Body Kits.... Wind Tunnels...
Thread Starter
Instructor
Joined: Aug 2004
Posts: 152
Likes: 0
From: Dallas TX
Body Kits.... Wind Tunnels...
There is a greenwood kit here, http://greenwoodvette.com/gc4.htm, and it looks decent imho. I also heard that the spare tire in the back under the rear hatch causes a slip stream, and that you can gain 3-4% performance increase by just improving aero. anyone actually tried it, or know where I could get one cheap?
Thread Starter
Instructor
Joined: Aug 2004
Posts: 152
Likes: 0
From: Dallas TX
Racer
Joined: Aug 2003
Posts: 285
Likes: 0
From: Loganville Ga
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting
This is really all you need for a c4 or c5. It also depends what year you have, my '92 has a larger line going in to the TB, 3/4" I believe and 1/2 coming out. It's been a while so I couldn't swear to that so you just need the coupling that is right for your car. If you want to make it a little neater, get some longer hose and route it around the engine bay and over the radiator shroud. Someone posted some pictures a while back, maybe try a search of the achives.
This is really all you need for a c4 or c5. It also depends what year you have, my '92 has a larger line going in to the TB, 3/4" I believe and 1/2 coming out. It's been a while so I couldn't swear to that so you just need the coupling that is right for your car. If you want to make it a little neater, get some longer hose and route it around the engine bay and over the radiator shroud. Someone posted some pictures a while back, maybe try a search of the achives.
Race Director
Joined: Aug 2003
Posts: 11,043
Likes: 3
From: San Jose Pat Tillman - American Hero
I did the TB bypass for free... Well, I did have to buy one hose clamp, so like 80 cents. All of my coolant lines were long enough to go the distance, so I didn't have to use additional tubing and splice it in. And no, you won't feel any gains at ALL. Zero. The only reason to do the mod is to make it easier in the future for you to remove your TB for cleaning, etc.
Safety Car
Joined: Feb 2000
Posts: 4,564
Likes: 110
From: Austin Texas
The kit works well. Rick Doria used the Greenwood C4R kit for Open Road Racing at speeds in excess of 250 MPH. Did the job nicely.
Of course, you'll get the usual response from those "purists" who say
to ANY body modifications on a C4, but if you want the aero it is the best one out there.
I also know that when Morrison was testing the Snake-Skinner package he was developing that the belly-pan gained him 10 MPH top-end speed with no other modifications. Aero is a fine-edged sword that can help or hurt you. Too much downforce will slow the car but it will handle like it is glued to the road. Too little downforce and it will go VERY fast but not hold the road well. Balance is the lesson here.
Of course, you'll get the usual response from those "purists" who say
to ANY body modifications on a C4, but if you want the aero it is the best one out there.I also know that when Morrison was testing the Snake-Skinner package he was developing that the belly-pan gained him 10 MPH top-end speed with no other modifications. Aero is a fine-edged sword that can help or hurt you. Too much downforce will slow the car but it will handle like it is glued to the road. Too little downforce and it will go VERY fast but not hold the road well. Balance is the lesson here.
Racer
Joined: Apr 2004
Posts: 298
Likes: 1
From: Springfield Missouri
buddy of mine had a fox-body mustang (pro car) that went 154 through the traps, and he fabbed a full belly pan and got 158.
so, areodynamics DO work. i've seen it.
but that body kit looks like hell. sorry. just my $.02... looks like a bunch of plastic stuck onto a corevette.
so, areodynamics DO work. i've seen it.
but that body kit looks like hell. sorry. just my $.02... looks like a bunch of plastic stuck onto a corevette.
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Pro
Joined: Jan 2002
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From: W.V.C. Utah
Originally Posted by purplemajesty
As far as the bypass goes, you probably won't feel any gains, but hey, its a cheap mod so why not? You can actually get the items needed for this at a local parts store for under $4.
Cheapest and best, least number of joints and connectors to leak.
