also have a new fuel pump but is there any other people that didnt experiance a increase in boost after bic ddp install?
How many MPG do you get on your supra?
- Thread starter suprajjang
- Start date
I guess somethings wrong with my car...11.3 MPG I just checked for the first time couple of minutes ago...Damn might has well finish the Chevelle and drive it cause I think I can get just about that with the Big Block and 4.10 rear end gears... My friends Blown 350 Iroc gets 20MPG but hes got 2.77 rear end gears... Help!
The tag is a government test from a new car. Most of you have many miles on the car before you ever owned it. There is a thing called fuel trim. You floor it every light, and the ECU tries to compensate for how you drive. It thinks you arent getting what you want. Even if you use the cruise control on a trip, your car is now programmd to drive a certain way now. Ford calls it adaptive strategy, GM calls it block learn.
You can not "reset" an ECU. The old ones can not be "flashed" or redone. You only clear codes when you pull the EFI fuse. A fresh tune up, lighten up on the loud pedal around town, and a fresh oxygen sensor, and in time, your mpg will increase. New cars we can just erase, even the transmission's learned personality.
edit: those with stand alone, or that new e-manage ultimate can go to sequential injection and improve mileage.
N
NDBoost
Guest
ive got you beat. 147~ miles to a 14 gal tankGreenChevelleSS said:
10.5MPG :biglaugh: :naughty: Of course thats before i got my o2 sensor put in, Right now im at 1/4 tank left @ 163 miles so its already better, i should get 180-200 for the rest of this tank. I should check the spark plugs and see if they are in decent cond (just changed them 2-3k ago).Most of it is how you drive the car, the turbo apparently loves fuel
Seems like the o2 sensor is the way to go....will save a bundle of money and will pay for itself in just a few fills. Will the check engine light come on if the O2 sensor needs to be changed? Or will I have to check the o2 sensor to see if theres carbon buildup and whatnot?
N
NDBoost
Guest
ive never had an o2 sensor cause a CEL on me, then again it may of never gone out totally..HyRisk said:
before rodknock .... 9.7MPG city and about 12-12 highway.
yes, this includes new hoses, filters, maintenance and fresh oil.
.... 9.7MPG city and about 12-12 highway.yes, this includes new hoses, filters, maintenance and fresh oil.
jdm engine i get about 13 to 13.3 mph in city driving. it needs a tune up and i tend to drive fast.....like says limit is 40 i'm doing 50-60 >.> though i'm rushing to work or trying to get home at 3am....
I get about 16mpg average... something like 13-14 in town, and about 19-20 on the freeway. I can get 25mpg if I cruise @ 45mph, though
i thought the car was supposed to get like 18 city / 23 highway brand new?
my car is running super rich now, i'm getting like 10-15mpg.. hopefully after the maftpro with the lock-in A/F ratio feature, it will get much better.
my car is running super rich now, i'm getting like 10-15mpg.. hopefully after the maftpro with the lock-in A/F ratio feature, it will get much better.
Yes, the original MK3 Supra stickers had 18 City/23 Highway.
I get 23 MPG average, but that is with a tuned engine, new O2 sensor, new spark plugs/wires, synthetic oil, etc.
When I was messing with the air/fuel ratio and the fuel pressure, I was getting 27 MPG but it was backfiring and was running lean.
If you do the following, you will get better gas mileage than the sticker says with any car (I get 40 MPG on a car with the sticker saying 32/35):
1- Keep your engine tuned (spark plugs, air filter, oil)
2- Check your tire pressure monthly
3- No jack-rabbit starts, accelerate slowly, drive slower on the highway (55 to 65 MPH)
4- Wax your car - aerodynamics and wind resistance are important factors to MPG
5- Use only the octane you need according to your owner's manual. If 87 is needed, don't waste your money by putting 93 in
6- Go the gas station with the lowest price in town. Try not to top off too much, as some gas stays in the hose. Eventually gas will reach the top and can spill over. My old Ford Escort would release the extra gas and it would spill underneath the car. I overfilled my dad's new Cadillac one time (way too much) and the Check Engine light came on, we took it to the dealer and it was due to this (yea after $60 too). Make sure your gas cap clicks 3 times, and is secure. This is another reason that Check Engine light can come on.
7- Watch those gas additives. Most of them just contain high octane gas and are a waste of money. Some are worthwhile like Lucas. I spoke to some AutoZone employees/managers and all agreed that most of the gas additives on the shelf are not needed. I found that getting a fuel system cleanup done every 30,000 miles is more cost effective than adding additives with every tank fillup.
8- Don't carry things around that are unnecessary as it adds weight to the car
9- Use gravity to your advantage. Accelerate before reaching a hill not during it. Ease up as you reach the top and let gravity increase your speed on the way down.
10- Use common sense. Don't race your engine in Park or Neutral. Don't idle for long periods of time. Don't floor it. Don't race to a red light. Most stop lights in towns are geared so that if your MPH is close to the speed limit, you will make it through most stop lights without stopping.
I follow all the above for my beater-commute car. The Supra, especially with a Turbo is a different beast. 93 octane is best as the gas burns quicker and you will not get as much unburned gas (backfiring). It's a sports car, so I'm not going to drive like I'm a senior citizen. I floor it, I race it, I do jack-rabbit starts and I accelerate quickly.
I get 23 MPG average, but that is with a tuned engine, new O2 sensor, new spark plugs/wires, synthetic oil, etc.
When I was messing with the air/fuel ratio and the fuel pressure, I was getting 27 MPG but it was backfiring and was running lean.
If you do the following, you will get better gas mileage than the sticker says with any car (I get 40 MPG on a car with the sticker saying 32/35):
1- Keep your engine tuned (spark plugs, air filter, oil)
2- Check your tire pressure monthly
3- No jack-rabbit starts, accelerate slowly, drive slower on the highway (55 to 65 MPH)
4- Wax your car - aerodynamics and wind resistance are important factors to MPG
5- Use only the octane you need according to your owner's manual. If 87 is needed, don't waste your money by putting 93 in
6- Go the gas station with the lowest price in town. Try not to top off too much, as some gas stays in the hose. Eventually gas will reach the top and can spill over. My old Ford Escort would release the extra gas and it would spill underneath the car. I overfilled my dad's new Cadillac one time (way too much) and the Check Engine light came on, we took it to the dealer and it was due to this (yea after $60 too). Make sure your gas cap clicks 3 times, and is secure. This is another reason that Check Engine light can come on.
7- Watch those gas additives. Most of them just contain high octane gas and are a waste of money. Some are worthwhile like Lucas. I spoke to some AutoZone employees/managers and all agreed that most of the gas additives on the shelf are not needed. I found that getting a fuel system cleanup done every 30,000 miles is more cost effective than adding additives with every tank fillup.
8- Don't carry things around that are unnecessary as it adds weight to the car
9- Use gravity to your advantage. Accelerate before reaching a hill not during it. Ease up as you reach the top and let gravity increase your speed on the way down.
10- Use common sense. Don't race your engine in Park or Neutral. Don't idle for long periods of time. Don't floor it. Don't race to a red light. Most stop lights in towns are geared so that if your MPH is close to the speed limit, you will make it through most stop lights without stopping.
I follow all the above for my beater-commute car. The Supra, especially with a Turbo is a different beast. 93 octane is best as the gas burns quicker and you will not get as much unburned gas (backfiring). It's a sports car, so I'm not going to drive like I'm a senior citizen. I floor it, I race it, I do jack-rabbit starts and I accelerate quickly.
^^^"Less" power potential? Then why are people that are going to dyno or run at the track use high octane (114, 110, etc).???
Sorry, he is right. High octane gasoline burns slower than low octane gasoline. It was early and I was still sleeping.
http://www.state.mn.us/mn/externalDocs/Commerce/Gasoline_Octane_Facts_102902052227_OctaneFacts.pdf
http://en.wikipedia.org/wiki/Gasoline
http://www.state.mn.us/mn/externalDocs/Commerce/Gasoline_Octane_Facts_102902052227_OctaneFacts.pdf
http://en.wikipedia.org/wiki/Gasoline