so today i took a customer loaned sl55 airbox setup to the flow bench to be tested as well as being tested with our devil horn setup.
we have previously tested several combo's of our CAI/DCAI's along with the stock srt6 intake system, that data is here...
https://www.crossfireforum.org/forum...flow-data.html
todays testing was also done at ~ 15in/h2o
the sl55 setup we recieved had some trimming/damage to one of the "snorkle" tubes in which i assume he trimmed to fit on the srt6. we did however had a brand new identical (without the trimming done) air snorkel tube here that we did up for a sl600 a while back, anyways i substituted that in place so that both snorkle tubes would be OEM sl55 so the trimmed/broken inlet end would not squew the results. the sl55 setup had paper filters installed (not k&n drop in's) so thats what we did the testing with.
the results were what i was expecting and saying for the past few years but today i ponied up and dropped some coin for the flow bench time so this could be put to rest.
stock sl55 setup with paper filters and stock snorkle tubes flowed between 513-515cfm @ 15 in/h20
i then went for the devil horns setup. now i do not have any of the aluminum tubes that customers have been using to connect the devil horns to the sl55 airboxes so i did make a substitution. the tubes anthony sells have 2 bends in them, the tube i substituted had only 1 bend in it. sorry i made due with what we had here today. to once the substitued snorkle tubes went on we connected up our devil horns. with the horns on and the same flow rate we made 529-533cfm.
the attachment to the flow bench was identical to the setup we used on our previous trip there with the straight 3" tube heading up and then a 90deg silicone coupler to another straight section of 3' tubing aiming towards the back of the bench, this enabled us to attach the entire intake systems. yes the number for all tests would have been increased if that setup was not used for the adaptor to the bench but at that point we wouldnt have been able to test most of these setups. the important point is that all tests were performed the same in a climate controlled environment even though they were done on different days. im sure there is a very slight difference in humidity from then to now but we are talking a very slight difference in numbers if any.
so there is the data, the sl55 setup does indeed flow better then the oem srt6 air intake system but it is no where near the flow numbers of even our single CAI system.
so to get the important numbers together...
stock srt6 intake = 446cfm
sl55 intake = 514
sl55 with devil horns = 531
single CAI with teflon = 602
dual CAI with teflon and big filters = 748
i should have brought in a dcai setup with the normal filters to slap on there today also but we didn't have any ready, i'll have to do that next time we do testing.