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  1. International trading

    2020 sees the United Kingdom leave the European union, and with trade deals with our European friends only being agreed days before the break up, it has left many of our international customers confused about not only  how they can continue to buy from Turbo Rebuild, but also what costs will be incurred, paperwork that will need completing and more.  We have spent many hours investigating what is to happen and how it will affect not only ourselves but you our valued customer.

    From the 01/01/2021 VAT will NOT be chargeable at point of sale to any country outside of the UK.  Previously, this was added at the checkout phase of a transaction and was shown on your invoice.  This charge was 20% of the order total.  From 2021, this will no longer be charged, as such any order placed with Turbo Rebuild will be 20% cheaper than before if you live outside of the UK.  You will not need to change anything you do in the order process, request this discount or similar, it will be an automatic process ensuring there are no extra steps you need to make.


    When your order is processed and dispatched, our dispatch team will need to fill out customs documentation which will travel with your order or be sent electronically.  This documentation will advise what the contents of your order consists of, the use of the products together with weights, values of the products and also a unique code used to ensure the receiving countries customs department can quickly identify and process your order though customs and on to final delivery.  Again, at this point you do not need to do anything whatsoever, this will all be automated.

    As your order has been made in a different country with the country no longer being part of the EU, the order will be processed as an import.  Depending on your countries customs procedures, this may result in an import tax, VAT charges and processing fees, we recommend you check your own countries policies on imports from outside the EU.

    Should your countries customs department feel your import is liable to charges, they will contact you to request payment for the charges, typically with a breakdown of such charges.  For this reason it is vitally important now more than ever to ensure we have the correct contact number and email address at point of sale. Your details will also be added to the tracking system of the delivery company to ensure you can keep an eye on the whereabouts of your order at all times.


    Shipping Costs & Timescales

    At this point in time, we are told by our shipping partners that they do not expect these changes to effect the timescales for delivery long term although there may be some small delays at first.  Currently they have not changed pricing for shipping, however we expect there may be some small increases to cover the administrative work carried out handling the customs side of the shipment.  As always we check pricing of shipping regularly and update together with adding new shipping options where required.


    The main points to note are there are no changes you need to make when placing an order with Turbo Rebuild, with orders typically being 20% cheaper, although you may however have to pay charges for import etc depending on your country.

    Our staff have studied the changes in great detail to ensure your order is processed as fast as possible ensuring the customs paperwork is completed in detail with great accuracy to ensure your order passes though the shipping and customs process with the least inconvenience possible.

    Please note, we are unable to offer incorrect, or altered customs declarations including devaluing of orders as this is against the law with the relevant authorities paying a close eye to this sort of rule breaking,


    As always, we try to accommodate all customs with shipper preferences and like to receive feedback on shipping, as well as anything else that would improve your experience of using Turbo Rebuild.  To see the shipping options available to your location, add the products to your basket and then “view basket” to see the shipping options, costs and speeds.


    We hope our transition is hassle free and does not affect trading with our overseas customers and will continue to try to offer the best products and service at the best possible price.


    Should you have any questions on shipping, import or similar, feedback or indeed anything else, please don’t hesitate to email us at [email protected] and we will get back to you as soon as possible

  2. Following from our last blog, billet wheels are a current trend for upgrades with some stating they are a con and may look pretty, whilst others think they are essential in any turbo upgrade.

    Billet compressor wheels are made via machining the wheel from a block of solid alloy (billet). A billet is loaded typically to a 5 axis automated milling machine and machined from a computer-designed drawing (CAD). But are they all the same? They look it...

    Simply copying the original cast compressor wheel will indeed give you some benefit; the structural strength of the wheel will increase with the wheel being machined from solid billet rather than cast, but it wont improve performance...

    Going to the effort to produce a wheel in billet rather cast may seem a waste if you're simply copying the original. The fact that the billet option is stronger, means you can make the wheel thinner on the blades and on the base, as well as on the nose and the hub. Instantly, you reduce the weight considerably and also improve the air flow because, with a smaller nose and hub, the blade surface area increases. More power = Faster spool!

    Further developement work can involve producing wheels in different designs with differing blade height, blade counts, extended tips, and maximise the potential flow of a wheel that is the same size as the original. With the use of computer aided flow dynamics software there are many gains to be made... This is where billet upgrades are a must!

    At Turbo Rebuild we are looking for maximizing the potential gains to give the most power possible without affecting the driveability. A well specced turbo will usually transcend something that has a massive top figure. Below we look at an example of what potential a performance designed billet wheel can give.

    Side by side here we have a genuine Garrett T3 55 trim compressor wheel 409096-0014 compressor and our billet upgrade wheel.

    Billet Compressor wheel comparison

    First thing first, lets check the weight of each...

    Genuine 409096-0014

    Billet 409096-0014 Compressor Wheel

    Out of the box, the billet wheel is over 9 grams lighter, that is a 17% weight reduction. To get this reduction we have made the wheel thinner, by machining the nose and hub. We have also gained a larger surface area for the blade to pump more air.

    Compressor wheel nose

    Billet Compressor small nose

    The billet wheel has a 4.2mm smaller hub compared to the case original. This results in the size of each blade being 2.1mm wider, increasing air flow. If we look at a Garrett compressor wheel, it has a 4.2mm larger compressor than the 409096-0014 wheel. We find the 60 trim wheel (409096-0013) coming in at 0.2mm smaller at 46.5 mm.

    This wheel is starting to look good indeed... Lighter than the original, stronger than the original, larger flow than the original, in fact more flow that the larger 60 trim wheel!

    Now, with the use of flow dynamics, we can adjust the CAD diagram to assess where more potential gains can be found. In this particular wheel, extending the exducer tips as well as raising the height of the wheel sees more gains.

    Standard T3 Cast Compressor Wheel

    Extended Tip Compressor Wheel


    Billet wheels can look the same, some won't make any difference whatsoever. Choosing a turbo builder who knows how to maximise the performance, has knowledge and experience in modifying turbochargers, as well as the correct equipment to complete the work, is the way to get the gains you are looking for!

    In a following blog post, we will get the wheels built into cartridges and take some airflow readings to see how they do side-by-side and then onto a car for real world results!