| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 565.1 | Formulas | MILKWY::SMCCORMICK | Hurricane Scott | Wed Dec 12 1990 06:36 | 15 |
| 565.2 | Best to just use a gauge | TROA02::DPURDIE | | Wed Dec 12 1990 08:23 | 4 |
| 565.3 | Just for the hell of it, that's all. 8^) | MILKWY::SMCCORMICK | Hurricane Scott | Wed Dec 12 1990 08:39 | 9 |
| 565.4 | Its been a long time | TROA02::DPURDIE | | Wed Dec 12 1990 10:11 | 12 |
| 565.5 | cr formula | CXCAD::FRASER | | Wed Dec 12 1990 11:16 | 17 |
| 565.6 | This is what you want | WHYVAX::FISHER | Building a faster pig | Wed Dec 12 1990 16:34 | 46 |
| 565.7 | Why are you making it complicated | TROA02::DPURDIE | | Wed Dec 12 1990 16:48 | 9 |
| 565.8 | There are entire BOOKS on the subject | ENGINE::MICHAEL | | Thu Dec 13 1990 09:12 | 15 |
| 565.9 | Your cyl pressure may vary | WHYVAX::FISHER | Building a faster pig | Thu Dec 13 1990 12:03 | 16 |
| 565.10 | Something doesn't compute! | USHS05::HARDMAN | ThunderTrucks of Texas | Thu Dec 13 1990 12:48 | 7 |
| 565.11 | Through in temperature | TROA02::DPURDIE | | Thu Dec 13 1990 14:07 | 7 |
| 565.12 | re .10, Harry | HEYYOU::ZARLENGA | lickety split | Sun Dec 16 1990 18:37 | 14 |
| 565.13 | One more time | TROA02::DPURDIE | | Mon Dec 17 1990 07:43 | 19 |
| 565.14 | Diesels work because compression => heat | ENGINE::MICHAEL | | Mon Dec 17 1990 10:15 | 10 |
| 565.15 | | HEYYOU::ZARLENGA | in a crowded parking lot?! | Tue Dec 18 1990 08:03 | 4 |
| 565.16 | -273 c | DSM::HOLBROOK | Dave Holbrook 297-2356 | Fri Dec 21 1990 13:31 | 2 |
| 565.17 | ABSOLUTELY | VANTEN::MITCHELLD | ............<42`-`o> | Sun Dec 23 1990 17:17 | 2 |
| 565.18 | Is this possible?? | IAMOK::FISHER | | Fri Jul 09 1993 12:28 | 13 |
| 565.19 | | STARCH::HAGERMAN | Flames to /dev/null | Fri Jul 09 1993 13:02 | 34 |
| 565.20 | | HDLITE::ZARLENGA | Michael Zarlenga, Alpha P/PEG | Sun Jul 11 1993 12:31 | 4 |
| 565.21 | cam math | ALLVAX::DUNTON | Frankly my dear..... | Tue May 03 1994 11:05 | 9 |
| 565.22 | Usually done with dial indicator and degree wheel | LEDS::LEWICKE | chinese restaurants and animal hospitals | Tue May 03 1994 11:09 | 8 |
| 565.23 | anyone | BIGQ::HAWKE | | Wed Jan 29 1997 14:35 | 4 |
| how can I figure speed based on final drive ratio and indicated
rpms ?
Dean
|
| 565.24 | a few more | RHETT::BURDEN | A bear in his natural habitat | Wed Jan 29 1997 17:06 | 4 |
| You'll need gear ratio for the gear you're in and the rolling diameter of your
driven tires as well. I have the formula somewhere in a BASIC program...
Dave
|
| 565.25 | speed based on driveshaft rpm | CSLALL::NASEAM::READIO | A Smith & Wesson beats four aces, Tow trucks beat Chapman Locks | Wed Jan 29 1997 17:57 | 5 |
| It's in here somewhere but....
mph = (tire radius) / ( RPM )
(___________) / (____________)
( 168 )/ ( rear ratio)
|
| 565.26 | | BIGQ::HAWKE | | Thu Jan 30 1997 08:10 | 17 |
| <<< VMSNET::DSA120:[NOTESFILES]CARBUFFS.NOTE;32767 >>>
-< Carbuffs >-
================================================================================
Note 565.25 Mechanical Terms/Definitions/Formulas 25 of 25
CSLALL::NASEAM::READIO "A Smith & Wesson beats four " 5 lines 29-JAN-1997 17:57
-< speed based on driveshaft rpm >-
--------------------------------------------------------------------------------
It's in here somewhere but....
mph = (tire radius) / ( RPM )
(___________) / (____________)
( 168 )/ ( rear ratio) uh oh its FWD :-)
whats the 168 represent ?
Dean
|
| 565.27 | MPH at certain engine RPM | VMSNET::M_MACIOLEK | Four54 Camaro/Only way to fly | Thu Jan 30 1997 09:39 | 13 |
|
63360
TIRE RPM = -----
(tire circumference)
This gets tire revolutions per mile. (63360 inches in a mile)
Engine RPM * 60
MPH = ----------------------------------------------
(final gear ratio) (tire revolutions per mile)
MadMike
|
| 565.28 | Careful, you'll miscalculate | CSLALL::NASEAM::READIO | A Smith & Wesson beats four aces, Tow trucks beat Chapman Locks | Thu Jan 30 1997 13:57 | 25 |
| ><<< Note 565.27 by VMSNET::M_MACIOLEK "Four54 Camaro/Only way to fly" >>>
> -< MPH at certain engine RPM >-
>
>
> 63360
> TIRE RPM = -----
> (tire circumference)
>
> This gets tire revolutions per mile. (63360 inches in a mile)
>
> Engine RPM * 60
> MPH = ----------------------------------------------
> (final gear ratio) (tire revolutions per mile)
>
>
> MadMike
Mike, this only works if you're in direct drive with a manual transmission
or a locking torque converter, that's why I specified "driveshaft rpm" in
my note.
If you're looking at the tach with your Turbo-hydramatic 350 or
Turbo-hydramatic 400 trans, you're way off the mark due to torque converter
losses.
|
| 565.29 | gear ratio adjustment | STARCH::HAGERMAN | Flames to /dev/null | Thu Jan 30 1997 14:24 | 11 |
| Most front-wheel-drive cars don't have a direct ratio anyway--they're
all indirect and top gear is an overdrive ratio. Traditional
three- and four-speeds usually have top gear as direct, but five-speeds
may have 4th as direct and 5th as an overdrive. You can often find
out the ratios in the sales brochures.
If top gear is 0.9:1 (an overdrive ratio), then the speed from
the formulas will be higher. To find out how much higher, divide
the answer you got by 0.9.
If top gear is 1.1:1 (a reduction ratio), divide by 1.1.
|