Home-built bumper grille ducts
03-22-03, 11:23 PM
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Home-built bumper grille ducts
I am putting together the forms for a set of fiberglass nose ducts on my front bumper cover. The former brake cooler ducts will feed my cold air intake and header cooling duct. Here are the pics:
What do you guys think?
What do you guys think?
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03-23-03, 12:47 AM
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It is to keep the engine bay temps down for the sake of cooler intake temps. My header is double heat wrapped and there will be a sheet aluminum heat shield between it and the intake manifold. The shield will form a boxed shaped plenum to receive the incoming air from the drivers side duct, fed by a flexible hose. Veteran road racers and hill climbers insulate their intake manifolds and shield it from the header because it is an effective way to increase the engine's volumetric efficiency (colder air is denser).
In other words, I am squeezing out all the performance of my NA engine possible without a radical port, supercharger, or turbo.
In other words, I am squeezing out all the performance of my NA engine possible without a radical port, supercharger, or turbo.
03-23-03, 03:54 AM
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I've thought about doing this myself, but w/ much smaller tubing coming from the ducts.
Personally, I'd've gotten a green foam "cube" (they sell them @ walmart) pressed it onto the bumper opening (the lip itself would have made an impression onto the block) and cut away the excess to make a taper into a circular tube (of the same diameteras the tubing). Then, cover the block in suran wrap, and fiberglass it.
Personally, I'd've gotten a green foam "cube" (they sell them @ walmart) pressed it onto the bumper opening (the lip itself would have made an impression onto the block) and cut away the excess to make a taper into a circular tube (of the same diameteras the tubing). Then, cover the block in suran wrap, and fiberglass it.
03-25-03, 07:42 PM
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More pics:
I just started filling it with lightweight putty. Looks like it will take me a week or two to get it ready for the glass lay-up because of how **** I am with it. It's my baby. Yes, that is a vert aluminum hood from the junk yard and gslse wheels with autox rubber on them.
I just started filling it with lightweight putty. Looks like it will take me a week or two to get it ready for the glass lay-up because of how **** I am with it. It's my baby. Yes, that is a vert aluminum hood from the junk yard and gslse wheels with autox rubber on them.
03-25-03, 09:38 PM
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Originally posted by 88IntegraLS
It is to keep the engine bay temps down for the sake of cooler intake temps. My header is double heat wrapped and there will be a sheet aluminum heat shield between it and the intake manifold. The shield will form a boxed shaped plenum to receive the incoming air from the drivers side duct, fed by a flexible hose. Veteran road racers and hill climbers insulate their intake manifolds and shield it from the header because it is an effective way to increase the engine's volumetric efficiency (colder air is denser).
In other words, I am squeezing out all the performance of my NA engine possible without a radical port, supercharger, or turbo.
It is to keep the engine bay temps down for the sake of cooler intake temps. My header is double heat wrapped and there will be a sheet aluminum heat shield between it and the intake manifold. The shield will form a boxed shaped plenum to receive the incoming air from the drivers side duct, fed by a flexible hose. Veteran road racers and hill climbers insulate their intake manifolds and shield it from the header because it is an effective way to increase the engine's volumetric efficiency (colder air is denser).
In other words, I am squeezing out all the performance of my NA engine possible without a radical port, supercharger, or turbo.
I understand.
I'm going to start planning my own version to be done in the coming months (of the ducting/shielding - I'd rather not mess with the front fascia.)
03-26-03, 07:04 AM
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I would like to know how you are going to get the air to the intake from there. In fact, I would very much like to see the intake ducting on this car if you don't mind. This is something I want to do very badly but I cant figure out how to do it without cutting the radiator support which is something I will not do.
On a related subject, I have tried a thousand times to post a picture on here and I cannot do it. Do any of you have advice on how to do it? I browse, select a file on my computer, and when I submit the connection times out and I get a "web page unavailable" message.
On a related subject, I have tried a thousand times to post a picture on here and I cannot do it. Do any of you have advice on how to do it? I browse, select a file on my computer, and when I submit the connection times out and I get a "web page unavailable" message.
03-26-03, 08:26 AM
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I'll take pictures of the ducting and filter air box when I get them put in. That may take a few months because I am going to paint the car after finishing this. On the subject of posting pictures, I gave up on the forum and discovered that I had about 100mb of web hosting space from my isp account, so I started uploading my pics to my space there and post image links in my posts.
03-26-03, 12:42 PM
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Originally posted by skyypilot
On a related subject, I have tried a thousand times to post a picture on here and I cannot do it. Do any of you have advice on how to do it? I browse, select a file on my computer, and when I submit the connection times out and I get a "web page unavailable" message.
On a related subject, I have tried a thousand times to post a picture on here and I cannot do it. Do any of you have advice on how to do it? I browse, select a file on my computer, and when I submit the connection times out and I get a "web page unavailable" message.
Send the pic(s) to amur_@sympatico.ca and I'll put them up.
03-26-03, 10:33 PM
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Well I got out the spackle and a butter knife and had some fun pasting it on the bumper.
I hate what comes next. Sanding, filling, sanding, more filling, sanding, filling, sanding, then glassing, bondoing, sanding, bondoing, etc.
I am keeping my motivation up by dreaming of when I get to spray it with competition yellow.
I hate what comes next. Sanding, filling, sanding, more filling, sanding, filling, sanding, then glassing, bondoing, sanding, bondoing, etc.
I am keeping my motivation up by dreaming of when I get to spray it with competition yellow.
03-28-03, 10:43 PM
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Looks like I am the only one replying to my own thread at this point . . . 
After smoothing off the excess filler I remounted the bumper for some pics. Here is the final shape:
I am surprised at the look. The ducts were modelled after the FD nose but they seem to work on the FC body, too.
After smoothing off the excess filler I remounted the bumper for some pics. Here is the final shape: I am surprised at the look. The ducts were modelled after the FD nose but they seem to work on the FC body, too.