HP/Weight calculations?
HP/Weight calculations? Anyone know of where i can calculate estimated 1/4 mile times or theoretical HP gains from weight savings?
Last edited by NitrousDirect; May 16, 2006 at 12:12 AM.
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
Charlie
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.
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.
8 second mod
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From: East Side Performance! mASShole
Originally Posted by CAT3
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.
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.
anyway, thats good to know!
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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
Robert