The long road to Bonneville, goals are 40mpg useable pickup in the 150 club

[gumby79]

Throwing some ideas out on how to flesh out the skin for race only rear IC
.
1 rules state bed cover cannot be higher than the top of the bead rail. They only state a max NO min. So Im thinking a verry large NACA duct 'ish.
Top "contoured plate"
never fails...

Bottom with an additional section forming the front half of the NACA duct.


From the back with the horizontal part of the Bonneville spoiler.


3/4 view with a pice of 3/8 polycarbonate twin wall( similar to colorplast) 8"x58" +2"gap adding up to regulation 10". 58"is the inner plane of the rear tires.


Set the tailgate at an upward angle to match the diffuser starting at rhe differential.

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For the street. Flesh it in the same as the front. Same twin wall 2' x 8' bent qith a heat gun needed 10' to makeit match the IC correctly.


For the front.

[freebeard]

I think I see what you're getting at. If you step back a bit there'd be more context.

So, no more camping out in it?

[gumby79]

Originally Posted by freebeard

I think I see what you're getting at. If you step back a bit there'd be more context.

So, no more camping out in it?

Ran out of yard the driveway ( where I did the mock-up) is 18" wider than the truck. And the nabors dog will not allow me to brake the plane of the property line
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The rear mount IC idea would be for after 150mph when going for a LSR . LSR comp requires a suport /push rig(not allowed to move a "race"rig under its own power except on the track), so sleeping quarters would be in the tow/push rig, or the camping aera at "the bend in the road".

[freebeard]

And the nabors dog will not allow me to brake the plane of the property line

If your neighbor's dog is that finely tuned, then lucky you. I'm surrounded by tiny trailers that have little dogs inside that go off, and their enablers shouting 'shut up! shut up!'.

The rear mount IC idea would be for after 150mph when going for a LSR .

I guess I get it. It looked like it was already halfway done.

This likely the first picture I ever posted on Ecomodder. I wanted to suck air through the Beetle's back window to create a 'roostertail' full of downforce:



The seats would have been an EMPI fiberglass rear [bucket] seat moved forward, IOW teardrops around the X-point (posteriors).

For the 4" steel wire brush U-shaped air dam, just drive on concrete roads for the first 10s of mile until it 'seats in'.

[gumby79]

This is what I skeched about a month ago for minding the rules .
Use an extended cab short bed. This wluld alow moving the seat back to give me some leg room . Then mod the floor to form the duct through the front bulkhead.



The part above the open tailgate is the Bonneville spoiler.

The duck face to the right is a front view of the truck . The blue mock up was a twin flat bed sheet, to give me an approximation of what the shrink wrap will look like.
What I see as ideal would be to turn the contour inside out. A shot without the CAD hood scoop it is aloud 11"tall at the center line and 11" eather side of center.

What the inside will look like when the wight pice is finished.
7°taper=9:1. 3-6"R at the IC core.

[freebeard]

Luigi Colani[RIP] would approve.

[Frank]

I've kind of lost track of where you are with this project; are you shooting for 2020 and which event?

[Tahoe_Hybrid]

Originally Posted by gumby79

This all started in 2013 when my cousin sugested theres a pile of steel and that I build one of my Ideas . It became the "Aero Tonto".


Sorry no pictures the sight is not allowing at this time.

To those that dont like WOT this is not a thred for you sorry context in too important.

3.08 final rear end will help a bit
that is what gm uses for highway gearing at 85mph it's barely spinning at 1900rpm in V4 mode..

[gumby79]

I'd love to throw a 10.5" 14bolt with 3.08 gears Detroit locker and disk brakes, if you could send me a link to a sorce For the gears.

85 with 3.08, 31.7" tires , is 1693 in 6th gear,(.61) 1971 in 5th(.71).
This makes prime speeds @ 1900 (splitting peek hp and peek TQ) are 58 4th(1.0), 82 5th(.71), 95 6th(.61)

Originally Posted by Frank

I've kind of lost track of where you are with this project; are you shooting for 2020 and which event?

2 more major purchases left (for130mph). Hoping for 2020 world of speed.
1 a devorced Drop Box from SCS (a midmount quick change single speed transfer case)
suitable tire and wheel package (100v rated min100(Y) would be ideal)

Jan i installed a Hx35. Improved spool and increased max pressure by 5psi

February I visited Aerohead, he donated all the personal safty gear needed through 150mph, helmet, fire sute, and parachutes needed for 178 and up.

April I installed a 6sp Allison trans witch got me to103mph from 92.5from the stock RH46.69OD. With better OD 5th .71 6th .61 and lockup torque convertor. Makes it like 7gears.

July-sept , I tested a BW S366/80 .80(16cm) turbo with and without a custom 2 into 1 t-3 spacer ,reduces the exhaust housing size by hafe. turns too big by 1-3 sizes for current OEM fule settings only able to muster 10psi(12psi was stock) into 20psi with spacer/ reducer(3 psi better than upgraded stock ). I got the injectors repoped to 258bar and spray pattern confirmed(they were down to 209bar). Reinstalled HX35 with the BD Diverter valve (quick spool valve, QSV) dose the same as the 2 into 1 spacer under low boost but opens to full flow by 20psi. Almost spools 1psi @ idle takes ~50° egt bump to hit 1psi, this is down from 200+ in gear.

Installed a MPG 12C from The Sensor Connection. Com. 12probe egt with max recall, 3 minute color graph display, 4 alarm set points (2 for all egt and 2 for the rest "CHT")

Dec installed a hot air intake using the stock 1st gen filter on a 2nd gen air filter pipe. 2nd gen is a 180° off the turbo and places the filter between the exhaust manifold and finder next to the cowl. In preparation for the cowl induction hood scoop. With the HAI just befor Christmas at the idaho-montana border I was seeing 11° intake (air at filter) 112° post Turbo, and 9° at the intake manifold. This was with the top 10" of rad blocked with cardbord and 12" of the passanger side (IC hot side ,rad cold side) top to bottom blocked with cardbord also.

Currently working out plans for 2 body kits. 1 to comply with race rules above 150mph and 1 for best practice (daily driving/40mpg) up to 150mph.
Per current race rules Body Mods are extremely Limited for pickups only cars have classes that allow almost full modification. Wile at Bonneville Last Summer I talked to some of the rules folks about getting things more of an even Keel between diesel and gass/fule cars he said nah we got too many classes , as it is there's over 800 classes. Over 200 of those are just for roadsters.

body mods allowed are a bead rail or lower rear deck lid, hood scoop, and grill mods not extended more than 1/4" past a plan farthest forward point of the original bumper and its original position

For 150mph and up will require installing a cage as well.

It depends on which is king HP or TQ as to how much more aero is needed for 130mph