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Old 01-23-2015, 11:37 AM   #1 (permalink)
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More IFS 4x4 biulds

I have found some new builds out there. Always good to see the good and some others. Tube works new rear end is interesting ? It's doing great numbers on the dyno !!! Tube works just released this picture of their IFS 4x4 this week. Still don't know who put up to the $100,000 k for that ultra 4 front end???

Any other builds out there?




Some builds on p 4x4 and face book below.

https://www.facebook.com/NickNelsonV...type=1&theater


https://www.pirate4x4.com/forum/rock-...6-boomber.html

https://www.facebook.com/MadRam11/posts/764139696968233

Below is OCB new 2 wd TT frame. The same frame will be 4x4. This Truck jigged and every part is repeatable. This is no 1450 truck like some other builds out are getting called!!!!






Last edited by OCB; 01-23-2015 at 12:52 PM.
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Old 01-23-2015, 11:54 AM   #2 (permalink)
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One of the Casey Curries JK.
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Mike Johnson #43 7 time EMC KOH finisher, 6 top 5's
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Old 01-23-2015, 12:44 PM   #3 (permalink)
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One of the Casey Curries JK.
I know Casey has had the kit Brenthel made. First time I seen it in Casey hands. I talked to the guy that commission that IFS Jeep to be built . He took it to Sema and Casey got it from him. He told the first company that he had commissioned to build it to flaked. He had only good things to say about Brenthel, the sub contractor. Then he took it to a shop in Colorado to get it finished.
Thank you for posting it. With Casey driving one, sales will be good. This is my IFS Jeep in the picture below.

OCB


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Old 01-23-2015, 12:59 PM   #4 (permalink)
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I've been following your build. I'm in OC. Where is your shop? I'd like to come check out that LJ.

Mike
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Mike Johnson #43 7 time EMC KOH finisher, 6 top 5's
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Old 01-24-2015, 01:35 AM   #5 (permalink)
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OCB. Isn't your LJ IFS front packaged closer to the motor to keep the CG lower? Always liked your build.

Many of the IFS KOH teams are gusseting the arm mounting tabs to the frame. The faster cars are almost ripping the stock simple tabs off. Many are opting for stronger arms and large upper heims also. The constant bumping up against rocks are taking their toll.

I am also looking at that serious upper J arm on the truck for a top arm in an IRS. We'll see. Always learning.....

I'll look for some others.
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Old 01-24-2015, 08:16 AM   #6 (permalink)
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There's a team from Australia coming to KOH with a ifs/irs with portals all around. It would be nice to get them to chime in more about their car. There's some action shots of it in the competition and events forum but no real shots of the drivetrain.
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Old 01-24-2015, 09:52 AM   #7 (permalink)
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my new one..just have to make real lower arms..


well, and some other stuff
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Old 01-24-2015, 12:04 PM   #8 (permalink)
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Holy Moly Mosebuilt. Out-of-the-hub thinking. Fertile mind.

Will the caliper miss those?
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Old 01-24-2015, 12:19 PM   #9 (permalink)
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Awesome, that gives me some serious inspiration.
Thanks for sharing
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Trying to CNC everything on a beer budget...
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Old 01-24-2015, 02:14 PM   #10 (permalink)
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Holy Moly Mosebuilt. Out-of-the-hub thinking. Fertile mind.

Will the caliper miss those?
yeah, caliper mounts up top..
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Old 01-25-2015, 08:29 AM   #11 (permalink)
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shop

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I've been following your build. I'm in OC. Where is your shop? I'd like to come check out the LJ

Mike
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Old 01-25-2015, 08:46 AM   #12 (permalink)
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Originally Posted by ISDTBower View Post
OCB. Isn't your LJ IFS front packaged closer to the motor to keep the CG lower? Always liked your build.

Many of the IFS KOH teams are gusseting the arm mounting tabs to the frame. The faster cars are almost ripping the stock simple tabs off. Many are opting for stronger arms and large upper heims also. The constant bumping up against rocks are taking their toll.

I am also looking at that serious upper J arm on the truck for a top arm in an IRS. We'll see. Always learning.....

I'll look for some others.
Yes the COG was way the motor is mounted like that. Most of the desert designs IFS front end fall short when you factor in rock hits.

IMO if you can't take a big rock hit in the your IFS KOH rig, then your not going to be a winner . Light weight is great, but you have to no down time finish the race!

If you go J arm it's hard to keep the rear of the tub.

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Old 01-25-2015, 08:52 AM   #13 (permalink)
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my new one..just have to make real lower arms..


well, and some other stuff

Very interesting designs you have there!! Looks like you can run 2 no plunging CV with that design. A lot of wheel travel to be had there.

VERY cool to see out side the box work like this.
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Old 01-25-2015, 07:31 PM   #14 (permalink)
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Nick Nelson's TT is coming along great. We are getting started on my 4wd truggy as soon as we get back from KOH. Pretty sure Paul Horchel is the one who had TW's design the new front kit.
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Old 01-26-2015, 04:41 PM   #15 (permalink)
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A little birdie dropped into my mail box with the attached video. Interesting as it is not a recent thought.

What do people think about this system being strong enough with say two 934.5 CV's instead of a 30 series with a 35 spline shaft.....in a KOH Car. ???

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Old 01-26-2015, 05:08 PM   #16 (permalink)
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What do people think about this system being strong enough with say two 934.5 CV's instead of a 30 series with a 35 spline shaft.....in a KOH Car. ???
I tried to get essentially that exact question answered in this thread:

https://www.pirate4x4.com/forum/gener...l#post28992177

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If a theoretical drive line was designed that limited the CVs to say 30 degrees total and yet still allowed 45 degree articulation of both control arm travel and steering angle, would the total CV failure rate drop dramatically, or are other failure modes (boot failures due to an intrusion lets say) so statistically significant that the total failure rate would still be high?

Didn't really get any good answers but would sure love to have them.

JB
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Old 01-26-2015, 07:59 PM   #17 (permalink)
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the old Mac Pherson 4wd trophy truck had 2 outer "Cornay joints" linked like that
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Old 01-26-2015, 08:01 PM   #18 (permalink)
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Very interesting designs you have there!! Looks like you can run 2 no plunging CV with that design. A lot of wheel travel to be had there.

VERY cool to see out side the box work like this.
it does take two non plunging-you are right..25" travel
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Old 01-26-2015, 08:11 PM   #19 (permalink)
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I know there has got to be pictures of it somewhere. A few years back, a guy showed up to a VORRA race with a IFS/IRS car that used the outer hub assemblies from a Hummer I believe. It had a mid mounted Ford BB with headers that looked like they came from a boat.

Word had it the guy was from Reno and had been building the thing for 10 years. He even built his own custom 4" shocks. It was nuts. The only thing I could compare it to is maybe some of the most cutting edge Ultra 4 cars or an 1/8th scale R/C car made in 1:1 scale.

I only ever remember seeing him run at Prairie City one time. It could probably work for KOH. I'd love to know what ever happened to the guy/car...
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Old 01-26-2015, 08:16 PM   #20 (permalink)
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Shark

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Originally Posted by lxh0318 View Post
Nick Nelson's TT is coming along great. We are getting started on my 4wd truggy as soon as we get back from KOH. Pretty sure Paul Horchel is the one who had TW's design the new front kit.
Very cool to see a new 4x4 TT. It has been a long time since the Shark was built. I think all this new tech will trickle down slowly to refined IFS 4x4 race cars. Still looking for the right of it in picture of Herbst shark.
Thank you for posting

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Old 01-26-2015, 08:21 PM   #21 (permalink)
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3 CV video

Quote:
Originally Posted by ISDTBower View Post
A little birdie dropped into my mail box with the attached video. Interesting as it is not a recent thought.

What do people think about this system being strong enough with say two 934.5 CV's instead of a 30 series with a 35 spline shaft.....in a KOH Car. ???

https://www.youtube.com/watch?v=3Dnj...=youtube_gdata
Very interesting ISDTBOWER. Well that will help move things along.
looks like it needs a plunging axle or CV for that design.

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Old 01-26-2015, 09:47 PM   #22 (permalink)
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Big Mac

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Originally Posted by mosebilt View Post
the old Mac Pherson 4wd trophy truck had 2 outer "Cornay joints" linked like that
Big Mac was first TT that got me thinking IFS 4x4 . They where ahead of the current CV's tech so they went with the Cornay joint. Chevy spent 50K in R&D back then. They took them off and limited it for CV joints. Big Mac is still here in So Cal.

The video has 3 CV joints. # 3 is on the same plane as the spindle. One joint for turning, one for up and down. Way less stress on the outer two.
Below are some pictures of Big Mac front end and Cornay joint.

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Old 01-26-2015, 11:00 PM   #23 (permalink)
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A few years back, a guy showed up to a VORRA race with a IFS/IRS car that used the outer hub assemblies from a Hummer I believe. It had a mid mounted Ford BB with headers that looked like they came from a boat.

Brad Falin is who you are thinking about. Fernley, nevada. I believe he crewed for Rod Halls Hummers to learn the parts. He ran a couple smaller rigs before building the KOH car below. It used Hummer portals in the front IFS, and it looked like he changed the geometry for better steering. The A arms were aluminum. In the rear he attached the Hummer portals to a solid axle with 4 bar links. The car had a Duramax diesel. The radiator fan was a hydraulic unit.

His car before that was a BB Ford, I believe. he about ran me over one time on the bike. He knows how to race.

Notice the good camber with body roll and turning. It can and is being done. Desert IFS pushers (2wd) seem to think different. (Just the opinion of a few)

Brad is crazy inventive!!!!! And a really cool guy

Moses Lundel interviewed him and featured his car.

Moses Ludel's 4WD Mechanix Magazine - Brad Falin's Duramax Diesel at the 2012 Griffin KOH Race
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Old 01-26-2015, 11:50 PM   #24 (permalink)
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Yeah, Falin's Class 1(?) car was rad. There are some pictures of it on RDC somewhere. Talked to him about it once while doing some research for a project, but that was right around the time HMMWV parts were starting to become harder to get.
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Old 01-27-2015, 10:33 AM   #25 (permalink)
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Yes! We're talking about the same guy, because I remember seeing the hydraulic fan motors and being blown away with that idea.

It's cool to hear the guy is still around, the car I saw was crazy inventive.
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