Not enough power?

[foghat]

It is true that if you search for dyno results on an 11-14 and compare to dyno results on the S550, they seem to be putting about the same hp range to the rear tires. Not something you'd expect considering the published differences in output. Actually had a post on this you can read if you search a few months back. However, considering the extra 200pds or so the S550 carries, it would make sense that it's slightly slower if the real, RWHP is about the same.

Given that the 13-14 made 420hp, you are going to have a hard time comparing dynos with a 15 and saying they are (or are not) putting the same amount down. 15bhp difference is probably like a 12ish whp difference.

We have seen stock '15s putting dynoing from 340-385whp (dynojet) range, so there you go, that 12whp diff. is easily eaten up in the dyno variability. Even the 11-12s could fall within this variability.

The only way to know for sure would be same day, same dyno for both cars.

OP: What is your DA? Mine is usually around a 5000 - shitty. That will kill your tire spinning ability pretty quickly.

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[15GTBEN]

Thanks for all the input guys.

I just drove my buddies 08 gt-500, and he drove my s550.

I felt the power / feel between the two cars is comparable. Which makes me feel a little better.

He said he thought my car was strong.

I did feel a noticeable difference between his 3:55 gears and my 3:73.

Good to hear guys are feeling a slight difference in power once they get over 500 miles.
I'm looking forward to it.

Your car is strong and the coyote has proven to run great at the track with plenty of potential.

My 2015 GT is my 3rd coyote GT and the way these cars deliver power have never really made my butt dyno happy(even tuned). That has always been my biggest pet peeve with the 11' and newer stangs. The pre 2010 GT500's felt like turds to me as well for how powerful they were. The 5.0 will probably need a blower to ''feel'' right..

As far as feeling stronger after some miles on the car; sorry but never noticed it on any of my 3 GT's :shrug:

BTW, the pedalmax definitely helped in the throttle response dept. I'd imagine that combined with a solid tune (like Lund) as well as removing the cats making a nice difference.

 

[Hawk296]

I have been fighting with this myself. I am still seriously considering a GT PP in about 6-8 months out. But after driving a few they really are not that fast. The 4 cam will make power higher in the power band than a push rod engine which makes it a bit more deceptive, but my 4 banger daily driver will run the 1/4 within a sec of the mustang GT. It's kinda hard to justify laying down the cash for something that is not much quicker than my 10 year old 4 cylinder.

But for me it's more than just numbers. I want the front engine, rear drive dynamics. I think the mustang looks excellent and I really want the broad useable power and lovely sound of a large displacement v8.

But I do agree, it's quick but it just does not feel THAT fast.

 

[Chameleon]

Bare with me, but I keep reading/hearing the word "nannies" What does that mean?

Just referring to the traction control and advanced track being both on.

 

[foghat]

I have been fighting with this myself. I am still seriously considering a GT PP in about 6-8 months out. But after driving a few they really are not that fast. The 4 cam will make power higher in the power band than a push rod engine which makes it a bit more deceptive, but my 4 banger daily driver will run the 1/4 within a sec of the mustang GT. It's kinda hard to justify laying down the cash for something that is not much quicker than my 10 year old 4 cylinder.

But for me it's more than just numbers. I want the front engine, rear drive dynamics. I think the mustang looks excellent and I really want the broad useable power and lovely sound of a large displacement v8.

But I do agree, it's quick but it just does not feel THAT fast.

A second in the 1/4 mile is very significant. What do you currently drive?

 

[Highwayman]

Agreed. Needs a SC.

 

[Hawk296]

A second in the 1/4 mile is very significant. What do you currently drive?

I agree it's huge in a racing environment. Real world on the street where lets be honest, most people won't get those advertised numbers and It would be a car length or two which is still significant but for $30-40k I just want a bit more.

You probably won't believe this but My daily is a lightly modded 05 Subaru Baja turbo (yes someone actually bought one of those things!) Runs high 13s all day.

I would be keeping it as the mustang would be a fun car/track toy. Realistically a Ford Flex with a tune can run mid to high 13s, that's a sloppy launch in the mustang. Trust me, I'm not knocking the mustang at all. Like I said its at the top of my list and I really want one when the time comes, it just doesn't feel that fast. And the numbers don't lie, it's a quick car. It just doesn't feel like it's as quick as it is and doesn't feel a ton quicker than my Japanese el camino like I hoped it would.

 

[Wblv17]

Blower time, that will wake it up real quick.

 

[WeinerDog]

I agree it's huge in a racing environment. Real world on the street where lets be honest, most people won't get those advertised numbers and It would be a car length or two which is still significant but for $30-40k I just want a bit more.

You probably won't believe this but My daily is a lightly modded 05 Subaru Baja turbo (yes someone actually bought one of those things!) Runs high 13s all day.

I would be keeping it as the mustang would be a fun car/track toy. Realistically a Ford Flex with a tune can run mid to high 13s, that's a sloppy launch in the mustang. Trust me, I'm not knocking the mustang at all. Like I said its at the top of my list and I really want one when the time comes, it just doesn't feel that fast. And the numbers don't lie, it's a quick car. It just doesn't feel like it's as quick as it is and doesn't feel a ton quicker than my Japanese el camino like I hoped it would.

Really? If that's the case, I would look elsewhere. Where would that be?

 

[Hawk296]

That's the thing, I'm not saying it's not fast enough, or not powerful enough. It just doesn't feel like it has 150hp more than what I'm currently driving at pretty much the same weight. Where would I look elsewhere? Well a used c6 grand sport can be had for new gt premium prices, but I don't want one of those, I really like the mustang more for many reasons.

And then you get into the fact that I'm talking about a stock mustang with TONs more potential when you start modding it. I'd love to get ride in one that's been supercharged as I think any concern I have would be gone

 

[foghat]

I agree it's huge in a racing environment. Real world on the street where lets be honest, most people won't get those advertised numbers and It would be a car length or two which is still significant but for $30-40k I just want a bit more.

You probably won't believe this but My daily is a lightly modded 05 Subaru Baja turbo (yes someone actually bought one of those things!) Runs high 13s all day.

I would be keeping it as the mustang would be a fun car/track toy. Realistically a Ford Flex with a tune can run mid to high 13s, that's a sloppy launch in the mustang. Trust me, I'm not knocking the mustang at all. Like I said its at the top of my list and I really want one when the time comes, it just doesn't feel that fast. And the numbers don't lie, it's a quick car. It just doesn't feel like it's as quick as it is and doesn't feel a ton quicker than my Japanese el camino like I hoped it would.

Thing is, I suspect in this comparison it is bigger difference in a non-race environment. I bet a big part of the time you are getting in your baja is due to atomic clutch drops when in the 1/4? What is your trap speed? That will be more telling. I'd guess it is no anywhere near the mustang's 112.

And a second in the 1/4 mile is much more than a car or two.

On the street when you are rolling, the mustang should be significantly faster. I mean, maybe it doesn't feel it (it is definitely a 'refined' power), but that doesn't mean it isn't so.

 

[Hawk296]

Thing is, I suspect in this comparison it is bigger difference in a non-race environment. I bet a big part of the time you are getting in your baja is due to atomic clutch drops when in the 1/4? What is your trap speed? That will be more telling. I'd guess it is no anywhere near the mustang's 112.

And a second in the 1/4 mile is much more than a car or two.

On the street when you are rolling, the mustang should be significantly faster. I mean, maybe it doesn't feel it (it is definitely a 'refined' power), but that doesn't mean it isn't so.

You are exactly right. after 100 mph it's all over in my car, but on the street, not racing, how often is that? My Trap speed is no where close @95mph. And no atomic clutch drops, about 4k with some clutch slip to preserve the expensive bits. It does have a 4.44 final drive also which helps the off the line acceleration.

I really didn't mean to get this off track. In a thread questioning if there was enough horsepower I was really just stating that the mustang does not feel as quick as it actually is, and that is one of the few things I'm apprehensive about personally before spending my pennies on a car strictly for fun. I simply wished the 1/3 more HP Would be more appearant than it is based on seat of the pants feel.

 

[Sasuketr]

Just want to start by saying, I have not dyno'd my Mustang yet. I intend to as soon as I can.

When that happens, I of course will get a better idea of how much power mine is putting down.

As of now I'm going off my butt dyno, and honestly I was expecting more. I have 500 miles on it so far, and it really isn't as fast / powerful as I thought / hoped it would be.

Example: I tried launch control yesterday for the first time. I launched at 3k in track mode / traction control off, and it barely broke loose. A couple chirps from limited wheel hop / and almost no chirp into 2nd gear.

I'm not trying to burn my tires up (tires are expensive). And I know traction=good times at the track / more money in your pocket. I just thought I would have to take it easy in order to preserve my rubber. But i'm finding it is actually the opposite. I'm having to try really hard to feel wheel spin / break traction.

I have heard / read many people saying they are having trouble preserving their tires or maintaining traction at the track with the stock tires.

Kinda starting to wonder if there is something wrong with my car....

I'm not the best driver out there, but I'm no amateur.

Any thoughts or guidance is much appreciated.

s550/Gt/PP/PP 400a/all stock.

What grade fuel are you feeding that girl? Try to keep it 93 octane and typically these cars wake up after couple of thousand miles. I ve seen dyno results from 350 to 400 whp on a stock car.

 

[WeinerDog]

That's the thing, I'm not saying it's not fast enough, or not powerful enough. It just doesn't feel like it has 150hp more than what I'm currently driving at pretty much the same weight. Where would I look elsewhere? Well a used c6 grand sport can be had for new gt premium prices, but I don't want one of those, I really like the mustang more for many reasons.

And then you get into the fact that I'm talking about a stock mustang with TONs more potential when you start modding it. I'd love to get ride in one that's been supercharged as I think any concern I have would be gone

My advice is if you are already questioning the way the car feels, it's not for you. Unless you want to spend the $$$ on FI. My 2010 GT apparently puts out similar power to your car and to me the new GT is in a different world. But, I know that those turbos are fun with the low down torque. The 5.0 has power everywhere but in stock form it really FEELS fast at the upper end.

 

[WeinerDog]

You are exactly right. after 100 mph it's all over in my car, but on the street, not racing, how often is that? My Trap speed is no where close @95mph. And no atomic clutch drops, about 4k with some clutch slip to preserve the expensive bits. It does have a 4.44 final drive also which helps the off the line acceleration.

I really didn't mean to get this off track. In a thread questioning if there was enough horsepower I was really just stating that the mustang does not feel as quick as it actually is, and that is one of the few things I'm apprehensive about personally before spending my pennies on a car strictly for fun. I simply wished the 1/3 more HP Would be more appearant than it is based on seat of the pants feel.

I have your answer: Buy a 2011 5.0. It doesn't have the refinement/isolation the new ones do. Put on some loud exhaust and you're there!

To me, this discussion goes back to straight line drag racing which I really don't care about. The way the GT/PP performs overall on twisty roads (which I am blessed to have in abundance) is what matters most to me. But, still can't imagine thinking the 5.0 doesn't feel quick (for a car, I'm an old sportbike guy).

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