I'm curently getting about 13 mpg! I have a 1990 RS with a 3.1L. i know i should get better what should i do?? I'm also planing on getting a Hooker cat-back system and removing the cat. Please help me.

 

i recommend that you stop driving like a maniac. j/k, no really, when i drive aggressively(lead foot) i get around 14 mpg city. if i drive like a granny i can get 19 mpg city.(but then it's no fun). maybe your foot is your problem.

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Dan
1990 3.1L RS
80 Series Flowmaster
It's fast(er than a 3 cyl metro)

 

With that gas mileage, you should DEFINITELY consider learning how to burn your own eprom. I get over 27 US mpgs with my L98 auto with 3.23s. And that test wasn't even with an "aggressive" setting. I am shooting for 30 US mpgs.

With the money you would save on gas (I am sure that "optimzed" V6 should get close to 35 US mpgs), it wouldd EASILY pay for all your eprom burning equipment is a very short time (along with additional power if that interest you) AND then with the continuing savings, you could buy more "go fast goodies".

Just a thought.

 

Hey Glen, does that at all hurt performance? Could you have more performance if you went w/ a little less more MPG, and went for more horsepower? The reason that I say that, is because I always thought that the more power the lesser the MPG is!?!? Thats why when something has lets say a supercharger/turbo, they get less gas milege.

Help me sort this out!

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91 RS Camaro
3.1L
Cat Back System, K&N filter,modified air box, Fastchip Stage 2, 160 thermo, Rapidfires and Bosch Wires 5 Air Horns
Stereo: Clarion Deck, 2 12' Kicker CompVR's, IX702

ICQ: 65384740

My Car ( no stereo pics yet)

 

If you have a manual just shift all the gears at 2000 rpms and you will be good. Just kinda sucks till it gets to 4000 rpms . I never drive slow, I don't care if I get 8 mpg I can't have an old *** lady in a toyota carola beat me at the light, even if we aren't racing lol. But **** mpg and drive like you own the road! Shesh, you own a Camaro! Nuf said about mpg.

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1992 Camaro RS 3.1L Check my cars out! http://hometown.aol.com/stopsign696/...age/index.html

T5 Manual 5 speed
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Z-28 Exhaust
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TB Coolant bypass


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95 (****) Probe GT,94 Mustang GT,91 CRX (dont ask me why he raced me),2nd Gen Z28 (350) haha to you V8 guys!,1992 RS 305 TBI (good race),First Gen Integra, Old Escort LX, 80 something Fbird
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RS there are two ways to add power to an engine. One way is to increase the efficiency of the engine. This means that you will be taking in the same amount of fuel but getting more power from it. This can be accomplished in many ways. Increaseing airflow in and out, decreasing friction, and improving the completion of combustion are just some of the ways. These generally improve power and mileage. They will allow more fuel to be burned though so you can decrease mileage if you have a lead foot. This gets to volumetric efficiency of engines. This is basically the persent of air and fuel that you can get into and out of an engine. As this goes up so does power. You can hurt your fuel mileage in this area if you are not carefull. In general, most of the common performance mods for out V6s increase mileage if you can keep your foot out of it. I recomend ignition, exaust, and intake first.

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86 Camaro 2.8, 92 Firebird 3.1, 1951 Chev 327, Four-wheeling hybrid.

 

yeah but why am i getting such bad milage i drove this tank on cruise almost the whole time!!! this mornin it only barely got above 100 degees!! but then tonite just sittin it was up to 220 i dunno whats up with it

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1990 RS, 3.1L, soon to have no cat, a Hooker cat back, K&N, but for now its stock, got it for 1600 and its pretty nice.

 

Garmer, that's the beautiful thing about "optimizing" the eprom; you get the best of both worlds. When you are just cruising, it leans itself out to get the maximum gas mileage it can. By invoking the "Highway Mode Spark Advance" you retain most of your part throttle responsiveness with it. How does 17.2-17.4:1 AF ratio with over 45* spark advance grab you? At part throttle, there is no problem with knock retard kicking in.

Then, when you encounter a slight grade/hill or just give it a little extra gas; it returns to 14.7:1 with a "normal" (well my normal) spark advance of 38-42*. Again, spark advance is what gives you that throttle response everyone likes.

Lastly, when you want to pass someone, it goes into Power Enrichment mode (the ecm does not use WOT, it uses PE) and you pollute good like a car should. You get EVERYTHING this way, all done automatically through the eprom. Completely seemless to the driver. You barely notice it when the engine "super leans" itself if you advance the spark around 45*.

Basically, you are getting the mixture to be on the verge of detonation; and that's the trick to making all this eprom stuff work. Both for maximum gas mileage and maximum performance.

 

Glenn, thanks for the info. Seems like one day I am going to start burning my own!