It's Official: 2011 Ford Mustang GT has 5.0-liter V8
I agree if the 5.0 is putting out more HP than the LS3 Camaro and we know the mileage is better then I would think Ford would have stated that since it would further trump the Camaro. Ford certainly had no problem with doing that with their 3.7L V6.
Just a lot of fun speculation at this time. We’ll know a lot more on the 29th.
The rollers aren't seeing a 1:1 ratio anyway, due to the rear end gears. I could have the same overall gearing with a 1.3 tranny gear (typical Tremec 3rd) and a 3.3 rear gear as I would with a 1:1 tranny gear and a 4.3 rear gear.
But I don't think Ford SAE Certifies their engines like GM have since 2006.
I agree if the 5.0 is putting out more HP than the LS3 Camaro and we know the mileage is better then I would think Ford would have stated that since it would further trump the Camaro. Ford certainly had no problem with doing that with their 3.7L V6.
Just a lot of fun speculation at this time. We’ll know a lot more on the 29th.
I agree if the 5.0 is putting out more HP than the LS3 Camaro and we know the mileage is better then I would think Ford would have stated that since it would further trump the Camaro. Ford certainly had no problem with doing that with their 3.7L V6.
Just a lot of fun speculation at this time. We’ll know a lot more on the 29th.
Since no one has said it yet, I will call BS.
395rwhp is absolutely retarded. No way the engine is that underrated. It just wouldn't make sense.
Why would Ford go out of their way to rate the V6 at 305hp (one more than the Camaro V6) and then rate the GT at 412hp if it is CLEARLY making WAY more power than that?
Doesn't make any sense, there is nothing magical about 412hp and 427hp or 429hp or something like that likely would have sold more cars by trumping the Camaro SS. Or I guess 445hp or 446hp or something along those lines if you believe that dyno above
I'm not buying it. Nice try Ford. I'm sure that early Ford GT wasn't a ringer either, you know the one where no one could ever duplicate the times and future GT tests ran neck and neck with a Z06.
Ford and Nissan are starting to build quite the reputation. Only time will tell I guess.
If by some act of shortbusness by someone at Ford those numbers are true, that car will be a damn rocket. You have all seen how a rocket sits there and smokes like crazy while it slowly takes off right? haha, 255 tires and 3.73 gears FTL. (I would buy one though, wheels/tires are easy to change)
395rwhp is absolutely retarded. No way the engine is that underrated. It just wouldn't make sense.
Why would Ford go out of their way to rate the V6 at 305hp (one more than the Camaro V6) and then rate the GT at 412hp if it is CLEARLY making WAY more power than that?
Doesn't make any sense, there is nothing magical about 412hp and 427hp or 429hp or something like that likely would have sold more cars by trumping the Camaro SS. Or I guess 445hp or 446hp or something along those lines if you believe that dyno above

I'm not buying it. Nice try Ford. I'm sure that early Ford GT wasn't a ringer either, you know the one where no one could ever duplicate the times and future GT tests ran neck and neck with a Z06.
Ford and Nissan are starting to build quite the reputation. Only time will tell I guess.
If by some act of shortbusness by someone at Ford those numbers are true, that car will be a damn rocket. You have all seen how a rocket sits there and smokes like crazy while it slowly takes off right? haha, 255 tires and 3.73 gears FTL. (I would buy one though, wheels/tires are easy to change)
Last edited by ZZtop; Mar 25, 2010 at 03:52 PM.
I seriously doubt Ford sent a "ringer". Possible, but seems very unlikely. I also have my doubts about the numbers, but would be more inclined to think it was other factors (dyno, environment, etc).
Time will tell.
Time will tell.
It just doesn't make sense. One thing is for sure, the next few months should be very interesting. I'm hoping the 2011 GT500 runs frickin mid 11's so the prices keep falling on the 07-10' as people turn them over for the latest and greatest.
Yes, they were SAE corrected numbers (as they should be). I wasn't referring to just the weather when I said environment. I was typing that on my Droid, so I tried more of a catch all. Factors could include dyno calibration, barometer/hygrometer/thermometer calibrations, operator, who knows what.
Or it could be accurate and the car is a ringer. Or it could be accurate and the car is not a ringer. Who knows.
Or it could be accurate and the car is a ringer. Or it could be accurate and the car is not a ringer. Who knows.
Well this is another example why you shouldn't dyno race.
On a Dynojet, if they would have dynoed in 5th instead of 4th the numbers should have been a few percent higher than what they got as previously stated.
I do not know what sort of error or uncertainty the manufacturers claim are in their dynos. Also unfortunately driveline losses are usually overestimated. At any rate, unless Ford did not certify the power rating of 412HP and the car is underrated, then the dyno numbers are inaccurate. I doubt they sent a ringer car.
On a Dynojet, if they would have dynoed in 5th instead of 4th the numbers should have been a few percent higher than what they got as previously stated.
I do not know what sort of error or uncertainty the manufacturers claim are in their dynos. Also unfortunately driveline losses are usually overestimated. At any rate, unless Ford did not certify the power rating of 412HP and the car is underrated, then the dyno numbers are inaccurate. I doubt they sent a ringer car.
Can't remember exactly but 1.43 comes to mind(?).
Anyway, results can be skewed by 30rwhp simply by using a different wheel tire combo (bigger wheel/tires -> lower dyno numbers) as I am led to believe. Therefore, a Camaro's 20" wheel/tire combo will give lower numbers than a Mustang riding on 18" wheel/tire.
I don't want to debate this with anyone. All I'm saying is that dyno numbers are one thing, the proof will be on the tarmac. We just need to be a bit more patient to find out.
The only reason why I'm participating in this discussion is because the Mustang 5.0L engine will find its way in the Falcon engine bay around June, albeit with a blower hooked up.
Anyway, results can be skewed by 30rwhp simply by using a different wheel tire combo (bigger wheel/tires -> lower dyno numbers) as I am led to believe. Therefore, a Camaro's 20" wheel/tire combo will give lower numbers than a Mustang riding on 18" wheel/tire.
I don't want to debate this with anyone. All I'm saying is that dyno numbers are one thing, the proof will be on the tarmac. We just need to be a bit more patient to find out.
The only reason why I'm participating in this discussion is because the Mustang 5.0L engine will find its way in the Falcon engine bay around June, albeit with a blower hooked up.
I'm wondering if the Mustang will need an extra gear change (in relation to Camaro) before the quarter mile line? Don't know, just curious. It probably will if the final drive used is lower than 3:31... I'm assuming.
Assuming a 27.5" tire (the 18's are ~27.25, 19's ~27.7), a stock 2011 GT will be able to run ~102 in 3rd gear and ~130 mph in 4th gear.
As a drag racer, I'm going to want to put the motor right at fuel cutoff in 4th gear. On a 26" DR or slick, a 3.55 gear would give me 116 mph in 4th @ 7000 rpm. However, with a 6500 rpm peak HP, I'm going to want to shift well above that 7000 rpm redline, and go through the traps even higher than that. This should be easily accomplished with a ECM flash, and I'd likely bump the fuel shutoff to 7500. With that much rpm, I'm probably going with a 3.90 gear, giving me ~114 mph @ 7500 rpm. With traction, and a tranny that can be shifted hard, that will take me well into the 11's.
Having my cake and eating it too, changing back to my 27.25" street tires, those same 3.90s produce a cruising rpm of 2200 rpm @ 70 mph.
Now if I'm going to use 5th in the 1/4 mile (its 1:1, and if it is on the mainshaft, could be powershifted), then the gearing will get....well....interesting. LOL.
Bench racing at its finest....
As a drag racer, I'm going to want to put the motor right at fuel cutoff in 4th gear. On a 26" DR or slick, a 3.55 gear would give me 116 mph in 4th @ 7000 rpm. However, with a 6500 rpm peak HP, I'm going to want to shift well above that 7000 rpm redline, and go through the traps even higher than that. This should be easily accomplished with a ECM flash, and I'd likely bump the fuel shutoff to 7500. With that much rpm, I'm probably going with a 3.90 gear, giving me ~114 mph @ 7500 rpm. With traction, and a tranny that can be shifted hard, that will take me well into the 11's.
Having my cake and eating it too, changing back to my 27.25" street tires, those same 3.90s produce a cruising rpm of 2200 rpm @ 70 mph.
Now if I'm going to use 5th in the 1/4 mile (its 1:1, and if it is on the mainshaft, could be powershifted), then the gearing will get....well....interesting. LOL.
Bench racing at its finest....
Yes, they were SAE corrected numbers (as they should be). I wasn't referring to just the weather when I said environment. I was typing that on my Droid, so I tried more of a catch all. Factors could include dyno calibration, barometer/hygrometer/thermometer calibrations, operator, who knows what.
Or it could be accurate and the car is a ringer. Or it could be accurate and the car is not a ringer. Who knows.
Or it could be accurate and the car is a ringer. Or it could be accurate and the car is not a ringer. Who knows.
I haven't a clue about ringers or under rating engine power.
It isn't that such a power level is not possible from a 5 liter motor. It is.
I don't see a positive for lowballing. Not on a vehicle that's important to move in large numbers. Power rating, 0-60, 1/4 mile tests numbers, MPG ratings help folks pull the trigger on a vehicle purchase. 395 rwhp from 412 fwhp motor is unusal.
It suggests some amazing low friction breakthroughs in the drivetrain.
The car business is not about being coy and blowing you own horn when you have a hot ticket for sale. Particularly now.
Chevy lowballed an engine like the L88 because they didn't want to sell that many. I don't see Ford looking to hold down demand on a vehicle that makes a lot of difference to the profit and floor traffic generation.
Chassis dynos are tuning tools, fodder for bench racing, and not very useful for predicting how quick a car will be.
395 is an impressive number for a streetable 302 that has a warranty of any long term.
I withold belief or disbelief based on the early report.

The cars will be on the streets and tracks and other dynos soon enough.
Last edited by 1fastdog; Mar 25, 2010 at 08:55 PM.
99 Cobra, RX8, et al.
To be frank, who gives a damn how much HP a V6 is really putting down. it could be 285, 295, or 315hp. The folks generally buying the base cars are generally only interested in sporty looks and little else. A nice suspension and great for the times HP is icing on the sporty cake. The GT and to a greater extent the GT500 needs to put down at least what the factory has rated the engines for.
I could see where Ford would be willing to underate the 5.0, if the worst example off the assembly line makes 412hp great, if the best engine off the assembly line makes 440hp even better, so long as the 5.0 makes between 412-440hp everbody is happy and Ford doesn't have to eat any crow.
Anyways I'm skeptical myself, I'm sure I said something here to the effect that I can't see a 5.0 coming in the Mustang making more than 380 or 390 HP myself. I really was pleasantly surprised the engine managed to bang out 412hp.
I could see where Ford would be willing to underate the 5.0, if the worst example off the assembly line makes 412hp great, if the best engine off the assembly line makes 440hp even better, so long as the 5.0 makes between 412-440hp everbody is happy and Ford doesn't have to eat any crow.
Anyways I'm skeptical myself, I'm sure I said something here to the effect that I can't see a 5.0 coming in the Mustang making more than 380 or 390 HP myself. I really was pleasantly surprised the engine managed to bang out 412hp.


