Front Coil Overs on a 100 series? Possible?

[spressomon]

Seems like a lot of work and expense for little if any real gain for 100 IFS. Not sure if you'd have the ease of compression/stuffing we do now since the spring pivot is farther outboard...

For me, when climbing, its the torque induced weight transfer/lifting of our IFS that is the biggest compromise. Might as well SAS it...

 

[bamabrock]

I just wanted to point out that many Porsches use torsion bars.... and so do Formula One cars. Coil springs are easier to swap out, have many more choices... including progressive rate but as far as advantages on an IFS, I don't think it's much different. Actually, the torsion is said to be more durable than coils. T-bar vs coils, it's more about packaging than anything.

I'm well aware having helped worked on some porsches that there are exceptions. I was speaking in generalities when it comes to truck suspensions. Toyota eventually went to the coilover on the LC for a reason.

 

[bamabrock]

Seems like a lot of work and expense for little if any real gain for 100 IFS. Not sure if you'd have the ease of compression/stuffing we do now since the spring pivot is farther outboard...

For me, when climbing, its the torque induced weight transfer/lifting of our IFS that is the biggest compromise. Might as well SAS it...

the russians swap was as easy as swapping shocks, although I wouldn't want to be a test mule for it because I dont like the upper conversion method.

 

[Landbender]

I'm strongly considering this conversion but my method is different
Swapping out the stock shock mounts and welding on u coilover mounts with a body lift
I have hit some large obstacles off road and strongly dislike the way torsion bars respond. I will let you know how it goes.

 

[yotasavg]

Well, I'm sure we're all listening. Can't wait to see what you come up with!

 

[uzj100]

Please figure this out and let it work. This would be huge.

 

[2000UZJ]

How do you plan to address the clearance issue with the UCA at full droop?

 

[Landbender]

How do you plan to address the clearance issue with the UCA at full droop?

planned on seeing what kind of room I had then if it wasn't enough then might go outside of the loop. Worst case scenario is custom upper and lower arms...

 

[Landbender]

the russians swap was as easy as swapping shocks, although I wouldn't want to be a test mule for it because I dont like the upper conversion method.

completely agree as there method looked sloppy and not well thought out, the loop shock/coilover mounts should be plenty strong.

 

[Landbender]

How do you plan to address the clearance issue with the UCA at full droop?

forgot to mention chaos uca's will go on first before and type of r&d will take place. Have a sandrail project going on plan to sell then use some for the cruiser

 

[ashkhan]

Looking at the front suspenion of the 100 series and how robust the upper shock mount is, got me thinking that we could run coil-overs up front... basically, the AHC is a hydraulic version of a coil over... what do you all think?

I'd especally like to hear from Christo or the other vendors/experts what they think of this idea... any reason why it wouldnt work?

I have done the conversion, deleted torsion bars in my 100 series IFS and installed kings 2.5 coilovers. The only issue I’m facing is the steering axle and boot is rubbing the spring of coilovers at a particular angle. In the shared pictures you can see that steering assembly tie rod axle is too close to the coil spring
What to Do !? I’m thinking of giving one inch spacers to steering box foundation
If you gentlemen have any ideas pl respond

 

[67azcruizr]

for vehicles with cup holders, doesn't get much better
factory 100 on an 80 series platform, factory

*image borrowed

 

[sanya]

@ashkhan that looks great! How much travel are you getting out of it? Is it stock width?

 

[ashkhan]

I have fabricated the lower arm, so it’s wide then stock stronger and sturdy then stock, the only issue I’m facing is how to create space between the shock spring(coilovers) and steering axle boot and axle
I going to foundation of steering box and trying to give spacers out there
Pl let me know what to do to sort this issue
???
So for your question is concerned I would say travel has increased manifold

 

[ashkhan]

I have done the conversion, deleted torsion bars in my 100 series IFS and installed kings 2.5 coilovers. The only issue I’m facing is the steering axle and boot is rubbing the spring of coilovers at a particular angle. In the shared pictures you can see that steering assembly tie rod axle is too close to the coil spring
What to Do !? I’m thinking of giving one inch spacers to steering box foundation
If you gentlemen have any ideas pl respond

View attachment 3358704

View attachment 3358705

View attachment 3358706

View attachment 3358707

 

[2000UZJ]

View attachment 3359166

While there isn't much room, you may be able to create a cradle for the rack and shift it forward 1". I tried to find pictures of your "100", and I'm pretty sure with what you have done with that frame, creating a cradle for the rack is not going to be tough for you. I may be in Lahore at some point in the next 12 months, where about in Pakistan are you?

 

[ashkhan]

I have done the conversion, deleted torsion bars in my 100 series IFS and installed kings 2.5 coilovers. The only issue I’m facing is the steering axle and boot is rubbing the spring of coilovers at a particular angle. In the shared pictures you can see that steering assembly tie rod axle is too close to the coil spring
What to Do !? I’m thinking of giving one inch spacers to steering box foundation
If you gentlemen have any ideas pl respond

View attachment 3358704

View attachment 3358705

View attachment 3358706

View attachment 3358707

Front drive shaft is way to close to the springs of coilovers and on full cutting boots of front drive shaft press against the shock springs which in turn pushes back words. Would any gentleman respond to this issue ….! How to fix this problem ????

 

[Escape Artist]

I am interested to see how this gets resolved. I don’t like how quickly the torsion bars, unload and cause the topping out clunk. Wouldn’t mind trying to get an additional inch travel or more. I was thinking that with the 8HC there mounts are designed to support about half of the weight with the hydraulic cylinder and the other half with the torsion bars. I was thinking about trying to Fab an integrate the coil over AHC hydraulic shocks from the 200 series Lexus.