DrumPreserve

08/27/2023

An unnamed but well known racer came to DTR to verify is drum of SR18’s RVP before heading to HayDays race. Like all homemade testers, his read about one PSI higher that our Koehler commercial test unit due to expansion of air in the chamber during heating. So he purchased five gallons of Isopentane for $150 to bring his drummed fuel exactly up to as-blended spec—matching the perfect max HP fuel he used in prior dyno and field tuning.

04/24/2023

07/13/2021

https://youtu.be/uANasm4Z49I

DrumPreserve.com assistant Jim Czekala explains the fail-safe features of their nitrogen drummed fluid dispensing and protecting systems. 55 gallon steel dru...

11/20/2020

People often come to DynoTechResearch to test and tune with fuel that is very stale, having lost its “front ends” due to unpressurized storage in drums. We test the fuel’s RVP and if it is much lower than spec, we add Isopentane (the front end chemical that creates volatility). Volatility is as important as octane when it comes to making maximum HP.

07/19/2020

The presence of the fuels’ “front ends”—usually Isopentane and butane—create the RVP of the fuel. To make maximum HP, fresh high RVP fuel appears to need leaner A/F and more re****ed timing compared to stale low RVP fuel which needs richer A/F ratio and more advanced timing for max HP. If you tune an engine on fresh high RVP fuel then you must run exactly the same RVP fuel or power will be lost. Always keep nitrogen pressure on your drummed fuel to prevent the loss of Isopentane or butane that in the absence of head pressure, evaporate constantly at room temperature.

04/28/2020

Use dry nitrogen to preserve and dispense drummed liquids. The DrumPreserve system includes a custom billet machined b**g assembly with stainless steel locking dispensing valve that fits standard VG2 drum openings. Included is a specially manufactured low output pressure nitrogen regulator for precise control at low pressure. The system also has a 10psi safety relief valve that has much higher flow rate than the nitrogen inlet valve--this failsafe feature prevents overpressurizion of the drum due to operator error. As little as 3 to 5 psi of nitrogen pressure can eliminate the evaporation of volatile liquids such as the butane and isopentane in race fuel. Those front end components continually and gradually evaporate from race fuel in sealed but unpressurized drums when headspace is present. As the front end components are gradually lost from the fuel, RVP is reduced and A/F ratio and ignition timing required for maximum HP changes dramatically.

04/28/2020