ACspeedtech have a well-earned reputation for building some of the best prepared Nissan VR38DETT engines in the UK. Whether you are looking to future proof your engine with a ‘paranoia’ build, looking for something ground-breaking or have been unfortunate enough to have an engine fail? ACspeedtech have a solution.
ACSpeedtech have tried most combinations of components on the market and will only use what we trust and are happy to measure our reputation against. We won’t compromise on cost over engineering. It has been proven time and time again to be a false economy to cut corners. For sure, that company down the road might be cheaper and quicker but are they building to the same specification using the combined experience enjoyed at ACspeedtech?
Our portfolio of engine building doesn’t begin and end with the VR38DETT. We also build other marques such as Mercedes, BMW, Porsche, Mitsubishi…… to name a few.

Our Partners.
Through many years of experience ACspeedtech have learned that a reliable supply chain and high-quality product are key to successful engine building. Therefore, we have selected to work with companies that we trust. We work to deliver the best component at the best possible price. We won’t compromise on cost over engineering.
We use selected components from the manufacturers including:
- Manley
- ARP
- HKS
- King Bearings
- Nissan (yes, some of their parts work very well!)




