom tune files. We have a fully-equipped machine shop, multiple bays and substantial amount of products in stock to meet your needs. Call us today to discuss your interests and check our shop schedule.



JDM Engineering Custom Built Engines

Looking to build the motor in your Mustang or Ford Truck?  Team JDM can offer a custom built bullet proof Ford Modular or Coyote based engine for you!  Team JDM offers everything from internal components Rods, Pistons, Cams, to complete assemble Short and Long Blocks!  Each engine is built in house to custom specifications for every customer!  Team JDM has over 25 years of experience building Ford engines.  Call today to discuss building a motor for your hot rod!



JDM Engineering Testing & Custom Tuning Center

Team JDM can test and tune your vehicle before and after performing any modifications. In addition to recently installed dyno facilities, we are very close to ATCO Raceway in Atco, NJ. Whatever your needs, we can help you to maximize and document your performance. Call us today to discuss your interests and check our shop schedule.



JDM Engineering Dyno Testing

Team JDM has a complete in-ground, Dyno Jet chassis dyno on the premises. The dynomometer is a tool we use to test a vehicles performance, gains, fuel mixture, boost, Horsepower, Torque, and more! Whatever your needs, we can help you to maximize and document your performance. Call us today to discuss your interests and check our shop schedule.



JDM Engineering Fabrication & Custom Development

JDM Engineering is temporarily suspending custom fabrication work in house which includes: Roll cage installation, Sheet metal bending, Custom exhaust work, Custom race car parts. Limited lathe, bridge port, and Tig welding available upon request.




These are following questions we get asked here daily at JDM Engineering, and we hope this helps you make an educated choice of choosing JDM for your vehicles needs. Let us know if this helped you in pursuit of making your Ford faster, drop an email or shoot us a call.  We would be happy to hear.

Q: What coils should I be running in my vehicle?

A: JDM Strictly in all applications only uses FORD OEM coils, and under no circumstance do we suggest you deviate from the OEM coils.  If you suspect an issue with your coils, only replace with new OEM complete sets at a time.  For 20+ years we have never had an issue resolved by an aftermarket coil, only issues arising from them.

Q: My supercharged vehicle feels sluggish as of late what can be the culprit?

A: 95% of all power loss issues with Ford Supercharged vehicles are a function of the intercooler pump going bad and causing no flow of coolant to the intercooler and heat exchanger.

On a cold start and ONLY cold, after 5 minutes while the vehicle is idling pop the intercooler reservoir tank open and check for fluid motion.  It should look like a spa with bubbles and circulation.  If there is no fluid motion, you have a problem with the function of the intercooler pump.

Q: Should I use octane booster if I cannot get enough octane at the pump?

A: No.  Octane booster can take out o2 sensors and spark plugs in a flash leading to failure of an engine.  If you have to mix fuels, use a true unleaded race fuel that is o2 sensor safe.  It is important you notify the tuner beforehand to make sure the combination is safe.

Q: I have a 91 or 93 octane tune, and I put 87 in the tank, can I run the vehicle?

A: Yes but only very slowly at best.  Most importantly, do NOT let the engine see load at all.  Drive like a grandmother until 1 full tank of 93 octane has ran through the vehicle.

Q: Why do I have to run a colder spark plug?

A: To delay the onset of detonation and preignition from too much heat in the combustion chamber around the spark plug.

Q: Why do I have to gap my spark plugs, and do you pre gap them?

A: Gapping your plugs is essential to prevent spark blow out, where as there is too much resistance for the spark to jump to the electrode.  Tightening the gap makes the jump easier for the spark.  We only pre gap the autolite HT-0, as it is inconsistent to do so with any other plugs due to settling during shipping.

Q: Why doesn't JDM use ARP head studs on our builds?

A: ARP makes industry leading fasteners, with amazing tensile strength, and there is no denying that.  What we at JDM have found is the fasteners tend to be so strong, in the event of excessive cylinder pressure or detonation, the ARP fasteners have zero yield.  When the head bolts don't move from detonation, something else has to give.  If you are lucky, you get excessive blow by, if not valves can tulip, spark plugs can blow out, or holes can form in the head, piston, or even the block.  Would you rather blow a head gasket or put a hole in your chamber?

Also, on any aluminum 5.4/5.8 Block the distortion of the bores when torquing must be accounted for when honing.  If you use studs the block may distort so far as to hurting the structural rigidity of the PWTA liner in these blocks.

We have multiple 1300+ horsepower Cobra Jets without head studs with ZERO issues.

Q: What Automatic Transmission Fluid should I use in my lightning?

A: STRICTLY Mercon Dextron III (3.) WITHOUT EXCEPTION Anything else can take out the transmission in less than 10K miles in the wrong conditions.

Q: Does JDM Engineering tune for E85?

A: Although there are always exceptions to the rule, JDM Engineering does not tune E85 and here is why: Inconsistency.

Pure E85 generally requires a hair more than 30% fuel by volume when compared to pump gas to make the same power.

Ethanol content can wildly swing per each gas station, and each tank full from 54% ethanol all the way to north of 90%!!!

This can mean a wild swing in the fuel mass your fuel system and tune need to account for, and not to mention the octane content is wildly fluctuating as well, all of which can take out an engine in a flash!

Unless the fuel is tested and confirmed to be right at the desired ethanol content as per your tuner, every single time you fill up, it is not safe nor smart to run in your vehicle.

Modern Ford flex fuel logic is reactive in nature to changes in ethanol content, and requires the fuel to be consumed to account for changes in fuel trims.

At wide open throttle, until ethanol content is learned fully, this is dangerous!!!