Full Answer
How much horsepower can a stock 4×4 handle?
The stock 4.6L engine has a comfort zone of around 425-450 flywheel horsepower. Anything over that, and the rotating assembly could let go and “poof” goes the engine. However the aftermarket provides a host of supporting parts that can easily handle over 1000hp.
What is the power limit of a 4 6 engine?
The power limit on the 4.6 engine can vary based on the production type and year of manufacture. On all 4.6 based engines though, the weak link is primarily the connecting rods. For 4.6 engines with 2 valve heads (2 valves per cylinder), the power limit is around 400 rwhp.
How much RWHp can a 4 valve engine hold?
The 4 valve engines that were installed in 1996-2001 Cobras and 2003-2004 Mach 1s can hold around 450 rwhp. The 2003-2004 Cobras are different in many ways though. They came not only with forged rods, but also pistons and crankshaft.
How much HP can the stock shortblock handle?
They have tested engines making tons of hp and the stock 4.6 block holds up, no problem. you've obviously got some money to spend, so I'd keep some of that around to pay for a new shortblock. the stock shortblock should handle 450rwhp, its just a question of how long.
How much horsepower can a Ford 4.6 4v handle?
4.6L Mustang Engine Power Limits For 4.6 engines with 2 valve heads (2 valves per cylinder), the power limit is around 400 rwhp. This is for both NPI and PI models (1996-1998 and 1999-2004). On 3 valve engines (2005-2010), the power limit is increased slightly to around 450 rwhp.
How much HP can a built 4.6 handle?
The stock 4.6L engine has a comfort zone of around 425-450 flywheel horsepower. Anything over that, and the rotating assembly could let go and “poof” goes the engine.
How much power does a 4.6 V-8 make?
Ford 4.6L Engine - SpecificationsMetricValueBore90 mmStroke90 mmCompression ratio9.0:1 (2 valve) / 9.4:1 (3 valve) / 8.5:1 (4 valve)Max power @ RPM (in a Ford vehicle)390 @ 6,000 rpm4 more rows
How much horsepower does a 4.6 make?
The Ford 4.6L V8 was produced from 1990 through 2014 and has been used in many different vehicles over the years. The horsepower figures from the engine range from 205 through 302 horsepower depending on the vehicle it was in.
How much HP can a stock Mustang GT handle?
In stock trim, it seems the realistic limit of the stock rotating assembly is around 600 horsepower to the wheels (depending on drive train loss, can equate to 750-800 horsepower at the crank).
What is a 4.6 pi engine?
In 1999, Ford revised their 4.6L Mustang V8 to produce an additional 35 HP for a grand total of 260 HP at the crank. This revised motor, installed in all regular Mustang GT's from 1999-2004 was dubbed the PI engine, where PI stands for performance improved or power improved.
What cars did the 4.6 4v come in?
Vehicles equipped with the 32-valve DOHC 4.6 L include the following: 1993–1998 Lincoln Mark VIII, 280 hp and 285 lb·ft. 1995–1997 Lincoln Continental, 260 hp and 265 lb·ft. 1996–1998 Ford Mustang SVT Cobra, 305 hp and 300 lb·ft....Ford Modular Motor DIfferences.YearCasting NumberDescription1993-2001F6LEDOHC1993-1998F2LEDOHC Lincoln Mark VIII1 more row
How can I get more power out of my 4.6 Mustang?
2:008:06Squeezing Coyote power out of a 4.6 Mustang (without boost) - YouTubeYouTubeStart of suggested clipEnd of suggested clipTwo we installed headers and x-pipe a larger throttle body new coils underdrive pulleys and have theMoreTwo we installed headers and x-pipe a larger throttle body new coils underdrive pulleys and have the car dyno tune. These mods enabled the car to make 327 wheel horsepower.
How many miles will a 4.6 Ford engine last?
It seems that they either seize before they get off of the transport truck (brand new) or run 200,000 miles with regular service. The 4.6L engines I work with are serviced religiously and run well over 150,000 mile in SEVERE service.
How much horsepower does a supercharger add to a 4.6 Mustang?
Supercharged 4.6L V8 = 500+ Horsepower In addition to the 70-75% boost in horsepower with the ProCharger upgrade the Pro Motorsports team also dressed up the engine bay with Drake Industries billet aluminum caps and accessories, and polished the intake boost tubes.
Is the 4.6 a good motor?
Is the Ford 4.6L V8 engine reliable? Yes, we believe this engine earns above average remarks for reliability. There is a reason Ford stuck with the 4.6 V8 in so many flagship cars like the Mustang GT, F-150, Police Interceptor, etc. The Ford 4.6 engine offers a great balance of performance and reliability.
Does the 4.6 have cam phaser problems?
Cam phaser knock on the 4.6/5.4L 3V trucks is a very common problem, one that usually results in eventually failure of the cam phaser due to excessive movement. This causes the pin in the phaser to fracture the housing of the phaser, and in extreme cases the entire assembly can fail and damage the engine.
What happens if you go past 6 PSI?
You go past 6 psi, you are looking at over heating rings, burning oil, over heating the valves and melting your valve stem seals down which means more burning oil and or chipping off a valve. To be safe, really safe, don't go past four and really ensure you have it carefully tuned before driving it.
Does boost matter on a motor?
Boost does not matter. You are going to run into two factors that are going to determine how long your motor lives:#N#1)Tune#N#2)Torque#N#If the car is tuned safe, it will be alright. However, if you exceed the torque limit of the rods, it won't matter how lightly you have it tuned. I've seen 2v GT's break the rods at 400rwhp, and I've seen them live at 520rwhp for many years.#N#My advice to anyone who puts a blower on their car is to plan on buying a shortblock. The day you install the blower, put away a fund for the motor. On these motor's, it's not an "if", but "when".#N#Also, if you can't afford to put a motor in the car should it break, you have no business putting a blower on it in the first place.
What engine block did Ford use for the 4.6?
All dual overhead cam 4.6 engines came with an aluminum block from Ford, with the exception of the ’03 to ’04 Cobra engines, because Ford engineers believed the cast iron Romeo block to be a stronger choice for the supercharged Mustang.
How many cubic inches is a 4.6 liter?
The bigger bore, combined with a stock stroke, increases the 4.6 liter to 305 cubic inches and 323 cubes when combined with a 3.750” stroker crank. Note that when switching to the much larger 94mm bore size, it is also necessary to use larger bore head gaskets that are available from Ford Racing and Cometic.
What type of block is used in a 2 valve motor?
Most two-valve Modulars were built with either a Windsor or Romeo cast iron block , with slight differences between the two blocks. Windsor engines were supplied in most trucks, with the ’99-’00 Mustang GT also utilizing that version of the cast block.
What type of crankshaft does a Cobra have?
Cobra engines were equipped from Ford with a stronger forged micro steel crankshaft with only the 8-bolt flywheel pattern.
What bolts are used for ARP 2000?
They can be supplied with ARP 8740 or ARP 2000 material cap screws, with a strength advantage going to the ARP 2000 bolts. The H-beam rods will usually support up to around 750 flywheel horsepower with the 8740 bolts, and over 1000 horsepower with the better ARP 2000 bolts.
How much power does a 4.6 engine have?
For 4.6 engines with 2 valve heads (2 valves per cylinder), the power limit is around 400 rwhp.
How much horsepower does a 4.6L have?
The stock 4.6L engine has a comfort zone of around 425-450 flywheel horsepower. Anything over that, and the rotating assembly could let go and “poof” goes the engine. However the aftermarket provides a host of supporting parts that can easily handle over 1000hp.
Why do aftermarket injectors have different nozzles?
Aftermarket injectors have a different nozzle to better atomize fuel (giving you more power and more miles per gallon to a degree). Perhaps even more important than that is how much fuel and pressure they can handle. The more air you force into your engine the more fuel you'll need to compensate.
What block is used for a 98 Mustang GT?
Any aluminum blocks after ’98 is the Windsor or WAP block. Both blocks work great, but the Teskid is always sought after since it was produced for Ford by Ferrari. The aluminum blocks use four main bolts and two side dowels. Teskid aluminum blocks are a great way to shed 75lbs from the front of your Mustang GT.
What type of pistons does a Mustang GT use?
Ford chose hypereutectic pistons for the Mustang GT. They work well up to 450 flywheel horsepower. If your goals exceed that, you’ll have to upgrade to a set of forged pistons. Quality forged pistons are generally made of 2618 aluminum alloy, and include 4130 chromoly wrist pins.
How does a camshaft lobe affect horsepower?
A camshaft's lobe can increase how long a valve is open for (duration) and how much the valve opens (lift). This allows your engine to breathe better and potentially rev higher to increase your horsepower numbers. This combination also changes how your engine sounds.
What are Ford connecting rods?
The stock connecting rods from Ford are a powdered metal unit. This new manufacturing method proved to be more cost effective. They are pretty tough, but are prone to cracking under harsh conditions. This is definitely a part to upgrade for a performance engine. There are two types of forged connecting rods available: H-beam and I-beam. Engine builders will debate which rod is better until the end of time. Basically gram for gram, the I-beam connecting rod is stronger than the H-beam. To compensate, the H-beam rods are generally a little heavier. When building an all out race engine, rotational weight is a big factor. With that being said, they are both huge improvements over the stock rods. The important thing for a high performance street/strip Mustang is choosing the right rod for your application. Unless you are building a 1500hp drag car, either will do the job. A good set of forged rods will easily handle 1000 hp or more depending on design.
Is a 5.0 crank a stock crank?
If it's actually hogged out to a 5.0, it isn't the stock crank.#N#General rule of thumb is 650rwhp/6500rpm with the stock crank. I've never personally known anyone to break one, however.#N#That big blower is definitely going to put some strain on that crank snout. I'd try to verify for sure what it was.
Can a cast steel crank handle 450 horsepower?
Yes they are cast steel but they can handle quite a bit of horsepower. Its the rods that let go around 450-500 at the rear wheels. The crank itself will be safe way beyond that. Horsepower isnt what kills crankshafts anyway, its rpms.
Can a 4.6 2V crank have stock rods?
As said above, it's not the crank so much as the stock rods that can be the problem. Stock rods in the 4.6 2V are good to about 6500 tops. If it's a stroker, it shouldn't have stock rods or crank though. However, the longer stroke to bore ratio adds its own complications to high revs.
