The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-13-2003, 01:12 AM   #1
Johngear67
The Mighty Blue Bottle
 
Join Date: Mar 2001
Location: Canada Sk
Posts: 134
how to calculate final rpm?

if i have a 30" tire, and a 200r4, with 4.86 gears,,,, what would i be at (rpms) travling at 100 kph
plus, how did u figure that out?
so i could change gears to see what happens
thank u
__________________
1967 Chevy C 10 Custom
350 780 cfm 467 lift 278 dur
ported&pollished
2400 stall 350TH
B&M shifter
175 shot of nitrious
Johngear67 is offline   Reply With Quote
Old 07-13-2003, 01:18 AM   #2
Johngear67
The Mighty Blue Bottle
 
Join Date: Mar 2001
Location: Canada Sk
Posts: 134
or 60 mph, i will do the rest.
__________________
1967 Chevy C 10 Custom
350 780 cfm 467 lift 278 dur
ported&pollished
2400 stall 350TH
B&M shifter
175 shot of nitrious
Johngear67 is offline   Reply With Quote
Old 07-13-2003, 02:21 AM   #3
70 CST 4X4
Have A Nice Day!
 
70 CST 4X4's Avatar
 
Join Date: May 2003
Location: California
Posts: 355
For a regular auto tranny @ 60MPH 3353rpm

For an overdrive tranny @ 60MPH 2286rpm

Got the info off this website.
http://www.randysringandpinion.com/calculators.shtml

Might want to plug in your own numbers and check out different combos
__________________
1970 CST K10 350/350/205
Short Bed - Fleetside
Tach-Tilt-A/C-Tow Hooks
Front & Rear Disc Brakes
Front & Rear Posi 3.73 Gears
30 Gallon Stainless Fuel Tank
SOLD 01/18 !!!!!
2007 2500 HD Classic Crew Cab LT2 4X4 Duramax LBZ

70 CST 4X4 is offline   Reply With Quote
Old 07-13-2003, 02:50 AM   #4
Nova_Cobra64
Registered User
 
Nova_Cobra64's Avatar
 
Join Date: Aug 2002
Location: Melville, SK
Posts: 1,144
Hey John, where is Sask are you from?
__________________
2004 Silverado - Beater
1969 GMC - In progress http://67-72chevytrucks.com/vboard/s...d.php?t=441683
2011 Aveo - Work commuter
2013 Crestliner Fish Hawk 1650 - The reason no work gets done on the project truck.
Nova_Cobra64 is offline   Reply With Quote
Old 07-13-2003, 11:54 AM   #5
Johngear67
The Mighty Blue Bottle
 
Join Date: Mar 2001
Location: Canada Sk
Posts: 134
hi, i am in balgonie (20 klicks east of regina)
__________________
1967 Chevy C 10 Custom
350 780 cfm 467 lift 278 dur
ported&pollished
2400 stall 350TH
B&M shifter
175 shot of nitrious
Johngear67 is offline   Reply With Quote
Old 07-13-2003, 02:22 PM   #6
Bill72BB
Thats the Hillbilly way
 
Bill72BB's Avatar
 
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,979
here is another
http://www.prestage.com/Car+Math/Gea...M/default.aspx
__________________
BILL
Torrance Calif 90504
Member DUF Club
Member Old Farts Club
72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts
tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion.


" If I knew I was going to live this long I would have taken better care of myself "
Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER....

Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen ,
Bill72BB is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:19 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com