4WD rolling road power runs in
Slough.
Find out what your 4WD car actually makes. We run measured BHP and torque on our rolling road at our Slough workshop and hand you a printed graph. No nonsense. No hidden prices. Book in today.
⭐⭐⭐⭐⭐ 4.9 out of 5 from 500+ Google reviews. Trusted by drivers across Slough since 2019
- ✓6 months interest-free, up to £3,000
- ✓Same-day slots available in Slough
- ✓Real measured BHP, printed graph in your hand
4WD Rolling Road Power Run in Slough
If you drive an AWD performance car around Slough, the marketing figures and the real wheel power are rarely the same. Audi RS3, Golf R, Focus RS, Nissan GT-R, BMW M xDrive, Mercedes 4MATIC AMG, Tesla Model Y Performance, all of them lose meaningful power between flywheel and wheel. The only way to know what you actually have is a 4WD rolling road power run at our Berkshire workshop.
We do measured power runs every week. You drive in, we strap the car down properly, take ambient readings, do a clean run-up through the gears and print the graph. No guesswork, no rounded-up numbers, no agenda. Honest figures you can hand to the next buyer, the next tuner, or just stick on the garage wall.
What you get from a 4WD power run
- Measured wheel BHP and wheel torque. the actual number, not a marketing brochure figure
- Calculated flywheel BHP and torque. with the correction for drivetrain loss appropriate to your car
- Printed dyno graph. BHP and torque curves across the rev range, on your name, your date, your reg
- Air, fuel and lambda data where logged. useful if you are diagnosing a tuning or fuelling problem
- Honest interpretation. we will tell you if the numbers are normal for the car or if something is down on power
- Optional re-run. common on tuned cars before and after a change. Discounted second run on the same visit
Cars we power-run regularly on our 4WD dyno
Audi RS3, RS4, RS6, S3, S4, S5. VW Golf R Mk7 and Mk8, Tiguan R. Ford Focus RS Mk2 and Mk3, Kuga ST. BMW M2, M3, M4 xDrive, M5, X3 M, X4 M. Mercedes A45, A45 S, C63 4MATIC+, E63 4MATIC+. Nissan GT-R R35. Subaru Impreza WRX STI. Mitsubishi Evo. Lamborghini Huracan and Urus. Tesla Model 3 Performance and Model Y Performance. Most of them are regular customers driving in from across Slough, Windsor, Maidenhead and the wider Berkshire area.
If your car is not on the list, send us the make and model on WhatsApp and we will confirm whether we can safely strap it down on the 4WD dyno. There are very few modern AWD cars we cannot run.
What the run looks like on the day
Drive in, sign the consent form, we book you onto the dyno. The car goes onto the rolling road, all four wheels strapped down with proper ratchet straps, cooling fan in front of the intake, exhaust extraction connected. We warm the car gently, log baseline data, then do the measured pull from your chosen RPM to redline.
You can stand and watch the live graph build on our screen if you want to (most customers do). One printed graph at the end, optional digital PDF emailed. Honest result either way. We will not fiddle the numbers to flatter the car, and we will not pretend a flat torque curve is a peak. Real data, your call what to do with it.
Where we are and who we cover
4WD rolling road power runs for drivers across Slough, Langley, Colnbrook, Datchet, Windsor, Maidenhead, Uxbridge and Gerrards Cross. Honest Berkshire dyno workshop, five minutes from M4 J5 at SL3 7EW.
Want to know what your AWD car really makes? Call 01753 439115 or WhatsApp the Onyx Autocentre team on 07393 580281 with your reg and we will book a power run at our Slough workshop. 01753 439115 or WhatsApp 07393 580281.
More on dyno testing: Before and After Dyno Graph. Proof Your Remap Worked · Stage 2 or Stage 3 Dyno Tune? We Map It in Slough · Diesel Dyno Power Run + Real MPG Test in Slough · Track Day or Dyno Day Prep. Readiness Check in Slough · Back to Dyno Testing
4WD Rolling Road Power Run in Slough in Slough and across Berkshire
Onyx Autocentre is based in Slough, Berkshire and we look after cars from across the SL postcodes every day. Whether you're driving in from central Slough, Langleyor Colnbrook, we'll book your 4wd rolling road power run in slough around your schedule. Same Slough workshop, same trusted team, same standard on every 4wd rolling road power run in slough job.
Common dyno testing jobs we see at our Slough workshop
All our services
Every service we offer at our Slough workshop. Tap a tile to find out more.
- Air Bag RepairsFind out more
- Alloy Wheel Crack WeldingFind out more
- Alloy Wheel RefurbishmentFind out more
- Alloy Wheel WeldingFind out more
- Auto ElectricsFind out more
- Body Kit FittingFind out more
- Boost Leak & Smoke TestFind out more
- CambeltsFind out more
- Car Air ConditioningFind out more
- Car BatteriesFind out more
- Car BrakesFind out more
- Car ExhaustsFind out more
- Car ModificationsFind out more
- Car RepairsFind out more
- Car Safety ChecksFind out more
- Car ServicingFind out more
- Car TyresFind out more
- Carbon CleaningFind out more
- Cheap Car TyresFind out more
- Clutch ReplacementFind out more
- Diesel Performance ECU TuningFind out more
- Diesel TuningFind out more
- Dyno TestingFind out more
- ECU RemappingFind out more
- Engine DiagnosticsFind out more
- Engine ManagementFind out more
- Engine RebuildsFind out more
- Engine TuningFind out more
- Fleet MaintenanceFind out more
- Gearbox ServicingFind out more
- Gearbox TCU RemappingFind out more
- Haldex ServicingFind out more
- Head Gasket RepairsFind out more
- In-Car EntertainmentFind out more
- Mechanical RepairsFind out more
- MOT Failure RepairFind out more
- Nitrogen Oxide (NOx) Sensor RepairsFind out more
- Number PlatesFind out more
- Oil & Filter ChangeFind out more
- Parking SensorsFind out more
- Powder Coating for Alloy WheelsFind out more
- SteeringFind out more
- SuspensionFind out more
- Timing Belt ReplacementFind out more
- Trade Alloy Wheel RepairFind out more
- Turbo Intake CleaningFind out more
- Van Repairs & ServicingFind out more
- Vehicle SecurityFind out more
- Wet Belt ReplacementFind out more
- Wheel BalancingFind out more
- Window TintingFind out more
What Our Customers Say
Rated 5 Stars on Google by drivers across Slough and Berkshire
"Took my BMW here for an oil change and oil filter and the service was spot on. Really friendly team, got the car booked in quickly and the job was done properly with no hassle."
"Highly recommend this garage. After contacting a few other garages who didn't want to take my car in for diagnostics, these guys were happy to help. They diagnosed and fixed an engine fuel leak issue professionally and efficiently. Great service and very reliable. I'll definitely use them again."
"Very nice experience at Onyx — they took me in immediately and completed the DRL module swap efficiently. I have no regrets and would highly recommend."
"I brought my car to Onyx after visiting many other mechanics who failed to sort out issues with my vehicle. The mechanics here clearly explained the issues with the vehicle and fixed them quickly. Amazing service and wonderful people, highly recommend."
"These guys are always polite and welcoming. I've taken multiple vehicles here and the service received has been excellent."
"Had the front pads done here over the weekend. Second time in with Onyx and service has been top notch both times. On time, no hassle and cost effective. Highly recommend."
"Max and Ben are extremely professional and did an excellent repair on my wife's car at a great price. Max spotted the problem within 6 hours, which 2 other garages could not detect."
"I took my car to Onyx and met Ben who was friendly and I got the problem diagnosed by Ben which I had a faulty water pump. I was quoted a reasonable price and got it replaced. I was satisfied and would recommend Onyx."
"Great service, sorted out my alloy refurb at a good price and quick turnaround. Top service, highly recommend."
"A great experience with Onyx who fitted a new clutch for my Fiat 500. Super quick, friendly and well priced. Would highly recommend."
"Very friendly, no hassle effective service. Definitely recommend and will use when I need to get my alloy wheels refurbished."
"Brought my Audi S3 in for a coolant leak — the part was on back order but they managed to source one in a couple of days. Massive thanks to Ben."
"My vehicle went in for a brakes job and Ben and the team at Onyx Autocentre did an amazing job. Highly recommended."
Spread the cost over 6 months, interest-free.
Big bill? Pay the first instalment when you book, then spread the rest across up to 5 more monthly instalments, interest-free. Available on jobs up to £3,000. No setup fees, no hidden interest. FCA-authorised through Payment Assist, soft credit check, decision in minutes.
- ✓ Up to 6 months interest-free
- ✓ Available on jobs up to £3,000
- ✓ First payment at booking, rest split monthly
- ✓ Soft credit check, decision in under 2 minutes
- ✓ No setup fees, no hidden interest
Same-day slots are limited this week.
Call or WhatsApp now and get 4wd rolling road power run in slough today. Slough, Langley, Colnbrook, Windsor, Maidenhead, Uxbridge and Gerrards Cross.