69 Camaro front valance and spoiler on a 67 c10?

[skorpioskorpio]

Originally Posted by Andy4639

Well I like the hood and the function it serves. After thought? Huh... I don't know why you think that. That truck was built for one thing and that was to go fast and take curves. The truck can handle it's own against most stock vetts! Going straight are on a road course.
How about this one.
This is Rob's of 'No Limit's' Hellboy and it is one bad truck and it happens to be of our own years also. By the way both of these trucks are members on here and vendors.
I'm sure either one would help you get the hood are the spoilers.

The function you speak of is? As far as getting air into the engine, it probably doesn't really do that very well, there is a reason why forward facing front edge scoops on hoods are pretty much absent from racing after about 1970 on full bodied cars, they are just not very effective. Looks cool, and looks like it should work well, but they really don't, not by themselves. Modern race and supercar ducting will almost always provide a defined exit path for what ever air is sucked into a duct and that exit path will have some means of producing a low pressure area over it to pull air through the duct.

As far as lightness, the gain from going from steel to fiberglass will drop the weight of the hood by half, carbon fiber will drop the weight maybe 10-20% from fiberglass, so it's diminishing gains from exponential prices, fiberglass is hundreds, carbon is thousands. carbon is sexy and it's high tech, but an aluminum radiator will shed more weight than a carbon hood if you've already gone fiberglass, just sayin'.

Robs Hellboy is really a race truck, lots more going on with that truck than a couple body mods and some suspension tweaks, there is a build thread of it around here somewhere. These truck, done right, can handle really well, despite the pretty terrible aerodynamics, because they are very wide it makes them really stable. A Blazer has the same wheelbase as a C6 'Vette but it's 6 inches wider.

[Andy4639]

I only brought it up because you all mentioned the hoods. Yes both the said trucks are proven race trucks. I'm sure they have more in their wheel's than I have in my whole truck.

One of my favorite pictures of Hellboy!






Here is another Optima challenge truck it looks a lot like the drawing. This one was the one I was looking for to begin with.

[Possmguts]

Originally Posted by Andy4639

[B][COLOR="Red"]
Here is another Optima challenge truck it looks a lot like the drawing. This one was the one I was looking for to begin with.

Now this one I like. Its close to the look Im going for.

[Possmguts]

Originally Posted by skorpioskorpio

The function you speak of is?.

Well IF the holes are piped directly to the intake then they would serve nicely as ram air intakes... if they just are open holes to the engine bay then I see your question.

[skorpioskorpio]

Originally Posted by Possmguts

Well IF the holes are piped directly to the intake then they would serve nicely as ram air intakes... if they just are open holes to the engine bay then I see your question.

Yea, but that was kind of my point, all those "Ram Air" systems from the '60s didn't really work very well.

[no1udknow]

Originally Posted by skorpioskorpio

Yea, but that was kind of my point, all those "Ram Air" systems from the '60s didn't really work very well.

Ram air does not lend itself well to any carbureted application really. Unfortunately when you ram air into a caburetor venturi with such force, the pressure in the venturi actually increases instead of dropping like it is supposed too. There becomes too much air and it cant get out of the way fast enough and forces itself into any opening it can find including the jets and the float bowl. Honda and Kawasaki figured out that they could overcome this by piping a line from the ram air tube to the float bowls on their motorcycles, thus increasing the pressure in the bowls as the air pressure in the ram increased. Allowing the venturi effect to work properly. Cowl induction on the other hand takes advantage of a semi stable pocker of air at the base of the windshield. While all the air is turbulent flowing under and over the hood, the pressure of the pocket of air at the base of the window was more like the air would be if the car weren't moving which makes for better conditions for the venturi effect of the carb......

wow that was a ramble sorry.... I just love performance technology....

[skorpioskorpio]

Ram Air has all kinds of issues, the ill effects of pressurizing carburetors is just one of them. In most of the '60 applications of forward facing hood scoops air pressure and density were all over the place as humidity, altitude, attitude, and temperature changed, basically guaranteeing an inconsistent air fuel mixture. Same holds true, to a lesser degree, of electronic fuel injection, most of the OEM PCUs are not really fast enough to adapt to wildly changing intake air quality which is what a crude velocity based attempt at free forced induction gives you. Best thing you are going to be able to do for consistency is to give an engine a cool air source without turbulence at predictable pressures. To try and force some inconsistent air source into a engine based on aerodynamic guesses will lead to combustion that is constantly varying between rich (dirty) and lean (destructive).

...and yes that is why cowl induction type scoops or rearward facing scoops basically replaced all other types.

[Possmguts]

Originally Posted by skorpioskorpio

Ram Air has all kinds of issues, the ill effects of pressurizing carburetors is just one of them. In most of the '60 applications of forward facing hood scoops air pressure and density were all over the place as humidity, altitude, attitude, and temperature changed, basically guaranteeing an inconsistent air fuel mixture. Same holds true, to a lesser degree, of electronic fuel injection, most of the OEM PCUs are not really fast enough to adapt to wildly changing intake air quality which is what a crude velocity based attempt at free forced induction gives you. Best thing you are going to be able to do for consistency is to give an engine a cool air source without turbulence at predictable pressures. To try and force some inconsistent air source into a engine based on aerodynamic guesses will lead to combustion that is constantly varying between rich (dirty) and lean (destructive).

...and yes that is why cowl induction type scoops or rearward facing scoops basically replaced all other types.

with all that being said... then how in the world does a carbureted turbo vehicle even work? Would a blow through set up not be the same principle as what you're saying dont work? or even draw through for that matter?