05-15-2017, 05:30 PM | #1 |
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Pure Turbos Inlet Pipe HP Gains?
Hey guys, has anyone posted any dyno charts of power gains made with the Pure Turbos inlet pipe? I'm eagerly awaiting my Fabspeed catted DP to free up the flow on the exhaust side and gain some power. I'm wondering if there are gains to be had by freeing up the intake side on an otherwise stock car (stock aside for the Fabspeed catted DP). If there are, it seems like a cost effective, safe, easy mod.
Maybe I'm missing something and that inlet pipe is only really needed for the folks running reworked or larger turbos, larger intercooler, etc? Thoughts? |
05-15-2017, 06:39 PM | #4 |
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05-16-2017, 04:06 PM | #5 |
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I think that if you are going to get no more ambitious than a Dinan Stage 4, which is basically a Pure Stage 1 turbo, a turbo inlet pipe won't do much, although I'm not sure 1 hp is an actual measurement of the difference here.
But I also think that if the future might hold more ambition, like a Pure Stage II, given the cost of the pipe (which is truly minimal in the hop-up scheme of things) it would not be outrageous to install it at any time. Which is what I did, when I had the Dinan kit installed. Which was pretty much the same thinking that led me to put in the HPFP as well.... If you are going to stick with the stock turbo for the foreseeable future, though, the pipe won't do anything. |
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05-16-2017, 05:10 PM | #6 |
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some discussion here: http://www.2addicts.com/forums/showthread.php?t=1271177
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05-16-2017, 08:42 PM | #7 |
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With this little pipe, a lower PWM was seen from multiple back to back data logs, which may or may not make a difference power wise. It all comes down to how much flow turbo is demanding (tune) and capable of handling (turbo capacity). I tend to believe a lightly tuned 35i, or a stock m2 should benefit very little from it.
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05-17-2017, 02:02 PM | #8 |
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Thanks for the feedback, guys. The plan right now is to bolt up a few simple, cost effective, mods that don't put the engine at risk and can be undone if ever needed. If the Pure inlet was going to net me 5 or 10 Hp, I'd do it but it sounds like that's not the case. Seems like it's a barrier to higher Hp but only when running a significantly modded setup, which is not me now, and may never be me.
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05-17-2017, 09:58 PM | #9 |
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The ability of the turbo to spool up faster must count for something, even on our small turbo cars. I installed my Fabspeed Sport Cat at the same time as the pure inlet so I cannot comment on what does what but just like a thinner straw will be harder to pull air through, the much more restrictive inlet would be harder on our turbos to get to boost and make it a slower spool up on the way. The change in the responsiveness of the car, even without a tune, is noticeable and impressive. That does not define how much was the inlet and how much the downpipe but I have to believe that both are working for the better on our car.
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05-18-2017, 07:50 PM | #10 | |
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05-23-2017, 12:15 AM | #11 | |
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I would agree with you on what you say above. I'm running hi flo inlet pipe on my jb4'd ewg M135i. Some better throttle response and lower PWM to achieve same boost means turbo is reacting quicker and doing less work to deliver same boost levels i.e. circa 16.5psi. No bad thing in my book. BP
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05-23-2017, 03:03 AM | #12 | ||
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I didn't notice the improved throttle response, probably because Wagner EVOII intercooler was installed at the same time. That being said, I believe all the goods this little pipe does to the turbo and would have installed it even if I stayed with stock tune. You mentioned 16psi you're running, is it at up top or down low? Do you see power gains in addition to a lower PWM?
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05-23-2017, 03:18 AM | #13 | |
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like you I installed Wagner comp EVO II FMIC at the same time - given the larger volume compared to stock, I was concerned about loss of response. The Hi flo inlet plays its part in maintaining it. Yes I saw some improvements across the whole rev range - see my post on 2 addicts forum. Also posted on N54tech forum http://www.n54tech.com/forums/showthread.php?t=42512
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11-05-2018, 03:39 AM | #15 |
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Yes that was my experience with hi flo inlet on my m135i. I was also keen to offset any potential loss of throttle response due to fitting upgraded FMIC. Throttle response was good hence I plan on installing hi flo inlet on my M2 with FMIC and boost pipe upgrades...
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11-05-2018, 06:42 AM | #16 | |
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11-05-2018, 08:17 AM | #17 |
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Definitely as OEM inlet pipe ID is sized matched to smaller F series PWG compressor. Having an inlet with a larger ID, which either matches or exceeds larger EWG compressor, in theory at least, allows a greater volume of air to be drawn in easier on the compressor side of the turbo.
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11-05-2018, 08:20 AM | #18 | |
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11-05-2018, 08:29 AM | #19 |
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Not yet but the intention is do a base line dyno before installing inlet/boostpipes/FMIC/GFB DV/NGK NGK SILZKBR8D8S (97506) plugs and F'speed DP install. Then go back on same dyno to see what I have with stock tune ahead to adding a stg 1 or 2 tune.
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