Quote:
Originally Posted by DAVID GAGNARD
I'm certainly not an engineer but I know of real world results..
331 stroker,472hp @ 6400 rpms,no air filter
with a 14 inch diameter X 3 inch tall AC Delco paper filter element,my engine lost 2 hp on the dyno.......
The dyno guy was amazed,he guessed it would have been in the 5 to 10 hp range....we did 3 or 4 pulls with the air filter on and just to make sure,it was the same each time.....
David
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If I plug your numbers into the
Second Strike Air Cleaner Calculator it returns a 1.99 HP loss @ 6,400 RPM. Pretty close to your 2 HP on the dyno, I'd say.
Change the element to 'oiled felt' (e.g. K&N) and the loss is only 0.68 HP - you could gain a whole 1.31 HP by switching elements. Imagine how much stronger it would pull with an X-Stream top!
