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I did a search, but couldn't find where anyone has added extraction vents to a factory V1 hood. If anyone has already done it, I would love to see pictures.

The reason I'm interested is because I run the Big Bend Open Road Race (bborr.com) almost every April, and I'm thinking about running my V next year. Especially if I add a belly pan under the engine compartment, I'm going to need to let the air escape out through the hood, both for radiator airflow and to minimize aerodynamic lift.

So, I'm thinking about TrackSpec Motorsports (trackspecmotorsports.com) louvers. Of course, they don't offer a fitment specifically for the V1, but the C6 kit looks like it might go well with the Caddy's body lines. To get a better idea, I cut out some cardboard pieces to the dimensions from TrackSpec's website, and laid them out on my hood.

First, here's what the underside of the factory hood looks like without the insulation (in case you've never seen it):
Automotive lighting Hood Grille Motor vehicle Automotive tail & brake light


And, here's the hood with my cardboard pieces on it:
Car Automotive tail & brake light Land vehicle Automotive parking light Vehicle
Tire Wheel Vehicle Car Land vehicle
 

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Discussion Starter · #82 · (Edited)
I merged your post into an older thread with discussion of hood vents. (The old thread was in the Appearance Mods forum, which is probably why you didn't find it.)

Unfortunately, I've never gotten beyond the initial hole cutting that I did a few years ago (the pics in post #73). The hood is still sitting in my basement and I don't know when (if ever) I'll get around to finishing it.

Edit: Earlier in the thread (post #51) user crankedupforit actually beat me to the punch and had a shop install the Z34 vents into his hood. His were positioned a bit differently from what I was planning to do, but same general idea. crankedupforit passed away a while back, but the car resurfaced on this forum last year in the hands of @CtsFeVer. They may be able to give some more pics of how the vents were done on that hood.
 

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Thanks, AAIIC. I did read your posts about the Lumina vents some time back. But, when I went to post my thoughts on Sunday, I couldn't quickly find it. I do like how they turned out on crankedupforit's hood.

The C6 layout that I showed above looks a little crowded to me. Unfortunately, there's not a lot of room under the hood to spread the 3 vents out further, without compromising their function. When I get a little free time, I'll try mocking up a pair of TrackSpec Motorsports' "Large Angular Universal Hood Louvers" to see how that simpler set up looks and fits.
 

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Discussion Starter · #85 ·
Yeah, I think if you're just doing the 2 smaller vents, I would think the 2 similarly-sized ones from your first pics would match the lines of the hood better.

Or what about doing just the big center vent?
 

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I agree that the smaller louvers from the C6 kit better match the hood lines, because they're tapered. I was thinking that they're too small by themselves. But, comparing dimensions, they're not much smaller than the "Large Universal" louvers.

The big center louver by itself would probably be more effective at venting under-hood air at speed than the two louvers placed further back. The main reason I like the idea of having those two back there, is to give heat coming off the headers (that I don't have yet) somewhere to go, when the car is parked hot. Otherwise, the engine compartment turns into such an oven, and all the plastic bits get baked to death. It seems like having openings in the hood directly over the headers (or as close as possible) would provide the best opportunity for natural convection to do its thing and minimize under-hood temperatures after parking.

Hmmm, decisions, decisions...
 

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I just ordered the C6 T1 louver kit. Once the actual louvers and templates come in, I can work on the layout some more. Currently, I'm just estimating with cardboard, because TrackSpec's website doesn't provide all of the dimensions. If I can't find a layout that I like, I'll consider shortening 1 or more of the louvers, or not installing all 3 pieces.
 

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Discussion Starter · #89 ·
That came out quite nice! The sides of the vent seem to line up pretty much parallel with the character lines in the hood, so it fits the lines of the car.

What's it look like from the underside?
 
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