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| Geezer914 |
Jul 20 2022, 05:31 AM
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#1
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Geezer914 ![]() ![]() ![]() ![]() Group: Members Posts: 2,292 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States
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What is the optimum rpm range for cruising around town or on the highway at 70 mph?
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| barefoot |
Jul 25 2022, 08:19 AM
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,512 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
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With my 235-55 ZR17's (27"OD) I'm running 3100 RPM at 70 mph.
Interesting that the speedo reads consistent with my GPS even though these tires are O/S compared to stock OEM . Don't know what's in my tranny however. |
| Jamie |
Jul 25 2022, 09:30 AM
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,206 Joined: 13-October 04 From: Georgetown,KY Member No.: 2,939 Region Association: South East States
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With my 235-55 ZR17's (27"OD) I'm running 3100 RPM at 70 mph. Interesting that the speedo reads consistent with my GPS even though these tires are O/S compared to stock OEM . Don't know what's in my tranny however. I've been running Michelin 205-65-15's on stock steel 5 1/2"rims for several years, and have cross referenced my speedo vs. GPS and have about a 2 MPH variation at 70MPH. I've wondered how accurate the GPS readings are, as my tire diameter is very close to stock tire diameter. |
Geezer914 Optimum rpm range around town and cruising around 70mph? Jul 20 2022, 05:31 AM
930cabman
What is the optimum rpm range for cruising around... Jul 20 2022, 05:51 AM
BeatNavy For what purpose? Engine longevity/cooling, momen... Jul 20 2022, 05:57 AM
GregAmy Chris Foley told me the same: use revs 3k or above... Jul 20 2022, 06:25 AM
emerygt350 My stock 2.0 definitely likes 3k. At 60 in fifth ... Jul 20 2022, 06:32 AM
DRPHIL914
My stock 2.0 definitely likes 3k. At 60 in fifth... Jul 20 2022, 07:37 AM
VaccaRabite Yup. The rule of thumb is that 70mph at 3K rpm is... Jul 20 2022, 08:42 AM
mgphoto Biggest factor on these little cars for cruising R... Jul 20 2022, 09:26 AM
Optimusglen Shoot... I'm pushing 4k in my 6 at 70-75ish (I... Jul 20 2022, 10:38 AM
VaccaRabite
Shoot... I'm pushing 4k in my 6 at 70-75ish (... Jul 20 2022, 11:47 AM
DRPHIL914
Shoot... I'm pushing 4k in my 6 at 70-75ish ... Jul 20 2022, 12:43 PM
Dr Evil
Shoot... I'm pushing 4k in my 6 at 70-75ish ... Jul 21 2022, 10:08 AM
Optimusglen
Shoot... I'm pushing 4k in my 6 at 70-75ish ... Jul 21 2022, 02:00 PM
VaccaRabite
[quote name='VaccaRabite' post='3016656' date='Ju... Jul 22 2022, 10:36 AM
Optimusglen
You have to have different gearing as Mike note... Jul 25 2022, 02:34 PM
Cairo94507 I think I am at about 2,600 RPM at 70 MPH; I am ru... Jul 20 2022, 12:19 PM
windforfun I prefer 3K rpm or slightly more for general respo... Jul 20 2022, 02:48 PM
emerygt350 I run 225/50r16s. My speedo is about 4 mph fast at... Jul 20 2022, 03:05 PM
Olympic 914
I run 225/50r16s. My speedo is about 4 mph fast a... Jul 21 2022, 06:56 AM
wonkipop
I run 225/50r16s. My speedo is about 4 mph fast ... Jul 21 2022, 07:18 AM
wonkipop near enough around 3K at 70mph in 5.
correct profi... Jul 20 2022, 05:02 PM
Lockwodo Has anyone come up with an electric fan arrangemen... Jul 20 2022, 05:45 PM
emerygt350 I doubt an electric would be useful. The actual m... Jul 20 2022, 08:10 PM
wonkipop
I doubt an electric would be useful. The actual ... Jul 21 2022, 01:26 AM
mlindner If any time applying load, I down shift so RPM is ... Jul 21 2022, 08:53 AM
emerygt350 You would think so... But it is definitely reading... Jul 21 2022, 05:18 PM![]() ![]() |
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