AcedIt Posted February 21, 2020 Share Posted February 21, 2020 I've seen some conversations about the orientation of these when reinstalling the air box. The manual appears to show them staggered whereas one tall and one short toward the front and the same in back but flipped. Comments? Sent from my LGMP260 using Tapatalk Link to comment Share on other sites More sharing options...
Member Contributer Grum Posted February 21, 2020 Member Contributer Share Posted February 21, 2020 On 21 February 2020 at 11:50 AM, AcedIt said: I've seen some conversations about the orientation of these when reinstalling the air box. The manual appears to show them staggered whereas one tall and one short toward the front and the same in back but flipped. Comments? Sent from my LGMP260 using Tapatalk Interesting point you raise Acedit. Got a feeling that this stagger is all about balancing the air induction pulse with the V4 cylinder timing and crank angles. Firing order is 1-3-2-4. The Front two cylinders are 2 left and 4 right. The Rear cylinders are 1 left and 3 right. The shorter Air Funnels are at 2 and 3 the longer are at 1 and 4. So that pattern relative to crank angle and firing order is: 1 to 3 = 180deg = a Long to Short Funnel. 3 to 2 = 270deg = a Short to Short Funnel. 2 to 4 = 180deg = a Short to Long Funnel. 4 back to 1 = 90deg = a Long to Long Funnel. If I'm making any sense then you can see the balance effect going on. You can see the longest crank duration (270deg) has the two shortest funnels, while the shortest crank duration (90deg) has the two longest funnels, and both the 180deg durations have a short/long combination. Hope this helps? Cheers Link to comment Share on other sites More sharing options...
AcedIt Posted February 21, 2020 Author Share Posted February 21, 2020 Interesting point you raise Acedit. Got a feeling that this stagger is all about balancing the air induction pulse with the V4 cylinder timing and crank angles. Firing order is 1-3-2-4. The Front two cylinder are 2 left and 4 right. The Rear cylinders are 1 left and 3 right. The shorter Air Funnels are at 2 and 3 the longer are at 1 and 4. So that pattern relative to crank angle and firing order is: 1 to 3 = 180deg = a Long to Short Funnel. 3 to 2 = 270deg = a Short to Short Funnel. 2 to 4 = 180deg = a Long to Short Funnel. 4 to 1 = 90deg = a Long to Long Funnel. If I'm making any sense then you can see the balance effect going on. You can see the longest crank duration (270deg) has the two shortest funnels, while the shortest crank duration (90deg) has the two longest funnels, and both the 180deg duration have a short/long combination. Hope this helps? Cheers:wacko: Holy crap that is one intelligent explanation. Well done Sir, well done. Sent from my LGMP260 using Tapatalk Link to comment Share on other sites More sharing options...
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