 Optimum rpm range around town and cruising around 70mph? |
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| Geezer914 |
 Jul 20 2022, 05:31 AM
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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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| VaccaRabite |
Jul 20 2022, 08:42 AM
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#2
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En Garde! Group: Admin Posts: 13,864 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region
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Yup. The rule of thumb is that 70mph at 3K rpm is the start of 5th gear for cooling purposes. Though I have been able to cruise at 65 in 5th without issues. Usually though I'm going between 70-80mph in the 914. I measure cooling with a CHT on the #3 spark plug.
External oil cooler keeps my oil cool - i've never seen it get over 225 since I installed the cooler - and it usually stays at 215 or below. Range is really hard for me to judge. The odometer has never worked on my car, and my gas tank is wonky. It goes from full to 1/2 really fast. And then I can drive 100 miles (IE my drive back from NE Gathering last week) and it will barely move from 1/2 to 1/4. Zach |
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Posts in this topic
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 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 barefoot With my 235-55 ZR17's (27"OD) I'm ru... Jul 25 2022, 08:19 AM Jamie
With my 235-55 ZR17's (27"OD) I'm r... Jul 25 2022, 09:30 AM |
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