Airfoil for our Engine?

[Blackened300a]

The Chevy guys with the LT-1 engine have a Mod Called the AIRFOIL. as you can see from the pic below, It mounts in between the Throttle body flaps. they claim is can give another 40 CFM of air to the engine.
Is it possible to create or adapt this to our throttle bodies??

[MAD-3R]

The Chevy guys with the LT-1 engine have a Mod Called the AIRFOIL. as you can see from the pic below, It mounts in between the Throttle body flaps. they claim is can give another 40 CFM of air to the engine.
Is it possible to create or adapt this to our throttle bodies??


I saw this thing tested on an Impala SS, on a dyno, before and after with the car staying in place. No differance.

[RF Overlord]

they claim is can give another 40 CFM of air to the engine. I don't understand the physics here...how does a passive device create air flow? Something like this *might* change the VELOCITY of the air charge, but it can't increase the volume, so how does it add CFM...?

[Blackened300a]

I don't understand the physics here...how does a passive device create air flow? Something like this *might* change the VELOCITY of the air charge, but it can't increase the volume, so how does it add CFM...?
RKSport Sells the Item, I gave the description that they posted on there Site
Im with you, I have No idea either.

[Zack]

Have you looked at the stock throttle body yet?
Its part of the OEM design.

[Bradley G]

Polishing the throttle body and taking the plate screws down a bit might be worth a little.

Anybody done this?

[Warpath]

You'd end up taking off the protective coating which means it would need cleaning periodically.

[SergntMac]

Okay...Lemmme get this straight. The folks who have an open oval throttle body can pick up some power by adding a bridge that creates twin round ports from the oval. And, the folks who have two twin round ports can pick up some power by converting to a single oval throttle body...Interesting.

[DEFYANT]

This thing is snake oil

IMO.

I would like a cleaned up TB also. Can the Cobra TBs be made to fit? Or would it be beter to send mine out to be chromed?

What about the oval TBs?

[hbarrett]

Absolutely agree with Defyant. It does nothing, it's Snake Oil!
This thing is snake oil

IMO.

I would like a cleaned up TB also. Can the Cobra TBs be made to fit? Or would it be beter to send mine out to be chromed?

What about the oval TBs?

[Eric91Z]

If I remember correctly from when I put the CAI on the Marauder, the area between the blades in the TB is actually already smoothed out like the airfoil tries to do.

On the GM TPI and LTX motors, the area between the throttle body plates is actually a flat, blunt surface that would act like a wall to mess up air flow. The airfoil would help smooth out the air entering the TB. Some of the aftermarket TB for the GM cars come with that already molded in there so no more airfoil needed.

[BruteForce]

This thing is snake oil

IMO.

I would like a cleaned up TB also. Can the Cobra TBs be made to fit? Or would it be beter to send mine out to be chromed?

What about the oval TBs?

I thought the Trilogy came with a single blade TB? Anyway, yes the Cobra TBs can be used. I just installed a BKK Twin 65mm on my NA MM. Still getting used to the new "hair trigger" feel of the pedal. :burnout:

[CBT]

How much did the BKK cost?
I thought the Trilogy came with a single blade TB? Anyway, yes the Cobra TBs can be used. I just installed a BKK Twin 65mm on my NA MM. Still getting used to the new "hair trigger" feel of the pedal. :burnout:

[BruteForce]

How much did the BKK cost?

$340ish shipped from Summit.

[RF Overlord]

I thought the Trilogy came with a single blade TB? The Trilogy kit re-uses the original TB...

[MI2QWK4U]

This thing is snake oil

IMO.

I would like a cleaned up TB also. Can the Cobra TBs be made to fit? Or would it be beter to send mine out to be chromed?

What about the oval TBs?


Get the accufab Throttle body, bolts right up and i think Lidio stocks them.

[SergntMac]

I would like a cleaned up TB also. Can the Cobra TBs be made to fit? Or would it be beter to send mine out to be chromed? What about the oval TBs? The OEM Marauder TB has some plastic parts that cannot be removed for plating, so, no chroming or powdercoatring, but you can polish it if you have the patience and tools. Don't know about the Cobra counterpart, but if the linkage is metal and not plastic, you may have a shot at something. The BBK is a twin oval, with metal linkage, and it fits, and works on the Marauder. The oval shaped TBs are problematic, you need to trim away the center divider on the upper intake to allow clearance for the butterfly.
Get the accufab Throttle body, bolts right up and i think Lidio stocks them. Isn't this one of the wide oval TBs

[BruteForce]

The Trilogy kit re-uses the original TB...

Okay so its the upper intake that becomes a single opening, right? I think Mac is getting to the same answer I am... that the single blade TBs will fit the Trilogy upper intake without any cutting. Is correct, no?

[RF Overlord]

Okay so its the upper intake that becomes a single opening, right? OK, now I'M confused...there is no "upper intake" per se on the Trilogy setup...the TB bolts to a curved intake duct that leads to the inlet at the "back" of the blower. That intake duct is one big opening, though...

I think we are actually talking about the same thing, different words...

[SergntMac]

Okay, Bob, I see your point now. I believe the word you're looking for is bellows.

I looked up some pics, and the Accufab TB indeed would bolt on a Trilogy bellows without a problem, but not to a Marauder upper intake without some cutting mods to the intake. The BBK (twin 65mm bores) would bolt to the Marauder, but upside down in order to place the throttle linkage between the intake and the driver's side cowl.

BTW, the aggressive tip in results from the realignment of the linkage. Also, a side by side comparasion of the two shows that the Marauder pendulum has a softer slope than the BBK, which results in the butterfly being snapped open, rather than drawn open. Nothing one cannot overcome with familiarity.

[MI2QWK4U]

Isn't this one of the wide oval TBs


Yes, I believe it is Mac.

[shakes_26]

get a supercharger, you wont need no stinkin' airfoil