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We lately reported on what RENNTech calls the biggest displacement V12 on file for the Mercedes Benz M120 engine. The naturally aspirated 7.6-liter V12 with its 615 hp (458 kW) is simply the icing on the cake of what’s a very beautiful bespoke tremendous sedan within the S76R. We have been so mesmerized by it that we reached out to RENNTech with questions and so they gave us particulars you gained’t examine elsewhere.
This isn’t simply an previous W140 S-Class with a giant tuned engine inside instead of the 6.0-liter unit that used to make 402 hp (299 kW). It’s a customized creation RENNTech constructed for a buyer and as an illustration of simply what the agency is able to. It comes full with a bevy of supporting modifications like stronger connecting rods, higher brakes, and a totally new exhaust system.
RENNTech’s Lars Totterman instructed us that each efficiency improve within the S76R can be lighter than the OEM half. The carbon ceramic brakes, the exhaust, and the suspension are all included in that checklist of elements. RENNTech says that every particular person 92 mm piston with its titanium connecting rod is 358 grams lighter than OEM. Multiply that by 12 cylinders and also you get a financial savings of 4.3 kg (9.4 lbs).
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Regardless of these important adjustments, weight discount wasn’t the primary aim of this automobile in accordance with Totterman. “As a efficiency firm decreasing weight is at all times our aim, nevertheless with the S76R our aim was not a light-weight sports activities automobile slightly a automobile that preserves the vault like character and planted really feel of the W140 S-Class,” he defined. He went on to say that the one time passengers hear the engine from contained in the cabin is when it’s pushed up above 3,500 rpm.
We additionally requested about efficiency figures, like prime pace and 0-60 instances, which RENNTech says are coming sooner or later. For now, it’s in the midst of its break-in interval so high-stress checks like that must wait. It believes that it’ll do the dash within the low 5-second vary and prime out someplace round 155 mph (250 km/h).
Lastly, we questioned in regards to the buyer’s alternative of a five-speed computerized transmission. Totterman says that the extra energy created by the 7.6-liter V12 was merely an excessive amount of for the unique 4-speed to deal with. The 5-speed is way more succesful and has higher ratios, he mentioned. RENNTech can be pleased to construct an S76R with a 5- or 6-speed guide transmission ought to a buyer fee one. That additionally applies to the 6.0-liter V8 builds that the corporate creates.
You may check out the gallery proper beneath documenting the construct. It supplies clear proof of simply how meticulous the S76R’s engineering actually is.
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