What is the benefit of Tri-Y headers?
Invented by Doug Thorley Headers, the Tri-Y header is designed to match the synchronization of the engine firing order, thereby maximizing exhaust scavenging. This design creates the optimum torque and greatest horsepower gains in comparison to any other design.
Are Tri-Y headers long tube?
They’re the go-to design for most hot street and race cars. Tri-Y Long-Tube: Tri-Y headers came to popularity when they were used by Shelby for the GT350 Mustangs.
Do Tri-Y headers make more power?
Tri-Y style headers do a good job maintaining flow velocity. Exhaust from one tube rushing past the “Y” can help scavenge air from the other tube. Tri-Y headers often make better low-end torque than similar 4-1 headers.
Who makes Tri-Y headers?
Doug Thorley Headers
For 60 years, Doug Thorley Headers has been making premium American-made components and the Tri-Y has led the charge. Modern engines have improved their designs and still, the DTH Tri-Y is able to pull 25-30 extra horsepower and 35-40 pound-feet of torque out of them.
What headers are best for torque?
Shorty headers deliver better low-to-mid-range torque. Medium and long-tube headers allow an engine to make more horsepower at high rpm. The 4-into-1 is the traditional long-tube header most of us are familiar with—four primary tubes carefully bent and channeled into one collector.
How do tri Y headers work?
The NPS Tri-Y header produces Compressed High Velocity Exhaust Gas by using small-short pipes and a megaphone collector. This produces a much higher vacuum than other headers and pulls a larger intake charge into the engine.
Are stepped headers better?
Stepped versus Straight Tubes In racing applications, stepped-tube headers are preferred because they can help improve scavenging and broaden the torque curve.
What are 180 degree headers?
Often termed a 180-degree header, this configuration makes the firing cycle seen by each collector occur 180 degrees apart, improving scavenging as well as low- and midrange torque by permitting a smaller collector outlet diameter than normal for a given combination.
Can you put headers on a diesel?
Registered. You can run headers on a diesel…..if it is naturally aspirated. The exhaust in our trucks goes to the turbo before it goes out the tail pipe.
Whats the best brand of headers?
Popular Exhaust Headers
- Doug Thorley Headers.
- PaceSetter Headers.
- Hooker Headers.
- Gibson Headers.
How much HP gain from headers?
Small Block Chevy engines can also benefit a lot from headers, especially since their stock exhaust systems tend to be weak. If you’re wondering how much horsepower do headers add to a 350, it’s about an extra 16 hp for long tube headers.
What size headers do I need?
Recommended Header Primary Tube Diameter
|Horsepower Output||Primary Diameter|
|200-325 hp.||1 1/2 in.|
|275-425 hp.||1 5/8 in.|
|400-500 hp.||1 3/4 in. or 1 7/8 in.|
|500 hp. or more||2 in. or larger|
What does 180 degree firing order mean?
In a 180 degree firing system, the cylinders move in opposite directions. This means that when one is going up, one’s going down. Piston one combusts as the second does compression, then piston two combusts (a half-revolution after piston one did) while piston one exhausts.
Do diesels have exhaust headers?
Even though diesels have been around for more than 100 years, there are still some popular hot rodding parts that only the gas guys can get. Exhaust headers have been one of those parts. Until recently, if you wanted a free-flowing tubular-steel exhaust header, you had to have it custom made.
Do extractors work on diesel engines?
On a standard diesel, adding a bigger exhaust and extractors will offer a good (read noticable) power increase, but you do run the risk of sucking oil up through the piston rings.
What headers add the most HP?
Long Tube Headers
This is the ideal performance for a header, and it gets you the most horsepower increase. If at all possible, you should get a long tube exhaust header. The problem is that you might not be able to install a long tube header. Those long pipe runs require lots of space, so a long tube header is bulky.
What headers give the most horsepower?
Shorty headers deliver better low-to-mid-range torque. Medium and long-tube headers allow an engine to make more horsepower at high rpm.
Do headers require a tune?
And for aftermarket headers, the answer is yes, you should tune your car when installing a new exhaust header. Major performance mods like a header can significantly alter important variables like air/fuel ratio. Tune is required to ensure you get the most out of the header without future problems.
Do headers increase mpg?
Exhaust headers are lighter.
It is proven that exhaust headers which are tuned for economy, can improve the gas mileage by a small margin. And this is around 2-3 mpg improvement on the highway or city.
Do headers reduce torque?
Improving your exhaust headers and using wider valves can help you with ventilating the cylinder more completely, allowing more air and fuel to come in during the next cycle. This improves the performance and torque of the vehicle. Torque is all about air intake and fuel combustion inside the cylinders of the engine.
What is the advantage of a 270 degree crank?
The advantages of a 270-degree firing order are that basically, it’s somewhere in between 180 and 360. Not joking! It has less primary balance than a 180-degree engine (bad), but less of a rocking couple (good). It has more balance than a 360-degree engine (good), but has more rocking couple (bad).
Is there an inline 2 engine?
A straight-twin engine, also known as an inline-twin, vertical-twin, or parallel-twin, is a two-cylinder piston engine whose cylinders are arranged in a line along a common crankshaft.
Can you put headers on a diesel engine?
You can run headers on a diesel…..if it is naturally aspirated. The exhaust in our trucks goes to the turbo before it goes out the tail pipe.
What is a cold end exhaust?
The cold-end exhaust aftermarket includes the sale of components in the exhaust system such as underfloor convertor, resonator, intermediate pipes, muffler, heat shields, and exhaust tip among others.
Do extractors make a difference?
Although design in manifolds vary and some are better than most, the design of extractors simply allow for the exhaust gases to be more free flowing. Performance gains, better fuel economy, better exhaust note, are all benefits of extractors.