Sentences with phrase «increasing backpressure»

And second, the carbon deposits clog the pores in the ceramic catalyst and block exhaust flow, increasing backpressure and causing heat and exhaust to back up into the engine compartment.

Not exact matches

Flow is interrupted and backpressure in the exhaust system increases.

Peak power is now 490bhp (up 37bhp) while peak torque also increases to 372 lb ft, an increase of 14 lb ft.. These improvements have come from a new design of piston crown, improved mechanical efficiency thanks to a reed valve in the crankcase to evacuate oil and blow - by gasses, reduced backpressure from a redesigned 4 - into - 1 exhaust manifold and a reprogrammed ECU that exploits advances in the anti-knock properties of the latest petrol formulas.

Reduced air flow increases engine backpressure and can force heat and exhaust gasses back into the engine compartment.

In detail, the engineers achieved this boost in performance by adaptation of the engine control unit and the use of a new exhaust system, with a diameter ahead of the exhaust tailpipes of 65 instead of 55 mm, thus reducing the exhaust backpressure and increasing the performance.

The increase in power was made possible by the engine's improved volumetric efficiency through reduced intake load losses and by exhaust backpressures, together with optimized electronic control.