In these times, where every engine in modern cars has overhead cams, why does Corvette still have push rods? This is a common question we get from new Corvette buyers. Is it because GM is slow to change, or is there a good logical reason?
When you look at the push rod design, you can instantly notice a few things. #1 the engine is not as tall as an over head cam engine. #2 the engine is shorter. #3 it is less complicated. It turns out a push rod engine, can also produce a lot of low-end torque, this is what makes a car accelerate, and is a good thing for sports cars. The downside is that the red line is lower.
Other advantages of a push rod engine is that they are simpler, less expensive to produce and sit lower in
dodge demon zr1 drag race
There’s a lot of talk, and videos, popping up on the internet about the 2019 ZR1 these days. New owners are mounting cameras and taking them to Dynos, Race Tracks and Drag Strips and GM is testing at Nurburgring.
Since they were already in Germany, GM decided to make the 240-mile trek to ATP Automotive Testing Papenburg, one of the largest proving grounds in the world and one that has miles upon miles of straight track looped together with banked curves at the end.
To establish an official top speed, a vehicle must make two passes on the track, one in each direction to correct for the wind. The top speed is the average of the two speeds. The 2019 ZR1 hit 214.88 mph in one direction and 210.20 going the other way around, setting an official top speed of 212.20 mph!
The 2019 Corvette ZR1 has been filmed lapping the demanding Nurburgring Nordschleife in Germany.
It seems General Motors itself was testing the ZR1 at the Nurburgring, as the car was fitted with a Michigan manufacturer’s license plate. The Nurburgring was also recently closed down for industry pool testing, which is when the world’s automakers bring out their latest products to test on the fast and undulating 12.9-mile circuit.
Corvette chief engineer Tadge Juechter has already said his team would like to lap the Nordschleife in under seven minutes with its 755 hp ZR1. Chevy hopes to have completed the sub-seven minute lap shortly after the car goes on sale this spring, so it’s likely that Chevy was gathering data with this test car in preparation for the actual lap.
Compared to the C7 Corvette Z06, the ZR1 boasts more power, more downforce, better cooling and also benefits from extra sticky Michelin Pilot Sport Cup
