: Ultimate Formula Four Build


Air Ride
05-25-2007, 02:59 PM
Hendrix Motorsports is building this Formula Four for a customer and it will be with out a doubt
”The Ultimate Formula Four”.

Build parts list;
82 long bed frame
Fourmula Four Chassis
3RZ engine
Turbo Trans
Marlin Crawler 23 spline duel case with 4.7 gear
Custom Diamond axles with LC diffs & full flotter rear
Beard Seats

chvyhs
05-25-2007, 03:18 PM
Will it be used in competition? Will we see it at the Hammers?

MT4Runner
05-25-2007, 03:27 PM
It will be the Ultimate, though!!!

Chris
05-25-2007, 03:43 PM
3RZ engine. It wont be a formula toy:shaking:

I'm pretty sure that since he's the guy that builds the chassis' AND started the class, he knows that.

NIce build.

ghettowheeler
05-25-2007, 03:47 PM
wow thats going to be siiiiiiaaaaaaakkkkkkkk.

fj40forlife
05-25-2007, 04:08 PM
3 seat or 4?

mtbrjon
05-25-2007, 05:35 PM
If that's the finished chassis to frame height it will be the lowest i've seen yet. Or maybe it's the solid axle frame that makes the front look so close?

Air Ride
05-25-2007, 06:20 PM
It will be a 4 seater.

The classis is mounted at our usual height, bottom of the rocker even with the top of the frame.

mtbrjon
05-26-2007, 05:45 AM
Guess it's just the arch of the solid axle frame looks close in the front.

Should be a sweet build. We'll keep watching.

BTW-Got the chassis parts Thursday. Fun begins again.

FYRDUDE
05-26-2007, 11:06 AM
Look forward to the build. A friend of mine bought one of your 4 seaters and never finished it. With everyone fitting 4 seats in the 2 seater, wonder why he went with the 4 seater. Probably just more leg/storage room. Keep the pics. coming.:smokin:
Finally something new in the Formula sectioin.:laughing:

Vortec_Cruiser
05-26-2007, 01:15 PM
Look forward to the build. A friend of mine bought one of your 4 seaters and never finished it. With everyone fitting 4 seats in the 2 seater, wonder why he went with the 4 seater. Probably just more leg/storage room.
Actually, if you plan to have adults in the rear seats, you want to either have the true 4-seater (with adequate head coverage) or put an additional bar over their heads in the 2-seater. :)

benttoy
05-26-2007, 05:52 PM
If its half as nice as Mikes x chassie it will without a doubt be sweet:smokin:

ghettowheeler
05-26-2007, 07:41 PM
Hey Mike what do you think the wheelbase will be? I am thinkin about doin another ftoy and i am not sure if i want go with the ftoy 4 seater or the standard.

fj40forlife
05-26-2007, 10:32 PM
It will be a 4 seater.

The classis is mounted at our usual height, bottom of the rocker even with the top of the frame.

seat That What i want to do. a 4 seat. but this looking arould on how to built... I want to see how this one turns out

FYRDUDE
05-28-2007, 02:18 PM
Actually, if you plan to have adults in the rear seats, you want to either have the true 4-seater (with adequate head coverage) or put an additional bar over their heads in the 2-seater. :)

Definately need the "cage extension" on the 2 seat version. That's what's in my near future.

Air Ride
06-12-2007, 10:39 AM
Motor trans and tcase are in.

Air Ride
06-12-2007, 10:43 AM
side view

a2b
06-12-2007, 10:51 AM
why stock motor mounts? is the tcase mount going to be solid?

Air Ride
06-12-2007, 11:12 AM
They modified stock mounts.

Mustard Dog
06-12-2007, 05:52 PM
Dude you're almost done:D

Vortec_Cruiser
06-25-2007, 10:58 PM
Did you cut off the rear of the frame, so it would match the length of the chassis?

a2b
06-26-2007, 12:10 AM
wow, those are going be like 30" lift blocks:flipoff2:

Air Ride
06-26-2007, 01:29 AM
Did you cut off the rear of the frame, so it would match the length of the chassis?
We cut about 5" off the back of the frame.

Vortec_Cruiser
06-26-2007, 09:33 PM
Thanks. :)

Vortec_Cruiser
07-08-2007, 11:27 PM
Looking at your front cross-brace with flared-holes, can I assume that's .120 thick? :)

Vortec_Cruiser
07-10-2007, 04:27 PM
Let's see some more pics. :)

Air Ride
07-11-2007, 03:12 PM
Looking at your front cross-brace with flared-holes, can I assume that's .120 thick? :)


It's 1/8" mild steel and we will be offering them for $39.95.

Air Ride
07-17-2007, 03:14 PM
Front shock mounts and windshield V supports.

Mustard Dog
07-17-2007, 08:08 PM
I want to see detailed pics of the lables on you tool box drawers, you know the one I'm talking aboot:laughing:

Air Ride
07-19-2007, 06:32 PM
Winch mounting plate

fj40forlife
07-19-2007, 06:45 PM
im liking this built alot.........

82toycrawler
07-29-2007, 08:17 PM
This thing is looking sweet. Keep the pics coming.

Arya Ebrahimi
07-29-2007, 09:01 PM
Is the winch plate 1/8" as well(looks like it since it's dimpled)?? Do you think that will be strong enough? or are you going to gusset it underneath? Lookin good!

D Rat
08-15-2007, 10:08 PM
Dont leave us hanging, more info and pics please.

Vortec_Cruiser
08-16-2007, 11:45 PM
Is the winch plate 1/8" as well(looks like it since it's dimpled)?? Do you think that will be strong enough? or are you going to gusset it underneath? Lookin good!

I was wondering the same thing. :)

desertoy
08-17-2007, 01:49 PM
Is that winch going to double as a radiator. Damn that thing's big.

Air Ride
08-19-2007, 08:48 AM
Is the winch plate 1/8" as well(looks like it since it's dimpled)?? Do you think that will be strong enough? or are you going to gusset it underneath? Lookin good!
It has a 1/8" channel gusset underneath.


That winch is a big one but it weighs less than a winch and compressor separate.

wngrog
08-20-2007, 09:15 PM
My 3RZ is a badass motor for a 4 banger, but I would dread hauling around 4 bodies with it.

Awesome build so far....

Air Ride
09-10-2007, 09:17 PM
Fire wall.

Air Ride
09-10-2007, 09:20 PM
Center cross member.

fj40forlife
10-02-2007, 01:49 AM
this is looking nice.........

MT4Runner
10-02-2007, 08:13 AM
Wow, Mike, really elegant work!

And I mean elegant in the engineering sense; not elegant in the feather boa and ....nevermind.

Vortec_Cruiser
10-16-2007, 11:07 PM
How about an update, Mike? :)

abrogate
10-16-2007, 11:24 PM
where/how is the exhaust going to pass through the x-member?

edit: never mind. i thought that was a flat belly, but it appears to retain the OEM t-case x-member. although, i noticed that one of the three holes on the pass. side is not flared. maybe thats the through hole?

Stealthrunner
10-17-2007, 04:08 AM
:smokin:Cool build Mike!!!!! exhaust looks like it will go through the center hole on the passenger side...

Vortec_Cruiser
11-04-2007, 11:03 PM
Any updates???

Vortec_Cruiser
11-16-2007, 12:56 AM
What springs are you using for this project? :)

M1
11-24-2007, 10:02 PM
Fire wall.

I think Im going to try and copy your fire wall design.:flipoff2: Looks awesome!

Air Ride
12-20-2007, 11:15 AM
What springs are you using for this project? :)
Marlin's 5"

Tin Bender
12-21-2007, 11:05 AM
Mike, I ain't no rockit Syintist but that sub frame looks a little deep:confused: Did BelVista help ya'll with It?...:flipoff2:

Mustard Dog
12-21-2007, 12:09 PM
Now that you're back on board Bender, when can we start seeing the pissing chops?:laughing:

Air Ride
12-21-2007, 05:37 PM
Mike, I ain't no rockit Syintist but that sub frame looks a little deep:confused: Did BelVista help ya'll with It?...:flipoff2:
That’s the way it has to be to get the proper number out of the 4 link calculator.

Mustard Dog
12-21-2007, 05:55 PM
That’s the way it has to be to get the proper number out of the 4 link calculator.


OMFG:laughing::laughing::laughing::laughing::laugh ing::laughing::laughing:

HOTTAMALE
12-22-2007, 01:33 PM
Looks sick dude :smokin:

Vortec_Cruiser
12-28-2007, 11:33 AM
Come on, Mike. I need some updates on this. Withdrawals are setting in... :D

Vortec_Cruiser
01-22-2008, 03:27 PM
I would sure like to see an update on this. :)

Air Ride
01-22-2008, 07:57 PM
Havnt had time to work on it much but here is some pics. Diamond axles front and rear of course. POS full hydro steering with Slee high steer arms. PRP pre-teen back seats for the kids.

Vortec_Cruiser
01-22-2008, 10:07 PM
Thanks for the crumb. :)

mtbrjon
01-23-2008, 06:17 AM
What's that housing width wms to wms? Have been talking to Brian about housings and this is a good shot of how the housing will fit with leaves. Is this rig gonna jump? Air bumps? Just curious.

Air Ride
01-23-2008, 10:19 AM
62" WMS to WMS
Air bumps and 2" fox remote reservoir shocks.

Toddy
01-23-2008, 10:56 AM
Where you getting the shaftsd for these housings? If Bobby Long how much more are they for custom length if any?

Toddy

Arya Ebrahimi
01-23-2008, 11:13 AM
Diamond Axle(Brian Ellinger) is the only guy who does custom length inners for Bobby. You'd have to chat with him on pricing.

mtbrjon
01-23-2008, 12:37 PM
62" WMS to WMS
Air bumps and 2" fox remote reservoir shocks.

Width added to the short side only?

Cool. Should fly nicely.

Brian Ellinger
01-23-2008, 04:01 PM
Id have to look up the build specs, it is FJ80 outers. So length was taken off the long, added to the short, to get the 9.5" center over to fit the leaf springs. If I recall, its matching stock 80 front width of 63.5".

ugly80
04-15-2008, 08:33 PM
updates?

Air Ride
05-03-2008, 11:57 AM
Got the springs and axle mounted. Working on shock mounts now.

dino1967
05-03-2008, 12:58 PM
that rig is going to be sweet!!
great job!!!

xjmania030
05-04-2008, 02:20 PM
nice bro. keep us updated.

Brian Ellinger
05-05-2008, 04:12 PM
Nice beadlock rings, OMF?

TheTonka
05-06-2008, 01:54 PM
Very nice. Makes me want to build a non-competition Formula Four.

Hvy_Chevy
05-08-2008, 08:56 AM
Digging the winch mount (I want to rebuild mine now that I finished it.)

nvrenuf
06-07-2008, 09:05 AM
Bump for updates please... :grinpimp:

nvrenuf
06-17-2008, 03:01 PM
bump again

nvrenuf
09-06-2008, 10:44 PM
New pics?

TheTonka
09-07-2008, 12:53 PM
Yeah how bout some updates?

Air Ride
10-23-2008, 09:06 PM
New fuel tank.

dukguy
10-24-2008, 12:14 AM
Hey Mike what do you think the wheelbase will be? I am thinkin about doin another ftoy and i am not sure if i want go with the ftoy 4 seater or the standard.

Did you answer the wheelbase question?

Air Ride
10-24-2008, 12:47 AM
The wheelbase right now is 118".

desertoy
10-24-2008, 08:53 AM
Mike, are you gong to put a sump on that fuel tank? If not, what are you going to use for a pickup?

Air Ride
10-24-2008, 10:18 AM
There is a hole in the center that drains into a gallon or so sump on the bottom. The baffles are arranged so any fuel in the tank is forced to the center every time the buggy changes attitude. Hopefully it will hold 20 or more gallons when done.

MT4Runner
10-24-2008, 02:12 PM
Awesome work on the fuel cell, Mike! :grinpimp:

Rear axle looks like an FJ80 full floater. Is the diff set to the driver's side? (swapped shafts?)

9.5" LC 3rd or Taco/tundra 3rd?

TheTonka
10-24-2008, 02:28 PM
Very nice. Makes me wonder how much it would be to just have you guys build me one. :D

Brian Ellinger
10-29-2008, 02:18 PM
Awesome work on the fuel cell, Mike! :grinpimp:

Rear axle looks like an FJ80 full floater. Is the diff set to the driver's side? (swapped shafts?)

9.5" LC 3rd or Taco/tundra 3rd?

9.5 3rd, stock length 80 shafts, swapped side to side to get the pinion a bit closer to center.

tunaboat
11-08-2008, 07:27 AM
What size tires do you plan to run?

Air Ride
11-08-2008, 09:49 AM
37" crawlers

toyjoeta
11-09-2008, 01:20 PM
Do you have any pics, of your inboard rear spring hangers? Are you still selling them? I can't find them on your site.

Thanks
Joe

Air Ride
11-14-2008, 06:42 PM
Fuel tank is in looks like it will hold 22 gallons.

Stealthrunner
12-08-2008, 03:36 AM
Nice work Mike looks Sweet!!!!!:smokin:

MT4Runner
12-08-2008, 08:52 AM
http://www.pirate4x4.com/forum/attachment.php?attachmentid=402890&stc=1&d=1226713330

Hey Mike, how well does that heat exchanger work above your heater??

Air Ride
12-08-2008, 10:32 AM
Hey Mike, how well does that heat exchanger work above your heater??
It works OK, the best part is it starts making heat a lot faster then the stove does.

minam44
12-08-2008, 06:30 PM
Are those your X-joints on those shackles? what are the measurements of them?

Jon

Air Ride
12-08-2008, 11:04 PM
Are those your X-joints on those shackles? what are the measurements of them?

Jon
Those are poly bushings on the shackles.
The X-joints are the standard 2-5/8 with a 9/16 bolt hole.

GOOBAWIGGA
02-09-2009, 10:11 AM
2 months?? any updates??

Air Ride
02-09-2009, 12:56 PM
Rear bump stops

Air Ride
02-09-2009, 01:02 PM
Interior aluminum work.

desertoy
02-09-2009, 02:36 PM
That looks nice Mike. Did you have to notch out the dash bar for the tilt steering?

Air Ride
02-09-2009, 02:44 PM
That looks nice Mike. Did you have to notch out the dash bar for the tilt steering?
I cut 4" out and welded it in, I hope warpage doesn't make it hard to adjust.

Heywood
02-09-2009, 03:58 PM
Wow 22gals fuel! and didnt take up any useable area, nice.

cruiserjg
02-28-2009, 08:56 AM
I like the axles. I jist picked up some fj 60 axles and have been looking a the dimonds. Did they provide the fj 80 nuckels and balls I have not been able to find a cheep 80 axle. Also how much stronger are the 9.5" compaired to the 8" diffs.

Thanks

nightcrawler
04-17-2009, 07:16 PM
Any updates Mike?

RockJeep92504
04-24-2009, 09:53 AM
When will this be done, so I can buy it.

2hi2c
04-24-2009, 01:01 PM
Nice clean build, good job. Gas tank sits nice and low.

Truggychev
05-04-2009, 06:33 PM
That fuel tank is sick as hell.

billybob13
05-16-2009, 08:24 PM
That fuel tank is sick as hell.

x a whole bunch. nice work.:smokin:

VasToyBoy
10-14-2009, 10:56 PM
any updates?

Air Ride
10-16-2009, 02:37 PM
Not much got done over the summer but we are back on it now. Will post pics soon.

yotee
10-23-2009, 12:01 PM
is it soon yet?

DRM
11-09-2009, 01:58 PM
Not much got done over the summer but we are back on it now. Will post pics soon.

:cool2:

Air Ride
11-17-2009, 11:43 PM
Did some front suspension cycling today to figure out shock placement and bump stop hight.

chvyhs
11-18-2009, 08:29 AM
What are you looking for when cycling the suspension? Are you measuring to get the shocks at a specific angle when compressed and extended?

Air Ride
11-18-2009, 09:29 AM
We are checking that the shocks don't bottom out or top out. Also checking where to put the bump stops so we don't hit the axle or steering linkage on anything when it bottoms out. We alway mount the shocks as close to the wheel as possible on the axle and lean the shock in enough that it wont go past 90 degrees to the axle at full articulation.

TheTonka
11-18-2009, 11:44 AM
This thing is so cool. I wonder if I could get the wife to agree to sell my CJ5 and her Rhino and build one of these. :D

desertoy
11-18-2009, 02:09 PM
That's why I didn't get my moch up leaf springs back :p. That's ok, you can keep em. I made another set :flipoff2:.

Air Ride
11-18-2009, 05:57 PM
That's why I didn't get my moch up leaf springs back :p. That's ok, you can keep em. I made another set :flipoff2:.
The custom KOH spring broke while we were flexing it.

montezuma
11-19-2009, 12:14 PM
After working with the slee steering, does it look at all like a draglink would be able to clear the leafs on the passenger side (assuming someone wanted to use this axle and do standard crossover steering)? I realize leaf set-ups are different from rig to rig, but how big of a deal would it be? A serious PITA?

Air Ride
11-19-2009, 12:55 PM
We are running the full hydraulic steering over the springs so I'm sure a drag link set up could be worked out.

montezuma
11-19-2009, 01:11 PM
We are running the full hydraulic steering over the springs so I'm sure a drag link set up could be worked out.

Perfect. Thank you.

VasToyBoy
08-19-2011, 02:05 AM
Did it die? I know. Old ass post. Just kinda curious how it turned out.

yotee
08-22-2011, 06:13 PM
Did it die? I know. Old ass post. Just kinda curious how it turned out.

same here

offroad_joe
08-23-2011, 05:46 AM
He's busy building a straw house.:laughing:

bluzuk80
08-23-2011, 11:12 AM
Just when I though I had the baddest 3RZ four seat ftoy I run across this beautiful piece of art. Great work:eek: