 2.0 Horsepower difference, Is it smog restrictions or US Petrol? |
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| 911GT2 |
 Apr 13 2020, 12:01 PM
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Member  Group: Members Posts: 195 Joined: 2-March 11 From: The Netherlands Member No.: 12,773 Region Association: Europe 
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The wikipedia page on the 914 2.0 states:
70 kW (95 PS; 94 hp) (US) 74 kW (101 PS; 99 hp) (RoW) Thats a significant difference. Is that due to the RON 91 petrol used in the US, or are the smog regulations the main reason. And if it's smog regulations, is there a way to 'undo' them? |
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| Bleyseng |
Apr 13 2020, 01:35 PM
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Yes, US pistons have a 7cc dish for a compression ratio of 7.6 to 1 vs the ROW had flat top pistons for a compression ratio of 8 to 1 and 100hp. That was the magic number Porsche wanted as the 914 2.0L really was replacing the 912 and the 914/6.
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Posts in this topic
911GT2 2.0 Horsepower difference Apr 13 2020, 12:01 PM
Al Meredith Go to page 97 of the Porsche Panorama (Porsche Clu... Apr 13 2020, 12:13 PM brant Euro pistons add about .5 of a compression point.
... Apr 13 2020, 12:15 PM
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