Saturday, September 26, 2020
Tour of the "Subaru Wall"
Tuesday, September 15, 2020
Intercooler Shroud Project - Part 3
On the one hand, it's been a long time since I revisited this project on my blog. On the other, I literally have done almost nothing new with this project anyways! However with the questions I get about this and the minor adjustments that admittedly do need to be made, it's time to give this some attention again. This is a custom-built aluminium intercooler shroud that a friend helped me build at his fabrication shop. It is designed to mount directly to the stock STI intercooler and has been measured to fit under a ViS Racing Carbon Fiber hood for a 2015-2020 Subaru WRX STI.
Does it work?
Indeed it does! While I don't have a way to gauge if this is an improvement over the stock intercooler shroud, this piece was built more out of necessity. The ViS Racing Carbon Fiber hood does not have any sort of ducting underneath to direct air to the intercooler. So, while the hood scoop itself is larger and there are vents on the side for additional cooling, the air is blown all over the engine compartment instead of directed through the intercooler like it should. I did notice that temperatures were running higher and boost was not coming on as strong as it would, which was my first indication that the hood was actually hindering performance instead of helping it. When we built this Intercooler Shroud those issues went away and the car performed normally.
Can I buy one?
That's the plan! But, as of this article, I have not built any others just yet. There are some minor clearance issues that I have noticed over time that have started to wear into both the hood and the shroud, so we'll make adjustments on this initial shroud, make the adjustments in CAD, and hopefully build a few more for those who have this same issue. However, because this is designed to work with a stock STI intercooler with this specific kind of hood, the application for other Subaru models and years will be different AND will also be different for other kinds of hoods, too.
When will you make them?
I have no idea! Could be tomorrow. Could be next month. Could be next year. I'm a busy guy and while the minor issues the shroud has are enough to stop me from attempting to mass produce these for general sale to the public, they aren't enough of an issue to keep me running it on my own car. I just finished a bunch of upgrades to my STI (for which a full write-up is coming soon) so it would be nice to tackle this next. I just need to find time to meet up with my Fabrication Friend and get crackin on it!
Stay tuned for more!
Tuesday, August 11, 2020
The Forester tS Project
It's no secret. The US automotive market misses out on some pretty cool cars. Even cars that are offered here have special editions and performance model versions of the standard stuff we normally get are skipped here. So when I found out that the Forester would no longer be offered in the US with a turbocharged engine option, I knew we'd be keeping our 2018 Forester XT in our stable a little longer. And when I found out Japan has a "tS" model of the Forester, I had an idea of what to do with our family hauler.
The Forester tS Project
In Japan, there are several tS models that have been made over the years. "Tuned by STI", these tS models don't typically enhance the engine package like the full STI treatment gets, but are more focused on suspension, aerodynamics, and other things to sharpen the focus on performance. In the case of the JDM Forester tS includes uniquely-tuned dampers and coil springs, lowering the ride height by 15 mm, 19-inch Enkei wheels, and Brembo brakes with four-piston calipers at the front and 2-piston calipers at the rear. There's also a slight body kit that adds some definition to the lower portion of the bumpers and side skirts. Inside there are upgrades such as the STI logo on the leather-trimmed steering wheel, CVT gear knob and instrument gauge, leather and suede trim, red stitching, STI embroidery on the seats, red STI push-button start and black roof liner.
Most of the items are dress-up related. What caught my attention was the suspension and braking upgrades that could improve the driving dynamics of our USDM Forester XT. For transforming ours to earn the "tS" badge, I'm combining the parts list of the Japanese Forester tS with some "sensibility" for our family's daily use. I don't want to sacrifice ride quality, especially given the local roads where I live, but I do want to sharpen up the handling. A little extra flair outside could be fun, too... but I don't want to go overboard and invite challengers at every red light.
Round one for our transformation is adding a little of both. In the styling department, we've switched to a Sport Grille up front, a "tS" badge replacing the "XT" badge on the rear tailgate, and some quad-tipped exhaust borrowed from my STI. Also borrowed from that car is a stiffer rear sway bar that replaces the thinner one from the Forester quite nicely. I've already noticed in hard cornering that the front end doesn't understeer as easily and the whole car seems to stay more planted in the curves. It's been a nice improvement to the driving dynamics and the extra touches outside have helped give it a little more presence in a sea of Crossovers on the road. Plus the primary driver (my wife) doesn't seem to mind the improvements, which means I haven't sacrificed comfort in the name of performance either.