Hartech Porsche

04/08/2026

🔧 It’s another 4.1 Tuesday! 🔧

Here we have Chris, one of our experienced technicians, fitting the final components after completing another Hartech 3.8L ➡️ 4.1L capacity conversion. 💪

This one is shaping up to be something special, and I can’t wait to see the finished result.

The owner has already put a lot of effort into the car, fitting a GT3-style body kit along with GT3 seats… and I have to say, the interior is absolutely 👌

We’ll be giving it a proper clean before we hand back to the customer, so keep an eye out for more photos of this beauty once it’s back on the road. 🚗✨

02/08/2026

🏁 Silverstone Race Weekend Recap 🏁

Hartech technicians Ash and Will spent the weekend at Silverstone supporting RVR as two of their race technicians, and what a weekend it turned out to be! 🔧🏎️

The Hartech team also made the trip to Silverstone in our 997.2 4.2 development car, giving us the perfect opportunity to put it through its paces before we officially release the build. Safe to say, it didn’t disappoint.

During qualifying, both cars put in some great lap times. Unfortunately, Jake’s fastest lap was disallowed for track limits, putting him 2nd on the grid for Race One and 5th for Race Two. Mark was also handed a five-place grid penalty, dropping him to 8th on the grid for Race One, but he bounced back to secure Pole Position for Race Two. 💪

🏎️ Race One

Both cars got excellent starts off the line, helping them work their way up the grid. Jake got away well and made his way past the race leader to take P1 🥇, while Mark fought his way through the field to finish P5 👏.

🏎️ Race Two

Race Two was a much different story, with Mark starting on Pole 🏁 and Jake lining up P4 after an unfortunate incident in Race One caused another driver to DNS. Jake once again made a great start and, by the second lap, had moved into P1 🥇. Unfortunately, Mark dropped back through the field, but following a five-second penalty for another driver, he was promoted to P4 💪.

🏆 Overall Results

Race One
🥇 Jake – P1
👏 Mark – P5

Race Two
🥇 Jake – P1
👏 Mark – P4

An outstanding weekend for the entire RVR team, with two race wins for Jake and strong performances all round. A huge well done to everyone involved, both at the circuit and behind the scenes. 💪🏁

29/07/2026

The air box plaques have now arrived! 🙌

These are available exclusively for previous or current Hartech engine builds (997 only, or 996’s a 997 airbox has been retrofitted)

I already have a list of customers waiting, but if you’d like one, please send me a DM for a price not a comment) with the following details:

✅ Full name
✅ Email address
✅ Home address
✅ Engine size

Once I have your details, I’ll send you an invoice.

Thanks for your patience – I can’t wait to see these fitted to your Hartech-built engines! 👌

28/07/2026

🔧 Another Porsche ready and waiting.

We’ve had quite a few cars leave the workshop over the last couple of weeks, but I haven’t had the chance to photograph and showcase them all.

This stunning 997 Carrera 4S Cabriolet has just completed one of our standard 3.8-litre Hartech engine rebuilds and is ready to enjoy many more miles. 🏎️💙

People often ask what actually happens during one of our rebuilds, so I thought I’d give you a little behind-the-scenes look at the journey every engine takes through our workshop.

📞 The Initial Enquiry

It all starts with an enquiry.

Whether by phone or email, we always prefer to have an initial conversation with the customer. It gives us the opportunity to discuss the car, understand the symptoms, answer any questions and offer honest advice. It’s also a chance for the customer to get to know us before making such an important decision.

Following that conversation, we send over a detailed breakdown for the customer to consider.

Once they’re happy to proceed, we agree a build specification, secure a booking and send confirmation. If required, we can also arrange collection of the vehicle. 🚛

Arrival at Hartech

When the car arrives with us typically around 3–4 months after booking it undergoes a cosmetic inspection before entering our Stage 1 assessment.

This includes an initial road test (where possible), and the gathering of the vehicles stored faults, data and rev ranges etc…..followed by a bore score inspection. We then confirm with the customer that the vehicle does have bore score or other symptoms even though they may have already been told this.

⚙️ Engine Removal & Inspection

The next stage is where the real work starts.

The enginee is removed from the vehicle and completely stripped down. Every component is individually inspected and assessed, including but not limited to……

• Engine block and cylinder heads
• IMS and bearings
• Oil and water pumps
• Timing components
• Clutch and flywheel
• Engine mounts/Gearbox Mounts
• Cooling system
• Vent lines and catch tanks
• Exhaust components
• Starter motor and charging system
• Pulleys and belts
• Brake lines and coolant hoses
• Any seized or snapped fixings

Plus much more…………..

Every ancillary and reusable component is thoroughly cleaned and prepared before reassembly. 🧼

📋 Customer Approval

All of our findings are uploaded to our internal customer file matrix, which documents every part requiring replacement or advisory items and automatically calculates the final cost.

We then contact the customer to discuss everything we’ve found before obtaining approval to proceed.

We believe it’s important that our customers understand exactly what we’re doing, why we’re doing it, and have complete confidence before any work moves forward.

🏗️ Precision Machining

Once authorised, the engine enters our machining department.

This is one of the most important stages of the entire rebuild.

The crankcases are meticulously machined and strengthened before our closed-deck liners are installed, along with new pistons, coolant modifications and any additional upgrades specified as part of the build.

Meanwhile, the workshop job sheet is updated and our parts department prepares every component required for the rebuild.

🔩 Engine Assembly

Once machining is complete, the engine moves into the build queue where our engineers carefully assemble the engine to our/the customers exact specifications.

After assembly, the engine is prepared for installation.

Ancillaries are refitted using either new or original components where appropriate, along with any additional maintenance items that make sense to replace while the engine is out, such as coolant pipes, brake lines and air-conditioning components.

The gearbox is reunited with the engine before everything is reinstalled back into the vehicle. New or upgraded exhaust components are also fitted if included within the build.

🛣️ Testing & Quality Control

Before the car leaves the workshop, it undergoes multiple quality control inspections and extensive road testing.

A senior technician carries out the final inspection before the vehicle completes a series of progressive test drives, covering approximately 50–60 miles, with numerous checks carried out between each stage.

Once we’re completely satisfied, the engine receives its second oil and filter change, followed by another comprehensive inspection to ensure everything is exactly as it should be.

Finally, the car is cleaned inside and out, ready for collection. ✨

For customers choosing one of our capacity conversions, the process also includes ECU tuning to ensure the engine performs exactly as intended. 💻⚙️

🏁 The Journey Doesn’t End There

Collecting the car is just the beginning.

We strongly recommend that every customer follows our running-in procedure, which has been developed over many years and thousands of successful engine rebuilds. Taking the time to run the engine in correctly is essential and helps ensure optimum performance, longevity and reliability. 📖🔧

After approximately 2,000 miles, we ask customers to return to Hartech for a post-rebuild inspection, where we carry out a comprehensive engine health check along with an engine oil and filter change.

This allows us to inspect the engine after its running-in period, ensure everything is performing exactly as expected and gives both us and the customer complete confidence before they continue enjoying many more miles behind the wheel. ✅

It’s a long process from start to finish, but it’s a process that’s absolutely worth starting. 💪 Every step gets you closer to the end goal.

18/07/2026

🚨 A Hartech First. A UK First. Possibly an EU First. 🚨

What you’re looking at is the first-ever 4.1-litre Porsche Cayman S in the UK, and as far as we’re aware, the first in Europe too. 🇬🇧🇪🇺

This car started life with a 3.4-litre flat-six, but now produces an incredible 4.1 litres of naturally aspirated displacement.

🔧 To achieve this, we engineered the build around a 3.8-litre 911 crankshaft, combined with the extensive machining and engine development that Hartech has become known for.

We also fitted some high performance Rods!

But this isn’t where our Cayman story started…

Our 3.4 ➡️ 3.9-litre Cayman S conversions have already proven to be incredibly successful and are becoming increasingly popular with owners looking for a significant step up in performance while retaining the character of the naturally aspirated flat-six.

The leap from 3.9 to 4.1 litres is another milestone in our ongoing engine development programme.

Just think about that for a moment…

With around 230,000 Porsches registered in the UK, this is a car that stands completely on its own. There simply isn’t another Cayman like it.

And yes… I’ve driven it.

All I can say is… it absolutely flies. 🚀

This is what Hartech is all about, continually pushing the boundaries of what’s possible with Porsche engines, while delivering performance that can only really be appreciated from behind the wheel.

The customer has spent time and money getting this Cayman to this level - it’s stunning and fast.
💨

Even though the team here work on Porsches day in, day out, we still get excited about all the builds we carry out 😁💪.

Who’d take a 3.9, and who’d go all out for the 4.1? 👇

16/07/2026

🔧 Hartech FAQs – Our Most Frequently Asked Questions

We see the same questions coming up time and time again across Porsche forums and social media (including our own page), so we thought we’d answer the most common ones in one place for everyone to refer back to.

📞 How do I book in?

Call the workshop on 01204 302809 and ask for Grant or Cam.

Or email [email protected]

💷 How much does a Hartech engine build cost?

Most of our base prices are listed on our website: www.hartech.org. These represent the minimum you can expect to pay for a Hartech engine build. Please call or email to discuss capacity conversions.

We also offer package pricing for:

* Block-only work
* Engine-only builds

What does a build cost on average?

This is probably the question we’re asked the most.

The honest answer is that every engine is assessed individually. No two builds are ever exactly the same.

Following inspection, we categorise any additional work into:

Essential – Items that must be repaired or replaced before the engine can be rebuilt, such as failed AOS units, snapped bolts, leaking coolant pipes, damaged components, etc.

Strongly Recommended – Work we’d advise carrying out while the engine is apart to improve reliability and longevity.

Light Recommendations – items we’ve noticed but aren’t cause for concern.

There is never any pressure or upselling from us. We simply provide honest advice, allowing you to make an informed decision.

📸 How much did the builds you feature on social media cost?

We generally don’t disclose individual customers’ invoices.

This isn’t about being secretive, it’s about respecting our customers’ privacy. Many of them follow our page, and we don’t feel it’s appropriate to publish what they’ve spent.

Of course, customers are more than welcome to share their own experiences if they wish.

📄 Can you provide information about a previous Hartech build on a car I’m buying or interested in purchasing?

The answer is sometimes.

If you’re purchasing the car directly from the customer who commissioned the Hartech build during their ownership, we’ll usually require their written permission before releasing any information about the work carried out.

However, if you’re not buying the vehicle from the customer who paid for the build, our company policy is not to disclose any information.

This isn’t because we’re trying to be difficult or secretive. Many Hartech-built cars change hands multiple times, and we often receive numerous enquiries about the same vehicle from prospective buyers. Unfortunately, we simply don’t have the time or resources to respond to every request.

We also believe it’s important to respect the privacy of the customers who entrusted us with their vehicle and paid for the work.

If you’re buying a Hartech-built Porsche, we’d always recommend asking the seller to provide any invoices or documentation they hold relating to the build.

🏁 How much power do your capacity conversions make?

Another question we get asked regularly.

Our focus has always been on increasing torque and improving drivability, rather than chasing peak horsepower figures.

As torque increases, horsepower naturally follows.

Every engine performs slightly differently on the dyno, even with identical specifications, which is why we don’t publish expected power figures. Setting specific expectations can be misleading, but customers are always welcome to share their own dyno results if they choose.

⚙️ What capacity conversions are available?

We currently offer the following conversions:

* 997 3.6 → 3.9 or 4.1
* 997 3.8 → 4.1
* 996 (Early) 3.4 → 3.7
* 996 (Late) 3.6 → 3.9 or 4.1
* Cayman S 3.4 → 3.9
* Boxster 3.2 → 3.7

If you’re unsure what engine your Porsche has, or which conversion is available for your model, just ask, we’ll be happy to help.

🚚 Can you arrange vehicle collection?

Yes.

We work with a trusted logistics partner who can collect and return vehicles throughout the UK. Collection and re-delivery costs are quoted at the point of enquiry or booking.

For customers sending engines or blocks only, we can also arrange collection and re-delivery via our trusted shipping partners.

🔩 Do you supply parts only?

Only Hartech manufactured parts.

IMS flanges
Racing Sumps
Vario cam seal kits

🧰 Can I supply my own parts?

In some instances, yes, but the best option is to ask at the point of enquiry or booking.

🛍️ Can you supply Hartech merchandise?

Yes.

We can supply Hartech stickers free of charge, Hartech decals (a direct replacement for the Carrera badge), and our popular 997 air box strip can be supplied at additional cost.

💳 Do I have to pay a deposit?

No, not initially.

Once we’ve assessed the engine and you’ve approved the work, we’ll ask for a stage payment, usually around half of the total build cost.

📖 What’s the running-in procedure?

Our full running-in procedure is available on www.hartech.org.

We do run through this procedure upon completion.

We strongly recommend following it carefully after every rebuild.

☎️ Can I call or email for advice?

Absolutely.

We have an experienced team who are always happy to answer questions and provide advice to the best of their knowledge.

Shall I ring every few weeks for updates?

Generally, this isn’t necessary.

We’re a very busy workshop with over 25–30 jobs on the go at any one time, so providing regular progress updates to every customer simply isn’t practical.

Rest assured, we’ll always contact you when there’s meaningful progress or if we need to discuss anything with you.

⏱️ How long does a build take?

Lead times vary depending on what’s being sent to us.

Complete vehicle & engine

* Around 3 months before we can accept the vehicle.

* Build time is then typically 10–12 weeks.

Engine only

* Approximately 6–8 weeks.

Block only

* Approximately 3–6 weeks.

Please note these times can vary depending on workload, staff holidays and unforeseen operational requirements.

🚗 Can I drop my car off early?

Usually, no.

Due to limited workshop space, we ask customers to bring their vehicle on, or very close to their allocated booking date.

If you have any other questions that aren’t covered in the FAQ’s then feelfree to send us an email or give us a call. 😃

Welcome to Hartech, the UK's leading Independent Porsche engine specialists, located in Bolton, UK.

13/07/2026

The Gen 2 air box plaque has arrived and has now been fitted to our Hartech 997.2 development car.

The builds are the main event, but the finishing touches also add to the overall package and look😁

Testing continues as we put the car through a comprehensive programme to ensure every aspect of the package performs exactly as intended before release.

If all goes to plan we should be ever closer to announcing build availability for both the 997.2 (9A1) and 991.1 engine programmes.

07/07/2026

This one received our 3.8L ➡️ 4.1L capacity conversion, along with a comprehensive engine rebuild to improve both reliability and performance. 💪

✅ New larger closed-deck aluminium alloy nickel silicon plated cylinders.
✅ Performance pistons & new piston rings
✅ New timing chain & timing chain guides
✅ Performance main, big-end & thrust bearings
✅ Intermediate shaft bearing replaced
✅ Cylinder heads fully overhauled:
✅ De-coked
✅Valves re-lapped
✅ Heads skimmed
✅ New valve stem seals

Plus a huge list of preventative maintenance and new components, including:

🔧 Spark plugs
🌡️ Low-temperature thermostat
💧 Water pump
⚙️ Exhaust valve lifters
🛢️ Oil/air separator
🛢️ Oil cooler
🛢️ Oil pressure switch
🛢️ Oil catch tanks
🌬️ Air filter
🚗 Clutch & flywheel
❄️ Air conditioning pipes & re-gas
💦 Coolant pipes & associated hoses
🛠️ Engine mounts
⛽ Fuel injector service
🧰 Various repairs, recommissioning, fresh fluids & testing

Every rebuild is carried out with reliability and longevity in mind, ensuring these iconic flat-six engines are ready for many more miles of spirited driving. 🏁

🇳🇱 This 997 should now have made it home safety to the Netherlands 🇳🇱

23/06/2026

A recent post-engine-build inspection gave us a great idea. 💡

One of our customers had sourced a custom airbox strip displaying the engine capacity after its 4.1-litre rebuild, and we thought it was a fantastic way to showcase the work carried out on the car.

As a result, we’ve now arranged for our own high-quality custom airbox strips to be produced, giving Hartech customers another subtle way to highlight their engine upgrade. These will be available alongside our popular Hartech rear decals, which replace the factory Carrera badge and also the quarter window stickers.

We’re pleased to say that stock has now been ordered and these will be available as an optional extra very soon.

Available for 997 models only

• 3.6 litre
• 3.8 litre
• 3.9 litre
• 4.1 litre

A small detail, but one that perfectly complements a Hartech engine rebuild.

20/06/2026

Something a little different from Hartech today! ☀️🏁

Some of the Hartech team enjoyed a fantastic family day at the Oulton Park Supercar Pageant, while also cheering on Mark and Jake from RVR, who we’re proud to sponsor.

With Oulton Park being the closest circuit to the Hartech workshop, it’s a great opportunity for the team and their families to get together, enjoy some incredible motorsport, and support our customers and partners on track.

Thankfully the sun stayed out, the atmosphere was brilliant, and there were some great results out on the circuit too! 👏

We also managed to grab a photo of part of the Hartech team – Will (Hartech Technician and RVR Support Technician), Clare from Business Administration, Louise from Accounts, and of course Mr Hartech himself, Barry Hart (better known as Baz!). We had other Hartech staff in attendance but we weren’t able to grab a photo of them.

There was plenty for the younger generation to enjoy too. My own daughter insisted on having her photo taken next to her two favourite Porsches of the day… although, if we’re being completely honest, her overall favourite car was actually a blue Lamborghini! We thought it was probably more appropriate to keep the Porsche photos for the Hartech page though. 😄

P.S. Before anyone points it out… yes, there’s a Mitsubishi badge in one of the photos! 😂 We might specialise in improving Porsches, but sadly not all of us are lucky enough to own one!