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99 ext cab ec4wda racer - SHO swap


14TR

Well-Known Member
Law Enforcement
Joined
Nov 28, 2023
Messages
80
City
Pennsylvania
Vehicle Year
1988
Transmission
Manual
Hello all,
I have a thread on the engine swap sub forum but I thought this might be a better spot to cover the build, since the engine swap is only a small portion of the build.

I’ve been on and off involved in short course off road racing for 15 years through the EC4WDA. It’s basically similar to tuff truck style courses but “smoother”, not designed to break your rig. There’s also 100yard dirt drags, hill climbs, and figure 8’s. The vast majority of racers are Jeep based vehicles, though you do see all sorts of rigs out there.

I had plans for over a decade to build a bronco 2 or ranger with a 2.3 turbo as at the time the point factor for a turbo wasn’t as heavy as it became in later years due to rule changes.

in March of 2024 I decided to look for a good candidate ranger for the build. Only concerns I had were it had to be 4wd and have a solid frame. I ended up finding a 1999 ext cab step side, 3.0, auto. It was only 90 minutes from my house and, while it didn’t run, it had a pretty decent frame and was only $500.

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Once I got it home I confirmed the fuel pump was dead and quickly replaced it with an eBay special for $20. That got the truck running and mobile which is all I needed.
Next step was stripping the interior, which I was only too happy to do since mice had been living in there and peeing on everything for god knows how long.

The safety requirements per the rule book are the removal of all the glass, a proper roll cage, driveshaft loops, 5 point harness, helmet, extinguisher, and master battery/kill switch at the rear of the vehicle.
I started pricing out roll cages from the various manufacturers but quickly found out the $600 cage would need the ext cab upgrade, the A pillar to front frame etc. add in the freight charges and the $600 cage was looking more like a $1500 cage.

That prompted me to look into making my own cage. I discussed it with one of my buddies who has been racing for 40 years with the organization and he has always made his own, though he uses one of the Harbor Freight tubing “kinkers” and I was predicting plenty of wasted DOM in my future. I found dxf files for a manual bender similar to a JD Squared style bender. I tweaked the files slightly to work with the Grizzly brand dies since they are more affordable than the JD ones. Once I cut all the parts cut on the plasma table, I assembled it and mounted it to the garage floor.
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Two bends. That’s how many I got done before I realized this was not going to work. The DOM wasn’t anything crazy. 1 5/8” .120 wall, but something seemed to be off as it was taking a 4 foot cheater bar to make the bends and even then it took everything I had. My guess is the placement of the holes on the fulcrum part of the bender was giving me a bad ratio. Something had to have gotten screwed up when I was rescaling and modifying the files is my guess. I was discussing it with another friend of mine who owns a body shop and towing company. He went in the back and came out with a 120 volt hydraulic pump. He said he wasn’t sure if it worked, but it was mine if I wanted it. This was a huge score because aside from hydraulics making the bends obviously much easier, the idea of the bender mounted on a rolling cart was far better than having to bolt it to the concrete anchors in the middle of my shop every time I wanted to use it!

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What a world of difference this bender made! I got to work on the main hoop and only slightly screwed it up (the degree wheel wasn’t mounted properly and was moving during the bend! That was corrected by the time I got around to the A pillars). I knew I wanted to have some wiggle room from my body to the cage, but I also didn’t want to cut into the roof structure of the cab because it offers some protection on its own, and didn’t just want a tuna can lid flopping in the breeze.
 
I got the main structure of the cage in and tacked. I opted to buy a cheap tube notched on eBay. Vevor brand. $50. Not the most rigid thing, but I am impressed with the clean notches and works amazing for the price. Just buy a good quality hole saw. Next I had decided to pull the bed as it wasn’t in great shape and having it removed afforded access to the tank to removed easier for a fuel cell to go in the back instead, access to a busted brake line on the rear, and access for the bed bars that would tie the frame near the rear shackles to the main hoop of the cage. Of course the torx bolts holding the bed just spun with the nut clips, necessitating the heads needing to be cut and chiseled off. Once the bed was off though (that bitch is heavy moving alone!) the fiberglass bed sides came off quite easily. These will be remounted with some simple brackets to give the rear a better aesthetic. I’m not a fan of seeing pickups with no bed at all


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Remember how I said I originally wanted a 2.3 turbo/speed swap? Well the rule changes over the years would still allow it, but it would be several classes higher than originally intended. Could it still be competitive as far as power? Absolutely. But the higher classes usually are smaller so less actual racing, plus faster racers usually means you need more suspension etc and then the budget goes out the window! Enter the 3.0 SHO engine. The often sought after swap that almost never seems to come to fruition! Well I like my chances, because this being a race vehicle and all, I’m not restricted to needing heat or AC. Flip the intake? Nope! Cut a hole in the firewall and have throttle body under the sheet metal dash! Exhaust hitting the steering shaft? Ehhh, that might be an issue. But I think I could move the shaft easier than I could make a custom header. IMG_4513.jpegIMG_4515.jpegIMG_4516.jpeg

so this is the plan at the moment. I’ll also link a video from my YouTube channel that takes us up to this point. I’ll update as progress is made and I’m hoping to make a Labor Day weekend race (with the current 3.0 mind you)


 
Only got a few hours in the garage this week but got the seat mounted, only to find out it was just too high. With my helmet on it was higher than the A pillar, and nearly as high as the main hoop. So I had to come up with some brackets to adjust height and tilt. Also decided to cut into the trans tunnel slightly so that I could move the seat bracket more inboard. It was previously centered to the steering wheel, which makes sense, but my left shoulder was flush with the cage. I still will add a diagonal door bar that will hug the door more and give more side protection, but I want the entire A pillar to protect from side impact too, not just the door and door bar. So moving the seat inboard helps quite a bit. Only drawback is the steering wheel is about two inches to the left, but it still feels fairly natural when belted in.

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Was hoping to have the cage completed this week since the next race is Labor Day weekend and I have other stuff to still get done including wiring, moving the battery to the back, fuel cell install, and dash fabrication. I may stick with the stock fuel tank for this race to keep the checklist a little shorter
 
Got the outriggers for the cage made up today and welded in. They got a little boogery once I fully welded them under the truck. Not to make excuses because I’m definitely Not a pro welder, but I think I need a better helmet. I can see crap!
 

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Got the outriggers for the cage made up today and welded in. They got a little boogery once I fully welded them under the truck. Not to make excuses because I’m definitely Not a pro welder, but I think I need a better helmet. I can see crap!
If you have some 500 watt halogens use them to light up your weld area. Other thing to try is using a lighter shade of lens. The helmet is UV protected regardless of what shade you use, so use just dark enough and no more.
 
Part 2 is up. A little all over the place but it’s something haha

 
See my other thread for some small updates

 
Had a few hours in the garage last night. Was able to yank the Vulcan out. What a pain! Fairly straightforward but I had a hell of a time with the two 15mm bolts that run from the block back into the bell housing for some reason they seemed corroded in while all the other bell housing bolts came out reasonably easy. Plus the driver side one permits very little access even with the starter out and the exhaust crossover out of the way. So trying to apply a lot of torque in such a confined space was nearly impossible, but it eventually broke loose.

I had contemplated drilling out the spot welds for the core support as that would also facilitate mocking of the SHO engine easier since I’m sure it’ll have to go in and out a few times. But at this point I feel I should be ok leaving it in.
 

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I have a design made up for the 4R44E controller I’m going to use. It utilizes an arduino and relay board to be able to sequentially shift the solenoids that control the trans from the factory. I’ll have to design or rob a paddle shift type setup from another vehicle, but while I was going over the schematics, I had a crazy thought. I will eventually be using a Megasquirt to run the engine, but initially I’ll be using the ECU out of the 3.2 SHO parts car I bought, and I don’t see why I can’t attempt to have the ECU shift the ranger trans as all the wiring is essentially the same. I’m not sure on the shift tuning utilized in the stock EEC for the 93 SHO, but I might give it a shot. If it doesn’t work I have the standalone “manual” controller I designed.
 
Not a lot new this week after getting that last video up, but I did powder coat one of the valve covers as a test for what I wanna do color scheme wise for the engine. Didn’t turn out perfect, but I can live with it
 

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Looks pretty dam good from where I am...
Thanks. It looks a little better in the pics. Coverage is thin in spots in reality. Not my first time powder coating but it is my first time with this color. They claim it’s single stage, doesn’t need a base, etc. but idk. I laid it on pretty heavy and it still looks thin here and there. The nice thing is it will be totally unnoticeable on the engine and under the intake, but it still irks me lol
 
Didn’t make the race at last weekend, but did attend just to spectate. I have two more races to aim for. The last weekend in August, and the middle of September. With any luck these should be doable. Here’s a little update
 

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