This is true enough. With your setup, under hood scoop, I believe you have a player.

For the direct flow thru, the scoop plays a big part. A standard top mount, on the other hand, with a few mods, has the potential to collect more air & cool faster given the surface area available. The rain test, no scoop, proves this out. I made an underhood scoop for the OE, similar to what you did with the Forge, with good result. Which brings us back to the hole in the hood. How much of a scoop is necessary? An example would be your Forge, if the underhood scoop matched the radius of the engine rock & it sealed up well with the hood, don't you think the IC would benefit? The Alta design, flow thru, has the fences & seals that could take advantage of no scoop.

What would the no scoop scoop look like? Don,t know, but the tape on yarn goes through the hole & in the rain there's a lot more water under the hood.

Underhood heat management is whole bunch of pages & it has at least 4 threads here. So far the only thing I've done is build a radiator box,only for the top half of the radiator.

 

This is awesome man

You're hooked

 

HA! Or a glutton for punishment!

 

I agree that a really good scoop helps a lot. I use a heavily carved up stock scoop with a CF VIS lip. The other very important part is sealing the IC to the hood. That big oil cooler you see if for the Rotrex. That help my temps just a little .

Longboard

 

Got any more detailed pics of your scoop?

 

Hey Damo,

Here you go.

 

Cheers fella

So its just the BBR Venturi Scoop. What exactly have you cut on the original scoop?

 

it's a modified donkey scoop
Don't let him convince you otherwise

 

Yes, it's the BBR scoop in CF. I have a standard BBR sitting in the garage.

I don't use the stock seal that attaches to the underside of the hood. Mine seals via a custom made 2" wide foam shaped to seal perfectly. My IC sits about 2" closer to the front of the car so I had to trim at least that much off the back bottom lip of the scoop. I trimmed it out wider from left to right as well as trimmed the material under the top lip. All in all it really opened it up.

Longboard

 

Now that's a scoop. Is the IC atached to the motor? If so, how did you get that great angle? I can see, what looks like, the entire length of the IC through the scoop. I know that with the IC foward you can get more angle, but not without getting a few things ( they need some convincing ) to move out of the way.

Guess I'm gonna have to make a bigger 1......

 

the goal was to get the biggest I/C in there as possible, more for airflow than actual cooling because the Rotrex is so much cooler anyway.

 

Is that an oil cooler in the lower grill?

 

yes for the Rotrex

don't worry they should be done for the engine oil next week

 

I got those pipes done on the Automatic Transmission cooler. They were only about 1/4 inch, i got them taken up to 3/8 inch or 13mm. I am very happy with it and it bolts straight up in the factory postion

 

With that scoop &, from what I can see - most of, if not all the IC, it should cool very well, yes? There are a bunch of things happening, a large voluume of air, a much cooler running SC, oil cooler for the SC, less mass underhood that, all, generate heat, I'll bet you did something to the intake manifold, there's more, I know there's more but I have not seen the car in person. The underhood temps should look a bunch better.

I can't see what the cooling fin frequency is, if it's not too dense -air flow to the underhood will be a benifet. Regardless of fin density, that IC must work well ( a big must ). When you say "more for air flow" I think you have a "2 for".

You gotta stop making all this great food. You're making me hungry... again

 

it's all worked better than we hoped for

now I need to verify Longboards data with the water meth, he knows what I look for so I would tend to believe his numbers. But we always like to verify everything "just to make sure"

the real test will be on the track

 

Jan, just make the ultimate intercooler for the rest of us already!
All im looking for is 100% thermal efficency with zero pressure drop

 

I'll leave that intercooler up to the internet forum bench racers

but I am designing a new one for production

 

Yes there is more . Don't forget the IC is perfectly centered in the scoop. There is also the W/M system .

Longboard

 

Keep me in the loop on this one Jan

 

I think you are talking to the wrong guy... I'm sure if you pitch this idea to some other well known "company" (based on two guys and 14 fake accounts) you will get the ultimate sub-zero cooler... black coated with thermal insulating and heat radiating secret paint and can direct more air through the cooler than there is available in the air itself to bring temperatures below ambient without the need for water or ice and it would be made of Carbon Fiber too for aesthetics and to save weight adding an unknown amount of ridiculous power to your car... mind you this "cooler" will have the requested zero pressure drop and in matter of facts will add an additional 5 psi of boost to your gauge

All jokes a side, I think you guys are doing a great job and if I can locate my original IC I would strap it on and send you my current V1 for FREE to test and keep . I would even take care of shipping and then you can use it for whatever reason you want to or at any BBQ event of your liking

 

The oil cooler is more of a longevity adder for the Rotex correct? It's primarily designed to manage the bearing heat ?

 

If you see the IC testing that Dr Obnxos did a couple years back, the data shows that the GRS, GTT IC's had less pressure drop than the stocker. You could proabably add the Forge and GP IC to that list.

Add a WM kit to any of the above and you should be able to reach your goal.

Note: MISFITOY has been running WM for years and recorded temps below ambient.

PS - i can't find Dr Obnxos thread on the testing he did. I will keep searching to see if I can add the link.

 

here is one thread but not the main one I'm looking for

 

it's a must as there is no oil capacity inside the charger like the eaton.
the bigger cooler adds more capacity which helps keep the oil even cooler