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William Au-Yeung and his 2012 Honda Civic Si qualifies an impressive 16th at the 2019 Pikes Peak International Hill Climb.

If there’s one entrant at the 97th running of the Pikes Peak International Hill Climb, you’re going to want to pay attention to it’s William Au-Yeung, driver of the Vibrant Performance 2012 Honda Civic Si, as he’s qualified 16th out of 58 entries this year.

If that name and car sounds familiar it’s because this Civic is fresh off taking the FWD Tsukuba Time Attack record in Japan earlier this year. With a time of 53.071, this boosted Civic got the attention of a lot of hardcore Time Attack fans unfamiliar with this Canadian-run operation. Will was so fast that the only car close enough to him was an AWD Mitsubishi Evolution 9 with their 51.119-second run.

Suffice to say, this Civic Si is wicked fast.

Here are a couple of shots of this Civic Si from earlier this weekend.

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Early Morning drive out to Tim’s ? 😁 Incredible shot from @fortuneautousa @larry_chen_foto And some Pikes Peak updates… Yesterday we were on the lower section for our Qualifying run – well half way through my Power Steering decided to stop working (now I know the feeling @richardboakeracing), I managed to manhandle the rest of the run, and put down a decent time, which sits us in 16th starting spot for the 97th running of PPIHC! 😁 Thinking the EPS was overheating, we added cooling to the power steering for today’s practice 3 (middle sector) running, and of course that wasn’t the case, and no power steering for our first two runs!! But we managed to isolate the issue, and was able to get a couple more runs with assist fully working again!! 😊 Tons of things that we’ve had to sort out, but we’re making progress every day! Last practice tomorrow, and then off to Fanfest to meet all the amazing fans! @vibrant_performance @competitionclutch @borgwarnerperformance @fortuneautousa @radiumengineering @raysmsc @hoosiertire @timhortons @kingbearings @antigravitybatteries @momentummotorsport @peracing @stoptech @eibach_world @aprperformance @onpointdyno @la_sleeve @project.mu @runbc @turbosmarthq @hybridracing @ron_davis_radiators @cometicgasket @vminjection @fuelsafe @motulusa @igniteracingfuel @osgiken @supertechperformance @ptpturboblankets @cp_carrillo @nikosigns

A post shared by William Au-Yeung (@pztuningwill) on

Fans familiar with this AWD and RWD slayer can spot the Vibrant Performance’s blue and white livery but for this special time attack into the clouds, Will commissioned a special all-white livery featuring Vibrant’s logo.

From what I can see, the aero package remains relatively unchanged since its time attack effort in Japan. I can only guest Will’s dialed the boost to compensate for performance in thin Colorado air.

Here’s a post from @OnPointDyno with what they’ve done to make sure Will has all the boost he needs at crucial moments of his climb without overpowering his tires with the massive horsepower his K-series makes.

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Will’s car has always had a fairly complex boost control strategy, as we’re tasked with managing traction on the front wheels in lower gears, ensuring we don’t produce excessive torque at high boost levels, lowering the boost if the engine gets too hot, along with having driver adjustable boost maps. Now we’ve added an entirely new layer on top of that, with the thin air that results as you climb Pike’s Peak. This is because as the ambient pressure drops the turbo needs to spin faster to achieve the target boost. Since a turbo has a maximum safe speed, we installed a turbo sensor and have added boost control limiting to keep the turbo riding at its maximum RPM in the thin air. We weren’t sure if we’d have the turbo speed sensor in time, so I backed out the turbo speed from the Borg Warner EFR compressor maps, as we’re able to deduct airflow from the M1’s volumetric efficiency engine model, and pressure ratio is known with ambient pressure and boost pressure. This simulated turbo speed is used as a fall-back to the turbo speed sensor in the event that it fails, and it proved to be very accurate. Without any number fudging it was within 0.2% at 110,000rpm! We could improve accuracy with pressure sensors mounted right at the inlet and outlet of the compressor, as pressure drops across the air filter and intercooler will affect this emulated speed. Since the turbo speed limit is a reactive control, we want to manipulate our target boost tables based on ambient pressure so that the turbo speed limit control doesn’t have to work so hard, and to result in smooth boost control and fewer turbo speed overages. #motec #neverstoptuning #pikespeak #ppihc #pztuning #borgwarner #vibrantperformance

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As mentioned, Will qualified 16th. If you’re wondering how competitive this FWD Civic is, consider that 15th is Rhys Millen running less than a second faster in a Bently Continental GT fully prepped and backed by Bently just for this hill climb.

Will’s running in the Unlimited Class.

A quick peek at the qualifying results shows that he’s 1st for FWD efforts with the next fastest FWD car being a 2010 Mazdaspeed 3 in 50th.

I fully expect this Civic Si to surprise everyone this weekend and put a lot of more expensive programs to shame!

With qualis over, race time starts Sunday at 7:30 A.M. Colorado time. 

What do you think about this one fast Civic Si? Let me know in the comments below!

 

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