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Too big to fail
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Gas mileage
I replaced 5 of my 6 injectors last Friday (vendor screwup - got one CIS injector in the batch). I filled it up that night.
The next day I drove around doing last-minute errands, drove to Woodland for dinner, then off to the track. Less than 1/8 of a tank. I topped off when I got to Wilows. I drove every session I could at the track, probably 6 sessions in all. I used a little under 1/2 tank. Normally, I go thru a tank and a half to two tanks on a track day. Amazing.
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"You go to the track with the Porsche you have, not the Porsche you wish you had." '03 E46 M3 '57 356A Various VWs Last edited by widebody911; 07-08-2002 at 09:49 AM.. |
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07-08-2002, 09:46 AM
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Crusty Conservative
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Fuel Mileage...
Thom,
Is this a stock 3.6 motor? How many miles, about? What do you attribute the sudden improvement? Should we all be ordering new injectors??/ You have me wondering now. Thanks, 
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Bill 69 911 T Targa, 2.4E w/carbs (1985-2001) 70 911 S Coupe, 2nd owner (1989- 2015) 73 911 T Targa, 3.2 Motronic (2001- ) |
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07-08-2002, 01:52 PM
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Registered
Join Date: Dec 2001
Location: MA USA
Posts: 2,938
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So Thom, what kind of mpg do you get with the 3.6 in there?
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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07-08-2002, 04:56 PM
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Registered
Join Date: May 2002
Location: Wisconsin
Posts: 739
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Wow. Now I'm wondering, too. I burn a sinful amount of gas, and the car is running very rich. I was going to take it to someone who has the exhaust instruments to adjust the mixture, but maybe I should change the injectors first, eh?
It's counter-intuitive that bad injectors would use more fuel; it seems that an old injector would clog up and deliver less fuel. Anyway - I'm anxious to hear from the PPBB experts on this topic! |
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07-08-2002, 05:47 PM
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Registered
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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When you have a set of clogged injectors, not all are clogged the same amount and the ones that are clogged a significant amount will cause the 02 sensor to read a false lean condition forcing all the injectors to run a bit richer to compensate for the ones that are clogged and running lean.
Hope this helps, Joe Last edited by stlrj; 07-08-2002 at 09:59 PM.. |
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07-08-2002, 09:57 PM
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1970 Porsche 911S 2.2l MFI
