Year-by-year 2013+ SHO Change List?

[Eric Morris]

It's a simple matter of mechanical advantage. The PP car has more mechanical advantage with numerically higher gearing. The PP car puts more torque to the wheels at all RPMs, period. That is a fact.

Where you draw the start and finish lines matters due to both cars having the same transmission and the number and timing of shifts affecting things.

Given just the large difference in gearing, I think any non-PP car is going to find it hard to match a PP car in acceleration, no matter the scenario.

If I had planned to drag race mine, I sure as **** would have gotten the PP car simply for the higher gearing.

 

[yaycandy]

It's a simple matter of mechanical advantage. The PP car has more mechanical advantage with numerically higher gearing. The PP car puts more torque to the wheels at all RPMs, period. That is a fact.

Where you draw the start and finish lines matters due to both cars having the same transmission and the number and timing of shifts affecting things.

Given just the large difference in gearing, I think any non-PP car is going to find it hard to match a PP car in acceleration, no matter the scenario.

If I had planned to drag race mine, I sure as **** would have gotten the PP car simply for the higher gearing.

Id like to go against a pp car because mine sure as heck rips hard with a ford racing closed deck engine and oil and ptu cooling. Id need to plug in my vbox and see what the Gs are at hard acceleration with ajp turbo tune. Im at 14k$ with just engine, turbos and tires

 

[SM105K]

Pp is 3.16:1 final drive and non pp is 2.77:1 final drive. So non pp should be quicker and yes pp should be faster because the final drive band is pushed longer to the right so the pp wont get to a gear as quick as a no pp but the yes pp is faster in a couple mile stretch head to head but the no pp would be in front for 15 seconds until its passed at a higher speed if limiter is removed. If limiter is same on both, lower final drive is faster to the same mph
If i got it backwards either way one is quicker and one is faster

Ford has their ratios backwards. It says higher ratio for more acceleration which is false. Higher ratio is more top speed with lower acceleration
https://www.roadandtrack.com/car-cu...2293/final-drive-ratio-engineering-explained/

non pp is quicker to same speed but yes pp is capable of higher speeds if limiter is removed or made higher

The PP should be quicker in all aspects, until top speed with speed limiters removed. PP cars are lower geared for faster acceleration which also limits top speed.

The non PP cars are geared higher, so slower acceleration, but higher top speed all things being equal.

3.16 gear is a shorter/lower gear. 2.77 gear is a taller/longer gear.

 

[yaycandy]

https://www.taurusclub.com/threads/3-16-final-drive.307609/

I trust BPDs word, he’s accomplished alot with the platform with proven info and proof to backup his finding

 

[SM105K]

https://www.taurusclub.com/threads/3-16-final-drive.307609/

I trust BPDs word, he’s accomplished alot with the platform with proven info and proof to backup his finding

I trust the math. Stock for stock the PP is quicker to top speed. The non pp is slower to top speed but has a higher top speed....which 99.9 percent of the time is completely useless.

Being tuned completely changes the dynamics on multiple fronts. However a tuned to tuned comparison is hard because too many factors change. So yes BPD is correct in that respect when the cars are tuned.

I want to run a non pp car and I have the opportunity too almost every Saturday night here in Phoenix. There is another member on this board who is my friend and has a tuned 17 non pp car who runs E30 as well. However, the race will be apples to oranges, because I have lighter and wider wheels, AD tq mounts, H&R springs, and every bolt on you can put on a SHO minus HPFP and turbos.

 

[stripSHO]

Also, if the PP has a higher top-speed, at some point the PP becomes the quicker car (full mile race?)

There's no guarantee that the non-PP has a higher top speed though. Depends on where exactly the motor sits in its power band at that speed. I would guess there's a small window of around 170-180 mph where the PP couldn't reach if the non-PP could. Outside of that though it depends. Even with the 3.16 final drive the PP is geared to roll to 235 mph given enough power.

Also there seems to be some confusion, but "taller" gears have a numerically lower ratio. 2.77 is taller gearing than 3.16.

 

[yaycandy]

There's no guarantee that the non-PP has a higher top speed though. Depends on where exactly the motor sits in its power band at that speed. I would guess there's a small window of around 170-180 mph where the PP couldn't reach if the non-PP could. Outside of that though it depends. Even with the 3.16 final drive the PP is geared to roll to 235 mph given enough power.

Also there seems to be some confusion, but "taller" gears have a numerically lower ratio. 2.77 is taller gearing than 3.16.

I think thats where i was getting confused, with thinking the bigger number was taller.

 

[Eric Morris]

That's why manufacturers use numbers to describe the gear set. Saying "tall gear" means nothing specifically. Numbers are quantitative. Tall or short is qualitative.

 

[KINGSHOKONG]

God dammit! How many times are we going to go over this? I've owned a 2014 non PP and I have a 2016 PP now that's all mods. Does anyone in the Detroit area have a stock Non PP and does anyone have a stock PP ?? Let's line em up and put this to bed. Any takers???

 

[yaycandy]

God dammit! How many times are we going to go over this? I've owned a 2014 non PP and I have a 2016 PP now that's all mods. Does anyone in the Detroit area have a stock Non PP and does anyone have a stock PP ?? Let's line em up and put this to bed. Any takers???

Seems like there are a good bit of members from around the Detroit area. Is there like a billboard ad or something? Lol

 

[stripSHO]

God dammit! How many times are we going to go over this? I've owned a 2014 non PP and I have a 2016 PP now that's all mods. Does anyone in the Detroit area have a stock Non PP and does anyone have a stock PP ?? Let's line em up and put this to bed. Any takers???

Stock PP here, just outside Ypsi. I'm game. We could do stock vs stock and tune vs tune, best of three each. Best would be to meet up at Milan though so we could eliminate reaction time from the equation. But that also means waiting until spring and i'm really not trying to still be stock at that point

 

[Johnbigdog]

Stock PP here, just outside Ypsi. I'm game. We could do stock vs stock and tune vs tune, best of three each. Best would be to meet up at Milan though so we could eliminate reaction time from the equation. But that also means waiting until spring and i'm really not trying to still be stock at that point

I'm in Howell. I'll still have a stock 2016 P.P.

 

[Steinbeck]

Pp is 3.16:1 final drive and non pp is 2.77:1 final drive. So non pp should be quicker and yes pp should be faster because the final drive band is pushed longer to the right so the pp wont get to a gear as quick as a no pp but the yes pp is faster in a couple mile stretch head to head but the no pp would be in front for 15 seconds until its passed at a higher speed if limiter is removed. If limiter is same on both, lower final drive is faster to the same mph
If i got it backwards either way one is quicker and one is faster

Ford has their ratios backwards. It says higher ratio for more acceleration which is false. Higher ratio is more top speed with lower acceleration
https://www.roadandtrack.com/car-cu...2293/final-drive-ratio-engineering-explained/

non pp is quicker to same speed but yes pp is capable of higher speeds if limiter is removed or made higher

I am pretty certain you have this backwards. A taller gear in the final drive is the smaller number 2.77 and is faster top end. A short gear final drive is the larger number 3.16 in the PP and allows for higher rpm at any given speed and thus more acceleration but less top end.

 

[GTRPhilly]

Not sure what folks are saying about 2:77 vs 3;16. While a small difference the higher gear will be quicker every time. Not only this but the rpm’s will be a tad higher after the shifts taking less time to redline.
One of my early foxes I went from 2;73 to 3;73 which is a pretty big jump. This was an automatic at the time and it made a huge difference. Not even close.

 

[Ta2dResqr]

Not sure what folks are saying about 2:77 vs 3;16. While a small difference the higher gear will be quicker every time. Not only this but the rpm’s will be a tad higher after the shifts taking less time to redline.
One of my early foxes I went from 2;73 to 3;73 which is a pretty big jump. This was an automatic at the time and it made a huge difference. Not even close.

They are talking about a specific situation. The gear difference requires an additional shift in a 1/4 mile. The time it takes to shift offsets the faster acceleration.

 

[jtreber]

That's the exact reason I preferred the PP 3.17 gearing. In my years of ownership, I was at the strip only one time. On the street with daily driving I found the gearing difference noticeable after driving both.