We have done 9 years of dyno testing up here with Greg & Seb.
We have tuned over 100 Z cars, over 50 of those were Z32s.
We tune the same cars on multiple fuel tunes at the same dyno session.
We have logged boost, A/F and depending on the sensor setup, IAT and EGT.
We have tuned on:Esso 91 (10% ethanol)
Shell 91
Hughes 91 (10% ethanol)
Exxon 92
Chevron 94 (no ethanol)
Petro-Canada 94 (10% ethanol)
Mohawk 94 (10% ethanol)
Aviation Fuel 100 octane (no name)
Alberta Fuel Dist. 105 Race Fuel
VP Racing 109
VP Racing Q16
E85 blends from commercial pump
E85 blends direct from suppliers blended down from E98 on site. We rely on Greg and Seb's expertise in tuning to determine if a fuel is good or not. We have no interest in skewing results, only maximizing the power and response for a given car and mods with the fuel. If they tell us the fuel is shit after a few dyno pulls, they explain why and show us. I and the Amateur Z crew, many who are members here have been directly involved in the dyno tuning, changing fuels on the cars on the dyno, talking with Greg and Seb about results and ways to improve as the car is idling behind us. Stanky has tuned with us twice and his conclusions are from direct tuning experience on the Chevron fuel. We found that the 94 pump no ethanol fuel was detonating at about the same level that Shell 91 was. We have also found that different stations selling the same fuel can give different results. We pumped out 94 Petro Can fuel that was detonating at 91 levels and replaced with 94 from a different Petro Can... car was able to boost higher and detonation threshold increased. I have hundreds of dyno charts and have posted yearly on this site with results based on car, mods fuel type and conditions that year. Claims that the 'car runs better on x' with no measurable or quantifiable backup is ridiculous. So is creating a theoretical 'perfect' test condition and disregarding any result that doesn't meet that imaginary standard. Cheers.
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