Author Topic: 1986 D150 Autocross/Strip Build AUTO X for the Win  (Read 7872 times)

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Offline neil4224

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Re: 1986 D150 Autocross/Strip Build SPRING TIME AT LAST!
« Reply #50 on: June 8, 2019, 07:54:17 pm »
Went to the free Super Summit Event at Summit Motorsports park in Norwalk today.  Two hour ride in the truck with the racing buckets is not the nicest on the body, especially with the stiff suspension.  Got to do two runs on the autocross course.  Was getting packed or I would have went again. 

Can't beat free events though.  Never been to the super summit they had Bigfoot 5 there and one of their newest monster trucks there as well. Free dragstrip runs (over and hour wait) free autocross and free off road rock crawling course.   

Here is a short (shaky) video of my 2nd run with the exhaust cutouts open.  Dad did the video, we need to work on his video recording skills. Run was slow as ****, but it sure was fun.  Man I see why these guys with 100 k cars really get into these autocross events.  They are truly a blast even with only a minute to minute and 1/2 course.  Enjoy... ;)

https://www.youtube.com/watch?v=Lv8LvzcM5W0

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    Offline FULLSIZE

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    Re: 1986 D150 Autocross/Strip Build SPRING TIME AT LAST!
    « Reply #51 on: June 11, 2019, 08:53:41 am »
    Great to see a homebuilt truck hanging it out at the autocross. Good job!!
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    Offline KurtfromLaQuinta

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    Re: 1986 D150 Autocross/Strip Build SPRING TIME AT LAST!
    « Reply #52 on: June 11, 2019, 11:00:35 pm »
    Great to see a homebuilt truck hanging it out at the autocross. Good job!!
    Yes indeed.
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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build Burnout Video
    « Reply #53 on: October 10, 2019, 08:17:32 pm »
    Finally got a video of some tire smoke,

    https://www.youtube.com/watch?v=9VUyYshFf64&feature=youtu.be

    Not to bad for a small block, starting to get the third gear chirp shift down.... ;D

    Enjoy,

    Neil
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    Offline kingcrunch

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    Re: 1986 D150 Autocross/Strip Build Burnout Video
    « Reply #54 on: October 11, 2019, 07:37:27 am »
    Yes. This triggers all the right things in me  ;D

    What you might want to do for an event like this:
    - Get the tire pressure right (there's tons of info on this on the webs)
    - get yourself mounted in the truck properly (seats and belts go a LONG way)
    - practice driving (get some used cones and practice cornering, quick turns, waving, etc. do this as often as possible)

    This truck should be able to go a lot quicker than that without fancy chassis mods.
    It may need a bit weight in the back though.

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    Offline kingcrunch

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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build Burnout Video
    « Reply #56 on: December 29, 2019, 08:29:36 pm »
    Header wrap done, at least on the passenger side...., pain in the arse putting it on while on the truck.  About 3 hours worth of work.  Best advice I can give is when you are starting have someone to help you, there is so much extra you need the extra hands to keep it straight. 

    Neil
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    Offline Hemiadda2d

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    Re: 1986 D150 Autocross/Strip Build Burnout Video
    « Reply #57 on: January 10, 2020, 11:24:04 am »
    Nice build and vids.  Love the burnout!
    How did the homebrew frame boxing work out in autocross? 
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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build Burnout Video
    « Reply #58 on: January 10, 2020, 12:29:43 pm »
    No way really to tell without a comparison on the track, but how I know it definitely made the chassis way more rigid is when you jack it up.  As I compared them based on my previous observations before welding vs. after it made a huge difference in how the truck acts when you jack it up.  Basically you jack up any part of one side between the front and rear wheels and the entire side comes up, lifting both wheels at the same time.  My buddy was pretty shocked when he drove it last week how stiff it felt based on it being a truck.  Sway bars probably realy help this too though.  He has had both a 2000's ford and now a 99 chevy and was pretty shocked in how controlled it felt versus those.   

    Neil
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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build Burnout Video
    « Reply #59 on: March 1, 2020, 02:44:09 pm »
    Got some slight work done, mainly sourcing parts to make her legal on the strip and autocross. Waiting on some funds to buy all the nickel and dime items that adds up real quickly.  What a nightmare converting lines to fit -8an to 3/8 to 5/16". Doing all this with the least amount of rubber hose is the trick.

    Neil

    Owner of:
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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build Fixing more Wheelhop
    « Reply #60 on: April 29, 2020, 03:35:06 pm »
    Well new wheels and tires added, lowered it quite a bit more and wound the gears up as well.  Running about 2500rpm at 60 now.  Wheels are 17 x 9's, with 255/40's up front and 275/40's on rear.  Bad part with the drop is SCCA rules are coming back to bite me.  Being that the fuel cell is in the back under the bed, I have to have 6 inches of ground clearance from the bottom of the fuel cell to the ground.  I am at about 5 and 3/4 inches.  Which means I am going to have to remove the bed and lift the fuel cell by about a 1/2 inch to a full inch. 

    In doing the wheels and tires the dreaded wheel hop came back as well with a vengeance, I think from the increased traction.  Came to find out my slapper bars were not close enough to the spring eyelit to stop this from occurring. I ended up picking up an inch longer bumper for the front of the slappers.  It appears that it has fixed the problem. 

    Before on old tires and wheels, you can see the bar slapping pretty hard at the initial start of burnout...

    https://www.youtube.com/watch?v=9VUyYshFf64

    After with new tires and wheels and new "closer" bumper.  Hopefully this is the fix, haven't had time or dry enough weather to really try it out.

    https://www.youtube.com/watch?v=DD006rDTdYg

    A question for anyone with spring under axle drag experience:  Can you decrease wheel hop by adding an additional leaf spring that is nearly as long as your main leaf?  IE help reduce the spring from loading and unloading?

    I have read that drag racers supposedly did this back in the 70's and 80's even with slapper bars to reduce wheel hop.  Not a lot of information on the web for this type of stuff since it all predates the internet. 

    If I have to take the bed off anyway might as well add a couple longer leafs at the same while removing some of the shorter to help reduce hop if it does truly work. 

    Let me know your guys expertise. 

    Neil

    Owner of:
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    1986 D150, 318, np435 4 speed lowered with ford 9.75 rearend

    Offline RedneckInTraining

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    Re: 1986 D150 Autocross/Strip Build Fixing more Wheelhop
    « Reply #61 on: April 29, 2020, 08:20:26 pm »
    Caltracs or similar should be able to control axle wrap.Just have to adjust them so they dont bind up the suspension.
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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build Fixing more Wheelhop
    « Reply #62 on: June 26, 2020, 10:18:22 pm »
    Man fellas been a crazy few months with this whole covid thing.

    Finished the sound deadner on the drivers side floor.  Did some measuring and I am pretty sure I can go with 275/40's on the front as the 255/40's clear with ease.  Also purchased new powersteering pump, lines, and rear seal for the gear.  Hoping to eliminate the slight leak I have at the back.

    All events for the public have been very limited on the pit crew and spectator thing so no autocross yet.... but I did make it to the 1/8th mile that is close to my house. They have been opening with pretty good success in turnout, with really no limitations that I could see.

    Took a new radiator hose and help from a neighbor to make it to the track but I made it.  God she is slow and heavy, loses traction like a champ too.  Eased out of it on my launches after blowing the tires off on my first run.  Ran three passes, 11.3, 11.4, and 11.5.  Best reaction time was .003 on my first run against a hemi 300c.  Pulled out on him and he blew past me, his time was 9 something.  Here is a video of my second pass on my own... need to learn to trigger the lights faster, truck kept wanting to roll back. Novice driver at its finest. 

    https://www.youtube.com/watch?v=uYvT07BGgQY

    Been converting a 31ft camper to make a trailer out of it to haul this thing.  With the new low pro tires I am running about 2600 rpm in 4th at 60mph.  Winding her up past that just feels cruel on the highway and kinda scares me when it comes to wearing out the motor. 

    Neil
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    1983 W150; 318, 727, np208

    1986 D150, 318, np435 4 speed lowered with ford 9.75 rearend

    Offline kingcrunch

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    Re: 1986 D150 Autocross/Strip Build Fixing more Wheelhop
    « Reply #63 on: August 22, 2020, 03:52:30 pm »
    Caltracs or a slapper leaf.

    Look into the rear suspension setup of an SRT-10. It's dead simple but it works really well.

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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build AUTO X for the Win
    « Reply #64 on: September 11, 2020, 06:48:43 am »
    Finally was able to take this thing to a true Autocross Course last Saturday 9/5/2020 at Carfest USA in Wampum PA.  Didn't do too terrible.  In 8 runs, I spun out once, lost the course 3 times, and went from 70 second runs down to a 58.8 as my best.  Instructor rode with me 3 times and even ran the truck after the event was over for 3 additional runs.  Said it was one of the wildest things he has been in for as big as it was. Mind you he drove a subaru brz....

    Here is I believe my 5th run...

    https://www.youtube.com/watch?v=PVn3e-AAEgw 

    Video is a little rough, still trying to teach the old man some new tricks with the cell phone camera.  Didn't get much other usable video.  LOL. 

    Good news is only nuked one brake rotor.... They were old anyway.  I know with this kind of abuse I need to go with slotted and dimpled rotors.

    Neil

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    1986 D150, 318, np435 4 speed lowered with ford 9.75 rearend

    Offline Mopar572

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    Re: 1986 D150 Autocross/Strip Build AUTO X for the Win
    « Reply #65 on: September 11, 2020, 01:08:23 pm »
    Have you checked out UMI motorsports park in Clearfield PA?  They do at least two autocross events there every year.  Check it out and if you get up that way next year let me know, I live about 2 miles away you're welcome to park youre trailer at my place and share my beer!
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    Re: 1986 D150 Autocross/Strip Build AUTO X for the Win
    « Reply #66 on: September 13, 2020, 02:34:19 pm »
    Finally was able to take this thing to a true Autocross Course last Saturday 9/5/2020 at Carfest USA in Wampum PA.  Didn't do too terrible.  In 8 runs, I spun out once, lost the course 3 times, and went from 70 second runs down to a 58.8 as my best.  Instructor rode with me 3 times and even ran the truck after the event was over for 3 additional runs.  Said it was one of the wildest things he has been in for as big as it was. Mind you he drove a subaru brz....

    Here is I believe my 5th run...

    https://www.youtube.com/watch?v=PVn3e-AAEgw 

    Video is a little rough, still trying to teach the old man some new tricks with the cell phone camera.  Didn't get much other usable video.  LOL. 

    Good news is only nuked one brake rotor.... They were old anyway.  I know with this kind of abuse I need to go with slotted and dimpled rotors.

    Neil

    Grew up just up the hill from Wampum (Enon Valley).  I did an event there quite a while back.  A good friend was probably there.  Short dude, about 60, running a pretty hot silver Corvette.  He usually places pretty high.
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    Offline neil4224

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    Re: 1986 D150 Autocross/Strip Build AUTO X for the Win
    « Reply #67 on: September 15, 2020, 06:47:47 am »
    Grew up just up the hill from Wampum (Enon Valley).  I did an event there quite a while back.  A good friend was probably there.  Short dude, about 60, running a pretty hot silver Corvette.  He usually places pretty high.

    You still in the area Chilly?

    Bought 2 hour drive for me to Wampum.  Buddy of mine I grew up with used to run the Go Kart Track there years ago.  Said it was one of his faves. 

    Have you checked out UMI motorsports park in Clearfield PA?  They do at least two autocross events there every year.  Check it out and if you get up that way next year let me know, I live about 2 miles away you're welcome to park youre trailer at my place and share my beer!

    Would definetly hit you up if I ever go that far east.  Gotta get the 4wd half ton converted to 1 tons and finish my trailer up before I go much farther away from home.  Hate driving the race truck to and back for fear of breakage and not being able to get home in a cheap manner.   :'(


    Neil
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    1986 D150, 318, np435 4 speed lowered with ford 9.75 rearend

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    Re: 1986 D150 Autocross/Strip Build AUTO X for the Win
    « Reply #68 on: September 15, 2020, 07:16:11 am »
    Left Enon Valley long time ago, ended up back in W Pa for about 20 yr (Mercer) but moved to TN a year ago. 
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    Offline jungle

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    Re: 1986 D150 Autocross/Strip Build AUTO X for the Win
    « Reply #69 on: September 18, 2020, 03:56:32 am »
    Ditto!!
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