IFS travel gain

[ShottsUZJ100]

just bored here...but how do you figure 16" of rear wheel travel...just trying to figure it out, not start a pissing contest.

"Shock travel" does not equal "wheel travel" which also does not equal "articulation".

Measured from compression to full extension the rear travel was over 16-inches.

This makes sense because my standard OME 100 was just over 13-inches. I've added 2.6" more extension. More is available with a 33" tire due to lesser bump-stop requirements.

The actual "articulation" spec is much greater. I believe in the 25-26" range...same as an L-shocked 80-series.

 

[FJBen]

"Shock travel" does not equal "wheel travel" which also does not equal "articulation".

Measured from compression to full extension the rear travel was over 16-inches.

This makes sense because my standard OME 100 was just over 13-inches. I've added 2.6" more extension. More is available with a 33" tire due to lesser bump-stop requirements.

The actual "articulation" spec is much greater. I believe in the 25-26" range...same as an L-shocked 80-series.

I could be dumb today, but I still don't get that...

So is this your logic?
Shock travel is not equal to wheel travel...
Wheel travel does not equal "articulation" or shock travel does equal "articulation"

you said: 16" of rear wheel travel (articulation)(N74L)


Shock travel = stroke of shock, how is able to compress/extend
Wheel travel = how far wheel can stuff/droop limited by bumpstop/shock
Articulation = suspesion in it's range of motion...1 stuffed/other drooped

So you are adding how much you can compress on one side, and how much you droop on the other, from ride height? And thats the 16" you are coming up with? What exactly are you measuring?

. You can only compress as far as your bumpstop, shock (bad) or fender will let you, and extend as far as your suspension (bind) shock or limit strap will let you. So I guess I'm just cloudy on how it's all being measured and from where.

 

[ShottsUZJ100]

I could be dumb today, but I still don't get that...

So is this your logic?
Shock travel is not equal to wheel travel...
Wheel travel does not equal "articulation" or shock travel does equal "articulation"

you said: 16" of rear wheel travel (articulation)(N74L)


Shock travel = stroke of shock, how is able to compress/extend
Wheel travel = how far wheel can stuff/droop limited by bumpstop/shock
Articulation = suspesion in it's range of motion...1 stuffed/other drooped

So you are adding how much you can compress on one side, and how much you droop on the other, from ride height? And thats the 16" you are coming up with? What exactly are you measuring?

. You can only compress as far as your bumpstop, shock (bad) or fender will let you, and extend as far as your suspension (bind) shock or limit strap will let you. So I guess I'm just cloudy on how it's all being measured and from where.

Of course you don't get it. I'm explaining it. I'm the LAST one to explain these techy things.

Best thing....check out an FJ Cruiser add in a magazine. For example...the FJ's rear travel is 9.06" and the articulation is 21.46".

Maybe someone here who knows the "talk" can explain.

 

[FJBen]

guess thats fair enough lol;p

I'm just not sure what you are measuring when you say you measured compressionn to full extension on the rear and it was 16"

 

[ats4x4dotcom]

This makes sense because my standard OME 100 was just over 13-inches. I've added 2.6" more extension. More is available with a 33" tire due to lesser bump-stop requirements.

John, you added a 2.6" longer shock, and a bump stop spacer, so you didnt gain the 2.6" in travel, you only gained .6" with 2" bump spacer.

The articulation you are talking is total, like how far it will lift one wheel off the ground, not just rear.....

You can add .6" extra to a standard 100, to work out yours.

 

[FJBen]

according to that ad in Trails from toyota, they are showing articulation more like an RTI where the rear is lifted. They measure the distance between the bottom of the tire and the ground. Now I don't know if they are saying thats before it lifts a wheel or not at that point.

The FJ cruiser is 545mm or 21" of "articulation" stock...I would assume damn near the same as the 100 series and slightly behind the 80 series.

I guess this is one of those "this is how I interpret it" sorta deals?


Shock travel can only be as long at the shock is capable, 10",12", 14" etc
Articulation according to Toyota is lifting the rear til some point? 21"

So what did you measure to get 16" of rear wheel travel???

 

[ShottsUZJ100]

The FJ cruiser is 545mm or 21" of "articulation" stock...I would assume damn near the same as the 100 series and slightly behind the 80 series.

You can now equip a 100 to travel the same in the rear as an 80. (Using an 80 rear L-shock) And yes, the travel is much greater than an FJ Cruiser.

 

[ats4x4dotcom]

So what did you measure to get 16" of rear wheel travel???

Seems John missed your question.....

Im sure he will post an answer for us soon.

 

[100 TD]

Is it at all possible to leave Johns arse end out of this IFS thread, it seems it pops up in so many threads, lets try and keep this one to the IFS?

 

[ShottsUZJ100]

Arsh here. I don't have 16" rear travel. A 33" N74L will though. I'm at 14.5".

 

[dinos4x4]

There is not a great deal u can do with IFS

there some kits you can get in Australia that spce the front diff down 20mm so you can wind up the torsion bars and it keeps the drice shafts level .
gives u enough lift for 285s

 

[FJBen]

Arsh here. I don't have 16" rear travel. A 33" N74L will though. I'm at 14.5".

I didn't mean to stir up s***e...I'm just wondering how/what is measured to get that?

I understand an 11" shock has 11" of travel

and that articulation around 20" + (i'm assuming the ramp)

But how do you figure rear wheel travel???

 

[FirstToy]

instead of trying for quantity of inches, what about simply improving the quality of it? i4c4lo has the goods. I think he got more travel but not sure- that is not what he was aiming for. His strategy, I believe, is getting the maximum quality out of what he has.

Darren, I'm impressed w/ the new IFS setup- why the horizontal uniball? Interested to know the benefit compared to the vert. ones sold here in the USA.

amando's 100 in progress picture...

 

[ShottsUZJ100]

I didn't mean to stir up s***e...I'm just wondering how/what is measured to get that?

I understand an 11" shock has 11" of travel

and that articulation around 20" + (i'm assuming the ramp)

But how do you figure rear wheel travel???

The shock travels up and down, though the wheel travels more because it's out farther from the shock and it travels in an arc. That's the best I can do.

 

[ShottsUZJ100]

The shock travels up and down, though the wheel travels more because it's out farther from the shock and it travels in an arc. That's the best I can do.

Picture it.....move your wheels out a foot more and re-measure the travel. You'll have even more wheel travel and with the same shock travel.

 

[bulldog-yota]

Picture it.....move your wheels out a foot more and re-measure the travel. You'll have even more wheel travel and with the same shock travel.

There is a difference between wheel travel and side to side articulation.

Best I can describe it as wheel travel is the distance of the up and down travel of the whole axle or wheels on IFS. As in how far the axle or IFS wheels will go up and and down in unisen on both sides. The placement of the wheel or length of the axle has nothing to do with this.

Articulation is the the difference between the 2 wheels on the same axle when the one is fully up and the other fully down. Here you will see a difference between IFS and an axle, and also the palcement of the wheel and length of the axle reletive to the placement of the shock will make a difference.

On wheel travel you will rarely see more than the shock travel, unless it is IFS where the leverage action of the front control arms come into play. It is normal for truck to have the same travel on the front and rear with IFS and yet have a lot more articulation in the rear with an axle.

 

[ShottsUZJ100]

There is a difference between wheel travel and side to side articulation.

Best I can describe it as wheel travel is the distance of the up and down travel of the whole axle or wheels on IFS. As in how far the axle or IFS wheels will go up and and down in unisen on both sides. The placement of the wheel or length of the axle has nothing to do with this.

Articulation is the the difference between the 2 wheels on the same axle when the one is fully up and the other fully down. Here you will see a difference between IFS and an axle, and also the palcement of the wheel and length of the axle reletive to the placement of the shock will make a difference.

On wheel travel you will rarely see more than the shock travel, unless it is IFS where the leverage action of the front control arms come into play. It is normal for truck to have the same travel on the front and rear with IFS and yet have a lot more articulation in the rear with an axle.

He was asking me about my REAR travel measurement.

 

[bulldog-yota]

He was asking me about my REAR travel measurement.

If you read what I wrote . On your rear axle you will not have more travel than the shock travel itself. You will have more articulation, but not more travel. WHen you drive over dunes or dessert washboard roads articulation means very little, but up down travel is the name of the game. And you actually prefer stiffer shocks and springs to keep from bottoming or topping out.

 

[bulldog-yota]

instead of trying for quantity of inches, what about simply improving the quality of it? i4c4lo has the goods. I think he got more travel but not sure- that is not what he was aiming for. His strategy, I believe, is getting the maximum quality out of what he has.

Darren, I'm impressed w/ the new IFS setup- why the horizontal uniball? Interested to know the benefit compared to the vert. ones sold here in the USA.

amando's 100 in progress picture...

Very good point!!!!

 

[ats4x4dotcom]

He was asking me about my REAR travel measurement.

which is only .6" more than a 'normal" shock.