Write up on the new 2011 5.0 engine

[Black95GTS]

Deep Dive: Ford's all-new 5.0 V8 — Autoblog

Pretty good read. I love the idea of the new engine, although it doesn't sound too after-market friendly. Hyper-crap pistons and a stock compression ratio of 11:1.

Adam

 

[revhead347]

Hypereutectic pistons get an undeserved bad rap. They are actually better on daily driven cars especially ones that Ford has to put a warranty on.

Kurt

 

[Pokageek]

Hypereutectic pistons get an undeserved bad rap. They are actually better on daily driven cars especially ones that Ford has to put a warranty on.

Kurt

Ok. Why?

 

[Black95GTS]

All I know is that when I saw a 400+ HP NA engine, my first thought was "Blower! 600 Horse with a bolt on!" then I read it was 11:1. Then my next thought was "Nitrous!" then I read it had hyper pistons.

It ought to be a 12 second ride. I'm just hoping it doesn't weigh 4000 pounds.

Adam

 

[Venom351R]

It ought to be a 12 second ride. I'm just hoping it doesn't weigh 4000 pounds.

Adam

It probably will. Seems like all the auto makers are upping the HP along w/ the weight so you dont really gain any ground at all. IE the 400+ HP charger that runs 13's

 

[rj95svt]

The engine supposedly only gained 10-20lbs over the 3v which is all in the heads and tivct. The only real weight gain should be that and the weight gained from the 6 speed. I don't think it will be very much.

 

[ProKiller]

i want one really really bad now after reading that.

 

[Black95GTS]

http://blogs.insideline.com/straightline/2011_mustang_ill_ford_fe_9998_3.jpg

This says 3603 pounds curb weight... throw in 50-60 pounds of fluids and you're looking at 3650ish. Not toooo bad considering the competition, but it could easily be 300 pounds lighter IMO. Don't know what wheel/tire package or stereo package this weight reflects.

Adam

 

[revhead347]

Ok. Why?

Hypereutectic pistons are actually quite strong, but very brittle. They don't expand and contract very much, which makes them ideal for a car with tight tollerances, like this new engine. You could put forged pistons in the car yourself, but you won't be able to get those 10,000 mile oil change intervals, and the engine will wear out faster. It would be worth it if you are really pushing the engine, but not on a stock engine. Hyper pistons are actually lighter than forged pistons too, which give the car a slight power advantage, and better fuel economy. It's a marginal difference, but when you compound that with lower costs as well, it just makes sense to use them.

I would say you could put a 150 shot on that engine with no problem, even with those pistons. I don't see this car getting any heavier than it already is. Remember, the new Camaro has a 415hp engine and is only a tenth faster in the 1/4 as the current 315hp Mustang. So this car ought to be a rocket ship with this engine.

Kurt

 

[Black95GTS]

I would say you could put a 150 shot on that engine with no problem, even with those pistons. I don't see this car getting any heavier than it already is. Remember, the new Camaro has a 415hp engine and is only a tenth faster in the 1/4 as the current 315hp Mustang. So this car F'ING BETTER BE a rocket ship with this engine.

Kurt

Fixed it for you.

Adam

 

[Pokageek]

Hypereutectic pistons are actually quite strong, but very brittle. They don't expand and contract very much, which makes them ideal for a car with tight tollerances, like this new engine. You could put forged pistons in the car yourself, but you won't be able to get those 10,000 mile oil change intervals, and the engine will wear out faster. It would be worth it if you are really pushing the engine, but not on a stock engine. Hyper pistons are actually lighter than forged pistons too, which give the car a slight power advantage, and better fuel economy. It's a marginal difference, but when you compound that with lower costs as well, it just makes sense to use them.

...

Kurt

Thanks for the education. Good stuff. ..

p.s. In my "dealings" with nitrous which was small and highly controlled, I found a 150 shot to really equal like..110 or so..

 

[revhead347]

Yeah, should pick up something like that at the rear wheels.

Kurt

 

[blksn955.o]

It depends on what size motor is being used with n2o. Most n2o hp levels are based on a engine volume of a 350/351. More volume....more hp as more n2o to fill that volume. Less volume....less hp will be seen. Also add that many n2o companies rate/get their hp levels at the crank and most real world people see numbers at the wheels/times at the track you will have a loss from the drivetrain.

Hyper pistons are not as forgiving as forged but not garbage either. Just because its forged does not mean its indestructible either.

 

[revhead347]

There is one builder named Keith Black who swears by hypereutectic pistons. All of his performance pistons are hypereutectic.

A 150 shot of N2O is whatever jet size that it takes to make 150hp at the crank. If one companies 150 shot makes more power than another's, it's because they are using a bigger jet, and more nitrous. The science is that simple.

Kurt

 

[Dino Dino Bambino]

If the 3603lb curb weight is correct (31lb more than the 2010 GT), the 412hp 2011 GT should hit the 1/4 mile in about 12.7-12.8, which is a couple of tenths faster than the Camaro SS.

 

[Pokageek]

I have heard of folks drilling out the nitrous nozzles too..hhehe .. an old redneck trick if they want more I guess.

 

[blksn955.o]

Drilling out the nozzle is a good idea if your running larger than a 150 shot in most cases. After talking with a N.O.S. R&D guy, the nozzles in most cases have a hole that is roughly the size of a 150 shot and many companies have std. nozzles like this. This is a large reason why you see people who just do not run that much better with a 175+ jet in place of a 150 jet. There are nozzles out there with larger dia. holes in the nozzles, they tend to be higher price non-std nozzles. These and drilling nozzles is part of how many n2o single nozzle class cars can get 300+ hp out of a single nozzle.

 

[revhead347]

I have heard of folks drilling out the nitrous nozzles too..hhehe .. an old redneck trick if they want more I guess.

There are nozzles available that are so big, it's just not necessary. People used to do that back in the day when bigger nitrous nozzles hadn't been invented yet. I had a few friends that did it.

Kurt