Thread: MPG??? B chassis

^^ depends on car too, my tacoma build boost at crusing range! lol

Thing is, by checking your gas mileage your checking to make sure your car is in 100% working order. If there is something wrong, you will know the next tank you fill up.

Say your brakes lock up in the rear, you will loose 2-5mpg with that, you will loose 0 whp on the dyno, and probably will be only a little slower so butt dyno wont notice it, but you will see it in your gas mileage drop.

Same goes for ignition components, low tire pressure, etc.



I'm Russian, we love numbers too, this is probably why I'm MPG obsessed.

LOL @ Keo...

I calculate my mpg's every fillup because I'm a nerd... but to be honest. The only time I see 30+ is when I'm paying attention to the way I drive. I drive easy for the most part but I have to see a pubic hair from fuel cut on the daily or I get cranky.

When I'm being silly on back roads and onramps I might as well not have a low cam...

Even though everyone thinks I'm a hypermiler, I really never baby the car. She sees redline at least once a week. Cleans the valves

once a week? i do it every day!

I check everytime as well on the b13. I regularly get 31-33mpg on a 176k bolt-on DE. 80%hwy 20% city. It is all about how you drive, NOT neccessarily how fast you go.I've been experimenting since I got the car with driving techniques and how it affects mileage. I drove like a grandma 55mph hwy (painful I know) and shifted at 3k. I drove regularly at 70mph and shift at 3.5k with a few redlines. What I found best is to drive somewhere in between. The sweetspot on my car is 60-62mph and shift at 3.25k and I regularly see at least 32.5mpg and as high as 35.85mpg. I have heard that 55mph is the best, but I think that is not true for the SR20 based on where it makes torque. You want to maintain throttle position, not speed. And you want to do this just where the engine makes just enough adequate torque to keep the momentum without the rpm's climbing too high. Under 2.5k on the throttle, you are lugging the engine (even for this torquey engine) and so uphills really kill mpg. Also, you want to have momentum going into an uphill and then maintain throttle (not speed) with that momentum. Yes you will lose speed, but this is the cost. That's the tricky part. To achieve the best mpgs it honestly takes concentration lol. More fun to redline at that point. I'll let the 1.6L do the hypermiling lol.

Other things to do is coasting in nuetral when you can. Predict when a light turns red up ahead and go into nuetral if you know the light will be red when you get there. Also, fold in mirrors on the hwy, have 40psi in the rear tires (watch treadwear), and use the blower on cold (not a/c or windows down) when your hot. And just for the heck of it, wax the car haha. I'd love to see what I could do with the VE with bolt-ons. I'd say 40mpg is definitely possible. Sorry for the rant but I want to share my experiences.

Dave

While boosted i was getting 32-34 mpg with mixed driving. My ve motor got about 32-33 mixed driving, my t3 turbo setup i got 39.5 mpg on the highway driving to and back from phoenix.

When my car was stock with a jdm motor when i first got it i would get roughly 30-31 mixed driving. A well maintained b13 stock or modified should get over 30mpg mixed driving.

I get 25mpg driving around town and 5 miles to work in my p10. Ive gotten 34-35mpg driving from AZ to CA with some spirited driving.

Fair enough. Makes perfect sense.

Not that I am going to actually do it, but I cannot fault that logic.

I've changed my driving habits lately, and at half a tank I'm about averaging 30-31, mostly city driving. Granted, I DD a GA16, but with my conservative driving change I'm seeing a +6 or so mpg increase. Also helps if you over inflate your tires.





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