2015 Mustang Ecoboost K/SA?

[6130]

Originally Posted by Mark Yacavone

Mr. 6130,
I don't believe the convertible would be exempt from hp increases on the hard top.
Considered same platform..

Thanks, but "Mr. 6130" was my late father- you can just call me 6130.

[Mark Yacavone]

You have to carry 132 more pounds and only get 5 hun on the index.
Doesn't sound like a deal to me.
(Convertible might slow you down even more)

[6130]

Originally Posted by Mark Yacavone

You have to carry 132 more pounds and only get 5 hun on the index.
Doesn't sound like a deal to me.
(Convertible might slow you down even more)

Yeah, I saw that.

I was just amused at the goal of 12.20 for a national record.

[ALMACK]

Originally Posted by Mark Yacavone

Then tear down a factory stock 2015 car, put it back together, and then drive home.

Yep ^^

No way would I attempt to set a record in a vehicle that I have to drive to get me home.


Hats off to anyone that would attempt that stunt

[6130]

Originally Posted by ALMACK

Yep ^^

No way would I attempt to set a record in a vehicle that I have to drive to get me home.


Hats off to anyone that would attempt that stunt

That's one of the reasons I said that I would have no interest in setting any records.

But it would be interesting to see someone do it.

[6130]

I don't want to clutter the front page by starting another thread, but now that I understand the challenges of the 2015 Ecoboost Mustang Stocker, I would like to ask about another late-model Mustang combo- The 3.7 V-6 / 6R60 automatic SN197 2011-2014 Mustang.

Ford rates that engine at 305 horsepower, and NHRA has it factored at only 260 horsepower. It probably doesn't have the same potential to run under index as easily as the 2015 Ecoboost S550 Mustang, but being factored 45 horsepower below the OEM horsepower rating is certainly worth something in and of itself.

The classification guide lists it as a 13.08 pound (J/K/L) car with a fixed roof, and a 13.77 pound (K/L/M) car as a convertible. It would still need a roll bar in either configuration, and would absolutely need more work to run under, to include a ring & pinion, a converter, and long-tube headers. This car would also be more likely to require smaller/lighter drag-type brakes and 15" wheels. But these cars can be found for even less than a used 2015 Ecoboost. I would need a jack for this one, because I'd need to have some kind of removeable mufflers- a 6,500 rpm V-6 with a loose converter, deep gears, and open long-tube headers would not work for public roads between my house and the strip.

I'm asking about this combo, because it appears to have been in the books for a while, but if anyone were exploiting it, the horsepower factor would have been whacked already, so I'm hoping that it would run under with a stock engine, and I'm also hoping that chances of a 3.7 SN197 Cobra Jet are pretty slim.

What say ye?

[GUMP]

The V6 would most likely need a blueprint, cam, and a big stall to index.

[6130]

Originally Posted by GUMP

The V6 would most likely need a blueprint, cam, and a big stall to index.

They have run high 13s at a little over 100 mph stock, and there are youtube videos described as "all-motor", "N/A", and "bolt-on" street cars, running as quick as about 12.1x at 114 mph. Even the 12.1 car had street-ish 3.73 rear gears and appeared to have stock brakes. So I'm still hoping...

[ALMACK]

Originally Posted by GUMP

The V6 would most likely need a blueprint, cam, and a big stall to index.

Yep.

Those V-6 cars can run mid 13's with longtubes, off road exhaust, stock gears, and maybe a CAI and tune. But if you want to run 12's then things get serious.

Since it is a small naturally aspirated engine pushing a lot of weight it will not be an easy build to run index.

Might be factored too high

[6130]

Originally Posted by ALMACK

Yep.

Those V-6 cars can run mid 13's with longtubes, off road exhaust, stock gears, and maybe a CAI and tune. But if you want to run 12's then things get serious.

Since it is a small naturally aspirated engine pushing a lot of weight it will not be an easy build to run index

I think some of them run quicker than that.

And I strongly suspect that on race gas, with open headers, a loose converter, 4.56 rear end gears, and lightweight drag racing brakes, that the index should be much more attainable.