Drew Whiteman Posted March 12, 2010 Share Posted March 12, 2010 What gas milage should I reasonably expect from an '86 BRAT? After driving '80-'84 wagons for years (with 25-30 mpg), I expected similar milage out of my "new" BRAT (but she only gets 20+ mpg). She otherwise runs smooth and strong... Are there ways to think about improving, problems to look for? Or is this what I should expect? Thanks, Drew Quote Link to comment Share on other sites More sharing options...
DougieFresh Posted March 12, 2010 Share Posted March 12, 2010 I've been wondering that too. I have an 83 brat, and I'm not sure why it's not getting great gas mileage. Brats don't have heavier flywheels do they? I haven't driven a subie sedan or wagon, so I have nothing to base that off of... Quote Link to comment Share on other sites More sharing options...
Twitch de la Brat Posted March 12, 2010 Share Posted March 12, 2010 What gas milage should I reasonably expect from an '86 BRAT? After driving '80-'84 wagons for years (with 25-30 mpg), I expected similar milage out of my "new" BRAT (but she only gets 20+ mpg). She otherwise runs smooth and strong... Are there ways to think about improving, problems to look for? Or is this what I should expect? Thanks, Drew I'm pretty sure its the aerodynamics of the car, and also the fuel you're putting in. In my experience with my BRAT, I get 2-3 mpg better with the mid grade than I do with the low grade stuff. Also, my mpg goes up when I use the 10% ethanol stuff too (don't ask me why but it just does) You may consider running a can of seafoam through your gas tank, just in case your carb or fuel lines need to be cleaned out. Twitch Quote Link to comment Share on other sites More sharing options...
peewee Posted March 12, 2010 Share Posted March 12, 2010 I get better mileage with mid-grade gas as well ... about 21-24 mpg 85 Brat Quote Link to comment Share on other sites More sharing options...
XTREME RACING Posted March 12, 2010 Share Posted March 12, 2010 I normally get around 25+ out of my 86 but it is also flat where I am at. I did have a couple of tires with low air pressure and my millage went to around 20 to 22 mpg but filled the tires back up and I am now back to over 25 mpg. Quote Link to comment Share on other sites More sharing options...
bheinen74 Posted March 12, 2010 Share Posted March 12, 2010 stock form my BRAT got about 20/21mpg after the lift, and after Weber carb conversion, factoring the mileage correction to larger tire size, getting about 24 now Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted March 12, 2010 Share Posted March 12, 2010 (edited) Stock you should get 27 to 30 depending on driving. I've owned a LOT of EA81's (yes - several Brat's too and have daily driven them) and the only time I haven't been able to get to 26 or 27 with in-town driving is when something is not tuned properly, the cat is clogged up, or with poor tire inflation. Even my '83 hatch that has one low comp. cylinder (110 while the other's are around 140 - 150) get's 25 to 26 in town and the last trip I took to the beach and back I got 30.5 That goes for stock carbs and Weber's. I've run both for 10's of thousands of miles and the differences are negligible if tuned properly. My hatch has a 1960's Weber DGV-5A (manual choke) on it and as noted above it can reach low 30's with me driving it like I stole it. I imagine if I drove like grandma it would do closer to 35 - I have reliable sources that claim mid to high 30's from a 4WD hatch driven by a little old lady. GD Edited March 12, 2010 by GeneralDisorder Quote Link to comment Share on other sites More sharing options...
Mr. Brat Posted March 12, 2010 Share Posted March 12, 2010 When mine was stock I was getting an average of 27 on the highway and with the canopy I was getting about 32mpg. That was also with 6 lug conv. and bigger tires but no lift. About 24-25 inch tires. Quote Link to comment Share on other sites More sharing options...
ettev Posted March 12, 2010 Share Posted March 12, 2010 stock form my BRAT got about 20/21mpgafter the lift, and after Weber carb conversion, factoring the mileage correction to larger tire size, getting about 24 now +1 .......... same mods on mine. I might be a tad better than 24. Depends on my mood as to how heavy I am on the pedal. Quote Link to comment Share on other sites More sharing options...
pksjeep Posted March 14, 2010 Share Posted March 14, 2010 I get 21+ around town and it goes to 29 on the highway. The car is stock, no lift and 13 wheels. Quote Link to comment Share on other sites More sharing options...
DougieFresh Posted March 18, 2010 Share Posted March 18, 2010 I just upped my gas mileage a ton. I'm not sure what it was before, but I got new 2 inch Y pipes from the headers to a 2 inch high flow cat, and ran that 2' piping through a later model subaru muffler. It's made a huuuuuge difference in performance and mileage. I would really recommend it. the stock cat and pipes were very restrictive. Quote Link to comment Share on other sites More sharing options...
ettev Posted March 19, 2010 Share Posted March 19, 2010 I just upped my gas mileage a ton. I'm not sure what it was before, but I got new 2 inch Y pipes from the headers to a 2 inch high flow cat, and ran that 2' piping through a later model subaru muffler. It's made a huuuuuge difference in performance and mileage. I would really recommend it. the stock cat and pipes were very restrictive. I have a new 2" setup as well from the Y-pipe all the way back. Cut the cat open on the top side and gutted it then put it back in the system for visual emmissions inspection. Again 2" from there back thru a real small cherry bomb and out the back again with a 2" pipe. HUGE difference when coupled with the weber. Always remember, modifying the gulping side won't yield the desired effects without working on the farting side too. Quote Link to comment Share on other sites More sharing options...
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