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Carburetors conversion for 928 S my.1980

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Old 12-08-2008, 10:10 AM
  #31  
hacker-pschorr
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Originally Posted by Nicole
I often wonder, if we would still drive cars with carburators, had there not been mandates for emissions controls.
I'm sure there would be a few cars on the market with carbs, but not many. Considering Bosch and Mercedes introduced fuel injection to the market in 1955. GM soon after with the Corvette in 1957.

Originally Posted by Fogey1
I'm sure the big three would still be using carbs because "their customers demanded it" and dissing the euro and asian product with the "extra complexity" of fuel injection. Probably taking about how carbs add a little road-hugging weight. Of course they'd have FI on all their Euro product, but that wouldn't be available in the U.S.
Like I mentioned above, the US was right behind Germany with the introduction of FI. In the 60's, top race teams were arleady testing / using fuel injection with great success. The systems that worked on these cars were far to complex for road cars at that time. The available production systems were not advanced enough for the higher powered motors.
Sure it took a while to catch on, we are creatures of habbit. The air bag was first introduced by Oldsmobile in 1973.
Old 12-08-2008, 10:47 AM
  #32  
Ian928
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Triumph used PI on their European cars in the late sixties. However, the US importers did not want it because it was considered too complex, so Triumph was forced to produce special cars with carburettors for the US market. It seems to me US car production ingenuity peaked in the late fifties and car producers and buyers has longed for the good ole days ever since that...
Old 12-09-2008, 05:51 PM
  #33  
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Originally Posted by WallyP
The Bosch fuel injection system was originally developed by a couple of American companies - Bendix and American Motors...
I didn't know that, but it's no surprise. The man who worked on our Citroens when I was kid in Columbus, Ohio, received a royalty stream from Citroen because he held earlier patents for the hydro-pneumatic suspension. (or components)

My point had to do with what Detroit became for a couple of generations after its golden years. Which I actually hope are returning - there's been great product coming out for ten years now, but throwing away a legacy and reputation is much easier than rebuilding one. (Porsche should pay attention, not going racing is a mistake.)

Originally Posted by Hacker-Pschorr
I'm sure there would be a few cars on the market with carbs, but not many. Considering Bosch and Mercedes introduced fuel injection to the market in 1955. GM soon after with the Corvette in 1957 ... Sure it took a while to catch on, we are creatures of habbit. The air bag was first introduced by Oldsmobile in 1973.
Thirty-plus years is definitely a while. What was FI's rate of penetration? What % of cars produced in the US had FI in 1987?

I think Nic's right that it was emissions and, more important imo, CAFE standards that drove FI through the Motown bureaucratic sludge. Managers and bean-counters may be OK in charge of manufacturing some kinds of widgets, but cars are and always have been more than just appliances. Engineers and car guys are required.

Didn't know about the air bag.

I'm rooting for the Big Three and I hope they can pull out of their death spiral. I doubt we could pull off WWII production now and we do need to be able to, on general principles.
Old 12-09-2008, 06:17 PM
  #34  
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for me it's the oldschool love for those big Webers with them typical sucking noise... i know, at best even WOT HP... but sure less part- throttle torque... perhaps cornering issues with fuel supply... ok, but it is a hobby ! I'm not gonne race F1... just a bunch of amateur friends enjoying a afternoon from time to time on the circuit...
Old 02-20-2016, 07:16 PM
  #35  
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I made a carb conversion for my 1982 Porsche 928 and it works perfectly now .
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Old 02-20-2016, 08:13 PM
  #36  
James Bailey
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Ah and the copper tubing is the intake heater to keep fuel from pooling up in the runner....and warm the intake air. That is thinking outside the box !
Old 02-21-2016, 04:23 PM
  #37  
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Originally Posted by James Bailey
Ah and the copper tubing is the intake heater to keep fuel from pooling up in the runner....and warm the intake air. That is thinking outside the box !
Yup and it actually runs quite nice and the hood actually closes
Old 02-21-2016, 04:27 PM
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So it is inside the box then !!
Old 02-17-2021, 11:20 AM
  #39  
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Do you have any info on how you made this as far as dimensions, carbs used, what had to be done and all that stuff? Is this something you would be willing share? I really want to get rid of 928 CIS, its exspensive to fix and is a constant thorn in my side.
Old 02-17-2021, 12:21 PM
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Teaser pictures.
Åke
Old 02-17-2021, 03:05 PM
  #41  
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haha, my dream... but not yet proved .
In 2008 a made a carb conversion on a '82 with IDA48's.... didn't got it running better then the CIS but afterwards maybe due to big venturis ( 42 mm ) ... which is a bad start . Changed it now ( 36 mm ) but didn't finish the project to go dyno yet ... Those protrude the bonnet .
Now a second try with IDF44 .... that can be made with low manifolds, air trumpets and filters to keep it under the bonnet . Nicer solution for a street driven car . Also not finished yet .

It was my dream to make a carb set for conversion of CIS and LH .... cheap , reliable solution for a also ,old school, complex expensive system nowadays.

I know , mpg would suffer and perhaps torque low down ... but it would give a simple reliable and cheap ! solution to keep a average strong 928 block running for another few years . ....

And sure not being a hot water invention.... if we look at how many oldtimers run perfect with weber carbs.




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