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Dual Cone Filters with JB+
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08-03-2009, 09:20 AM | #1 |
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Dual Cone Filters with JB+
I've intstalled the DC filters today, and tested them with the JB+, which is set to max power as usual. I can't feel any difference with the butt-dyno and it seems clear they don't do much on this power level. The boost was 13.8 PSI today, previous max recording is 13.5 PSI, so it may have provided a few extra horses, but nothing that is noticeable. Saying this, I don't mean they are not doing any good, just that they are not meanful on JB+ level.
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08-03-2009, 09:36 AM | #2 |
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I really cant see you needing more flow at that level. The only thing you might do is eas the load on your turbos at the cost of higher IAT and less filtering, more dirt in the engine bay.
Id say you need to be on a JB3 or in that range of map 5-6 and up before you mighgt see a gain, but until independent tests are done, we may never know.... Even then it could be worth it on one day, and not worth it on another... |
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08-03-2009, 12:52 PM | #4 |
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+1 You gotta be putting some serious power down to make a change in intakes worthwhile. Up to The high 3's the stock airbox should suffice.
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08-03-2009, 01:47 PM | #5 |
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I would think the factory setup is better since its pulling in cooler air compared to the DCI stuffed inside a scorching hot engine bay
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08-03-2009, 02:51 PM | #8 |
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OP is on 100%
Yeah, I pretty much keep my DCI on for the spooling sound. Though the spooling is pretty quiet still. |
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08-03-2009, 03:51 PM | #9 | |
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Mike |
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08-03-2009, 03:59 PM | #10 |
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08-03-2009, 04:09 PM | #11 |
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08-03-2009, 06:00 PM | #13 |
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DCI is great as long as you have a good FMIC. I refuse to use them on a stock FMIC for heat reasons... not to mention it is probably pointless for airflow reasons due to the restrictive nature of the stock FMIC and piping/connections.
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08-03-2009, 07:08 PM | #15 |
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08-03-2009, 07:40 PM | #16 | |
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Hood up or hood down on those dynos? Before and after?
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08-03-2009, 10:48 PM | #17 |
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I'm sure on a nice stretch of open highway the DCI would see some gains. In real world conditions with a combination of sitting in traffic etc.... No thanks.
Even if it shows a few hp gains it isn't worth raising the dealers suspicion when you go in for service or warranty work. Yeah you can argue that who in their right mind would go to the dealer with mods installed but at the same time are you really going to start pulling out every mod whenever your car goes back? Just my opinion Alan |
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08-03-2009, 11:11 PM | #18 |
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im on map 7 jb3 as a daily driver i think im gonna get a CAI soon to try it out.
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08-04-2009, 12:50 AM | #19 |
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08-04-2009, 03:28 AM | #20 | |
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Thx Mike, I hope you are right. Can you confirm your statement with a dyno curve? I'll also give the filters another opportunity to show whether they provide gain with JB+ (at max-setting) or not and report my findings. |
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08-04-2009, 03:33 AM | #21 | |
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And with the heatshield mounted I did lower my AIT with 59 F (15 C), and the power feels much more stable then before. When I was driving the car in the city at low speeds, I could feel a distinct loss of power without the heatshield. The engine prefers cold air, even if you have a better IC mounted on your car. Thats a fact. |
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08-04-2009, 03:37 AM | #22 | |
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This is something you will only feel using your car IRL, without super effective high speed fans blowing on you engine during a dyno test... |
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