Gas mileage....gulp!

[pikeperkins]

So I went to the Orlando meet and greet last night and the car ran like a top. I told everyone there that the best $$ I spent was redoing the tank with the POR kit. Anyhow, the round trip was ~110 miles. I used ~9 gallons of gas for a whopping ~12.2 MPG! Here's to hoping the 5-speed will offset the sync-link on the highway and further tuning will improve the MPG.

[gastephens]

Stay thirsty my friend.

You have a serious problem. Should be at least 20 at 80mph, 25 at 70mph.

[nbristow01]

Man with that kind of mileage you could have a 5.0 in it!

[doug73cs]

Assuming you have a 32/36 weber and just added a sync link - what was you mileage before? My 38/38 gets about twice the mileage you have with a 3.90 rear end.

Now that the jets are synchronous opening, could you lean out the mix? Was that at constant cruising or passing everything in sight with the new found performance?

Doug

[Richard]

Make sure your not diluting your oil

[asifallasleep]

12 is definitely low but be wary of the high mileage (25-30mpg) claims on here. It all depends on the condition of your vehicle. You car may never get to that. Varies greatly from car to car. A brand new '02 in 1974 would get around 22.6 mpg.

I've spoken with many shops that specialize on '02's and was told the 17mpg i get with my car, a 36 year old car, is about right. I have a 32/36 weber in my '74.

[4x2]

A somewhat decent 2 liter with a 4 speed should easily get 22mpg on longer trips.

I averaged about 25mpg with the original engine in my 1602 on petrol (4-speed, 4.11, original solex)

I did get 32mpg once or twice with slow (50-60mph) highway driving on longer trips.

And that wasn't a healthy engine to put it mildly.

Since then I haven't really driven on petrol anymore and LPG increases fuel consumption by some 15-20% compared to petrol.

Still get about 18mpg on average (short trips, fast driving) or 22 on longer trips (75-80mph highway driving) with my turbo engine.

[TKMad]

I got a reliable 21mpg with the single barrel Solex. I did Megasquirt and now get 27-28mpg for the same driving. I just installed a 5 speed so I'll see if that helps further.

I would say that 12 means there is a problem and I would definitely check timing and mixture as best you can.

[esty]

if you have the sync-link installed, you'll find it very difficult to impossible to get it to perform like you want and provide reasonable fuel economy...

[nbristow01]

I got a reliable 21mpg with the single barrel Solex. I did Megasquirt and now get 27-28mpg for the same driving. I just installed a 5 speed so I'll see if that helps further.

I would say that 12 means there is a problem and I would definitely check timing and mixture as best you can.

Man gotta love EFi and megasquirt for fuel economy. i think you could get 12mpg if the timing was off some, the engine is a bit worn, the carb is a bit old. All of that can add up to poor mileage very quickly

[conkitchen]

So I went to the Orlando meet and greet last night and the car ran like a top. I told everyone there that the best $$ I spent was redoing the tank with the POR kit. Anyhow, the round trip was ~110 miles. I used ~9 gallons of gas for a whopping ~12.2 MPG! Here's to hoping the 5-speed will offset the sync-link on the highway and further tuning will improve the MPG.

Maybe you have a tapeworm in the tank.

[williamggruff]

I'm running dual 40's on a 2.3L stroker, and I get about the same mileage. I was recently informed by some sage driving veterans that the dead pedal is on the left, not the right. So my mileage might increase once I figure out how to take advantage of that knowledge.

[TobyB]

i think I get about that... on the track! WOT? WooT!

t

[visionaut]

I've gotten into the 13 mpg range doing some crazy leadfoot racing for a day myself (auto-x or 'freestyle mountain rallying' )

;-)

[GRMPer]

Nice meeting you at the meet! My Tii got 21 on approximately that same 110 mile round trip.