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minirally's Avatar
 
Join Date: Jul 2010
Posts: 28
Garage
porsche 930 weak spark??

hello guys,really enjoy the forum. now,i have a problem!

last week i go on the track with the 930,all great until i began to be low on gas,so i return to the pit slowly, for not melting somewhat.

i put new race gas,but after that,car is very difficult to start,and not working on all cylinders for sure.

i removed spark plug,and three of them are fouling,i clean them,and after that it still very hard to stard,just like a fouling engine,but finished to start after very long starting.

after,several check, i see the spark are very weak,maybe my cause of fouling plugs.

my question is,what it happens,car run like the hell before running out of gas? i have compression,is there a protection device on this car?

thanks all

ps sorry for my poor english,i,m from quebec,canada
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porsche 930 1978
ferrari 348 1990
lotus esprit turbo 1985
lotus europa 1969
Old 07-18-2010, 03:42 AM
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i finally found problem, the warm up regulators faulty, they dump lot of fuel in the intake! happy,it is not the engine!!
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porsche 930 1978
ferrari 348 1990
lotus esprit turbo 1985
lotus europa 1969
Old 07-18-2010, 06:19 AM
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Location: England
Posts: 301
Glad you found the problem.

That's one mean-looking 930!
Old 07-18-2010, 08:50 AM
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Location: Evansville IN
Posts: 261
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Gorgeous car!
Old 07-18-2010, 10:27 AM
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thanks guys, run like new now.... i took the warm up from my old 2,7 engine (from the white 911)and hopefully,it is the same number stamp on it !
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porsche 930 1978
ferrari 348 1990
lotus esprit turbo 1985
lotus europa 1969
Old 07-20-2010, 05:08 PM
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Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
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Was this 2.7L engine normally aspirated? If so the WUR does not have a boost enrichment circuit and should not be used.

Beautiful car!
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 07-20-2010, 07:11 PM
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thanks Brian, it is the same wur,same number stamped, with one small vaccum and the large one for the boost from the throttle body.
it is ok? you think.
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porsche 930 1978
ferrari 348 1990
lotus esprit turbo 1985
lotus europa 1969
Old 07-21-2010, 01:54 AM
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