Spinning Your Wheels: Here's Why Dyno Results Are Incomplete and Useless

The release of the Civic Type R has created a lot of buzz. The recent media launch generated plenty of opinions as to its performance, including some reviewers who believe Honda has underrated the CTR in the same manner it has done with the Accord V6 in the past.

Their speculation seemed to be proven true as a video released from a shop in Puerto Rico showed the car making 301 wheel horsepower. Many outlets reported on the dyno test and, while some showed the data with a little skepticism thrown in, others went all in and told us that the CTR has hidden horsepower.

The real truth behind the dyno test is that it is valueless. We do not have any data on its calibration or the weather, and the dyno operator could have applied any correction factor on the data to boost the results. This is not an isolated case in reporting sketchy dyno results, as I see it multiple times per month from various outlets and, in just about every case, the data and reporting are meaningless.

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Piston Slap: Focusing on Turbo 93 Octane Tunes?

Mark writes:

Sajeev,

Thanks for the recent advice on winter tires & wheels for my new Focus ST. I took delivery of the car two weeks ago and I’m having a blast. The first thing I did when I got it home was take Bark M’s advice and sign up for the Octane Academy.

So here’s another question: What’s your take on fuel octane and the ST?

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  • Dartman https://apnews.com/article/artificial-intelligence-fighter-jets-air-force-6a1100c96a73ca9b7f41cbd6a2753fdaAutonomous/Ai is here now. The question is implementation and acceptance.
  • FreedMike If Dodge were smart - and I don't think they are - they'd spend their money refreshing and reworking the Durango (which I think is entering model year 3,221), versus going down the same "stuff 'em full of motor and give 'em cool new paint options" path. That's the approach they used with the Charger and Challenger, and both those models are dead. The Durango is still a strong product in a strong market; why not keep it fresher?
  • Bill Wade I was driving a new Subaru a few weeks ago on I-10 near Tucson and it suddenly decided to slam on the brakes from a tumbleweed blowing across the highway. I just about had a heart attack while it nearly threw my mom through the windshield and dumped our grocery bags all over the place. It seems like a bad idea to me, the tech isn't ready.
  • FreedMike I don't get the business case for these plug-in hybrid Jeep off roaders. They're a LOT more expensive (almost fourteen grand for the four-door Wrangler) and still get lousy MPG. They're certainly quick, but the last thing the Wrangler - one of the most obtuse-handling vehicles you can buy - needs is MOOOAAAARRRR POWER. In my neck of the woods, where off-road vehicles are big, the only 4Xe models I see of the wrangler wear fleet (rental) plates. What's the point? Wrangler sales have taken a massive plunge the last few years - why doesn't Jeep focus on affordability and value versus tech that only a very small part of its' buyer base would appreciate?
  • Bill Wade I think about my dealer who was clueless about uConnect updates and still can't fix station presets disappearing and the manufacturers want me to trust them and their dealers to address any self driving concerns when they can't fix a simple radio?Right.