Rolling Road FAQ’s

Whilst our dyno is currently a 2WD setup, we are actually able to run most modern 4WD vehicles such as XDrive, Ford Focus RS, Haldex found in some VAG cars (Golf R, RS3, ‘small hot-hatch’ VAG) and many more. If you’re not sure whether or not we can run your 4WD car on the dyno, just give us a call or send us an enquiry on our contact form.

No. In in 99% of cases, a car doesn’t NEED to go on a dyno.

Despite what you may have heard on some Facebook forum, a dyno is not used to tune a vehicle. A dyno is used for a few reasons:

  • To accurately measure torque & horsepower
  • To offer a safe envrionment to do idle-redline, high-gear pulls without the concern of traffic, road laws and traction for the use of data logging
  • To hold the vehicle at a given RPM to enable steady state tuning for standalone ECU’s (not possible on OEM ECU’s so unless you have a standalone ECU – which you probably don’t, this point is irrelevant)
  • To hold the vehicle at a given RPM to diagnose vehicle issues
  • To replicate real-world driving for the purposes of diagnostics


A dyno is a very useful tool that can make tuning a lot easier but this only applies to scenarios where we are writing a tune for the first time such as hybrid turbo builds (we’ve covered this more on our ECU Remap FAQ’s).

For instances where a tune is already developed for a stock car or a car with light mods (such as a stage 2 tune), we would only use a dyno to show gains before and after for your specific car and to datalog rather than road logging (although we would probably road log as well). 

Other than holding an engine at a set RPM, there is nothing a dyno can do that a tuner cannot do on the road. 

From a technical standpoint, we can also ascertain a cars power and torque by looking at datalogs and doing some basic calculations on the road, so you can do that without a dyno. 

As a result, unless your tune is for a standalone ECU or a stage 3+ build, if you want your car to be used on our dyno, you will be paying us for a piece of paper with a graph on it. It will make no difference to how we tune your vehicle.

A big misconception is that if you car isn’t tuned on a dyno, it’s not been tuned to ‘your specific vehicle’. This is complete nonsense for a stock or lightly modified vehicle.

The argument usually leads on to say something like ‘well my car might have components that are more worn than others’. Whilst this is true, there is no amount of tweaks we can make to a tune that will defy the laws of physics. If you car does not make power on the dyno, this is always because there is a fault of a failing component somewhere. Changing the way we tune a vehicle will not fix the component that is causing loss of power.

Again, you do not NEED your car dyno’d to be tuned properly but if you’re keen on having the graph, you can add a dyno power run to your booking.

OR, if you have a heavily modified vehicle, book in for a custom tuning session as we’ll be writing a fresh tune for this type of vehicle.

Our dyno pricing is rather simple.

  • Power Runs Only – £100 including VAT
  • Power Runs W/ Remapping – £80 including VAT
  • Full Day Custom Tuning Sessions – £797 including VAT not including the tuning works

YES! We absolutely require our customers to prepare their car for the dyno. You can read up on how to do this, here.

Cars can make less power than expected for a number of reasons. This is often due to poor maintenance, faulty coil packs/spark plugs, injector faults or boost leaks. On the day, if your car doesn’t make stock power before we tune it, we will advise what steps can be taken next and will do our best to help diagnose the issue.

If your vehicle is already tuned and doesn’t make expected power, we may need to see a stock run of the vehicle to determine whether or not it is the tune that is at fault or if there is a mechanical issue.

Rest assured, whatever is causing your vehicle to make less power than desired, we can assist you towards your desired goals.

Yes, along with your welcome pack, we will provide a dyno graph printout.