Anyone know of where i can calculate estimated 1/4 mile times or theoretical HP gains from weight savings?

 

Try a google search for horsepower calculator, there's lots of them out there. How accurate, who knows...

 

not looking for a hp calculator.. thank you though.. got lots of those

 

Just use the calculator backwards....put in your cars weight as it was raced with ET and MPH, write down the ~HP, then go back using the same ET & MPH change weight to reflect the reduction, and see what the new ~HP readings are, thats the difference or effect of weight reduction (or HP Gain) and then you take that new hp gained, using reduced weight and you can estimate the new ET.

Charlie

 

Somebody should read a little closer <----
lol

 

From just the minute or two I messed with a calculator, I came up with essentiall 16HP per 100lbs. ( I went in 200 lb increments to calc from 3600, 3400, 3200, then 3000 and was consistent).
Effect is as such, maintain weight as the constant:
POUNDS/MPH/HP
3400 127 544
3200 129 544
3000 132 544

Or if you want to see effect on HP maintaining:
3400 127 544
3400 129 576
3400 131 608

See the trend? Its just a guesstimate.

 

your so smart. lol
anyway, thats good to know!

 

More like bored and that was something I was looking at before

 

 

100lb = 0.1s /1.1mph

 

For time wise, thats about right...

 

I have the hp to weight vs ET equation, however, I can't figure out how to get it posted correctly. It was developed by Chrysler's drag racing program in the 70's. You can find it on page 112 of "How to Install Nitrous Oxide", by Joe Pettitt.
Robert