5250 High Performance Blog

Rotary Engines | Cooling Systems oil and water

[fa icon="calendar'] May 22, 2017 8:00:00 AM / by Doug Sherwood posted in Mazda Rotary Rebuilds

[fa icon="comment"] 0 Comments

REbuilding rotary engines that have been damaged due to neglect in cooling seems to be a pattern for high horsepower turbocharged builds. This is caused by builds that use parts that should be put on piston engined cars, not rotaries.

Read More [fa icon="long-arrow-right"]

We are hiring in Colorado | We Need Technicians & Tuners

[fa icon="calendar'] May 14, 2017 11:10:28 AM / by Doug Sherwood posted in hiring

[fa icon="comment"] 1 Comment

Colorado Performance Shop | We are hiring Technicians and Tuners, NO Saturdays !!


We are looking for a technician that wants to learn and grow in the high performance automotive field to become part of our team.

Read More [fa icon="long-arrow-right"]

High Performance Maintenance | Understanding Spark Plugs

[fa icon="calendar'] May 5, 2017 7:00:00 AM / by Mike Wiener posted in spark plugs

[fa icon="comment"] 0 Comments

Spark Plugs | Why they need attention with your high performance car

Every car on the road that runs on gasoline has spark plugs. Some cars even have 2 plugs per cylinder. Bust just like different cars have different motors, different motors have different spark plugs. On most cars, checking or changing your plugs is a simply DIY task. On a few cars, getting to the spark plugs requires a bit a disassembly or difficult access.

Most inline and V type engines have the plugs right on the top of the motor making access a snap.

H type and transversely mounted motors may have plugs mounted low and on the side of the motor or on the backside tight against the firewall. These plugs may be difficult to access or require the removal of the intake manifold. These types of motors are better left to the professional.

Read More [fa icon="long-arrow-right"]

High Performance cars will Pass Emissions ...

[fa icon="calendar'] Apr 26, 2017 7:00:00 AM / by Mike Wiener posted in Fabrication Services, Emissions

[fa icon="comment"] 0 Comments

Emissions continues to be a problem for modified cars.

Most newer cars only need a scan of the cars computer system to pass emissions. But that's not always as easy as it sounds.

We recently had a customer that had bought a Hennessey Challenger SRT600 from out of state and was really surprised to find out it would not pass emissions here in Colorado. Here is what happened:

Read More [fa icon="long-arrow-right"]

Signs your Rotary Engine is Junk | Rotary Engine Rebuilds

[fa icon="calendar'] Apr 13, 2017 6:30:00 AM / by Doug Sherwood posted in Mazda Rotary Rebuilds

[fa icon="comment"] 0 Comments

The Mazda rotary engine is one that is loved by a few and dissed by many. Why is that?

With a power to weight ratio that of many supercar engines, the rotary makes great power for the size that it is. With that comes responsibility.

Read More [fa icon="long-arrow-right"]

Rebuilding the Rotary Engine | the rotating combustion chamber

[fa icon="calendar'] Apr 10, 2017 7:55:40 AM / by Doug Sherwood posted in Mazda Rotary Rebuilds

[fa icon="comment"] 0 Comments

The Rotary engine is the only high performance engine that has one, the rotating combustion chamber.

This means that rebuilding them is much more than using conventional thinking.

Read More [fa icon="long-arrow-right"]

Firewall Welds | Subaru firewall repairs vs the dealership repairs

[fa icon="calendar'] Apr 8, 2017 11:30:00 AM / by Mike Wiener posted in Subaru Firewall Clutch Pedal Repair

[fa icon="comment"] 0 Comments

Failing clutch pedals on 2008 and newer Subarus seems to be a continuing issue. We are getting at least one a week to repair at the moment.

As these cars age, I am seeing an increasing number with the same problem. Seven spot welds from the factory assembly process do not hold over time and break free causing high wear on the components that depend on the factory structural integrity.

Read More [fa icon="long-arrow-right"]

Data Acquisition | from adequate to meaningful Part 3

[fa icon="calendar'] Mar 30, 2017 9:30:00 AM / by Mike Wiener posted in Race Car Prep, Data and Gauges

[fa icon="comment"] 0 Comments

Data Acquisition and Why | Now that you know what sensors are on your vehicle and how they work, what do you do with them?

Read More [fa icon="long-arrow-right"]

Engine Sensors | Race Cars & Street Performance Part 2

[fa icon="calendar'] Mar 27, 2017 7:30:00 AM / by Mike Wiener posted in Data and Gauges

[fa icon="comment"] 0 Comments

Street Performance or Race | Any modern vehicle is covered in sensors. These sensors measure temperature, pressure, electrical current, and movement.

Part 2 | A gauge is a way for us to turn these measurements into a visual scale for us to interpret. But there doesn't have to be one gauge for every sensor. In fact, there can be hundreds of sensors and no gauges.

When it comes to choosing what gauges you want in your car, first you need to find out what sensors are already installed from the factory, then you decide on what level of information you want to see. More isn’t always better.

Read More [fa icon="long-arrow-right"]

Gauges for Race Cars and/or Street Performance | Part 1

[fa icon="calendar'] Mar 21, 2017 3:00:00 PM / by Mike Wiener posted in Data and Gauges

[fa icon="comment"] 0 Comments

I often get asked what gauges should I install in my performance vehicle? The real answer is “It Depends”.

Read More [fa icon="long-arrow-right"]

Subscribe to Email Updates