2013 Boss 302 vs 2019 GT Performance Package Level 1

[Norm Peterson]

I really can say asking for a friend, my buddy wants to know how his Boss would do against my car on a road course.
Assuming equal drivers, equal tires, and even considering automatic or manual.
He just recently got the red key programmed.
I have driven his car and it's impressive. I say he can take me on a road course, but what do you guys/girls say?

Over a 20 minute session you may take an early lead (driver confidence is going to matter), but if you're running the base brakes and not yet taken effective measures against differential fluid overheating I'm pretty sure he'll pass you before the session ends.

I am assuming track-capable pads and brake fluid for both cars here, and no suspension modification on either.


Norm

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[19gtaz]

Over a 20 minute session you may take an early lead (driver confidence is going to matter), but if you're running the base brakes and not yet taken effective measures against differential fluid overheating I'm pretty sure he'll pass you before the session ends.

I am assuming track-capable pads and brake fluid for both cars here, and no suspension modification on either.


Norm

I'm not sure what you mean by base brakes, I have 6 piston Brembo calipers that are larger than his boss. I think my rotors are larger also.

I've been curious about differential overheating since reading about it on this forum. I don't think he has a rear cooler but he may have. Does the independent 8.8 heat up more than the standard axle? We both have the Torsen differentials. In the old days you never heard about this overheating unless it was pro racing. What am I missing? Just curious and want to learn, not trying to be a smart ass.

 

[noac]

I have owned both. A PP1 car will take a Boss 302, in probably every performance category. But, a 12-13 Boss has more character then any PP1/2.....probably has a lot to do with the red key lopey idle and side exhaust.

 

[Norm Peterson]

I'm not sure what you mean by base brakes, I have 6 piston Brembo calipers that are larger than his boss. I think my rotors are larger also.

What wasn't immediately apparent to me was whether your front rotors draw air from the back side (the conventional arrangement) or from the wheel side (the 'backwards' base S550 way, either EB or GT). You should have the good kind.

I've been curious about differential overheating since reading about it on this forum. I don't think he has a rear cooler but he may have. Does the independent 8.8 heat up more than the standard axle? We both have the Torsen differentials. In the old days you never heard about this overheating unless it was pro racing. What am I missing? Just curious and want to learn, not trying to be a smart ass.

The independent 8.8 does, at least partly because the fluid cannot travel down any axle tubes and use their surface area for heat rejection. I also doubt that airflow around the diff housing in its IRS cradle is as good as it is around a stick-axle pumpkin. There's also the matter of exhaust routing, which gets really tight in the S550.


I'm fully aware that the S550 was developed to be better than the S197, but if the S197 is no longer stock and the S550 is, it's somewhat less clear.


Norm

 

[Jbraun2828]

Performance aside, I would take the boss every day of the week and twice on Sunday.

 

[noac]

Yes the Boss 302 cars are awesome. I bought mine new and sold it a few years ago. I did well selling i, it made a mistake. The car had 10k miles but was in stunning condition. Someday I’ll get a 12 Laguna Seca.

 

[5.ooooooo]

While not a 100% match, the
- 2019 Mustang GT PP2 did a lap at VIR in 2:53.8.
- 2012 Boss 302 Laguna Seca did a lap at VIR in 3:02.8
- 2015 Mustang GT did a lap at VIR in 3:05.2

I understand you said equal drivers, equal drivers, etc. Something to take away that many people forget. These track times were set on a track with a professional driver. You, nor your friend, are professional drivers and won't be able to put down said lap times. Even though your 2019 PP1 is technically faster and handles better, it could still be a driver's race.

Lightning Lap Results 2006 to 2021: Every Car, Every Lap Time (caranddriver.com)

Funny how the boss and 15 GT match there engine displacement

 

[19gtaz]

I have owned both. A PP1 car will take a Boss 302, in probably every performance category. But, a 12-13 Boss has more character then any PP1/2.....probably has a lot to do with the red key lopey idle and side exhaust.

I thought the red key would have more lope. You can hear it but nothing like a large cam, but I'm old school, it definitely sounds good, he has Borla mufflers, but I expected more. Cool car no matter how you look at it.

 

[Trap]

I went form a 2020 GT Premium with PP!, magnaride and Active exhaust, Really liked the car, but I had always wanted a Boss, so I sold it and bought one.
Yes the 2020 was way more refined. but the Boss is so much more fun. For a long trip I would prefer the 2020, But going for a cruise the Boss win's.
As to faster in the quarter the taller gearing in the MT transmission on the 2020 vs the tighter gearing on the MT in the Boss hurts the 2020 in my opinion.
Now the Brembo Brake Pkg on the 2020 GT PP1, wins hands down

 

[Cobra Jet]

I went form a 2020 GT Premium with PP!, magnaride and Active exhaust, Really liked the car, but I had always wanted a Boss, so I sold it and bought one.
Yes the 2020 was way more refined. but the Boss is so much more fun. For a long trip I would prefer the 2020, But going for a cruise the Boss win's.
As to faster in the quarter the taller gearing in the MT transmission on the 2020 vs the tighter gearing on the MT in the Boss hurts the 2020 in my opinion.
Now the Brembo Brake Pkg on the 2020 GT PP1, wins hands down

What’s the actual difference in the Brembo brakes - the B302 came with Brembos too. Disc rotor size, front caliper piston count? I mean if that’s a concern I’m sure it’s an easy upgrade to newer Brembos.

 

[Trap]

What’s the actual difference in the Brembo brakes - the B302 came with Brembos too. Disc rotor size, front caliper piston count? I mean if that’s a concern I’m sure it’s an easy upgrade to newer Brembos.

The 2020 PP1 had 6 piston Brembo fronts with a larger disc. The rear If I remember right was 4 piston, with a larger rotor. These definitely were better than the Boss's Brembo 4 Piston front, smaller rotor and the stock rear single Piston brakes.

Yes the upgrade would not be that difficult. That is the one area I think Ford should have stepped up on with the Boss.

 

[accel]

I've been curious about differential overheating since reading about it on this forum. I don't think he has a rear cooler but he may have. Does the independent 8.8 heat up more than the standard axle? We both have the Torsen differentials. In the old days you never heard about this overheating unless it was pro racing. What am I missing? Just curious and want to learn, not trying to be a smart ass.

I thought 2015 did not overheat.

Only 2016+ started overheating. That's when they added rear diff temp sensor.

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