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Formerly known as Syzygy
Join Date: Mar 2008
Location: Calgary, AB
Posts: 4,420
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'84 Carrera typical problems?
Being the first year of production, is there anything inherently problematic about the 1984 Carreras when compared to the '85-'89s?
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03-19-2009, 04:52 PM
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The Puff.
Join Date: Sep 2007
Location: U.S. Navy
Posts: 1,290
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Not that I know of. You still have a 915 trans. This can be viewed as a bad thing by some. There are things you can do to make it better though. A plus is the unique oil cooler
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03-19-2009, 04:58 PM
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Whoopsies I was banned!!!
Join Date: Sep 2005
Location: Trying to Escape from FLA
Posts: 4,593
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Nope. The only thing to keep in mind is that 1984 was a long time ago. Hence any issues if any were worked out long ago. The issue is going to be that of age. Things don't last forever. Thus it will be necessary to begin replacing various items if one desires to keep their vehicle operating and thus driveble.
Regards, Carlton |
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03-19-2009, 05:14 PM
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Large Registered Member
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an often overlooked item of service is the fuel injectors!
Doing mine at 135k miles solved some bizarre rough running issues that were completely sporatic at best. Replace them or overhall them is the best thing you could do for the car! Made my engine run like new again, in addition to greatly improving fuel economy too!
__________________
'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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03-19-2009, 05:18 PM
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Whoopsies I was banned!!!
Join Date: Sep 2005
Location: Trying to Escape from FLA
Posts: 4,593
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Oh and something else comes to mind. The DME. Not in terms of quality or reliability but in terms of "conservative" performance.
'84 was the year the DME was introduced for 911's (I think 928's already had it, possibly 944's too, maybe a racing version like the dakar runner?). At that time, unleaded gas quality across all regions and across all vendors was of question for the U.S. when utilized for higher performance engines. So Porsche was very, very conservative with the various fuel/timing mappings to ensure that the engine could handle gas of varying quality. Kudos to whomever in Porsche had the forsight to fend off potential disaster. For the carrera, the DME mappings did I believe evolve over the span from '84 - '89. This resulted in more hp for essentially the same engine. I suspect this may have happened for two reasons. First, as time progresses, perhaps the mappings were overly conservative and based upon feedback data over time, Porsche felt more comfortable with reducing the conservative margin. Second, perhaps the variance in the gas quality improved in the U.S. thereby allowing them to in essence "remargin" the mappings less conservatively over the years. Could one for example re-chip the '84 to '89 standards. Yep. Could one also for example re-chip the '84 to something more shall we say semi-custom? Yep. I'll leave that to you to decide. I suspect however that you will be too busy enjoying the '84 to worry. At least for the time being..... Regards, Carlton |
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03-19-2009, 05:48 PM
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Large Registered Member
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+1! A Steve Wong Chip www.911chips.com and an injector overhaul will really make the car wake up!
__________________
'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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03-19-2009, 06:01 PM
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Formerly known as Syzygy
Join Date: Mar 2008
Location: Calgary, AB
Posts: 4,420
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OK, thanks. Most of the stuff listed would be the same for an '85 or '86 as well - ie. the 915 and age related things.
I thought being the first of the electronic injection cars there might be an issue or two there. If its just the mapping, then a SW chip would sort that out. So no real differences or things that often crop up with a new car model? What's unique about the oil cooler? |
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03-19-2009, 07:36 PM
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