Steel City Racing: King of the Hammers 2019 Toyota 4Runner IFS 4600 Build Thread

[sprygsxr]

MAF Calibrator is in route as we speak. I spoke with Gadget at URD and he said he doesn't have a map for our V8 and we'll need to tune after installation.

So we bought a AEM (30-4110) UEGO Air/Fuel Ratio Gauge (also in route as we speak):
(https://www.amazon.com/gp/product/B00N3VGPYS/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1)

Gadget then said:
"The MAF Cal should be tuned out on the road. Shoot for 11:1 if you have cats and 11.5:1 or 12.0 if you really want to be aggressive if you don't have cats.

You can follow this guide: www.GadgetOnline.com/U-Tune.pdf

The MAF Cal is the fuel control half of the MAF/Timing Cal. Ignore all the stuff about timing.

If you need the software you can download it here:

www.GadgetOnline.com/setup2.zip"

Any suggestions on getting it calibrated correctly? One of my long time friends is an engine guru, so he'll be doing it for us.

That looks like a waste of time to me. Might work well on the V6 platform but you can remap your factory ECU much easier than that. I would contact Frank Smith at TTFS tuning and see if there is someone near you that can handle this.

Performance Engine Tuning and Dyno Facility | Tuning Tech FS

 

[Charles4x4]

That looks like a waste of time to me. Might work well on the V6 platform but you can remap your factory ECU much easier than that. I would contact Frank Smith at TTFS tuning and see if there is someone near you that can handle this.

Performance Engine Tuning and Dyno Facility | Tuning Tech FS

Gadget knows his stuff.

 

[sprygsxr]

Gadget knows his stuff.

I dont doubt it. I guess I was lucky to be local to TTFS so they could put me up on the dyno and tune with air/fuel real time. Truck felt totally different when I left.

 

[Charles4x4]

I dont doubt it. I guess I was lucky to be local to TTFS so they could put me up on the dyno and tune with air/fuel real time. Truck felt totally different when I left.

I bet. I'd love to - convince TTFS to sponsor us! Or find someone with a dyno near me and we'll drive it over!

Otherwise we're tuning while driving using gadget's software, our AEM air/fuel gauges, and a laptop for now.

 

[SAC-CA-Runner]

I bet. I'd love to - convince TTFS to sponsor us! Or find someone with a dyno near me and we'll drive it over!

Otherwise we're tuning while driving using gadget's software, our AEM air/fuel gauges, and a laptop for now.

Would really be curious to see what you come up with in terms of power should you get it dynoed. I'm running stock airbox with AFE drop in as I wanted the snorkel to hook up right to the box. But have DT headers, high flow main cats, rear cat delete, custom Y and custom exhaust with high flow Magnaflow. Been thinking about the URD MAF Calibrator. If there is hard data I'd bite. Curious as to how the fuel pump will help as well. As with anything, those can go with age as well but haven't heard of issues. Definitely will be following on IG.

 

[Charles4x4]

Would really be curious to see what you come up with in terms of power should you get it dynoed. I'm running stock airbox with AFE drop in as I wanted the snorkel to hook up right to the box. But have DT headers, high flow main cats, rear cat delete, custom Y and custom exhaust with high flow Magnaflow. Been thinking about the URD MAF Calibrator. If there is hard data I'd bite. Curious as to how the fuel pump will help as well. As with anything, those can go with age as well but haven't heard of issues. Definitely will be following on IG.

Thanks. Sounds like a strong setup. URD stuff just arrived - just have to find time to get out there!

Fuel pump was a must as we are swapping to a fuel cell in the cargo area, so we might as well go with a high performance one.

Thanks for following us on IG and FB.

 

[Keros]

Thanks. Sounds like a strong setup. URD stuff just arrived - just have to find time to get out there!

Fuel pump was a must as we are swapping to a fuel cell in the cargo area, so we might as well go with a high performance one.

Thanks for following us on IG and FB.

Hey Charles,

Thanks for posting up about your build, I look forward to seeing where it goes.

I'm also super pumped to see your dyno numbers with your configuration; as that it's very similar to my setup.. see if it's worth it for the MAF tuner; I've been holding off on tuning in anticipation of just getting the URD s/c kit.

Can you reveal plans for suspension/chassis work you've got in store?

Best regards,

-Don

 

[Ida4runner]

What are your plans for axles and drivetrain? how will you gear this low enough?
Cool build!

 

[4RunnerAquasport]

Thanks for thread!!

^^ x2 on the rear axle question. Definitely not racing mine but still looking at that weakness.

Subscribed to fb and this thread. Upgrading my 03' a little bit and will be following closely.

 

[Charles4x4]

What are your plans for axles and drivetrain? how will you gear this low enough?
Cool build!

As you probably know, KOH is unique. You have to have gearing high enough to do 70-100mph in the Desert and low enough to crawl, bounce, or drag yourself through the Hammers.

We'll have a Currie RockJock 60 with ARB in the rear with an Atlas II. Gears will be 4.56 - we'll explain why later in the build.

Hint: We're retaining ABS so we can keep ATRAC and adding an ARB in the front only to be used in worst case scenarios. The front is going to be complex - we need strength while fitting the 4600 rules. And RCVs will be involved. I've probably given away too much .

 

[Charles4x4]

^^ x2 on the rear axle question. Definitely not racing mine but still looking at that weakness.

Subscribed to fb and this thread. Upgrading my 03' a little bit and will be following closely.

Awesome - thanks for following us. Hit us up on IG if you use that too.

 

[4RunnerAquasport]

Never been on there, but actually thinking about IG just for this reason lol.
I also shared your page on our Florida 4runner page. You should join, I'm sure the gang would be glad to have you!!
https://www.facebook.com/groups/727757883992435/729344047167152/?notif_t=group_activity

 

[Charles4x4]

Never been on there, but actually thinking about IG just for this reason lol.
I also shared your page on our Florida 4runner page. You should join, I'm sure the gang would be glad to have you!!
https://www.facebook.com/groups/727757883992435/729344047167152/?notif_t=group_activity

Awesome, thanks for following us. And the FL 4Runner FB group looks awesome! Thanks for the link.

 

[zidaro]

Nice!!!! Stoked your going this direction, what a fun build!! and - destination KOH!!!! Even more fun.

Will follow along intensely. I have my 08V8 and have intentions of heading this way- life will require me to go a bit slower than your pace, but it is "the end product" and possibly competition, but moreso capable go everywhere fast vehicle. Right now its good at mobbing around in the desert. Have a 1st gen for the rocks for now.

What is your KOH or crawling background? Ever been out West to play? Whats your budget and "racing plan"? It gets expensive quick.

What are your rear suspension plans? 4WU? i have a helluva connection for you

When your ready to come play in the rocks, hit me up! I will spot, co-dog, pit, or just drink cocktails and roust you thru the trails!! Know the areas (somewhat)
And im a paramedic, so that comes in handy sometimes

Aaron

 

[Charles4x4]

Nice!!!! Stoked your going this direction, what a fun build!! and - destination KOH!!!! Even more fun.

Will follow along intensely. I have my 08V8 and have intentions of heading this way- life will require me to go a bit slower than your pace, but it is "the end product" and possibly competition, but moreso capable go everywhere fast vehicle. Right now its good at mobbing around in the desert. Have a 1st gen for the rocks for now.

What is your KOH or crawling background? Ever been out West to play? Whats your budget and "racing plan"? It gets expensive quick.

What are your rear suspension plans? 4WU? i have a helluva connection for you

When your ready to come play in the rocks, hit me up! I will spot, co-dog, pit, or just drink cocktails and roust you thru the trails!! Know the areas (somewhat)
And im a paramedic, so that comes in handy sometimes

Aaron

Aaron, thanks for the amazing post. My DD is a 1st gen Turbo!

Rear suspension will be done by Wyatt at Rock Solid Toys - Wyatt has been an amazing sponsor of this build and friend.

The rear Currie RockJock 60 is ordered! Stay tuned for more details from Wyatt on the rear setup.

And - as a side note - I love Brian, but 4WU doesn't currently make any products for the 4th gen. Believe me, I asked

My co-driver is a Fireman and Paramedic - you have to meet him at KOH in Feb! You two will hit it off. And we'll definitely need your help out on the lakebed!

Right now we're still working on sponsors for tires, wheels, armor, batteries, safety gear, vehicle wrap, and comms. And also trying to finalize details with a few "locked-in" sponsors.

Follow us on FB and IG and give our sponsors a shout. And ping us with ideas.

 

[Ida4runner]

As you probably know, KOH is unique. You have to have gearing high enough to do 70-100mph in the Desert and low enough to crawl, bounce, or drag yourself through the Hammers.

We'll have a Currie RockJock 60 with ARB in the rear with an Atlas II. Gears will be 4.56 - we'll explain why later in the build.

Hint: We're retaining ABS so we can keep ATRAC and adding an ARB in the front only to be used in worst case scenarios. The front is going to be complex - we need strength while fitting the 4600 rules. And RCVs will be involved. I've probably given away too much .

Ah,you are really serious! great! can't wait to see this build.Any chance of seeing a solid front axle?

 

[Charles4x4]

Ah,you are really serious! great! can't wait to see this build.Any chance of seeing a solid front axle?

Yes, it's serious! No solid axle - it would be a disadvantage for this build and it wouldn't be permitted in the rules anyway. We specifically chose the 4th gen 4runner so we could run Long Travel IFS with Coilovers in the front within the rules.

We're essentially taking 4400 Unlimited Main Race class technology (not quite, but close) and bringing it to the 4600 Stock EMC Class! It has never been done before - it's going to be awesome! Solid Axles are quickly becoming Old School, endangered technology in the Unlimited Class - it's been mostly dominated by IFS the past few years (with quality exceptions like Randy Slawson and Erik Miller of course).

With this build, we'll be the first to try New School tech in the EMC, which has been dominated by Solid Axles thus far. That, among other things, is what is getting my sponsors so excited.

Check out my summary of the 4600 Stock Class rules - I think it's the 3rd or 4th post of this thread.

 

[Inv4drZm]

Yes, it's serious! No solid axle - it would be a disadvantage for this build and it wouldn't be permitted in the rules anyway. We specifically chose the 4th gen 4runner so we could run Long Travel IFS with Coilovers in the front within the rules.

We're essentially taking 4400 Unlimited Main Race class technology (not quite, but close) and bringing it to the 4600 Stock EMC Class! It has never been done before - it's going to be awesome! Solid Axles are quickly becoming Old School, endangered technology in the Unlimited Class - it's been mostly dominated by IFS the past few years (with quality exceptions like Randy Slawson and Erik Miller of course).

With this build, we'll be the first to try New School tech in the EMC, which has been dominated by Solid Axles thus far. That, among other things, is what is getting my sponsors so excited.

Check out my summary of the 4600 Stock Class rules - I think it's the 3rd or 4th post of this thread.

IFS! IFS! IFS!

I'm sure Wyatt knows what he's doing, but in my mind the rear needs to be double-triangulated 4-link since you are removing the stock fuel tank.

I will be watching the KOH race this year for sure.

 

[zidaro]

Well, looks like your getting lots of play on all the other forums too!! As well as the standard beating on Pirate!! It used to be really rough in the old days, now its even tame there

Pretty damn sure RST will pull thru, they are putting out some top shelf builds for the Toyota crowd lately.cant wait to see her all stripped down!!

To me- It all comes down to the front end!

Long travel with coilovers naturally! Id run 3.0 coils if it were me.
LSK and Solomotorsports make some wildly impressive kits built for racing

That IFS front carrier, standard Toyota 8"? sticking with an OEM Toyota version or going to do it right?
Id love to see a ProRock60IFS slipped under our Runner. Center Mounted of course
OR----- an IFS housing mated to a Toyota 10.5 that would be F'ing the Bomb!!

RCV IFS Yota axles do not have a popular following. There have been countless issues reported on vehicles running them with most guys even swapping back to OEM toyota CVs or OEM rebuilds by CVJ with chromo inners. (thats what im running now after easily popping my CVs with a front locker) Most reports are on FJCruisers.com and tacomaworld.com
SoloMotorsports even swaps out the Yota CVs for Dana's

Then theres that Toyota steering rack! replace that mofo!

Cant wait to see what you guys come up wither and how it survives getting used.

Document it all!!!! Pics and specs

 

[Charles4x4]

IFS! IFS! IFS!

I'm sure Wyatt knows what he's doing, but in my mind the rear needs to be double-triangulated 4-link since you are removing the stock fuel tank.

I will be watching the KOH race this year for sure.

Exactly! Either double or single triangulated.