How fast will your street 928 go?
11-28-2006, 03:22 PM
#33
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Originally Posted by ZEUS+
Shifted into 4th at 140, ran out of road at 150 or so.
oh well... guess it must be my not so great math skills in the kph conversion. guess redline in fourth is a bit over the speed limit.
Last edited by animal8526; 11-28-2006 at 03:44 PM.
11-28-2006, 05:48 PM
#34
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Someone was driving my '86.5 and told me that it shifted into 4th at an indicated 135. Of course I wouldn't have any way to know for certain that it is so. But dat's wot he sayid.
11-28-2006, 06:23 PM
#35
Originally Posted by Hughett
I've heard that insurance companies sometimes surf the web looking for info like you ask for. I never go over the speed limit. In fact, to be safe in a RED 928, you should drive 5mph UNDER the limit. Other colors may be able to "stealth" at posted speeds. Camrys can often get away with 10% over. Then ago, 928s are special.
Driver's Ed or track days are great to try your car.
Harvey
Driver's Ed or track days are great to try your car.
Harvey
11-28-2006, 06:33 PM
#37
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140 in 4th, put into 5th, went to 145, then decided that it might be time to use a little "common sense". Never went that fast again because there is nowhere to drive safely like that around here.
11-28-2006, 06:57 PM
#39
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I believe the 87 s4 could hit 165 in stock form, but with the Murph kit I wonder what it would top out at? Too chicken to find out myself.....
11-28-2006, 07:15 PM
#41
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I believe the 87 s4 could hit 165 in stock form
My 81 s was OK at that speed and felt like it had more (as they say).
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I've heard that insurance companies sometimes surf the web looking for info like.......
I wish them lots of luck to trace who I really am...
Marton
11-28-2006, 07:23 PM
#42
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Originally Posted by Kevin Michael
I believe the 87 s4 could hit 165 in stock form,...
Keep in mind Kibort's record setter (with 2.20 gearing) had (I think) manually controlled flaps giving it better aero, no side mirrors, "GT-like" cams, and a "special" LH computer.
Rich
11-28-2006, 07:33 PM
#43
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Given the following.."For example, at 85 degrees F, 30.14 Inches Hg (mercury) barometer reading, 40% relative humidity and 5000 feet altitude, the engine only produces about 81.1% of the rated horsepower. " Rich you may have only had 240 RWHP !!
11-28-2006, 07:41 PM
#44
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Originally Posted by Jim bailey - 928 International
Given the following.."For example, at 85 degrees F, 30.14 Inches Hg (mercury) barometer reading, 40% relative humidity and 5000 feet altitude, the engine only produces about 81.1% of the rated horsepower. " Rich you may have only had 240 RWHP !!
Probably true.... Would be great to have a portable dyno show up at the ORR to see what everyone is actually putting down on race day. Might surprise a lot of people.Rich
11-28-2006, 07:48 PM
#45
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Yes the altitude power loss is huge for a normally aspirated engine which is why Turbos/superchargers cars can do so well IF they are set up to run at altitude !