What are the benefits of a twin cam engine?
Benefits of a Twin-Cam Professional mechanics agree that the best way to improve engine performance is through good air flow through the cylinder heads.
Where are the camshafts located in a twin cam engine?
In a twin-cam engine, there are two camshafts inside the cylinder head, positioned above the cylinders. One camshaft is responsible for operating the intake valves and the other one operates the exhaust valves. The DOHC engine has several features unique to its design. For instance, the rocker arms are smaller or may not even be present at all.
What are the break points for a twin cylinder engine?
Both break points are used with a two bump cam ring for twin cylinder engines. This is perfect if the twin cylinder engine configuration requires two plugs to fire at 180° intervals such as in parallel and opposed cylinder engine layouts.
What should the end gap be on a twin cam engine?
To measure piston ring end gap, each ring was placed in its appropriate cylinder, and squared within the bore by pressing it into the cylinder using an upside-down piston. The acceptable end gap for a Twin Cam is 0.012 to 0.018 inches. The key to making a high-revving engine live is to establish the proper main and rod bearing clearances.
Can a Lotus twin cam engine be blueprinted?
Blueprinting is permitted by most stock class racing rules, and since it’s the only method to legally increase power, it has become virtually mandatory for front-competitors. This article contains many tips from Dave Bean, who is one of the country’s foremost experts on Lotus Twin Cam engines.
How does Dave Bean’s twin cam engine work?
Dave Bean’s swinging oil pickup is free to rotate 360o, and follows the oil around the bottom of the oil pan. It could be put off no longer. At 30% leakdown, the Europa’s Twin Cam engine was a shadow of its former self.
What’s the difference between a twin cam and Evolution motor?
The larger fins won out and compared to the Evolution motor, the Twin Cam has more than 50% greater surface area for cooling, even though it only has about 10% more displacement at 1450cc, or 88 cubic inches.