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The first of these challenges took place on Friday afternoon and was hosted by none other than UMS tuning. UMS is an Arizona based tuning shop known for turning out some very fast cars and for the time attack series they host locally. Global Time Attack series competitor and technical director Tony Szirka is one of the brains behind UMS and the crew did an awesome job getting all of the cars on and off the dyno. The purpose of the dyno was to not just belt out the most horsepower but also to take decibel and emissions readings.
Here are the specifics on how the car was judged taken from Modified Magazine.
“Dyno & Emissions Competition: Since this is a non-timed event, we will be using our usual ‘Power Under The Curve’ method. For the purposes of this competition, we define this as the sum of all HP readings produced on the dyno in 100 RPM increments for the best 3,000 rpm range for your engine. By totaling power in this way, we will be evaluating how much useable power each engine produces in the RPM range it’s most likely to be operating in during the timed events.
Example: The most powerful car posts a power under the curve value of 20,000 HP (in its best 3000 RPM range in 100 RPM increments). They are awarded 25 points for this part of the event. Your car posts 18,000 HP under the curve. As a result, your car will be awarded 22.5 points (18000/20000*25) for this part of the event.
Emissions Test: While your car is still on the dyno (immediately after your final dyno run), we will measure HC and NOx using a 5-gas tailpipe analyzer. The test will involve a 90-second idle test followed by a 90-second 3000 RPM 100 lb/ft (as measured on the dyno) test. We will be using the EPA’s Teir II Bin 8 standards (the most generous of existing standards) to define our pass/fail mark, with a pass resulting in 5 points and a fail resulting in 0 points. Your vehicle must pass both the HC and NOx standards to be awarded 5 points.
HC standard: 18 ppm
NOx standard: 20 mg/m3
Exhaust dB Test: Once the emissions test is complete we will measure exhaust dB the same way the state of CARB does, which has a legal limit of 95 dB (this standard is applied in California and 16 other states). Just like the e-test, if you pass (by registering an exhaust dB of 95 or lower), you will be awarded 5 points. If your car fails this test, 0 points will be awarded.
As per CARB standards, the dB meter microphone shall be at the same height as the exhaust outlet and no closer to the pavement than 8’’ when the exhaust outlet is lower than this height. The microphone shall be positioned with its longitudinal axis parallel to the ground, 20’’ (+/- 1’’) from the nearest edge of the exhaust outlet and 45 degrees (+/- 10 degrees) from the axis of the outlet. The engine shall be at a normal running temperature with the transmission in neutral. The test shall be made at an average steady-state engine speed of three-quarters of maximum rpm.”
Dyno + emissions + dB (35 points possible)
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| Ken Suen's “Big Red” is a Mugen RR inspired 2008 Civic Si brought to life by Sportcar Motion and Godspeed Project. Since only 300 Mugen RR's ever came off the assembly line, this is a replica kit. Tein Mono-Flex coilovers, Godspeed Project V2 rear camber kit, and Ultra Racing sway bars and braces keep this baby planted on the track. |
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| The K20 powerplant has been worked over to become a serious contender in time attack events with a K20Z3 Head, drag cartel Stage 4 Cam, Supertech Valves springs and retainers, K24A4 Block, 88mm Bore (Stock Sleeve), CP Piston's (12.5:1) and Carrillo Rods all exhaling through a Skunk2 header and a one off Berk Exhaust. Gearspeed built the transmission including carbon synchros and Kaaz LSD. Engine management is provided by the Hondata Flash Pro. Car makes 292/220 on 91 octane and weighs in at 2,750 with the driver. Looking at Ken Suen I think that is 2,699 without driver! |
After competing in the dyno challenge, provided their cars were still intact, the team's next event was an autocross competition on Saturday morning. The course was laid out on a section of the Firebird West Test Track. The course followed a technical section and cones were used to create a non-optional slalom on the straight. Approximately 35-45 seconds in length it would challenge the cars and drivers by featuring more technical sections and force them to be patient and use their horsepower wisely.
Autocross (100 points possible)
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| Full Race's 240SX Skyline-afied and pulling out of the paddock after finishing the autocross. Their conversion kit keeps the car stealth; it's still a left hand drive car, but the kit has everything you need to slip in the AWD R32 drivetrain and double wishbone suspension system and try to tame Godzilla. Speaking of Godzilla this thing was spitting fire during its auto X runs. Let's hope it was in a good way… |
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The Full Race R14 uses a Borg Warner EFR turbocharger to replace the stock twin turbos. Their kit uses a twin scroll *internal-wastegate* exhaust manifold, 4″ V-band downpipe, S14 front mount IC, and ID 2000cc injectors – all controlled by ProEFI 128 standalone computer. |
