Similarity Rules and Parametric Design of Race Engines Fiat Research Center, Engines Dept

Format:

Book

Conference/Event

Author/Creator:

Boretti, Alberto A., author.

Conference Name:

SAE 2000 World Congress (2000-03-06 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

The paper compares 3.0 liter F1 engine solutions developed in compliance with the 1999 FIA Technical Regulations. A previous paper [28] presented a comparison of similar engines having 10 and 12 cylinders. Benefits of the 12 cylinders were clearly shown terms of pure engine performances. W12 engines made up of three banks of four cylinders are further investigated here. Similarity rules are presented first. These rules and non dimensional parameters from previous projects are then used to define geometric and operating parameters for "fully similar" engine solutions differing only in the bore/stroke ratio. Three different bore values are considered, B=89, 90 and 91 mm, thus producing bore/stroke ratios B/S=2.215, 2.290 and 2.367 respectively. These engine solutions are further refined by introducing variation of intake and exhaust pipe diameters and lengths and valve maximum lift and duration, thus producing "partly similar" engine solutions. Results are presented as computed classical engine outputs versus engine speed, including brake, indicated and friction values. While computed indicated values are fairly reliable, friction and therefore brake values are less accurate. Within these accuracy limits, engines with larger bores provide best car performances

Notes:

Vendor supplied data

Publisher Number:

2000-01-0669

Access Restriction:

Restricted for use by site license