Neil B wrote:
As diesels tend to have smaller faster spooling turbos, will this limit how much nitrous the engine can ingest? Or put better will it hit an optimum point with the nitrous, where the turbo will hold back any further increase in nitrous? And therefore hit a performance ceiling.
Many thanks
The limit of how much nitrous you can use (rather than 'ingest' so much) on any turbo is usually due to the size of the aspect ratio of the exhaust turbine.
That is to say, the amount you can get out through the relatively restrictive exhaust turbine, limits how much you can put in, rather than having reached the limit of how much the engine could actually 'ingest'.