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Old 05-11-2014, 07:36 AM   #10
Bellipotens
Scooby Specialist
 
Member#: 380646
Join Date: Feb 2014
Chapter/Region: Tri-State
Location: Queens, NY
Vehicle:
2015 WRX Premium CVT
DGM

Default

Initial Tune info

Orange is Stock tune with STI cbe
Purple is Stage 1 tune with STI cbe
Red is Stage 1 retune with STI cbe and Mishimoto CAI


THE GOOD

On the upside, with the supplied cone filter (a <6" long, 3" ID Dryflow filter will work too in place of the oiled element) the intake allows the turbo to pull in more air between 1.5-3K RPM and 4.2-5K RPM. Coupled with a re-tune, this results in a 40-55ft-lbf wTQ gain from 2-3K RPM and 20ft-lbf from 4.2-5K RPM, plus a marginal 6-8 peak wHP gains over a Stage 1 tune without the intake.

There is little that can be done to further optimize things beyond a Stage 1 tune from 3.4-4K RPM and at the top-end 5.4K+ RPM, but that's somewhat expected - especially up top.

The silicone couplings do not collapse even with 19-20psi target boost.

THE BAD

Out of the box, the Mishimoto intake is NOT a good idea for either a stock or a Stage 1 tuned 2015 WRX (6MT or CVT) without a re-tune. Running is as-is can be dangerous, not just long term but in a relatively short term.
The intake, and specifically the MAF location coupled with the intake design cause erratic MAF (g/sec, cfm) readings at idle and at low and mid RPMs. This in turn causes the long and short fuel trims to be all over the place (typically adding fuel as the car detects lean conditions while commanding slightly richer AFRs). And on this car, power is not made by leaning out the air fuel mixture.

THE UGLY

The MAF location on the intake is also a restriction, to a degree dictated by the stock MAF location and cable length.
However, if Mishimoto was able to move the MAF sensor down along the fender onto the elbow section of the tube, it would be a far better location for it. With good air mass readings at both idle, low RPM and under WOT at high RPM and potentially no MAF pegging at Stage 2 and beyond. As-is, its possible to peg the MAF sensor at 300g/sec at 4K RPM and up with a well flowing filter element. And MAF extrapolation and scaling beyond the stock limit is not yet possible on the 2015s.

A small addition but in my opinion worth it and does make a difference

Silicone License Plate Frame

Link to product:

https://www.amazon.com/License-Plate.../dp/B07SNS4X46

Nicely hugs the entire license plate around the edges.
Will protect the paint from the license plate as it covers all around.

Make sure to install with the drain holes pointing down (are found on one of the long edges of the cover to allow water to escape)

Very pleased with this product. Good quality and very easy install.
Enjoying the look. Small thing but makes me happy





B]Top Post Battery Master Disconnect Switch
[/b]

So with Bellipotens 2 around I have been driving a bit less. Of course as he ages this will change. I also stopped commuting to work with my car.
Another thing that has changed is I moved out of spot where my car was able to be trickled deep charged when not in use. Thus I looked for a
new method to prevent battery death in very cold weather. I had something similar on an older car so gave this a shot and it is great - well for me with regular key entry etc.

Easy to install and made in our might USA.

The red cables you see are to easily access my permanently attached trickle charger from optima.

I disconnected the battery through the master disconnect switch right before the very low temps in the past two weeks here in NYC. For 2 weeks I did not drive the car.

Upon inspection when I turned everything on.... 2 weeks later... the battery is fully charged and well!!

Just wanted to share this method that some might find as useful as I did with my various life changes. Special thanks to my brother Perscitus!


Link to product:

https://www.amazon.com/Post-Battery-...a_aw_oh_bia_dp


Product description:
With our Top Post Battery Disconnect Switch a simple twist of a knob provides a convenient way to quickly disconnect and reconnect power
from an automotive battery. The switch provides a clean, solid, low profile connection to your car, truck, boat or RV battery.
The switch makes it simple to disconnect your battery to work on your vehicle or the knob can be removed to prevent theft.
It also works great to eliminate battery drain if you're storing a vehicle for an extended period of time.
Tested to exceed a continuous 200 amp load. Easy to Install Instructions: Disconnect ground (-) cable from battery and attach it to switch mounting post.
Attach clamp end of switch to (-) battery post. Turn black knob fully clockwise to connect battery power.
To disconnect power, turn knob 1/4 turn counter clockwise. Knob can be removed for anti-theft.
Keep connections clean and tight to assure optimum performance.




* Registered users of the site do not see these ads.

Last edited by Bellipotens; 04-10-2020 at 11:43 AM.
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