Heads up about a dyno shop in Phoenix I visited last weekend

I stopped by a place called Desert Speed off the I-17 last Saturday to get some baseline numbers on my 2018 3.5L. The guy running it seemed cool at first but I noticed he was rushing through the pulls real fast. Didn't even let the truck cool down between runs and the numbers were all over the place. My buddy ran his 5.0 on the same dyno a month ago and got way lower numbers than expected too. They've got a shiny website and a bunch of race cars out front but something feels off about how they run things. I'd double check your results if you've been there or ask them to show you the full curves before you pay. Has anyone else had a bad experience with a shop that tried to rush through a dyno session?

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irismartinez3mo ago

That sucks man, I feel you on this. A buddy of mine took his 2017 Mustang GT to a shop in Tucson called Vroom Dyno last year and they pulled the same stunt, three back to back pulls with maybe a 30 second break in between. His numbers came out like 30 hp lower than what Ford claims stock and the owner just shrugged it off. The thing about rushing pulls like that is it heats up the intake air and the oil, which screws with the timing and makes the engine pull power. I always ask now for a printout of every single pull with the temp and pressure readings at the time, if they can't show that I don't pay. Did you get a chance to look at your air fuel ratios on those runs?

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ellis.mia3mo ago

Bringing your own wideband sensor and data logger next time lets you catch the real story without relying on their printouts.

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