What basis are you using to estimate the 180+Mph?Jess said:Group
After the next mod the 69 War Horse will be able to do 180 mph plus if I can keep it on the ground. Besides tires and rear sway bar what would be your suggestions to keep it on the ground. Remember it is a Coupe.
The theoritical equation works out to about 178-180Jess said:Well lets start with 5500 rpm, 28 inch tall tires, 3.73 rear gears, final drive of .63, and a whole lot of horse power???
I beg to differ with you. According to Stan Weiss's website http://users.erols.com/srweiss/dodgestang said:The theoritical equation works out to about 178-180
However, to properly align expectations the car will never see that speed because of tire friction, wind drag, etc....top speed will be sub 140 IMO. Another thing to remember is the OD gear in trannys are rarely (if ever) designed to allow the car to acheive 5500 RPM while in them. The car's top theoricial speed is best calculated using the 1:1 tranny ratio since in a race you would not be using OD.
Here is a theoretical speed graph I made for my car so I could have an idea of speed based on RPM since the speedo hasn't been hooked up. If I stepped up to a 28 inch tire from a 25.5 I would have very similar numbers to yours. While no one has yet to pass the car 5000 in OD feels extremely unsafe because of lift and I know I am not going anywhere close to what the theory says I should be (I would guess sub 110). So to answer the core question at higher speeds and air damn/spoiler on the front will help you prevent lift (until a point) I see little benefits in side skirts.
That is the problem right now T/A Redials 255 x 60 x 15 on the rear. Good run around town tire. According to their book they are 27.5. They are rated at 90-100 top speed. Tires are a main issue. Brains are another issue. The 69 has an ocean for a wheel well after you flatten the seams.dodgestang said:Hey more power to you on it.
Out of curiosity what street tire are you running that is 27.5?
The closest I can find is a 255 50 17 at 27.1....so I upped the sidewall to 55 for calculation