 Car feels faster than it is and interesting loss of power in higher RPM, Went and did a dyno run to see what my car produces. |
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| Michael N |
 Oct 31 2012, 03:10 PM
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Certifiable  Group: Members Posts: 1,432 Joined: 6-June 04 From: San Jose, Ca Member No.: 2,164 Region Association: Northern California  |
Today I had there afternoon off and went to a local shop to get a dyno run on my car to see what it actually produces rather than me guessing on what it produced. The local shop was running a special of 3 pulls for $85.00. The shop actually did 4 pulls and we awesome with me and my car. They are used to seeing high HP muscle cars etc but didn't pick on my car too much for being so low in HP. They did the pulls in 4th gear. The shop uses a dynapack dyno that bolts to the hubs which I like as there is no need for tied down points. Overall I am happy with the results as the engine is now 40 years old without a rebuild yet. It is a 2.4 liter 911S engine with MFI and produced 141.2 at the wheels.
What would cause the power to drop consistently between 6000 and 6500 Rpm? It drops and come back on again.   |
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| brant |
Oct 31 2012, 03:16 PM
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914 Wizard Group: Members Posts: 12,167 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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did they run an Air fuel ratio while on the dyno?
I'm guessing your AF ratio might be contributing to the power curve your asking about |
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Posts in this topic
Michael N Car feels faster than it is and interesting loss of power in higher RPM Oct 31 2012, 03:10 PM
Cap'n Krusty While not real common with the S pumps, there... Oct 31 2012, 04:23 PM gothspeed what kind of manifolds and what diameter are the i... Oct 31 2012, 07:21 PM
Michael N
what kind of manifolds and what diameter are the ... Nov 1 2012, 11:15 AM gothspeed Here are some dyno graphs from various 911 Carrera... Nov 1 2012, 01:54 PM messix if you are using carbs it could be a harmonic stan... Nov 1 2012, 09:52 PM brant jetting... (using old fashioned language)
worn 3d... Nov 2 2012, 08:13 AM charliew Put a af sniffer in the tail pipe and don't as... Nov 2 2012, 08:25 AM gothspeed
Put a af sniffer in the tail pipe and don't a... Nov 2 2012, 08:56 AM |
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