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02-08-2016, 08:23 PM | #1 |
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is this how dual cone intake is suppose to fit??
just put on this bms dci, it does sound good..
however, i dont know if im crazy but throttle response feels more sluggish? i didnt buy it for gains, just sound, but is it possible to lose power due to heatsoak or something? is there a better way to position the cones? not sure if it matters but i did a stage 1 mhd flash and muffler delete, otherwise its stock Last edited by mrkoven; 02-08-2016 at 08:30 PM.. |
02-09-2016, 08:56 AM | #2 |
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Well too close but not exactly.
You gotta push the rear intake pipe harder and it will get into the hose deeply. I had the same problem when I was installing them, and push it harder and played with the tube little bit and it was all good. Otherwise you may have 30FF code or any other CEL. Your intakes looks too close to each other. Check my set up out, and you will know what I am talking about (I know my engine bay is so clean! )
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02-09-2016, 09:00 AM | #3 |
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Also, you don't have to remove the air scoops, so they can still bring cold air.
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02-09-2016, 01:40 PM | #4 | |
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Your hood will channel the air flow. Since DCI depend on passive air flow this will not be enough which was designed for active air flow not passive air flow. Also do logs to see what is best. I am betting you will reduce dutycyle with it removed. |
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02-09-2016, 02:31 PM | #5 |
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I don't think air flow is a big deal for DCI since there is no cover, but cold air is a deal. If I remove the scoops I don't think I will get any cold air because there are too many ways for air to go. These are just thoughts nothing logged and tested, but will take a log soon
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02-09-2016, 07:26 PM | #6 |
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thanks for that tip!! no CEL, but will try pushing the rear cone in more
interested in your results on the air scoop.. i figured it would be less restrictive off, but i have no idea |
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02-10-2016, 12:45 AM | #7 | |
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The air pressure builds up in front of the radiator, then the compressed air will overflow in the direction where there is less friction which will be up and over into the engine and the DCI will capture that fresh pressurized ambient air while keeping the engine cool also. The only way to know for a fact without theorizing and guessing is to test it. You should have less pwm with it off and increased wgdc with it on. What does it mean ? Less wgdc means your turbo's are running more efficiently working less to produce the same amount of boost. We already did the R&D on this Below is after with stock intake ie CAI Please look at the MPH on the car after each test. There is no ambient air getting to the DCI. The air inlets are no good for passive air flow. You would have to be over 100 mph for air pressure to increase for ambient air to get ot the DCI. This is what contributes to rasp on carscause at 150°f the wastegates are wide open. The lower the temps are pre turbo the more closed the wastegates are. Last edited by BQTuning; 02-10-2016 at 01:01 AM.. |
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02-22-2016, 07:23 AM | #8 |
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Sorry OT, but holy moly your engine oil temp is high!
EDIT: Disregard that... 210F = 100C, not 120C like I thought... So according to your research, the conclusion is: DCI + no air scoop > DCI + air scoop > OEM Last edited by Asbjorn; 02-22-2016 at 07:29 AM.. |
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02-23-2016, 12:55 AM | #9 |
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OEM + Drop-in filter is the best. My personal feeling with the N54 is that dual cone intakes mirror the OP's comments.
What the results show - at least what I interpret from them - is that with the stock CAI (ie OEM box) the intercooler has to do less work to cool the air charge and this is therefore more efficient. |
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02-23-2016, 06:42 PM | #10 | |
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I plan to test the component surface temps with a laser thermometer. If it makes sense I may wrap the heat shield in gold heat tape to help fight against heat radiating around the intake. |
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02-24-2016, 04:53 AM | #11 |
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I think on a full bolt-on (IC, INLETS, Exhaust etc) + aggressive tune on the N54 then of course aftermarket intakes are going to help. But on an otherwise stock car with a light tune then the stock airbox will be superior.
Happy to see proper numbers on both but I have spoken to ESS myself and they recommend STOCK airbox plus drop-in as the choice. COBB also has done some testing and they found the stock airbox with tune-only to be superior. |
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03-07-2016, 02:23 PM | #12 |
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talhagursoy thanks for your pic, i have fixed my intake placement and theyre not touching anymore :P it did help with my perceived throttle lag initially i think, sounds really good regardless
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08-07-2016, 12:51 PM | #13 |
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I am trying to change my intake to the ECS carbon fibre one. Anyone know how to get the damn old airbox out. There are these three tabs with rubber on them which holds the box down. I am not too sure how to remove those tabs/screws.
Thanks, Jake. |
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08-07-2016, 09:35 PM | #14 | |
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