 Speed vs RPM, How fast should I be going ? |
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| jim_hoyland |
 Apr 26 2014, 05:59 PM
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#1
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Get that VIN ?  Group: Members Posts: 9,467 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California 
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What's the speed of a typical 914 in 5th gear at 3,000 rpm ? My speedo have been under reporting for a while.
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| jim_hoyland |
Apr 26 2014, 06:34 PM
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#2
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Get that VIN ? Group: Members Posts: 9,467 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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I'm running 16" wheels. My iPad speedo app say 3,000 rpm in 5th is 65 mph. Just wanted to see if that's common...
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| struckn |
Apr 26 2014, 07:01 PM
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#3
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Senior Member Group: Members Posts: 1,069 Joined: 9-November 11 From: South Central York Pennsyvania Member No.: 13,764 Region Association: MidAtlantic Region |
QUOTE(jim_hoyland @ Apr 26 2014, 04:34 PM)  I'm running 16" wheels. My iPad speedo app say 3,000 rpm in 5th is 65 mph. Just wanted to see if that's common... If you have, or can barrow a GPS, you can read the MPH at 3000 in fifth. (IMG:style_emoticons/default/bye1.gif) |
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| jim_hoyland |
Apr 26 2014, 07:06 PM
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#4
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Get that VIN ? Group: Members Posts: 9,467 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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QUOTE(struckn @ Apr 26 2014, 06:01 PM) QUOTE(jim_hoyland @ Apr 26 2014, 04:34 PM) I'm running 16" wheels. My iPad speedo app say 3,000 rpm in 5th is 65 mph. Just wanted to see if that's common... If you have, or can barrow a GPS, you can read the MPH at 3000 in fifth. (IMG:style_emoticons/default/bye1.gif) I did. My question is whether 65 mph in 5th @ 3,000 rpm is normal |
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| mepstein |
Apr 26 2014, 07:27 PM
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#5
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914-6 GT in waiting Group: Members Posts: 19,578 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(jim_hoyland @ Apr 26 2014, 09:06 PM) QUOTE(struckn @ Apr 26 2014, 06:01 PM) QUOTE(jim_hoyland @ Apr 26 2014, 04:34 PM) I'm running 16" wheels. My iPad speedo app say 3,000 rpm in 5th is 65 mph. Just wanted to see if that's common... If you have, or can barrow a GPS, you can read the MPH at 3000 in fifth. (IMG:style_emoticons/default/bye1.gif) I did. My question is whether 65 mph in 5th @ 3,000 rpm is normal Mine was around 75-80 (GPS) on my way to Hershey at 3K but my spedo was reporting about 4 under. The tires are skinny but tall. |
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Posts in this topic
jim_hoyland Speed vs RPM Apr 26 2014, 05:59 PM
914itis I would say 60-65 mph
My speedo is also 10 mph adv... Apr 26 2014, 06:08 PM Tom Jim,
That would depend on your wheel/ tire co... Apr 26 2014, 06:15 PM Hine62 My speedometer is also off because of tire size. I... Apr 27 2014, 05:53 AM toadman If the tires and transmission on your car are comp... Apr 27 2014, 08:11 AM jim_hoyland Just checked my manual. Says 3,000 rpm in 5th = 70... Apr 27 2014, 11:11 AM r_towle 165r15 are 25.4" in, diameter
205 60 r 16 are... Apr 27 2014, 11:47 AM jim_hoyland Does the car go faster with smaller tires, given t... Apr 27 2014, 04:01 PM
r_towle
Does the car go faster with smaller tires, given ... Apr 27 2014, 04:11 PM Big Len No, you would be going slower.
Try this - http://... Apr 27 2014, 04:07 PM pvollma
What's the speed of a typical 914 in 5th gear... Apr 28 2014, 07:34 AM jim_hoyland
[quote name='jim_hoyland' post='2029780' date='Ap... Apr 28 2014, 06:19 PM Elliot Cannon It doesn't matter what size tire you use or wh... Apr 28 2014, 10:56 AM ndfrigi Drove my 75 1.8 F.I. last weekend with 185x65x15 t... Apr 28 2014, 11:05 PM dlkawashima
Drove my 75 1.8 F.I. last weekend with 185x65x15 ... Apr 28 2014, 11:53 PM ndfrigi
Drove my 75 1.8 F.I. last weekend with 185x65x15... Apr 28 2014, 11:56 PM |
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