{"id":53164,"date":"2026-08-13T08:35:24","date_gmt":"2026-08-13T06:35:24","guid":{"rendered":"https:\/\/www.italpassion.fr\/?p=53164"},"modified":"2026-08-13T08:35:24","modified_gmt":"2026-08-13T06:35:24","slug":"stellantis-new-6-cylinder-engine-has-already-surpassed-the-v8-in-performance-it-is-now-taking-on-its-last-remaining-advantage","status":"publish","type":"post","link":"https:\/\/www.italpassion.fr\/en\/stellantis\/le-nouveau-moteur-6-cylindres-stellantis-a-deja-depasse-le-v8-en-performance-il-sattaque-maintenant-a-son-dernier-avantage\/","title":{"rendered":"Stellantis' new 6-cylinder engine has already surpassed the V8 in performance; now it's taking on its last remaining advantage"},"content":{"rendered":"
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A few days ago, Stellantis<\/a> revealed just how far it could go its new Hurricane six-cylinder engine<\/a> : 600 ch in the Dodge Charger Super Bee, achieved in part through the use of larger turbochargers. But larger turbos generally mean longer response times. This is precisely the problem that SRT engineers now aim to tackle with a technology called eBoost Air.<\/p>\n\n\n\n

The idea is fairly simple on paper: keep large turbochargers\u2014capable of delivering plenty of air at high RPMs\u2014while regaining the immediate response at low RPMs that was part of the appeal of Dodge\u2019s older supercharged V8s.<\/p>\n\n\n\n

An electric compressor to wake up the turbos<\/h2>\n\n\n\n

Unlike certain technologies already used by Mercedes-AMG or Porsche, eBoost Air does not directly integrate an electric motor into the turbocharger. SRT chose to install a separate electric compressor upstream of the two turbos on the 3.0-liter Hurricane. When the driver floors the accelerator at low RPM, a bypass valve directs air to this supercharger. It immediately creates positive pressure in the intake, thereby helping the conventional turbochargers spool up much more quickly.<\/p>\n\n\n\n

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Once the exhaust gases generate enough energy to drive the turbos, the electric compressor is no longer needed: the intake system then returns to its conventional operation. According to SRT, the system thus allows boost to be maintained over a much wider range of engine speeds and virtually eliminates the notorious turbo lag.<\/p>\n\n\n\n

10 psi in just 0.65 seconds<\/h2>\n\n\n\n

And the initial figures give a better idea of the system\u2019s benefits. According to tests conducted on a prototype equipped with the Hurricane, eBoost Air is capable of delivering approximately 10 psi\u2014or 0.7 bar of pressure\u2014to the intake just 0.65 seconds after a firm press of the accelerator.<\/p>\n\n\n\n

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The prototype used by SRT even produces 630 ch and 810 Nm of torque, compared to 550 ch and 720 Nm for the base engine. Keep in mind, however, that eBoost Air does not directly generate this additional power. This increase stems primarily from a new engine calibration and mechanical modifications, with the electric supercharger mainly serving to improve low-rpm response. The ultimate goal is quite straightforward: to give the twin-turbo six-cylinder engine the linear and immediate response of a supercharged V8, without sacrificing the efficiency and power potential of the turbochargers.<\/p>\n\n\n\n

A technology developed in just seven weeks<\/h2>\n\n\n\n

SRT claims to have gone from concept to a working prototype in just seven weeks. The experimental system currently runs on a small 48-volt, 1-Ah battery, powered by a DC-DC converter and a reinforced 12-volt alternator. Other energy storage solutions, particularly those based on capacitors, are already being explored.<\/p>\n\n\n\n

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A post shared by DragTimes \u2013 Brooks Weisblat (@dragtimescom)<\/a><\/p><\/div><\/blockquote>\n