Fully built 95R with a itty bitty turbo
#23
Boost Czar
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Dynojets are consistent. and we had run like 20-30 different miatas on the same dyno -- so it wasn't a fluke/fake number.
I think Tim's manifold was just a great pairing to that turbo -- the BEGI IM helped a butt ton too.
#25
we repeated it on Ed's 97. same absurdflow manifold, begi IM, and TB. stock motor. 93 pump. he was running like 14-15psi and made 270rwhp on the dynojet. nearly identical plot -- ill have to look for it.
Dynojets are consistent. and we had run like 20-30 different miatas on the same dyno -- so it wasn't a fluke/fake number.
I think Tim's manifold was just a great pairing to that turbo -- the BEGI IM helped a butt ton too.
Dynojets are consistent. and we had run like 20-30 different miatas on the same dyno -- so it wasn't a fluke/fake number.
I think Tim's manifold was just a great pairing to that turbo -- the BEGI IM helped a butt ton too.
#30
Former Vendor
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Speak for yourself, please. Dynojets are inherently accurate when compared to pretty much every other dyno. They measure power based on known constants and physics, and calculate torque using an RPM pickup. Virtually every other style of dyno uses a calibrated load cell to measure torque and calculates horsepower based on wheel speed and gear ratio and/or RPM pickup, and there is inherent error in that calibrated load cell. Compare two Mustangs or two Dynapacks across the country and they can read wildly differently. Compare two Dynojets on an SAE correction and they are going to be the same within 2% every time (if the weather station is set up right).
#36
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Fair enough. Dynojets are accurate. There are other dynos which are more precise. They each have their place, and I use one or the other depending on what my goals are. What annoys me is when people who don't understand physics say that Dynojets "read high". No, they don't. They read accurately. They measure power directly by seeing how long it takes to accelerate a drum of a known mass and size from one speed to another, higher, speed. Accelerating the drum is doing work, the time it takes to do that work is power. Do a little unit conversion and you have horsepower.
#39
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Fair enough. Dynojets are accurate. There are other dynos which are more precise. They each have their place, and I use one or the other depending on what my goals are. What annoys me is when people who don't understand physics say that Dynojets "read high". No, they don't. They read accurately. They measure power directly by seeing how long it takes to accelerate a drum of a known mass and size from one speed to another, higher, speed. Accelerating the drum is doing work, the time it takes to do that work is power. Do a little unit conversion and you have horsepower.