Landracing Forum

Tech Information => Aerodynamics => Topic started by: DDYTDY on August 03, 2026, 02:34:19 PM

Title: 1989 Caprice Wagon limits
Post by: DDYTDY on August 03, 2026, 02:34:19 PM
Hello

I've been running my wagon up at Loring up to 175+ and want to take it further.  I'm concerned that I'm approaching speeds where blow over is a possibility.  I'd like to stay in Gas Coupe class.  Car is raked, roof rack is gone.....  (it didn't like going over 170)

I believe my combo will have the power to exceed 200mph but I'm not so sure its a good idea to explore that.  Any tips on doing so safely?

TIA,
Ray 

(https://scontent-bos5-1.xx.fbcdn.net/v/t39.30808-6/752488691_10168861249266679_7713532710291442764_n.jpg?stp=dst-jpg_tt6&cstp=mx2972x1030&ctp=s2972x1030&_nc_cat=107&ccb=1-7&_nc_sid=cc71e4&_nc_ohc=4nPB3ImP76wQ7kNvwGd7hla&_nc_oc=Adpcn5QK6omaRYUY44XN3cjNNmmba7PRIsMNQoOcq1X8T2k9w545LEKRaOwgiRui3VFSwbT4nkmzdjFG7JSosKde&_nc_zt=23&_nc_ht=scontent-bos5-1.xx&_nc_gid=udDdyVzea8lQYp1dxGOESA&_nc_ss=7b2a8&oh=00_AQGrNwoLCxdmdy0L7VdowqD0FpgZHWteSKtzkFX_SrnYEg&oe=6A76F226)
Title: Re: 1989 Caprice Wagon limits
Post by: rockracer on August 04, 2026, 02:55:49 PM
Maybe some sort of aluminum fairing under the front bumper and angle it forward of the bumper.
Title: Re: 1989 Caprice Wagon limits
Post by: DDYTDY on August 05, 2026, 06:20:33 AM
Gas Coupe so I need to keep in completely under the bumper but this is the direction I'm going in. 

I've been moving up my speed slowly over many passes.  Will my car give signs as I approach the limits or will it be sudden, car is ok, car is not.....
Title: Re: 1989 Caprice Wagon limits
Post by: tallguy on August 05, 2026, 03:19:30 PM
Quote from: DDYTDY on August 05, 2026, 06:20:33 AMGas Coupe so I need to keep in completely under the bumper but this is the direction I'm going in. 

I've been moving up my speed slowly over many passes.  Will my car give signs as I approach the limits or will it be sudden, car is ok, car is not.....

You could use photography to determine whether the front of the car rises (and how much) at high speeds.

If you have plenty of horsepower, you could add ballast near the front of the vehicle.
Title: Re: 1989 Caprice Wagon limits
Post by: DDYTDY on August 06, 2026, 05:46:05 AM
On C16 I should be able to crank the boost up enough to overcome any added weight.  Trying to get my aerospace engineer Daughter on board to take pictures and drive. She's interested but career and her daughter have her spread pretty thin.