Those famous Nürburgring Porsche racing heroes have unveiled a Manthey Porsche 997 GT3 4.4-litre upgrade engine conversion for GT3 models.
With increases of up to 80Nm and 95hp available versus stock-engined Porsche 997 GT3s, Manthey’s 530 engine kit includes a redesigned crankshaft. It’s the most powerful engine upgrade package offered by the Nürburgring 24-hour winners.
Olaf Manthey Porsche 997 GT3 Engine Conversion
“Serious engine construction involves craftsmanship far in advance of simple engine map reprogramming,” explains Olaf Manthey. “It is important for a 24-Hour winner to say that engine design and development is done in-house, with no external knowhow. Using Manthey designed and race proven parts is the only way I can hold my head up high, saying “our team did that.” Those driving with one of our engines in the back of their GT3 know that Manthey power is a very special feeling.”
Manthey offers smaller upgrades, adding up to 35hp to early GT3s. The full range of Manthey products can be seen on the Porsche Racing website. JZM Porsche in Hertfordshire is the company’s official UK distributor and the JZM engine rebuild workshop is a very busy place. Technical Director Steve McHale will no doubt relish the prospect of building a 4.4-litre engine this year.