Dealership Builds The 650 HP F-150 Lighting That Ford Won't

Started by cawimmer430, September 15, 2017, 04:41:18 PM

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RWD > FWD
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Quote from: 68_427 on November 27, 2016, 07:43:14 AM
Or order from fortune auto and when lyft rider asks why your car feels bumpy you can show them the dyno curve
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68_427

Quotewhere were you when automotive dream died
i was sat at home drinking brake fluid when wife ring
'racecar is die'
no


veeman

Quote from: 68_427 on September 17, 2017, 10:06:01 PM
Hence why they only made 1?

Also I wouldn't be surprised if the new 2018 RCSB with either the 2.7 or 5.0 will be almost as quick as the Raptor.  That appeals to me because I don't drive offroad, and I don't have a family or friends ( :evildude:).  I prefer the look and the fact I could get one for under $30k.


Yeah that makes sense.  This truck originally posted stickered for a hair under $50,000 though.

12,000 RPM

I do wonder what a RCSB F150 5.0 would do with good suspension/ brakes/ tires. Tire tech has moved so far forward from the first lightning. I think there are crossovers puking close to a g on the skidpad. That wouldn't be too make it a canton carver... its more an issue of safety
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FoMoJo

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MX793

Quote from: 12,000 RPM on September 18, 2017, 09:26:02 AM
I do wonder what a RCSB F150 5.0 would do with good suspension/ brakes/ tires. Tire tech has moved so far forward from the first lightning. I think there are crossovers puking close to a g on the skidpad. That wouldn't be too make it a canton carver... its more an issue of safety

Weight distribution will be the biggest hurdle.  If nothing else, crew cabs with the short bed carry more of their weight on the back tires.
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12,000 RPM

I would bet trucks can accomodate pretty big effing tires. An RCSB isn't much heavier than something like a Hellcat if at all. 305/40R20 lmao.
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giant_mtb

Quote from: MX793 on September 18, 2017, 10:43:53 AM
Weight distribution will be the biggest hurdle.  If nothing else, crew cabs with the short bed carry more of their weight on the back tires.

I'd imagine RCSBs are fairly light on the rear end?  I know a couple 70lb sand bags in my bed makes a big difference in the winter. :lol:

CaminoRacer

Quote from: giant_mtb on September 18, 2017, 04:17:35 PM
I'd imagine RCSBs are fairly light on the rear end?  I know a couple 70lb sand bags in my bed makes a big difference in the winter. :lol:

That's why my first post said I'd move the radiator to the back. Battery too.
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68_427

Quote from: 12,000 RPM on September 18, 2017, 04:00:34 PM
I would bet trucks can accomodate pretty big effing tires. An RCSB isn't much heavier than something like a Hellcat if at all. 305/40R20 lmao.

Quotewhere were you when automotive dream died
i was sat at home drinking brake fluid when wife ring
'racecar is die'
no


12,000 RPM

Does that spec sheet have weight distribution? Hellcats are 56-57/43-44.
Protecctor of the Atmospheric Engine #TheyLiedToUs

68_427

Quotewhere were you when automotive dream died
i was sat at home drinking brake fluid when wife ring
'racecar is die'
no


MX793

Quote from: 12,000 RPM on September 18, 2017, 04:00:34 PM
I would bet trucks can accomodate pretty big effing tires. An RCSB isn't much heavier than something like a Hellcat if at all. 305/40R20 lmao.

Friction is a function of normal force.  Wider tires aren't going to increase grip between the rubber and road surface, nor does it actually increase the contact patch.  You need weight.

The last Lightning was 57/43.

Wouldn't use a Hellcat as a great metric; they don't handle particularly well.  A regular Mustang GT will handily outlap a Hellcat on a road course despite being down like 300 hp.
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CaminoRacer

Unless you run lower tire pressure. Then the wider tire will have a larger contact patch
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shp4man

Weight distribution? If refrigerators are to be hauled, compromises must be made.  ;)

MX793

Quote from: CaminoRacer on September 19, 2017, 07:43:05 AM
Unless you run lower tire pressure. Then the wider tire will have a larger contact patch

For a given tire pressure, under a given load, any 2 tires will have the same contact patch regardless of tire width.  Structural nuances (radial vs bias ply, radial belt arrangement, etc) not withstanding.
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CaminoRacer

Quote from: MX793 on September 19, 2017, 07:55:07 AM
For a given tire pressure, under a given load, any 2 tires will have the same contact patch regardless of tire width.  Structural nuances (radial vs bias ply, radial belt arrangement, etc) not withstanding.

Yes. But a wider tire with lower pressure will have the same length patch of a slightly higher inflated skinnier tire, while also having more width. You could deflate the skinny tire to the same psi, but it'll just increase the length of the patch, which isn't as useful.
2020 BMW 330i, 1969 El Camino, 2017 Bolt EV

MX793

Quote from: CaminoRacer on September 19, 2017, 08:36:44 AM
Yes. But a wider tire with lower pressure will have the same length patch of a slightly higher inflated skinnier tire, while also having more width. You could deflate the skinny tire to the same psi, but it'll just increase the length of the patch, which isn't as useful.

In terms of stress area, it makes no difference.  Depending on your goal, a longer, narrower patch can be more beneficial than a wide and short one of the same area.
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CaminoRacer

That's why you run lower pressure in your 335s so that the patch is the same length while also being wider... That's what the BFG guys do.
2020 BMW 330i, 1969 El Camino, 2017 Bolt EV

MX793

Quote from: CaminoRacer on September 19, 2017, 08:54:25 AM
That's why you run lower pressure in your 335s so that the patch is the same length while also being wider... That's what the BFG guys do.

For radial tires, reduced pressure typically lengthens the contact patch.  It may also result in the center of the tread lifting.  Higher wear on the shoulders vs the center is a classic sign of an under inflated radial tire.
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2016 Ford Mustang GTPP / 2011 Toyota Rav4 Base AWD / 2014 Kawasaki Ninja 1000 ABS
1992 Nissan 240SX Fastback / 2004 Mazda Mazda3s / 2011 Ford Mustang V6 Premium / 2007 Suzuki GSF1250SA Bandit / 2006 VW Jetta 2.5

CaminoRacer

Yes, it lengthens the patch. 275 vs 335 tire, the 335 at 31 psi is gonna have a shorter, wider patch than the 275 @ 31 psi. So you drop the 335 to 29 psi in order to lengthen the patch. This gets you a larger overall patch.

It's not a good idea to lower the 275 down to 29 psi because then you'd have too long of a patch and start running into issues with the center of the tread lifting and stuff, like you mentioned.
2020 BMW 330i, 1969 El Camino, 2017 Bolt EV