My Intake Test, Phases 2 & 3 Complete
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My Intake Test, Phases 2 & 3 Complete
A while back I began an unscientific test of MY intake system in different configurations to validate for myself, the value, if any, of the various mods. I have made to my system. You can see the first phase with background info. at: https://dodgeforum.com/m_230964/mpag.../tm.htm#230964
Phase One was completely stock, Phase Two was with just a drop in K and N air filter, and Phase Three was with the K and N filter and my additonal 3 inch duct from behind the grill into the front of the airbox. Phase Four will be as Ph. 3 with the additon of my homemade double wall triple insulated intake tube replacing the stock rubber accordian tube. Here are summary results of Phases 1, 2 and 3. It should be noted that all highway runs were made over the same route, Ph. 1 and 2 traveling 60-65 on the outbound leg and 65-70 on the inbound leg. For Ph. 3 and 4 I will reverse that....65-70 outbound and 60-65 inbound. Also, the inbound mileages for Ph. 2 and 3 are not true representations of mileage as in Ph. 2 there was a 20-35 mph head wind, and Ph. 3 there was also about a 20 mph head wind. All outbounds were made in the morning with virtually no wind at all.
Phase 1: In Town, 15.3 and 16.1 for average of 15.7 mpg.
Highway, outbound: 26.7, inbound: 28.5 for average of 27.6 mpg.
Phase 2: In Town, 17.1 and 16.8 for average of 16.95 mpg.
Highway, outbound: 27.1, inbound: 25.7 for average of 25.7 mpg.
Phase 3: In Town, 17.7 and 18.1 for average of 17.9 mpg.
Highway, outbound: 29.1, inbound: 25.4 for average of 27.25
Note that all outbound mileages (no wind) got better with each mod., as did the in town mileage. Also note that a good head wind really kills the mileage.
Also, two out of the three highway runs got better mileage at 65-70 than at 60-65 mph, which surprised me. On Monday I'll be heading out on a 1000 mile trip with Phase 4 configuration. I'll get plenty of highway mileage results and will do the in town stuff when I return.
Phase One was completely stock, Phase Two was with just a drop in K and N air filter, and Phase Three was with the K and N filter and my additonal 3 inch duct from behind the grill into the front of the airbox. Phase Four will be as Ph. 3 with the additon of my homemade double wall triple insulated intake tube replacing the stock rubber accordian tube. Here are summary results of Phases 1, 2 and 3. It should be noted that all highway runs were made over the same route, Ph. 1 and 2 traveling 60-65 on the outbound leg and 65-70 on the inbound leg. For Ph. 3 and 4 I will reverse that....65-70 outbound and 60-65 inbound. Also, the inbound mileages for Ph. 2 and 3 are not true representations of mileage as in Ph. 2 there was a 20-35 mph head wind, and Ph. 3 there was also about a 20 mph head wind. All outbounds were made in the morning with virtually no wind at all.
Phase 1: In Town, 15.3 and 16.1 for average of 15.7 mpg.
Highway, outbound: 26.7, inbound: 28.5 for average of 27.6 mpg.
Phase 2: In Town, 17.1 and 16.8 for average of 16.95 mpg.
Highway, outbound: 27.1, inbound: 25.7 for average of 25.7 mpg.
Phase 3: In Town, 17.7 and 18.1 for average of 17.9 mpg.
Highway, outbound: 29.1, inbound: 25.4 for average of 27.25
Note that all outbound mileages (no wind) got better with each mod., as did the in town mileage. Also note that a good head wind really kills the mileage.
Also, two out of the three highway runs got better mileage at 65-70 than at 60-65 mph, which surprised me. On Monday I'll be heading out on a 1000 mile trip with Phase 4 configuration. I'll get plenty of highway mileage results and will do the in town stuff when I return.
