290 E Broad St
Manchester, CT 06040 | Driving directions
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J&M Motorsports | (860) 645-6389

Premier Parts Available

 


Dyno Tuning
Here at J&M we are equipped with a State of the Art Dynojet 248 in-ground
Chassis Dynamometer. This device allows us to create real driving environments that can accurately and safely create load for vehicle tuning and diagnostics. Dynos are used to measure and adjust key engine and transmission systems. With tuning we can adjust and maximize such features as fuel mileage, transmission performance and horsepower gains. Our dyno can measure up to 2000 wheel horsepower for measuring the most powerful vehicles around. Tuning is an essential part of any High performance vehicle. Without precise ECU or carburetor/distributor tuning you run a risk of decreasing a vehicles
durability and performance. No program is complete without fine tuning of components such as your air/fuel, timing, mass air flow and measuring boost. This state of the art Dyno offers advanced diagnostics on a wide variety of vehicles. Automobiles with as little as 20 horsepower to race cars with 2000+ horsepower can be tested safely, consistently and reliably in the shop under ideal load conditions.

 

Safety
A technician can safely test and tune a car repetitively without having to drive the car at unsafe and illegal speeds. Many automotive performance tests consist of running the vehicle at wide-open throttle and at high speeds. Even if a technician has access to a test track and professional test driver, the issue of safety still exists. Not to mention the wear on the vehicles tires, brakes and suspension. Chassis dyno testing however does not replace track testing of high performance vehicles such as racecars. This is because many more variables exist when a vehicle is driven around a track that simply cannot be replicated in a chassis dynamometer. Chassis dyno testing and tuning complements track testing.

Efficiency and accuracy
A chassis dyno provides an automotive technician a platform in which to repetitively test, evaluate and tune a vehicle in a relatively short amount of time. Using the dyno's load functions, a technician can tune a vehicle across the engines' entire operating range and performance envelope. Modern chassis dynamometers such as the Dynojet 248 operate with cutting edge software technology to provide accurate, efficient and repeatable testing. A dyno used in conjunction with current electronic engine management systems and tuning software provides a technician or enthusiast a complete toolkit to evaluate, adjust, re-evaluate and perfect a vehicles tuning parameters.

Baseline and successive testing
An automotive enthusiast wishing to improve vehicle performance can use a chassis dyno to determine the vehicles baseline performance before any modifications are made. After each stage of modifications are performed, successive dyno tests are conducted to evaluate and determine the effectiveness of the modifications. A performance aftermarket vendor involved in developing performance products should use a chassis dyno to help test the products design and effectiveness in improving performance.

Diagnosis
Certain symptoms of vehicular problems are many times exhibited only when the vehicle is driven and only during specific speeds, RPM, gear, etc. A chassis dyno can aid a repair technician by simulating the same conditions in which the symptoms are exhibited while the vehicle is driven on the street without the safety and legal issues.

 

Dyno Pricing List

J&M Motorsports uses a Dynojet 248c in-ground dyno. The Dynojet Dynamometer gives you the advanced technology, durability, and accuracy you need. Dynojet's advanced engineering delivers the precise horsepower measurements needed to make quick and accurate evaluations of engine and drive-train performance.

1, Daily Dyno Rentals with Air Fuel (Bung or Tailpipe)

$600.00 per Day

2, Dyno Tuning w/Air Fuel (Bung or Tailpipe)

$170.00 per Hour

3, Three (3) Horsepower and Torque Pulls w/printout

$600.00 per Day
 

The Dynojet Dyno allows you to measure, record, and diagnose performance problems quickly. Dynojet's new DynoWare EX+ interface hardware and WinPEP evaluation software automatically correct for altitude and atmospheric conditions, producing consistent, easily interpretable power graphs.

 

4, Three (3) Horsepower and Torque Pulls w/printout

$100.00 per car (Less than 10 cars no Air/Fuel)

5, Three (3) Horsepower and Torque Pulls w/printout

$100.00 per car w/Air Fuel

6, Three (3) Horsepower and Torque Pulls w/printout

$80.00 per car (10 plus cars no Air/Fuel)


J&M houses Dynojet's Model 248 which includes

  • Measures up to 1,200hp and 200mph
  • Software and Hardware to interface
  • Ignition Wire Inductive Tachometer Pickup Leads
  • Air Actuated Brake System
  • Automatic Conditions Measurement (absolute pressure, air temp, etc.)