Mojave Mile - Land speed racing - April 10th
#21
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From: Orange County, CA
but a STOCK BODIED camaro has been over 200mph plenty of times. There is a Camaro going to 270-280mph and all it has is a front splitter and rear diffuser. there is a trans am that has gone over 300mph with the stock frame and body, but custom bumpers/diffusers/side skirts/ etc.
Soo.... the aerodynamics of the car are not going to be my issue. Its going to be getting the gear ratio VS. RPM VS. tire size to equal 200mph. But according to the math with a 3.50 rear gear ratio, a .74 5th gear trans ratio, and 305/35/18 tires @ 6700 RPM = 203mph "mechanical" speed. this doesnt account for wind drag
my final obstacle will be overcoming the drag coefficent which is what will slow down the car and keep me from reaching my Mechanical top speed. so I need to make enough power to overcome the drag. Coming from guys who actually race in the mile, i need about 800rwhp to overcome the drag.
fyi a 4th gen camaro has a drag coeffiecient of apx .34Cd and a frontal area of apx 7.48 sq/ft. At 200mph, the calculated horsepower loss is 135.6hp. So it takes 135.6 hp just to drive through the air. so assuming im at 800rwhp and im left with 664.4 rwhp to accelerate to 200mph in 5,280 feet, its just a matter of acceleration rate (velocity). Given enough didstance, IT WILL do 200, i just hope it does it in one mile.
maybe someone can figure out the velocity (feet traveled per second) of my car using 664.4rwhp into the equation
#22
Alright bro, unless your going to actually "setup" your camaro for land speed racing and have a good pit crew I don't see it happening on your first trip. Also starting a thread a starting out saying I have no idea what I'm doing, doesn't support your predictions. I know a few experienced land speed racers and have seen some of their 2.3t builds not make the 200 MPH mark first time out. Good luck, It is possible I'm not saying it can't be done but as your car sits it won't hit the 200 mph. I'm no expert I have just seen some of those 200 MPH cars and your car needs more work to get there, also some guidance from someone who's been there will get you a better chance.
#23
well thats absolutely ZERO help. But unless youve run the mile, or youre a mechanical engineer, I dont think thats a qualified statement. Of course its more than HP. You cant slap 1000hp on a suburban and expect it to go 200mph.
but a STOCK BODIED camaro has been over 200mph plenty of times. There is a Camaro going to 270-280mph and all it has is a front splitter and rear diffuser. there is a trans am that has gone over 300mph with the stock frame and body, but custom bumpers/diffusers/side skirts/ etc.
Soo.... the aerodynamics of the car are not going to be my issue. Its going to be getting the gear ratio VS. RPM VS. tire size to equal 200mph. But according to the math with a 3.50 rear gear ratio, a .74 5th gear trans ratio, and 305/35/18 tires @ 6700 RPM = 203mph "mechanical" speed. this doesnt account for wind drag
my final obstacle will be overcoming the drag coefficent which is what will slow down the car and keep me from reaching my Mechanical top speed. so I need to make enough power to overcome the drag. Coming from guys who actually race in the mile, i need about 800rwhp to overcome the drag.
fyi a 4th gen camaro has a drag coeffiecient of apx .34Cd and a frontal area of apx 7.48 sq/ft. At 200mph, the calculated horsepower loss is 135.6hp. So it takes 135.6 hp just to drive through the air. so assuming im at 800rwhp and im left with 664.4 rwhp to accelerate to 200mph in 5,280 feet, its just a matter of acceleration rate (velocity). Given enough didstance, IT WILL do 200, i just hope it does it in one mile.maybe someone can figure out the velocity (feet traveled per second) of my car using 664.4rwhp into the equation
but a STOCK BODIED camaro has been over 200mph plenty of times. There is a Camaro going to 270-280mph and all it has is a front splitter and rear diffuser. there is a trans am that has gone over 300mph with the stock frame and body, but custom bumpers/diffusers/side skirts/ etc.
Soo.... the aerodynamics of the car are not going to be my issue. Its going to be getting the gear ratio VS. RPM VS. tire size to equal 200mph. But according to the math with a 3.50 rear gear ratio, a .74 5th gear trans ratio, and 305/35/18 tires @ 6700 RPM = 203mph "mechanical" speed. this doesnt account for wind drag
my final obstacle will be overcoming the drag coefficent which is what will slow down the car and keep me from reaching my Mechanical top speed. so I need to make enough power to overcome the drag. Coming from guys who actually race in the mile, i need about 800rwhp to overcome the drag.
fyi a 4th gen camaro has a drag coeffiecient of apx .34Cd and a frontal area of apx 7.48 sq/ft. At 200mph, the calculated horsepower loss is 135.6hp. So it takes 135.6 hp just to drive through the air. so assuming im at 800rwhp and im left with 664.4 rwhp to accelerate to 200mph in 5,280 feet, its just a matter of acceleration rate (velocity). Given enough didstance, IT WILL do 200, i just hope it does it in one mile.maybe someone can figure out the velocity (feet traveled per second) of my car using 664.4rwhp into the equation
Last edited by XpEdItIoUs; 03-19-2011 at 01:34 AM.
#24
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From: Orange County, CA
Alright bro, unless your going to actually "setup" your camaro for land speed racing and have a good pit crew I don't see it happening on your first trip. Also starting a thread a starting out saying I have no idea what I'm doing, doesn't support your predictions. I know a few experienced land speed racers and have seen some of their 2.3t builds not make the 200 MPH mark first time out. Good luck, It is possible I'm not saying it can't be done but as your car sits it won't hit the 200 mph. I'm no expert I have just seen some of those 200 MPH cars and your car needs more work to get there, also some guidance from someone who's been there will get you a better chance.
#25
I know what youre saying, but it doesnt need to be that drastically different. Its going to have a different alighnment spec, its going to be twice as low, and have some sort of race gas in it. with properly balanced tires, and good valve stems, the car should be up to the task. The things I have no idea about are all the little tricks. like taping up the seams, or about the valvestems needing to be metal (never knew that before a week ago) ... things like that. youre right, odds are im not going to hit 200mph on my first pass, but id put money that ill be pretty darn close, and if I dont hit 200, i will eventually
#28
Well there are some good threads about the 200mph mark on CorvetteForum that you can find helpful. Aerodynamics have a huge part of getting there. Thats what really determines how much hp is needed and also to calculate in how much time/distance it can be achieved. 500-600hp with the right aerodynamics will get a lot of slippery cars to 200mph...maybe not within 1mi tho. 800-1000hp for a Camaro seems quite possible for 200mph within 1mi. Lowering the car to mininize air under the car (so it wont become a wing) and taping up all body gaps and seams will help. The force of cutting through air multiplies 4x north of 150mph or so (dont quote me) so it takes A LOT more hp to go 100-1200moh than 0-100mph. Good luck, hope you get there or close.
#29
josh you will likely be in the mid 180's i would say.... unfornuately i dont think you have quite enough power yet to make the 200 mark at that altitude.... i think with a bigger turbo, more boost and better fuel you can hit it easier..... maybe just better fuel could get you there
#30
At that power , to even get close you need to be able to run 10.0's in the quarter. Easy test is find a stock busa. Even a slow roll race, will show you if your close. They run about 185.....so you should be way ahead........by 5000 ft.
#31
Xped makes some great points Killer, I read your thread, and your asking for advice. everyone is giving it to you yet all you do is counter their advice.
Personally, the drag is whats going to hurt you. make sure you tape up every line, cover the headlights, cover the fogs, Maybe even cover the spoiler so the wind does not go under, rather over it. Get a splitter.
the power is there, I would suggest you focus on aero more than anything.
Im no expert by any means, but thats my $.02
Personally, the drag is whats going to hurt you. make sure you tape up every line, cover the headlights, cover the fogs, Maybe even cover the spoiler so the wind does not go under, rather over it. Get a splitter.
the power is there, I would suggest you focus on aero more than anything.
Im no expert by any means, but thats my $.02
#32
#33
http://jalopnik.com/#!5127348/hennes...b+ft-of-torque
Last edited by ZexGX; 03-24-2011 at 09:41 PM.
#34
^ That car runs anywhere from 10.6 to 11.0 in 1/4 mile, depending on the driver. For anyone curious, see below:
http://jalopnik.com/#!5127348/hennes...b+ft-of-torque
http://jalopnik.com/#!5127348/hennes...b+ft-of-torque
#37
Well I'm officially going to the mojave mile! http://www.mojavemile.com
Is anybody else going to go? It looks like it should be very fun! all the rules are on the website
Is anybody else going to go? It looks like it should be very fun! all the rules are on the website
Last edited by loloone; 04-08-2011 at 11:09 PM.
#38
I've read on numerous occasions that the rear bumper on 4th Gens are really un-aerodynamic (especially Camaros). I've read that they're practically a big parachute that scoops air from underneath the car. Some have punched holes to alleviate the high pressure scooped inside while others have built a plate from the lower bumper down to the body behind the wheels.
If I were to go high-speed running with my F-Body that's where I'd look for some aero help, at least beyond taping up all the body seams and unnecessary openings on the front of the car.
If I were to go high-speed running with my F-Body that's where I'd look for some aero help, at least beyond taping up all the body seams and unnecessary openings on the front of the car.
Last edited by loloone; 04-08-2011 at 10:45 PM.