Is afterfire bad for your car?
It’s called an afterfire. If it truly were a backfire, your motor would definitely be in some trouble. The only real harm that I know of that can come of afterfires, other than the harrassment of the police, is the browning of the paint on your rear bumper.
What can I do to improve my intake and exhaust system?
Aftermarket air filters, cold air intakes, and aftermarket exhaust systems are all great intake and exhaust upgrades that can add oomph to your engine. Tuesday, May 11, 2021 Latest:
Why are intake and exhaust timing peaks different?
If a spec header is involved and you’re not comfortable with discreetly modifying pipe dimensions, consider the possibility of different cam timing in cylinders whose intake and exhaust timing peaks differ due to unequal port or pipe cross section or length.
What’s the formula for C / S in an exhaust system?
This suggests erring on the small side of primary pipe selection to preserve velocity with the minimum c/s required to service cylinder volume at peak torque; hence the formula for c/s area based on engine speed, cylinder volume, and VE.
How big is the exhaust pipe on a Harley Davidson?
The stock exhaust pipes are rather restrictive, although they are not nearly so bad as many people think. Simply drilling a 1 to 1.5 inch hole through the baffles of the stock Harley pipes makes about 93% as much horsepower as the best pipes, and more horsepower than a rather embarrassing number of after market pipes.
How is the intake stroke compressed in an engine?
In the compression stroke, in both type of engines the input from the intake stroke is compressed in the cylinder by a piston till the cylinder head.
Why are cylinders 4 and 7 fired in different firing order?
Swapping cylinders 4 and 7 in the firing order eliminates the fuel distribution and heat problems caused by cylinders 5 and 7 firing in succession. With the revised firing order, the two end cylinders don’t have to fight for fuel from the manifold plenum.
How does a single plane intake manifold improve engine performance?
By strategically relocating these companions, it’s possible for the engine to idle and run smoother, to reduce isolated hot spots (cylinder-to-adjacent-cylinder walls) and to even out fuel distribution, primarily in applications that feature a single-plane intake manifold, and even more noticeably in tunnel-ram intake manifold applications.
When to set intake and exhaust valve lash?
Set the intake valve lash when the exhaust valve is beginning to open. This will put the intake lifter at the base circle which is where you want it to be. Then set the exhaust valve lash when the intake valve is about halfway down on the closing side.