FlatCad Racing's Quest for 200 MPH-a Cadillac Flathead Story!

I agree. I thought the one I made for Hooley was the ugliest piece I had ever made but this one may top Hooley's. It actually looks better than the photographs. The top and sides are curved and it has a rounded edge on each side of the top which does not show well in the picture. The top curves to match the contour of the top. Air flow over the scoop should continue on over the top of the car without interution. It is a form follows function exercise, which in this case did not make a good looking product. Maybe it will grow on us.

John

 

Good work brother.

 

Yeah, I understand and agree.

 

Trent, I agree that aesthetically, it's fugly!

However, like John said, it's a matter of function over form.

Look at how much frontal area that flat windshield has. Now look at the shape of the scoop, and how much of the frontal area disappears.The scoop significantly changes the CD!

So from an aero standpoint, it's freaking beautiful!

 

Don, the bottom end looks really great and strong too!

The scoop looks spectacular!
I know you have done a lot of work , but what about making a full canape in polycarbonate tha covers all of the hood? That would give even better aerodynamics and as a bonus, it will be easier to see the horizon?
It would be kind of Bonneville's answer to Daryll Starbird!?

Then again, I don't know the rules, and just thinking.

See you.

Kjell

.....................................
Taildragger&fenderless

 

WZ looks like fugly and fast, what a combo........ paint it and it will disappear

once again Don that is beautiful work

 

Haha! If you think that's Fugly....

Here's a quick mock up of spill plates and a spoiler.John K feels the spill plates will help prevent a spin, and the spoiler will give us some down force.

We did decide to move this further 'outboard', and there will be more on this later.

 

200, whew , to fast for me but cool

 

Keep up the great work fellas.I love this thread and the amount of balls it takes.
Aerodynamics............

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Damn Jeff, That's a pretty piece!

Well, If the hood scoop caused a ruckus, check out what the wing and spill plates will look like!

 

Are you gona put her in a vindtunnel?

......................................
Taildragger&fenderless

 

"So from an aero standpoint, it's freaking beautiful!" Brilliant.

 

I'd like to, but doubt we will make it before El Mirage in May. Hopefully we can take it in June.

Thanks!

Ok, to be legal, we have to fill in some gaps between the spoiler and body. John is working on a couple of ideas, then we'll send the patterns to Pops29, so that he can work his magic!

 

Ok, moving on with aero mods, our new, narrower axle showed up! With the axle, new rims, and narrower tires, The front end will be 9" narrower!

Randy is setting this up to change out quickly in the pits. So, our new 'quickchange' front end, will be installed for comp coupe class, with more 'glass work by John K., and removed for altered class.

 

While we wait on the new roller cam from Dema, Dale and Don are busy with designing new lifter blocks and roller lifters. The lifters will be slightly oval, for indexing purposes.

From Dale:

Just finished the first design of the lifter block – talked to Don today as well. He is going to make me a picture of the lifter design . . . so I know what he wants. I’m going to have him make one out of aluminum first – to see what parts of the design will need to be tweaked (tough to tell without a prototype).

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We may be the only Hot Rodders/Racers with a 'Quick Change' front end - I think I'll patent it and make all sorts of money! I'm expecting calls from Winters, Frankland and Speedway and others at any moment. Will let you know how it goes.

WTF . . . where do the 'gears' go???

 

Nice looking setup Don! What HP/Power is that motor? Have you thought about 'bench testing' it with the same weight gear lube with suction and pressure lines hooked up - making sure it can handle the pump without over heating? Just an idea!

 

I love it . . . and I'm really not interested in going into the 'salt blender' at high speed when we lose rear traction!

 

Nice axle guys... I like the quick change set up so you can run more then one class.

 

Thanks Bill!

1/2 hp- It will handle it!

I'll be flow testing on the bench, to make sure we know how much oil we have going to both the tranny and the rear diff.

Approximately 60% of the volume from each stage will be used, with the other 40% returning straight to the oil reservoir.

 

Are you allowerd to put windows in the scoop so that you can see through it?

 

Actually John and I discussed that yesterday though you can actually see around it buddy and I have both set in it and its really not as bad as it looks but depending on rules we may actually do that


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Hey Gang - been working all weekend on some SolidWorks 3D designs for our own custom roller cam setup. Don, Buddy and I have been scheming on how to make this setup --> which requires the creation of our own lifter blocks (there are four that bolt into the engine) - along with the lifters themselves. Dema Elgin is making the roller cam.

Anyway, Don came up with the idea of using 'flats' on the sides of the lifter bodies for indexing. We've never seen that done before - so we're going to give it a try. The lifter blocks will be CNC produced out of solid hunks of cast iron stock. Most of the surfaces, holes, etc - will be done on Don's CNC machines. The lifter body holes themselves will be done with a precision EDM machine - which can hold extremely accurate tolerances - should be able to get exactly the shapes we need (at least that is the theory!).

We're going to be using Harley .855 roller lifters and axles - the rest we'll make from scratch. Now it is on to some prototype blocks - to see if I have the design somewhat "close".

We're going to have a full-length oil galley in each block - so that every lifter has it's own oil supply.

Here are some pictures:

 

Buddy, Dale, I'm really liking the direction and process you going with on the lifters. That set upshould be tough and fool proof.If I had the equipment I'd make them for you.

 

Lifter Block Support System - Prototype Design

Working on a prototype support system for the lifter blocks. The idea is to tie the lifter blocks together and then tie the whole assembly to the 3/4" steel intake girdle plate. We'd use find threaded nuts on the rods and adjust them to put a bit of down-force or 'crush' to the lifter blocks themselves. Hopefully this will stabilize the blocks and remove some stress from the four cast iron 'tabs' that the lifter blocks bolt to. I am very nervous about those stock lifter block mounting tabs - they are very small, hang out in the breeze and with roller lifters and heavier springs - will have lots of load on them. Break a tab off the block - everything becomes a blender in a hurry.

The two rods would go through the aluminum valley plates and tie into the intake girdle plate. I don’t believe they can just bolt through the intake girdle plate (due to the intake manifold bottom – at least from my memory) – so we may need another plate that bolts to the underside of the intake girdle.

In a perfect world, the rods would like up with the cut-out holes in the intake girdle plate (giving us a place for the adjustment nuts). It isn’t a huge effort to make and I believe it would really strengthen the whole lifter assembly and take some strain off the block ears.

So - here is my prototype design . . . what do you guys think?

Thanks for looking . . .

B&S

 

It really look like a good idea!
I was thinking of your lifter design, and if we can adapt it to the Ford Flathead? You know how hard it is adjusting my rollers!?

We shure looks forward to hearing this lion roar! Live

Kjell

....................................
Taildragger&fenderless

 

Lifter Block Design and Support System - Version 2

Don reviewed my design and had some good ideas - so I incorporated them into a new design. Basically, I'm letting the lifter block bodies bolt down as they always did - didn't try to use the same studs to hold the bridge plate.

To handle this, I redesigned the lifter block, increased it's width and added 4 new bolt locations to bolt the bridge plate on AFTER the blocks are all in. This makes it much easier to get all the valve and oil line drama completed - then just drop the bridge plate and support rods in last.

Thanks Don!

 

Hey Dale did you get my email?..... Carl

 

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Well gang I got the new front end installed this weekend. It's gonna take a mile to turn this thing around but who cares cause all we gotta do is go straight lol stay tuned more to come real soon


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