stump_breaker Posted October 18, 2007 Report Share Posted October 18, 2007 200 mph in your Shelby with 29" tires, a .65 OD gear (I don't recall the actual OD ratio) with 4.10 gears, your engine will be at 6175 RPM's and your driveshaft will be turning 9500 rpm's. This is on a standard. An automatic will be higher due to slippage. So with a good two piece shaft and some extra power on tap and assuming your Shelby for whatever reason never reaches it's terminal velocity, 200 mph is possible. I don't know why I posted this. Just PW'ing I guess. :D Link to comment Share on other sites More sharing options...
autoplay Posted October 18, 2007 Report Share Posted October 18, 2007 Would,'t that cause excessive damage to the hood scoop? Link to comment Share on other sites More sharing options...
stump_breaker Posted October 18, 2007 Author Report Share Posted October 18, 2007 Would,'t that cause excessive damage to the hood scoop? Well we know it can survive a 120mph impact with a tree. I don't know about a 200 mph wind though. Link to comment Share on other sites More sharing options...
Michael Morris Posted October 18, 2007 Report Share Posted October 18, 2007 200 mph in your Shelby with 29" tires, a .65 OD gear (I don't recall the actual OD ratio) with 4.10 gears, your engine will be at 6175 RPM's and your driveshaft will be turning 9500 rpm's. This is on a standard. An automatic will be higher due to slippage. So with a good two piece shaft and some extra power on tap and assuming your Shelby for whatever reason never reaches it's terminal velocity, 200 mph is possible. I don't know why I posted this. Just PW'ing I guess. :D can you rework all the numbers and add whitewall tires and a coontail to the antenna? michael morris Link to comment Share on other sites More sharing options...
stump_breaker Posted October 18, 2007 Author Report Share Posted October 18, 2007 and a coontail to the antenna? michael morris You got one too huh? Any fuzzy dice? Link to comment Share on other sites More sharing options...
Michael Morris Posted October 18, 2007 Report Share Posted October 18, 2007 You got one too huh? Any fuzzy dice? standard equip in GA along with curb finders. michael morris Link to comment Share on other sites More sharing options...
shelbydream1 Posted October 20, 2007 Report Share Posted October 20, 2007 200 mph in your Shelby with 29" tires, a .65 OD gear (I don't recall the actual OD ratio) with 4.10 gears, your engine will be at 6175 RPM's and your driveshaft will be turning 9500 rpm's. This is on a standard. An automatic will be higher due to slippage. So with a good two piece shaft and some extra power on tap and assuming your Shelby for whatever reason never reaches it's terminal velocity, 200 mph is possible. I don't know why I posted this. Just PW'ing I guess. :D Better hope it's not raining-remember the stripes in the 80mph rain? Link to comment Share on other sites More sharing options...
clawsonbob Posted October 20, 2007 Report Share Posted October 20, 2007 200 mph in your Shelby with 29" tires, a .65 OD gear (I don't recall the actual OD ratio) with 4.10 gears, your engine will be at 6175 RPM's and your driveshaft will be turning 9500 rpm's. This is on a standard. An automatic will be higher due to slippage. So with a good two piece shaft and some extra power on tap and assuming your Shelby for whatever reason never reaches it's terminal velocity, 200 mph is possible. I don't know why I posted this. Just PW'ing I guess. :D good work Stump Breaker....to continue the math excercise, I was wonderin how much more HP we would need for 200mph Using the following Aero Drag = DA = 1/2 * rho * V2 * Af * Cd Rolling Drag = DR = fr * W fr = fo + 3.24 * fs * ( V * (60/88) /100)2.5 rho = 0.00236 * (Pr/ 29.92) * ( 519 / (460 + T)) HP = D * V / 550 = (DA + DR) * V / 550 Before getting to far along, let me define the new terms used: rho is the air density in slugs per newton-meter fr is the rolling coefficient Cd is the dimensionless drag coefficient AND assuming our CD is approx the same as the GT500 of .38 I created the following data table Looks like we need about 1,100 Horsey-powers to hit 200 mph....without stripe-flap or hood-scoop lift induced drag Link to comment Share on other sites More sharing options...
stump_breaker Posted October 20, 2007 Author Report Share Posted October 20, 2007 good work Stump Breaker....to continue the math excercise, I was wonderin how much more HP we would need for 200mph Using the following Aero Drag = DA = 1/2 * rho * V2 * Af * Cd Rolling Drag = DR = fr * W fr = fo + 3.24 * fs * ( V * (60/88) /100)2.5 rho = 0.00236 * (Pr/ 29.92) * ( 519 / (460 + T)) HP = D * V / 550 = (DA + DR) * V / 550 Before getting to far along, let me define the new terms used: rho is the air density in slugs per newton-meter fr is the rolling coefficient Cd is the dimensionless drag coefficient AND assuming our CD is approx the same as the GT500 of .38 I created the following data table Looks like we need about 1,100 Horsey-powers to hit 200 mph....without stripe-flap or hood-scoop lift induced drag I was wondering how to figue that out but it is beyond my knowledge. So 1100 HP is the new goal. :D Link to comment Share on other sites More sharing options...
clawsonbob Posted October 20, 2007 Report Share Posted October 20, 2007 I was wondering how to figue that out but it is beyond my knowledge. So 1100 HP is the new goal. :D well...thats the goal for the white cars....as everyone knows the black sgt's are inherently slower, I'd figure about 1250 hp for the black cars Link to comment Share on other sites More sharing options...
autoplay Posted October 20, 2007 Report Share Posted October 20, 2007 Lets not forget......the faster the cars,the more friction/heat will be generated. Possibly that can be used as a fix for the hood scoops. It heats the hood-scoop to "X" degrees,and the benefit of such is,it molds itself more uniformly,to the hood. To keep hood scoop properly aligned and molded.....the car must be driven at speeds in excess of 180 MPH,on a weekly basis Link to comment Share on other sites More sharing options...
clawsonbob Posted October 20, 2007 Report Share Posted October 20, 2007 Lets not forget......the faster the cars,the more friction/heat will be generated. Possibly that can be used as a fix for the hood scoops. It heats the hood-scoop to "X" degrees,and the benefit of such is,it molds itself more uniformly,to the hood. To keep hood scoop properly aligned and molded.....the car must be driven at speeds in excess of 180 MPH,on a weekly basis Autoplay....you maybe onto something here that would explain why the hood scoop fix is so elusive...its caused by the rpm/speed limiter in the ECU !! Link to comment Share on other sites More sharing options...
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