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Ford Raptor Suspension Discussion and Modifications Forum [GEN 2]

How Did Ford Increase Wheel Travel


This is a discussion on How Did Ford Increase Wheel Travel within the Ford Raptor Suspension Discussion and Modifications Forum [GEN 2] forums, part of the GEN 2 (2017+) Ford F-150 Raptor Forums category!
Just Curious if anybody knows exactly how Ford increased front and rear wheel travel by 2", particularly in the front.? ...


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Old 08-01-2017, 09:34 AM   #1 (permalink)
 
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Default How Did Ford Increase Wheel Travel
Just Curious if anybody knows exactly how Ford increased front and rear wheel travel by 2", particularly in the front.? Also where is the travel found in the suspension cycle? Can't find any information on it. Thx!




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Old 08-01-2017, 09:43 AM   #2 (permalink)
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This is a complete WAG, but I'd guess that it's in the stroke of the shocks.


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Old 08-01-2017, 10:26 AM   #3 (permalink)
 
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In the Gen1 there was physical binding that would occur, my guess is they made some simple changes to eliminate those touch points.


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Old 08-01-2017, 10:35 AM   #4 (permalink)
 
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Originally Posted by WarSurfer View Post
In the Gen1 there was physical binding that would occur, my guess is they made some simple changes to eliminate those touch points.
I think you're right. I'm betting they just tweaked the whole front just a little. Going from 12 (Gen1) to 13 (Gen2) wouldn't take much.

Suspension travel is AFAIK measured at the hub and is done by cycling from full droop to full bump. So for example on the Gen1 there's 12.1" of travel up front, but it uses a shock with an 8" stroke, so shock stroke doesn't tell the whole story there.

There's also different travel numbers that get cited in the off-road community. Basically total travel vs usable travel. Total travel would be the farthest extent the suspension can cycle, so metal to metal contact at both extents. Usable travel is the number you'll actually be able to put to use without binding or metal to metal contact.


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Old 08-01-2017, 03:58 PM   #5 (permalink)
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Originally Posted by Aaron View Post
I think you're right. I'm betting they just tweaked the whole front just a little. Going from 12 (Gen1) to 13 (Gen2) wouldn't take much.

Suspension travel is AFAIK measured at the hub and is done by cycling from full droop to full bump. So for example on the Gen1 there's 12.1" of travel up front, but it uses a shock with an 8" stroke, so shock stroke doesn't tell the whole story there.

There's also different travel numbers that get cited in the off-road community. Basically total travel vs usable travel. Total travel would be the farthest extent the suspension can cycle, so metal to metal contact at both extents. Usable travel is the number you'll actually be able to put to use without binding or metal to metal contact.
So, the hub is mounted to the control arms, and the control arms move in an arc... so if the shock were attached to, say, the lower control arm between the pivot point (frame) and the hub (outer-most point of the control arm), then it certainly makes sense to have a hub/control arm tip total travel of 12+ inches with a shock stroke of 8 inches. Similarly, a relatively minor increase in shock stroke length would have an amplified effect on hub/control arm tip travel.

That said, if there are other gubbins that get in the way and/or bind up, then all bets are off, regardless of shock stroke.
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Old 08-01-2017, 04:40 PM   #6 (permalink)
 
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Originally Posted by BurnOut View Post
So, the hub is mounted to the control arms, and the control arms move in an arc... so if the shock were attached to, say, the lower control arm between the pivot point (frame) and the hub (outer-most point of the control arm), then it certainly makes sense to have a hub/control arm tip total travel of 12+ inches with a shock stroke of 8 inches. Similarly, a relatively minor increase in shock stroke length would have an amplified effect on hub/control arm tip travel.



That said, if there are other gubbins that get in the way and/or bind up, then all bets are off, regardless of shock stroke.


Nailed it.


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Old 08-01-2017, 05:15 PM   #7 (permalink)
 
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LED headlights made it happen :)
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Old 08-01-2017, 06:12 PM   #8 (permalink)
 
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Originally Posted by BurnOut View Post
So, the hub is mounted to the control arms, and the control arms move in an arc... so if the shock were attached to, say, the lower control arm between the pivot point (frame) and the hub (outer-most point of the control arm), then it certainly makes sense to have a hub/control arm tip total travel of 12+ inches with a shock stroke of 8 inches. Similarly, a relatively minor increase in shock stroke length would have an amplified effect on hub/control arm tip travel.

That said, if there are other gubbins that get in the way and/or bind up, then all bets are off, regardless of shock stroke.
New frame so it would not be tough to make a minor change in geometry that would net some additional travel. No idea if it is on compression or droop.
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Old 08-07-2017, 07:21 AM   #9 (permalink)
 
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Might have something to do with longer front control arms which also contribute to the wider track - then ilfting the entire truck ~3"... I could be wrong though...


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Old 08-13-2017, 12:50 PM   #10 (permalink)
 
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Default How Did Ford Increase Wheel Travel
Originally Posted by Big-Foot View Post
Might have something to do with longer front control arms which also contribute to the wider track - then ilfting the entire truck ~3"... I could be wrong though...


The Gen 2 is 1/4" narrower than the Gen 1.

As I posted earlier, the increased travel HAD to have come from a redesign eliminating mechanical bind - otherwise the bind would still exist - and bind was the limiting factor on Gen 1s. Just adding a uni upper gave an additional 1.5" of droop travel while still using the factory 2.5s.

I'd be curious to see the difference between LCA coilover mounting points on the factory cast arms to see what changed there as well.

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