Does a smaller AR turbo spool faster?
Yes, the bigger turbo with smaller A/R turbine housing makes more power everywhere. and SPOOLS EARLIER.
What increases turbo lag?
Turbo lag is affected by a number of different factors, including turbo size relative to engine size, the state of tuning of the engine, the inertia of the turbo’s rotating group, turbine efficiency, intake plumbing losses, and exhaust backpressure.
Does turbo housing size matter?
In Summary. Overall our experimentation with different housings showed us that smaller turbos really can be effective at making big power, but there’s always a trade-off and that sometimes it makes more sense to run a larger turbo with a smaller housing than a smaller turbo with the larger housing.
Do bigger turbos run cooler?
Hot air take up more room that colder air, and have less oxygen in it as a result. A bigger turbo, will move more air trough the compressor with less effort, creating less heat, and as such is more efficient.
Do bigger turbos make more boost?
The greater the turbo boost pressure, the greater the engine power. Besides, boosting an engine using a turbocharger does not only help to increase the engine’s horsepower but also its torque.
Why does a spooling turbo reduce engine speed?
This still holds true with older turbochargers and to an extent with smaller fast spooling turbos, this is due to the smaller and less efficient turbine housing causing the exhaust gases to stack up against at the turbine housing, causing exhaust reversion at full and part throttle and reducing performance.
Can a turbine diverter make a turbo spool faster?
In testing, the Turbine Diverter Valve has shown the ability to get larger turbochargers to spool much quicker. In fact, there is a substantial increase in torque and a moderate increase of horsepower between 1,800 rpms and 2,500 rpms.
Which is bigger the turbo or the housing?
The larger the housing (within reason) the later in the RPM the turbocharger will start to create boost but the more horsepower that it can support at higher RPM. The smaller the housing, the earlier the turbocharger will start creating boost but at a cost of more restriction at higher RPMs (costing you horsepower).
Why does a smaller a / are mean faster spooling?
A smaller A/R means that the “cone” is tighter and smaller which allows exhaust gasses to pass through at a faster rate, which helps the turbo spool faster. This is more conducive for low end drivability and quick spooling.