Across the European turbocharged V8 cars, the same packaging problem keeps coming back. Two banks of cylinders feed two turbochargers, and both compressors then have to deliver air into a single intake path that has to cross an engine bay already crowded with the rest of the car.
The platforms differ in detail, but the questions are consistent: where the air enters, how the two sides join, and how the pipework crosses the bay without adding unnecessary bends or joints.
With two turbos, the intake path is not one route but two that meet. If one bank has a longer run, more bends or a smaller connection than the other, the two sides behave differently under load, and the engine management has to compensate.
The practical consequence is that symmetry is worth designing for. Where the factory layout forces an awkward run on one side, a custom pipe can often take a cleaner route and reduce the difference.
This is the same problem we solve on other twin-turbo platforms, and the answer is always in the geometry rather than in any single component.
The pipe that crosses the bay is usually the hardest part of the design. It has to clear the engine cover, the injector rail, the alternator and whatever else the packaging has placed in the way, and it has to do this without becoming a series of short sections joined by clamps.
Each clamp is a potential leak and a future maintenance point. Reducing the number of connections is one of the clearest gains available from custom pipework, and it is a gain that shows up in reliability rather than on a specification sheet.
Our intake work for the G11, G12, G30 and G31 turbo V8 cars follows that approach: fewer joints, cleaner runs, and silicone only where movement requires it.
Flexible joints belong where parts move relative to each other. On a turbo V8 the engine moves under load and the body does not, so the connection between the engine-mounted pipework and the body-mounted ducting has to absorb that difference.
Reinforced multi-ply silicone with the correct internal diameter does that job. The number of plies and the reinforcement type decide whether the hose holds its shape when pressure rises, and that is the difference between a hose that lasts and one that swells and splits.
We also build fluorocarbon-lined and Nomex reinforced silicone for applications where the standard construction is not enough, and the choice between them depends on what the hose will be exposed to.
A turbocharged V8 moves a lot of air, and the intercooler has to keep up. On the European platforms the coolers sit in different places depending on the car, from front-mounted units to coolers tucked into the front corners.
Whatever the position, the same rules apply: the core has to be fed with outside air, the ducting has to seal, and the pipework either side has to be sized sensibly. We build intercoolers and charge pipes across a wide range of platforms, and the V8 cars are among the most demanding simply because of the volume involved.
Aluminium is the normal choice for charge pipes because it is light and takes heat away from the air passing through it. Titanium appears where an owner wants lower mass and is willing to pay for the fabrication time that titanium requires.
Stainless steel, meanwhile, belongs on the exhaust side rather than the intake side, where it handles the temperatures involved far better than an aluminium part would.
Each material is welded in a way that suits it. Aluminium and titanium are TIG welded by hand throughout, with the joint purged so the inside of the weld is as clean as the outside.
The European turbo V8 cars span several generations and body styles, and the intake layout changes between them. A part developed for one will not necessarily fit the next, even when the engine designation looks similar.
We confirm the chassis and the year before recommending anything, and where a car has already been modified we work from what is fitted rather than from what the factory parts list says. Samples go to the customer before mass production starts, which is the point at which changes are still inexpensive.
These five points decide the specification on a turbo V8 intake build.
Tigindustry was founded in 2009, and the plant now covers about 53,819 sq ft with more than 50 employees. Most of the work still starts the same way: a customer describing the car, and an engineer working out what will fit.
On a twin-turbo V8 it pays to look at the intake, the charge pipes and the cooler as one design problem rather than three purchases. You can see what we build on our air intakes page, browse the exhaust sections under exhaust pipe, follow the flexible joints through performance silicone hose, confirm what suits your own car on shop by vehicle, and read how a custom project begins on our customization page.
