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Suspension / Lifts This is the place to discuss the suspension, lift systems, and other stuff underneath your Jeep Commander

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post #1 of 18 (permalink) Old 04-27-2009, 09:38 AM Thread Starter
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Hope for IFS

Well, it is somewhat related....Just wanted to share my thoughts on the strength of a well built Independent Front Suspension.

The Axles I used to run on these FWD drag cars took a severe beating. Not only was the traction much more than an off road vehicle, we were running similar diameter tires(28"-33"). My first car was close to 700HP, and the second car was over 1000HP with Nitrous. Initial impact on the drivetrain at the start line was tremendous. A two step ignition Rev limiter held the turbo boost at 20psi/300+/- HP. Tourque had to have been a few hundred ft.lbs.

There will be Axles to support 35" Tires with a Hemi and 4:1 transfer case reduction.



Here are a few pics of the custom IFS with HD axles.



Tires:
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post #2 of 18 (permalink) Old 04-27-2009, 09:51 AM
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Looks nice except I think someone put your motor in sideways. LOL

Bright Silver 4.7L 2.25 RR/OME lift, Kumho KL71 265/70/17, Flashpaq, Lights, rack, intake, Super44, mopar skids, 4x belly guard, rear fog lights, MM9500 winch, GetLost4x4 winch mount

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post #3 of 18 (permalink) Old 04-27-2009, 10:06 AM
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Is it really the lack of strength that off-roaders don't like about IFS? I always thought it was because of the lack of articulation - reaching out for the ground while its way up in the air.

RIP - Silver '06 Limited; 5.7 Hemi; 2" TerraFlex Lift; 255/70R17 Bridgestone Dueler REVOS, Horizontal Inclinometer, Signal Frog Antenna Ball, Surco Safari 50"x50" Roof Rack, GetLost4x4 bumper, Bulldog 9k Winch, GetLost4x4 Rock Rails - (should have added a snorkel)
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post #4 of 18 (permalink) Old 04-27-2009, 10:17 AM Thread Starter
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Quote:
Originally Posted by PolarBZ View Post
Is it really the lack of strength that off-roaders don't like about IFS? I always thought it was because of the lack of articulation - reaching out for the ground while its way up in the air.
You are also correct sir. The traditional Ball joints are normally the limiting factor on IFS. But with a little Fab work and some Heim joints/extended range Ball joints, I have a feeling we will see much more of this in the future.

Example1:

Shannon Campbells IFS Rock Racer....SANS AXLES:







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post #5 of 18 (permalink) Old 04-27-2009, 10:42 AM
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I think a lot of the push against IFS is from the traditionalist that sees the solid axle as the only option. I agree that it is nice to be able to have more feet on the ground, but I think that - as you have shown - IFS can be just as capable in offroad conditions. In fact, I think IFS could be MORE capable if it were developed to be.

However, I think that in a few years, the IFS argument will be moot. When the all-electric Wranglers come out with independent electric motors for each wheel - the suspension could almost be made irrelevant. If the motors will have power regardless of their distance from the body, the only limiting factor in articulation on an electric Wrangler would be how much you are willing to pay for the longer parts to keep the wheels attached to the frame.

RIP - Silver '06 Limited; 5.7 Hemi; 2" TerraFlex Lift; 255/70R17 Bridgestone Dueler REVOS, Horizontal Inclinometer, Signal Frog Antenna Ball, Surco Safari 50"x50" Roof Rack, GetLost4x4 bumper, Bulldog 9k Winch, GetLost4x4 Rock Rails - (should have added a snorkel)
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post #6 of 18 (permalink) Old 04-27-2009, 12:08 PM
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SORRY,

i like IFS only in 2 situations, Baja, and on the street.

the rest of the time it sucks.

its squeaks all the time, parts a weak, and on the commander, there is no option for a front locker.

i'm going for a JK D44 front and rear when i have saved enough pennies. i want real lockers and real gear options.
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post #7 of 18 (permalink) Old 04-27-2009, 03:13 PM
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I think it all comes down to how hard you wheel your vehicle and what type of terrain you are wheeling your vehicle on. During the previous trips to Rausch Creek Off Road Park I have had no problems running the trails with IFS. However, I definately agree that it would be nice to have the articulation of a SFA. I highly doubt that anyone is going to come out with a SAS for the Commander so maybe we can look at getting a Long Travel IFS lift!




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #8 of 18 (permalink) Old 04-27-2009, 04:45 PM
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making the long travel arms is the easy and inexpensive part.

coilovers = $$$$$$$
mounting = $$$$$$$
long travel CV axles = $$$$$$$

Take that all into consideration....

yep still cheaper to run a straight axle. more reliability in a straight axle. more strength, no screwed up camber issues. no need to jerry rig spacer lifts.

i could really go on for days why i hate IFS.
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post #9 of 18 (permalink) Old 04-27-2009, 04:47 PM
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No IFS, ANDS, or BUTS.
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post #10 of 18 (permalink) Old 04-27-2009, 05:09 PM
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Quote:
Originally Posted by Get Lost 4X4 View Post
making the long travel arms is the easy and inexpensive part.

coilovers = $$$$$$$
mounting = $$$$$$$
long travel CV axles = $$$$$$$

Take that all into consideration....

yep still cheaper to run a straight axle. more reliability in a straight axle. more strength, no screwed up camber issues. no need to jerry rig spacer lifts.

i could really go on for days why i hate IFS.
Well I thought you already said that it wont be possible to do a SAS on the XK. I mean we can sit here all day saying how much better it would be with a SFA but if we cant do it then whats the point.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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