'18 GT 10-spd auto dyno numbers: 415/397

[Gabe]

LMR got their new 10-speed auto GT on the dyno yesterday, it put down 415 rwhp, 397 rwtq.

Factory ratings are 460/420, so it certainly seems under-rated ... no way the car only has a 10% driveline HP loss, 5% driveline TQ loss ...

 

[RED09GT]

Good, hopefully it makes up some ground on the 2016+ camaro. Time to put it on a diet.

 

[NickD87]

I hope my EcoBoost is also underrated (ordered an 18 as my daily and keeping my modified 05 as the toy

Sent from my Nexus 6P using Tapatalk

 

[Pentalab]

LMR got their new 10-speed auto GT on the dyno yesterday, it put down 415 rwhp, 397 rwtq.

Factory ratings are 460/420, so it certainly seems under-rated ... no way the car only has a 10% driveline HP loss, 5% driveline TQ loss ...

I'd call that 520 crank hp / 497 crank tq.
With LT's + 93 / 94 tune, it will be a bunch more..(perhaps another 30-70 crank hp).... in which case, for a DD, that would be ample for my purposes. IE: forget the blower for dd use.
I thought the 2018 used a 8R80 with a 8 speed auto ? How many gears does the 2018 manual have ? The manual version should dyno even better.....and a bunch more with LT's + 93/94 tune.

 

[tjm73]

Still 6 speed for manual. Never heard of an 8R80 transmission.

Applying the "standard" .85 drive line loss in reverse puts things at around 490/470 crank. Sick.

 

[eighty6gt]

optimistic dyno.

 

[redfirepearlgt]

Ford has a history of providing a conservative number when it comes to HP. I respect that very much. And their spec of 460/420 Flywheel is nothing I doubt....other than being conservative.

Show me some ET's. A dyno number is just a number. One session doesn't set a standard. I look forward to seeing what the 2018 will do in the real world at tracks around the country. That is where the truth will be told.

 

[Bingo]

Sweet. I like rowing through the gears on my own, especially on a sports car, but with a 10-speed that has such low driveline loss, the manual has basically become a novelty. I would buy the auto over the manual if I was in the market for a 2018. I can't believe I said that.

 

[tjm73]

Automatics have gotten so good and so efficient that they really have made the stick shift obsolete. I love the stick shift in my '93 GT, but I wouldn't buy a newer (post '11) Mustang with a manual transmission.

 

[Badd GT]

My 06 gt lost about 35hp when I dyno’ed it stock. Now with supercharger and all it makes 510 at the wheels. I think it still loses 35 through the driveline. I think that 10% or so through the driveline is suspicious lol. As horsepower goes up I don’t think parasitic loss does also

 

[RED09GT]

My 06 gt lost about 35hp when I dyno’ed it stock. Now with supercharger and all it makes 510 at the wheels. I think it still loses 35 through the driveline. I think that 10% or so through the driveline is suspicious lol. As horsepower goes up I don’t think parasitic loss does also

This is a debate that I have always had in my mind:

1. Does it consume XX horsepower to move the driveline at whatever speed, meaning a constant amount of power is consumed at whatever RPM

or

2. Does it take XX horsepower to accelerate the drum on the dyno at a given rate?

The dyno plays a role in this as well. A typical dynojet in my mind would have a % of drivetrain loss since you need to accelerate the drivetrain as well as the drum but a loaded dyno that can load the car at a constant speed would just lose whatever power was needed to hold that drivetrain at a steady speed.

There are definitely some actual engineers out there that can settle this for us or at least debate it on a higher level.
Or F$#k it and take it to the track and get some ET's and trap speeds, dynos are just tools anyways.

 

[Pentalab]

Still 6 speed for manual. Never heard of an 8R80 transmission.

Applying the "standard" .85 drive line loss in reverse puts things at around 490/470 crank. Sick.

The story I got was the 6R80 (6 speed auto) used in the 11-17 cars is being replaced with the 8R80 ( 8 speed auto) in the 2018 car.

I'd use .8 drive line loss for the auto...and .88 for the manual.

The 2015+ auto's came with paddle shifters... which is a hoot to use. Drove a buddy's..... and the kicker is... say if in .. 'manual paddle shifter mode' and in either 2/3/4/5/6th gear..and you come up to a stop sign...when you go to take off, it has enough smarts to start off in 1st gear. Then just up shift through the gears.

The paddle shifter worked slick....shifting up /down. Quick shifts, don't have to take ur right hand off the wheel. Or just stuff into... 'Drive' and drive 'normal'.

Right now, in my 2010, if manually shifted in say 3rd gear...and come to a red light, I'm still in 3rd gear. I can manually shift between 1-2-3 with one finger. Soon as I stuff it into.. Drive.... then it locks into place. Only in drive it has enough smarts to drop into 1st gear at a red light. At least with the TCI ratchet shifter, I had in for a few months, I could manually shift between 1-2-3-D.

I still contend, with that much hp / tq, for DD / HWY use, I wouldn't mess with a blower, maybe LT's + 93/94 tune at most. Heck, Brian was down to 11.49 ET with his NA 14 auto, glass roof, + 5k stall converter + drag slicks, stock suspension. He's on the edge of being booted off the strip.... 'come back with a roll cage'.

 

[RED09GT]

The story I got was the 6R80 (6 speed auto) used in the 11-17 cars is being replaced with the 8R80 ( 8 speed auto) in the 2018 car.

10R80 and it is a 10 speed in the mustang. The camaro has an 8 speed in the SS, ford doesn't have an 8 speed.

 

[Gabe]

Not sure what gear the dyno run was done in, but apparently there can be quite a difference in results depending on which one of those 10 gears they used.

They're saying they're taking it to the track next week, we'll see.

Also, Hellion already has a twin-turbo kit available for the '18+, and Whipple just announced a 3.0L kit for the '18+ 5.0 Mustang/F-150.
And Whipple supposedly already has an '18 Mustang that put down 755/580 to the tires through an auto.

https://www.lethalperformance.com/2018-mustang-gt-whipple-supercharger.html

 

[Pentalab]

10R80 and it is a 10 speed in the mustang. The camaro has an 8 speed in the SS, ford doesn't have an 8 speed.

You are correct. 10 speed auto. "Codenamed Ford 10R80, the up-and-coming slush box has six forward under drive ratios, one direct drive ratio, and three overdrive ratios."

It's also supposed to handle loads of TQ, like 650+ ft lbs.
It's a collaboration between Ford + GM.

 

[Pentalab]

"Mustang is seeing 580 RWTRQ, 755RWHP (10-speed) which comes to 725 ft/lb of torque, 940 horsepower on 93 octane" ( 755 /940 = .803 so I was almost dead on)

This is just nuts..with the new 3.0 L upside down whipple with its new 3/4 male-female rotor pack, huge IC...and IC plumbing comes with 1" coolant hoses. 150mm single intake.

It's a flamethrower in a box..with 4 wheels, just write out a big cheque. https://www.lethalperformance.com/2018-mustang-gt-whipple-supercharger.html

 

[Gabe]

So theoretically for about $50k you can have a damn-near-1,000-horsepower '18 Mustang GT with an automatic, something that your grandma can take to church.

Can't wait to see what the '19 GT500 will be like.

 

[tjm73]

755 to the wheels on pump gas in street trim with only a blower kit is insane.

 

[Pentalab]

755 to the wheels on pump gas in street trim with only a blower kit is insane.

If your rear tires start with the digit... "2".... IMO you will be in over your head on the street..and fast. What's needed out back..for street / hwy use would be a 11" wide rim and either a 305 or 315 tire. And at least a 285 on the front. And 15" front rotor's to slow it all down.

One way to handle the TQ on the street / hwy, would be to have enough smarts in there, so if the rears break traction, to up shift 1 or 2 gears.

 

[fourdegrees11]

I really wonder how much is left in the tank for an N/A 5.0l v8?

There's about four 2018 GTs available locally for sale right now. All are $41k+, and likely without any discount. As much as I would like a 2018 there's just no way I could justify trading in my paid off 12 and still having to take on a $25k+ loan.