2015+ GT350 Mustang official power specs: 526 HP / 429 LB-FT!

[D K]

Yes but there is more to it than that....

You miss at least .2 seconds per shift. AT LEAST!

So if you shift 10 times per lap, its 2 seconds!
Imagine how much EXTRA power it takes to move a 3,700 lb car 2 seconds faster?....

Since Ford is planning on racing this car in Europe (LeMans), count the shifts there and youre talking in excess of 5 seconds per lap, just from shifting.

In shifter karts we often geared to top out at 3/4 or 7/8 of the longest straightaway.

It doesnt make sense, but the gearing will get the pass done and the other guy doesnt have time or balls to make the pass back in the braking zone.

Won many races just from that.

D

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[Alkhater]

lol, well edited.

 

[Grimace427]

Yes, basically a pure OD gear, but I dont see much use for making 6th closer when 5th will get you to 180mph...unless you ungovern the car and are doing texas mile type events.

If I were doing Texas Mile stuff I would want to cross the line in my 1:1 ratio, which in this case(and the regular GT) is 5th gear. Trying to utilize 6th gear for anything other than cruising down the highway only increases internal friction and other losses within the transmission.

That's right. Why would I want a car that's slower to 30 mph than a PP Coyote?

Since when was the GT350 slower to 30mph than the GT? All you have are gear ratios. Running 4.56 rear gears in the GT350 would more than certainly make it even slower to 30mph or even 60mph since more of your time will be spent spinning your tires with the rest being wasted between shifts.

 

[Lucky7s]

Hey Hack,

Think about this, the rotational mass of the engine, flywheel, wheels is all much less than that of a standard 5.0 PP. So the drivetrain losses are going to be even less than that of a standard 5.0 PP. Which will equate to more Torque put to the ground! The car is going to accelerate that much faster due to less power being wasted spinning up the extra drivetrain mass that the 5.0 PP has.

How much faster... maybe we will get a christmas present early and someone () will be able to actual give us real data one day soon!

 

[Grimace427]

Hey Hack,

Think about this, the rotational mass of the engine, flywheel, wheels is all much less than that of a standard 5.0 PP. So the drivetrain losses are going to be even less than that of a standard 5.0 PP. Which will equate to more Torque put to the ground! The car is going to accelerate that much faster due to less power being wasted spinning up the extra drivetrain mass that the 5.0 PP has.

How much faster... maybe we will get a christmas present early and someone () will be able to actual give us real data one day soon!

The PP doesn't have any more rotating mass than a regular GT, FYI. Also while the FPC has lighter internal components, they are somewhat offset by the heavier dual-mass flywheel and crank damper.

 

[Katastrophe]

Hands up on this forum of those who have driven a Car that has a 8000 RPM car or Higher? Trust me, the gearing is going to be such that well hell... If 1st gear runs out at 55 MPH, then you will be below 3000 RPM at below 20 MPH. If you are not use to high rpm motors, this is going to be a totally different driving experience for you. You will want to Live in that 3500 to 8250 power band, and the only time you will be below 3000 RPM is 1st gear unless you short shift it.

If you compare the FPC engine vs. the Standard Coyote 5.0 the only place the regular 5.0 Liter engine has on it is between 2500 and 3100 RPM's (and its only like 25-30 Ft/lbs), everywhere else the FPC engine makes more Torque and over a wider power band.

I used to own a 2010 Civic SI...the K20 was an amazing engine. It didn't have much power or torque. It made 197Hp and 139Tq stock. But revved to 8,300. Mine was bumped up slightly to 8,500 (I had a few basic modifications).

The main point I'm trying to make is that the gearing was VERY aggressive. Very short gears, lot's of shifting...but it made the most out of the engine and the power it had.

1st: Just under 40Mph
2nd: Just under 61Mph
3rd: Just over 85Mph
4th: Just over 113Mph
5th: Just under 141Mph
6th: Useless except for highway MPG.

The GT350 by comparison doesn't have as short of gear ratios...but the engine makes up for that by being much more powerful.

1st: 53.5Mph
2nd: 78.0Mph
3rd: 108.1Mph
4th: 140.3Mph
5th: 174.0Mph
6th: Highway MPG.

This is using the highest Tq capacity ratios listed for the 3160 and a 3.73 final drive.

Depending on the track, you could get some real benefit out of using 4.10's.

 

[Trackaholic]

Ratios looked to be set up pretty well for track use assuming gears 2, 3, and 4 are used.

Up to 4th might be a little tall, as I doubt 140+ MPH is likely with ~525 HP, but they seem pretty reasonable.

5th looks to be setup for top speed. I heard in one place that car is limited to 180, and in another that there are no electronic limits. I take that to mean that the car will reach top speed (~180) in 5th gear, and will be a bit slower in 6th.

I can definitely understand those who might want a shorter rear end though.

-T

 

[krt22]

Why not just go with a 4.76 rear like the civic has, itll scream

 

[Katastrophe]

^ LOL. That would be a bit too manic, I think.

Aside from getting out of the hole, the gears are spaced together quite nicely. The RPM spread doesn't jump around too much and there is only a difference of about 25-35Mph between each gear.

 

[Katastrophe]

Thinking out loud...do we know for sure the GT350 isn't using a custom gear-set within the 3160?

The only reason I ask is because realistically, they could gear it SUPER aggressive...where 6th gear is utilized for the top speed with no actual overdrive gear. Exactly like they do in the Viper. Except with better ratios, because the viper has some really stupid ones...

Apologies for going off topic...

 

[grayforge]

Why not just go with a 4.76 rear like the civic has, itll scream

Rear? :-)

 

[krt22]

You know what I meanaddle:

 

[-=Hot|Ice=-]

6th gear is essentially overdrive?

 

[krt22]

Thinking out loud...do we know for sure the GT350 isn't using a custom gear-set within the 3160?

)

I did not see this data posted anywhere. :shrug:

 

[grayforge]

You know what I meanaddle:

Yep. Just like we 'tape' TV shows these days.

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