Build Tacoma 4500 build

Well I hate to admit it but it’s not going to be done for koh 2026. Shifting to focus on making the ultra4 moab race on April rather there’s just to much to do in a short amount of time and with the extremely high entry fee for koh 2026, it’s not worth showing up untested and never driven the car. Plus I think it’s going to go faster than I know how to drive.

thats the correct decision
 
Few more of the exhaust. I feel my tig is getting better.
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Swirl the tungsten as you come off the pedal and you'll get rid of the fisheyes. I do my last dab and then come right off the pedal. I avoided the pulse settings for a long time too, but it really does help with that robotic dime stack.
 
Well I hate to admit it but it’s not going to be done for koh 2026. Shifting to focus on making the ultra4 moab race on April rather there’s just to much to do in a short amount of time and with the extremely high entry fee for koh 2026, it’s not worth showing up untested and never driven the car. Plus I think it’s going to go faster than I know how to drive.

Good call!!! Getting the bugs out of both the car and you program at a season race is the way to go.
 
Swirl the tungsten as you come off the pedal and you'll get rid of the fisheyes. I do my last dab and then come right off the pedal. I avoided the pulse settings for a long time too, but it really does help with that robotic dime stack.
This machine (miller diversion 180) is super basic. So no pulse setting or post flow adjustment. Just switch between dc and ac and amperage. Which makes it easy to learn on and more than enough for me.

I’ll try the swirl. Wasn’t sure what caused the fisheyes as sometimes I got them and sometimes I didn’t.
 
Parents back for another couple days to help. My dad took the exhaust and wrapped them. My mom and wife wrapped the headers and helped put some more heat shield stuff on panels.

With both making koh to race my dad went to town redoing the rear. Looks good with the tire and hoop to finish it off. We got a ton of other stuff done. Fuel line vent, started bleeding brakes. Breathers. Hose heat shields. And more I’m sure. And then we got the hood mounted. Tomorrow will work on the fenders and then body mounts.

Still pushing to take it to koh.
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Looks like the lights in that toolbox wont be doing much anymore with the tire way up there. Gonna relocated them into the tubework below the spare?
Yeah they’ll get moved. Either use a chase light above the radiator or just make a mount for them above the radiator. Is low on the list though as those aren’t needed to drive it.
 
It lives. My dad shaped the front fenders and will take them home to add some more fiberglass. My mom and I finished some heat shielding which proved to be very effective. The panels barely get warm now. We bled the brakes again. Some templates to mount the body to the cage. Hooked up the shifter. And lots more.

Drove out the garage for the first time which was cool. Still need to bleed the brakes again as they’re a little soft and mess with the idle to adjust the apr. And I think I have an air bubble in the cooling system as it gets warm and only half the radiator is hot while the other half is still cold.
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When are you planning to be out on the lake bed? Any plans for shock tuning before your race?
 
When are you planning to be out on the lake bed? Any plans for shock tuning before your race?
My days off at work changed but I’m hoping Wednesday to the following Tuesday. With not racing koh this year shocks probably won’t be tuned. Talked to the guy I’m going to use for shock tuning and he said come get the scales to weigh it to order springs so I’m trying to grab them tomorrow. After koh I’ll work with him to get the shocks tuned before moab.
 
My days off at work changed but I’m hoping Wednesday to the following Tuesday. With not racing koh this year shocks probably won’t be tuned. Talked to the guy I’m going to use for shock tuning and he said come get the scales to weigh it to order springs so I’m trying to grab them tomorrow. After koh I’ll work with him to get the shocks tuned before moab.

corner scales are not the proper way to select spring rates
 
corner scales are not the proper way to select spring rates
No reason you cant use scales... Get the full weight and unsprung weight in order to calculate sprung weight. Then do some math with the shock angles to calculate any leverage and youll have your spring weight.

I prefer to use scales/math and confirm it with springs of known weight. I find it more accurate than measuring how much a springs compress.
 
corner scales are not the proper way to select spring rates
I have no idea how to calculate so if you’d like to offer help I’m all ears. Shock tuner said to weigh it and get him the weights and he’ll help figure out the spring rate needed.
 
Alright Malburg114 time to get the robes, candles and a virgin goat
I think he’d prefer if I just guess and order 800 dollars worth and springs and then be wrong and then order another 800 bucks worth till I get it right. Robes candles and goat would probably produce a better spring order than I could do guessing as I have no idea what it weighs or how to chose
No reason you cant use scales... Get the full weight and unsprung weight in order to calculate sprung weight. Then do some math with the shock angles to calculate any leverage and youll have your spring weight.

I prefer to use scales/math and confirm it with springs of known weight. I find it more accurate than measuring how much a springs compress.

Thanks for the help. I’m sure I’ll be sending you a pm with questions later on if I need help.
 
No reason you cant use scales... Get the full weight and unsprung weight in order to calculate sprung weight. Then do some math with the shock angles to calculate any leverage and youll have your spring weight.

I prefer to use scales/math and confirm it with springs of known weight. I find it more accurate than measuring how much a springs compress.

in my experience all the people who do it with the scales with deducting weights and angles dont get it right.

I have no idea how to calculate so if you’d like to offer help I’m all ears. Shock tuner said to weigh it and get him the weights and he’ll help figure out the spring rate needed.

find some used springs, put them on the rig, slide adjuster nuts down to set ride height (make sure tcase is in neutral), measure collapsed height, do math, figure out how much weight the spring is going to support, do some math about shock shaft showing, preload and then pick your spring rates.

i even made a spreadsheet for it


I think he’d prefer if I just guess and order 800 dollars worth and springs and then be wrong and then order another 800 bucks worth till I get it right. Robes candles and goat would probably produce a better spring order than I could do guessing as I have no idea what it weighs or how to chose

just keep an eye out for 16"x200/300 springs selling on the internet. i know that doesnt help you right now, but if you shock guy is bringing scales over, he should have a pile of springs to do what i am talking about.
 
in my experience all the people who do it with the scales with deducting weights and angles dont get it right.



find some used springs, put them on the rig, slide adjuster nuts down to set ride height (make sure tcase is in neutral), measure collapsed height, do math, figure out how much weight the spring is going to support, do some math about shock shaft showing, preload and then pick your spring rates.
I agree with this. Putting test springs on and measuring the compression is much more accurate than scaling and using an educated guess on angles and unsprung weight. At least in my experience. I'm sure either your tuner or someone on the marketplace has a bunch of springs lying around.
 
Only a little bit of time today. Got it weighed. Tuner let me borrow his scales so I didn’t have to haul the car around. It’s way more balanced than I thought and I’m pretty happy. I put weight where I thought it was needed to mimick what I’ll carry. And then got the bungs welded on the air tanks.

Minus the dash and a few small brackets I think that’s super close to weight. One is with me and a passenger. And the other is without us in it. And about 10-12 gallons of gas out of the 32

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Lookin sick! I'm gonna have to get my agent to black out a weekend again for me so I can get some welding done on mine. Doing two welds a night is not going to be sustainable.
 
Welded the body to the cage. Only have one more to do between the upper a pillar but waiting to pull the windshield. Made a quick mount for the air tank. Got the lower springs already and hopefully upper springs show up tomorrow. Chased down an issue where on startup the truck would go straight to rev limiter. After half a day of trial and error found I never put two of the throttle body bolts that go into the intake back in after messing with the throttle cable (originally was using the motion raceworks throttle cable bracket). It had shifted allowing essentially a massive vacuum leak.

Still chasing an air bubble in the cooling system
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