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Good question. We won't know until it's out but I'd have to guess the 5.0 being 4v will have more potential. However, when the 5.0 comes out it'll be the new hotness and maybe 3v parts will become more affordable. Making it easier for the 3v guys to catch up to the 5.0 guys.

 

It's more or less as Boomer and Moosetang explained it. Noobs over there consistently whine and moan about the credibility of Fourcams posts without ever taking the time to do some research and find out how accurate the guy really is. By this point I think he's just tired of these guys and figures if they can't bother to take the time to figure out what the lay of the land really is then they aren't worth his time or trouble.

 

I agree with Indystang, you could be dead next week...Get one now and then sell it and get the all new GT in a couple of years..(If you are still around of course...)

 

I would guess the 5.0 has far more potential but I would like to know how big of a difference we are talking...

 

Big difference I'm guessing will be in the torque department. The larger displacement will help.

 

Bigger bores allows bigger valves and ports, add in some stroke which means more air = more power. But I don't think just the .4 liter increase with air flow improvement is enough on its own, they must have found some power somewhere, or just have it tuned perfectly.

For instance a 3V Bullet 4.6 would be making approximately 342 hp at 5.0 liters. More port only air flow to get to 400 is stretching it..............maybe some more cam timing (higher revs) and intake manifold improvments, add in another point in compression and I think your there.......on premium fuel.

 

Given the 4-valve heads I would actually be surprised if it was as difficult to get 400hp out of the upcoming DI 5.0L as it was to get 300 out of the 05 GT. The added stroke is an important factor but the biger issue is the unshrouding of the valves that the larger bore in the 5.0 makes a reality. Were not just talking about a simple improvement here but a genuine solution to a problem.....the bore on the 4.6L was just too small for optimum perfromance and couldn't take anytyhing like full advantage of any of the 4-valve heads. Throw in the improvements direct injection is going to bring to the table and 400hp isn't at all difficult to imagine.

 

Well if the DOHC heads are similar to the current DOHC heads, then figure thats 60 pounds extra right there. Lol the LSx guys will be tickeled pink with the fact that the 5.0 motor will solidly be heavier than the LSx dressed weight by at least a good 40 lbs. (current 3v is 20 pounds lighter dressed).

 

Indeed, going from from the dinky 3.55 bore to a 3.70 bore on the 4v heads is worth about 30-40 cfm (IIRC) all by itself. Figure to with the 4v heads and GDI you can add some good compression. A failing of the 3v head is the poor heat transfer characteristics of the plug (among other spark plug related woes) and the resulting ping you get from it limiting a practical increase in compression.

 

It won't be 3.7..it'll be lower.

Also...won't really matter if the LSx is lighter fully dressed, the 5.0 car will be lighter as a package (car) than the Camaro.

 

True. I think the lightest available Camaro will be the 3800lbs V6 model. The V6 Camaro will be packing 306hp so it won't be no slouch.

 

That's providing you don't consider the 3800lb+ V6 as an oversized barge, otherwise it's going to be a slouch even at 306 HP

 

Is 3900 lbs confirmed for the F5?

 

In a recent Bob Lutz interview he said the Camaro will be under 4000lbs.

 

I just read a long thread at svt performance and fourcam says the camaro will be powered by a 430 hp ls3. He says the weight will be 4000-4050. The 10 mustang will be 3550-3600. If we get 400 hp also stated by fourcam then we will have a fighing chance for a change without having to go to a special edition stang. Take it with a grain of salt and dont shoot the messenger but fourcam has been very very accurate in the past.

 

400 hp @ 3600 lbs will be more than a fighting chance against a 430hp @ 4000 lbs Camaro, that'd be like the golden days of the fox vs. 3rd gen.

 

The performance of the Camaro should be similar to an LS2 GTO. The LS3 has 30+ more hp, so figure it's .2 to .3 tenths quicker.

The 10/11 Mustang is going to need to be a mid 12s car to beat the Camaro IMHO.

 

This information sounds soooo sweet indeed ~ !!!

 

The bowties are all callin bs (surprise surprise)
http://www.camaroz28.com/forums/showthread.php?t=597146

but someone brought up a good point.

The 3v 5.0 that Saleen has (without DI)
is putting out 390hp@6000 and 390ftbs@4000ish

I have no doubt that the 4v can put out 400hp and 360lbs without DI.
I'd go so far as to say that look at the Saleen engine as blueprint, with the Ford production 302 being even better.