1971 f250 DESERT truck- 10/24 race prep
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Re: 1971 f250 DESERT truck- RACE time!
Robroy, I am enrolled in Sac-state... Starting in a few months. Still not sure where exactly i want to do afterwards though.
Got to Yerington NV Friday afternoon. Took the truck out on the course on this 2 mile section just to make sure there isn't anything immediately wrong. Noticed right away that it seems the valving is too light, spent a lot of time near the bump stops. Didn't have time to re-valve. It was also bottoming hard, like metal to metal. We got back to pits and found that the passenger side bump stop was completely gone. So my dad went to buy another at the little parts store in this little town and the guy there didn't have one so he calls a buddy. His buddy had a trailer made out of the back of an old ford so my dad went over there and grabbed the bumpstop off.
Pulled the reinforcement plate off the frame (ground out the rivets), welded the bumpstop on, and welded the plate back on.
Swapped the jets out for higher elevation as well, and added a piece of fuel line to the stem deal on the carb so when the fuel gets bounced it doesn't go right back into the carb flooding it.
Wake up race day and it's snowing hard. Remember, i have a windshield, but no wipers.
They delay the start for 30 minutes. The snow stops and weather reports say it should clear up.
I am 2nd off the line in sportsman (sportsman is last out of all the classes) out of something like 10 sportsman cars.
There are 6 laps in the race, that come out to 300 miles total. But in the middle of the course is a "short-cut" bypassing half the course. You have to take 3 long laps and 3 short laps. long laps were 57 miles, and the short laps took off I think 16 miles of the course, but the shortcut was 3 miles long.
We decided to do 3 long 3 short. So if we get really tired near the end we know there are only short laps left.
First long lap goes nicely. I cruised over the "stadium jump" not wanting to hurt the truck and then theres Curtis filming for DP9. Darn. The first 7 miles are whoops and rough stuff that's just brutal. Last 7 miles are through a canyon which is also rough. In between there is a lot of high speed sections. We went just over 75 MPH. Could have gone much more but didn't want to risk it, i wanted to finish.
In the rough sections I had to go about 15 MPH. Why? The rear suspension was STILL not drooping AT ALL. So In all the whoops, i had to crawl over them. If i hit them going fast at all the rear would start packing up fast and start bucking, then if i let off the gas it would just buck worse, sending the rear tires 4 feet in the air. I bet I would of been able to get up to a pretty decent speed in the whoops if the rear was drooping.
2nd long lap... I get to the stadium jump and hit the gas thinking Curtis was still there filming and so i launched the truck... while airborn i could see that curtis was no longer there, darn... I want to be in DP9.
Then, on the other side of the course, I come to the section that parallels the road for a long ways. This section the truck is a beast in. I could cruise through it at about 50+ and it is not smooth... It's the perfect match for the truck.
Right as i come down the mountain and to the 90degree sharp turn that starts the parallel road section, I see curtis... and pin it of course. The truck destroyed the parallel road section...
Did 2 long laps... pulled into pits and pulled the rear spare off to help keep from bottoming.
Also realized that the spring plates that i just put on before the race were hitting the rivets that hold the bump stop plates on, so half the time we were bottoming out short, metal to metal, not rubber bump to axle.
After the 3 long laps we did a short lap. 3/4 the way around the lap I noticed a banging. Got out and found the front support on the passenger bedside ripped off the main hoop. Kept going...
A couple miles later I notice the drivers side bedside is dragging on the ground. The rear reinforcement that I gusseted all over the place ripped apart. It ripped a big hole in the bumper and sheared the 1.5" tube gusset straight in half.
Pulled the bedside off, and straped it to the bedcage, limped to main pit... thinking i needed brake lights to race.
I notice tranny fluid all over the ground and wheel well area and see the driver side cooler is soaked. Great... last thing i want to do is hurt the built tranny. I fired the truck up to see where exactly it was leaking out of the cooler and notice that the power steering line has a hole and is hosing the cooler down. Cool, that's easy, dad shortened the line and we're good to go.
Then my dad spots the u-bolt plates are literally about to fall off. the leafs were all crooked and the ubolts were falling out. Tightened them up. Back on the course.
Get to start/finish and ask about brake lights... apparently you don't need them. Also found out that i wouldn't make it in time to do two more short laps before cut-off so we called it quits.
We passed (not counting broken down cars) a few people, a UTV (which used to blow right by us), a 9 car (the 9 cars kicked my ass in the whoops like all others), a hummer or two, a class 5, and not sure what else. Didn't pass much, I think once the rearend is dialed we will be hauling much more mail!
So, the reason we couldn't finish is because the rearend not drooping (slowing us way down) and the bedsides falling off (thinking i needed brake lights and limping the 2nd bedside back strapped to the bedcage).
Bump stop repairs
snow! Rain-x did pretty good
Not the fastest we went but not bad
What a mess..
After several hours
Got to Yerington NV Friday afternoon. Took the truck out on the course on this 2 mile section just to make sure there isn't anything immediately wrong. Noticed right away that it seems the valving is too light, spent a lot of time near the bump stops. Didn't have time to re-valve. It was also bottoming hard, like metal to metal. We got back to pits and found that the passenger side bump stop was completely gone. So my dad went to buy another at the little parts store in this little town and the guy there didn't have one so he calls a buddy. His buddy had a trailer made out of the back of an old ford so my dad went over there and grabbed the bumpstop off.
Pulled the reinforcement plate off the frame (ground out the rivets), welded the bumpstop on, and welded the plate back on.
Swapped the jets out for higher elevation as well, and added a piece of fuel line to the stem deal on the carb so when the fuel gets bounced it doesn't go right back into the carb flooding it.
Wake up race day and it's snowing hard. Remember, i have a windshield, but no wipers.
They delay the start for 30 minutes. The snow stops and weather reports say it should clear up.
I am 2nd off the line in sportsman (sportsman is last out of all the classes) out of something like 10 sportsman cars.
There are 6 laps in the race, that come out to 300 miles total. But in the middle of the course is a "short-cut" bypassing half the course. You have to take 3 long laps and 3 short laps. long laps were 57 miles, and the short laps took off I think 16 miles of the course, but the shortcut was 3 miles long.
We decided to do 3 long 3 short. So if we get really tired near the end we know there are only short laps left.
First long lap goes nicely. I cruised over the "stadium jump" not wanting to hurt the truck and then theres Curtis filming for DP9. Darn. The first 7 miles are whoops and rough stuff that's just brutal. Last 7 miles are through a canyon which is also rough. In between there is a lot of high speed sections. We went just over 75 MPH. Could have gone much more but didn't want to risk it, i wanted to finish.
In the rough sections I had to go about 15 MPH. Why? The rear suspension was STILL not drooping AT ALL. So In all the whoops, i had to crawl over them. If i hit them going fast at all the rear would start packing up fast and start bucking, then if i let off the gas it would just buck worse, sending the rear tires 4 feet in the air. I bet I would of been able to get up to a pretty decent speed in the whoops if the rear was drooping.
2nd long lap... I get to the stadium jump and hit the gas thinking Curtis was still there filming and so i launched the truck... while airborn i could see that curtis was no longer there, darn... I want to be in DP9.
Then, on the other side of the course, I come to the section that parallels the road for a long ways. This section the truck is a beast in. I could cruise through it at about 50+ and it is not smooth... It's the perfect match for the truck.
Right as i come down the mountain and to the 90degree sharp turn that starts the parallel road section, I see curtis... and pin it of course. The truck destroyed the parallel road section...
Did 2 long laps... pulled into pits and pulled the rear spare off to help keep from bottoming.
Also realized that the spring plates that i just put on before the race were hitting the rivets that hold the bump stop plates on, so half the time we were bottoming out short, metal to metal, not rubber bump to axle.
After the 3 long laps we did a short lap. 3/4 the way around the lap I noticed a banging. Got out and found the front support on the passenger bedside ripped off the main hoop. Kept going...
A couple miles later I notice the drivers side bedside is dragging on the ground. The rear reinforcement that I gusseted all over the place ripped apart. It ripped a big hole in the bumper and sheared the 1.5" tube gusset straight in half.
Pulled the bedside off, and straped it to the bedcage, limped to main pit... thinking i needed brake lights to race.
I notice tranny fluid all over the ground and wheel well area and see the driver side cooler is soaked. Great... last thing i want to do is hurt the built tranny. I fired the truck up to see where exactly it was leaking out of the cooler and notice that the power steering line has a hole and is hosing the cooler down. Cool, that's easy, dad shortened the line and we're good to go.
Then my dad spots the u-bolt plates are literally about to fall off. the leafs were all crooked and the ubolts were falling out. Tightened them up. Back on the course.
Get to start/finish and ask about brake lights... apparently you don't need them. Also found out that i wouldn't make it in time to do two more short laps before cut-off so we called it quits.
We passed (not counting broken down cars) a few people, a UTV (which used to blow right by us), a 9 car (the 9 cars kicked my ass in the whoops like all others), a hummer or two, a class 5, and not sure what else. Didn't pass much, I think once the rearend is dialed we will be hauling much more mail!
So, the reason we couldn't finish is because the rearend not drooping (slowing us way down) and the bedsides falling off (thinking i needed brake lights and limping the 2nd bedside back strapped to the bedcage).
Bump stop repairs
snow! Rain-x did pretty good
Not the fastest we went but not bad
What a mess..
After several hours
-Ryan
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Re: 1971 f250 DESERT truck- Race Review
I think you need to triangulate the bedside supports a lot more so they are supported in each dimension. I'd consider running a 1.625 bar across the fuel tank hoop as a tie point for the rear bedsides. You could also use it to support some plastic mudflaps
At that front hose can you get like a stainless steel spring to wrap the hose so it can't kink and fail?
For the rear, is the axle shifting side to side or did the bolts just loosen up too much? Might have to fab a panhard bar.
At that front hose can you get like a stainless steel spring to wrap the hose so it can't kink and fail?
For the rear, is the axle shifting side to side or did the bolts just loosen up too much? Might have to fab a panhard bar.
'70 F-350 CS Cummins 6BT 10klb truck 64k mile Bahama Blue
Contact me for CNC Dome Lamp Bezels and Ash Tray pulls.
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Re: 1971 f250 DESERT truck- Race Review
Hey Jamie,
Bedside supports need triangulation for sure. I thought it would be fine how it was though. Can't believe the tube gusset split right in half. I bet if it was all .120 wall none of it would of happened. It was .90 wall (only .90 wall on the whole truck, I only run .120 wall, but accidently grabbed the wrong stick when i made the bumper/gussets).
I am going to cut the whole rear bumper off and re-make it all along with new bedside supports.
The spring is a good idea, i was trying to think of something that wouldn't allow the tranny line to kink..
The u-bolts loosened up A LOT. The drivers side spring plate was about to fall off, literally. Passenger side was loose.
I'm going to try to replace every single nut on the truck with nylocs. Never have to worry about loosening nuts again.
As for the panhard bar, I can't say anything really as of now but I MAY be get a sponsor that would make all my rear suspension issues go away.
Bedside supports need triangulation for sure. I thought it would be fine how it was though. Can't believe the tube gusset split right in half. I bet if it was all .120 wall none of it would of happened. It was .90 wall (only .90 wall on the whole truck, I only run .120 wall, but accidently grabbed the wrong stick when i made the bumper/gussets).
I am going to cut the whole rear bumper off and re-make it all along with new bedside supports.
The spring is a good idea, i was trying to think of something that wouldn't allow the tranny line to kink..
The u-bolts loosened up A LOT. The drivers side spring plate was about to fall off, literally. Passenger side was loose.
I'm going to try to replace every single nut on the truck with nylocs. Never have to worry about loosening nuts again.
As for the panhard bar, I can't say anything really as of now but I MAY be get a sponsor that would make all my rear suspension issues go away.
-Ryan
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Re: 1971 f250 DESERT truck- Race Review
This time you didn't toast your front suspension, i wonder whythe rear refused to droop. as for keeping the bedsides on you may want or need to run som tubing down the side and bolt/weld the top of the bedrail to the tubes all the way down and stap or across the midpoint. or even to keep Tail lights what about using stepside styled lights? they could be bolted/welded to some tubes coming off the back frame.
"It is better to keep your mouth shut and appear stupid than to open it and remove all doubt." - Mark Twain
'70 f250 4x4 Crew cab 460/C6 '72 F100 390/C6 9.8 MPG AVG. '89 Mercury Cougar LS Dual Exh. V6 . 18.9 MPG AVG. In Town.
I don't want to give em a heart-attack. That is what would happen if I answered the door in the buff. Heck it almost scares me to death when I step out of the shower and look in the mirror.~Mancar1~
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'70 f250 4x4 Crew cab 460/C6 '72 F100 390/C6 9.8 MPG AVG. '89 Mercury Cougar LS Dual Exh. V6 . 18.9 MPG AVG. In Town.
I don't want to give em a heart-attack. That is what would happen if I answered the door in the buff. Heck it almost scares me to death when I step out of the shower and look in the mirror.~Mancar1~
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Re: 1971 f250 DESERT truck- Race Review
Ryan, at least it survived 130 miles or so
For the U bolts I would reuse the correct nuts and add the nyloks as a safety. I also figure sooner or later you'll end up with safety wires.
The .090" should work if it can't flex. That's what the triangulation will do. A pyramid is a very strong structural joint, probably the toughest.
Jamie
For the U bolts I would reuse the correct nuts and add the nyloks as a safety. I also figure sooner or later you'll end up with safety wires.
The .090" should work if it can't flex. That's what the triangulation will do. A pyramid is a very strong structural joint, probably the toughest.
Jamie
'70 F-350 CS Cummins 6BT 10klb truck 64k mile Bahama Blue
Contact me for CNC Dome Lamp Bezels and Ash Tray pulls.
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Re: 1971 f250 DESERT truck- Race Review
130 miles??? Au contraire. We made it 215 miles and I felt every one of them. Another reason it would have been unwise to do another lap was that most of the guys we were pitting with had finished and packed up, some had already gone home. If anything had happened, we would have been without anyone to help us. Race was a total success, we are just one set of leaf springs away from being dialed in and much faster.
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Re: 1971 f250 DESERT truck- Race Review
Cool pics!
Just a thought...have you ever considered using a HANS device? Helmet weight can really multiply in the event of a wreck, rollover, even rough terrain. Just something to consider; you can never have too much safety equipment.
Just a thought...have you ever considered using a HANS device? Helmet weight can really multiply in the event of a wreck, rollover, even rough terrain. Just something to consider; you can never have too much safety equipment.
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Re: 1971 f250 DESERT truck- Race Review
Ryan, this is the coolest thread! makes me want to go out and kick some ass! This truck is sooooo coooolll! keep the stories coming as well as the pics! just awesome!
anything worth doing is worth doing in EXCESS!! - Carroll Shelby
70 F-350 4X4 crew
70 F-350 4X4 crew
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Re: 1971 f250 DESERT truck- Race Review
Haven't really thought about a HANS device, not many people run them i've seen but not a bad idea!
Mr. rattlecan... trade for your crew?
Mr. rattlecan... trade for your crew?
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Re: 1971 f250 DESERT truck- Race Review
Sounds like a hell of a run Ryan, good job on the race.
Oh, if you want a crew you can buy mine!lol
Oh, if you want a crew you can buy mine!lol
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Re: 1971 f250 DESERT truck- Race Review
very Ryan
I've had enough and I'm not alone
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Re: 1971 f250 DESERT truck- Race Review
Great shots of your truck at work.
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Re: 1971 f250 DESERT truck- Race Review
Thanks, just disappointed that I wasn't able to huck it off the big jump because the rear suspension wasn't drooping out. That will be fixed soon enough with all new goodies in the rear
-Ryan
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Re: 1971 f250 DESERT truck- Race Review
Our first sponsor, Alcan spring out of Colorado, has set the truck up with a fresh set of long travel leaf springs built to the truck's exact specifications.
Can't wait to install them! These badboys are 66" Long and are a 10 leaf pack counting the top half-leafs. I will be making 9" shackles to use with these springs. Still spring under. Capable of about 20"+ of travel, however I'm going to have to swap my 16" smoothies for some 18" bypasses soon hopefully to unleash full potential.
These should be on within two weeks, and we are planning on taking the truck to the memorial run in lucerne.
Can't wait to install them! These badboys are 66" Long and are a 10 leaf pack counting the top half-leafs. I will be making 9" shackles to use with these springs. Still spring under. Capable of about 20"+ of travel, however I'm going to have to swap my 16" smoothies for some 18" bypasses soon hopefully to unleash full potential.
These should be on within two weeks, and we are planning on taking the truck to the memorial run in lucerne.
-Ryan