1JZ BPU Gas Mileage?

[honestabe]

Just curious as to what everyone is getting for mileage on their BPU 1J's. I'm running a Walbro 255 LPH fuel pump, 3" free flowing exhaust without cat, cold air intake, and 14 PSi of boost. I'm thinking 13 if my foot is in it, 18 if it's out. I'll find out tomorrow what I'm actually getting, but I'm just curious. I figure on 6 full tanks of gas for my 1200 mile drive to Portland. Let's hear what y'all are getting.

Adam

 

[AF1JZ]

I got 25mpg on the highway with a 3'' exhaust, chinaman y-pipe, high flow cat, 24x12x3 FMIC, at 11psi. This was also with the silencer in the muffler. Around town, I get maybe 15-18mpg. I don't really calculate it. I'm mostly driving my Lexus anyway.

 

[OneJArpus]

25 mpg is cool

im lucky if i get that in my 7m

 

[drewgo]

I am single with 468 rwhp.... On a good week I get 24.5 average..
If I goof off I'll kill my gas mileage.

 

[honestabe]

Sounds like this trip won't cost me anywhere near as much than. I'll report what my actual freeway mileage is when I get to San Francisco tomorrow night at Lau's house.

Adam

 

[OneJoeZee]

You've had a 1J for a while now. You should be aware what the mileage is like. :dunno:

 

[HIDPLANET]

I got 78 miles to a tank once :aigo:

 

[Ds650rida]

how big are the a70 fuel tanks?

i averaged about 21 mpg on a rich running 7mgte with downpipe, intake, catted exhaust & higher comp pistons

 

[honestabe]

Joe, I've had my 1J for over a year, but I've only put on 3000 miles during that time. I calculated it once to be 17 MPG, but that's city and freeway with both sane and crazy driving.

Ds650rida, the Supra's fuel tank is 18.5 gallons, with a 2 gallon sediment bin (16.5 gallons of usable gas, meaning when you run out of gas, you actually have 2 gallons of fuel left that your fuel pump won't touch).

 

[swaq]

Ds650rida, the Supra's fuel tank is 18.5 gallons, with a 2 gallon sediment bin (16.5 gallons of usable gas, meaning when you run out of gas, you actually have 2 gallons of fuel left that your fuel pump won't touch).

Are you serious? I've never heard this before. What is the purpose of a sediment bin?

 

[honestabe]

Dead serious swaq. It's supposed to catch crap in the fuel and prevent it from going into your motor.

 

[Spaniard]

So what happens when you go with a fuel cell? you just run a big ass filter? I think having two gallons of unusual fuel acting as a "buffer" if you will adds a lot of weight.

 

[Ds650rida]

sounds like dead weight to me thats a pretty big tank, i could only get about 14 gallons out of the pump when filling up, so your saying i had like another 2 gallon s of usable fuel left?

do 88's have like a low fuel warning light? i thought i saw one but it never went on idk if mine works or not, and i dont wanna find out the hard way.

 

[honestabe]

Yes, all MKIII's came with a low fuel light, and I'm pretty sure the MKII's did too. When you get a fuel cell, the inside of the cell should be filled with a special foam that prevents your fuel from sloshing around. I'm not sure if you need to add a filter on top of that, but I don't think you do. Although if you do, it doesn't have to be very big at all. I haven't heard of a fuel filter clogging up in 15 years, and that was in a Chevy Lumina.

Adam

 

[1jzMoe]

24-25 on highwas and ~18 mixed both on the gas all the time

 

[str8_6]

30mpg with normal driving and very few wot. i bet i could get more if i did no wot and precision fuel saver skills. its kinda hard to NEVER go wot though, sometimes you just have to speed up to get to highway speeds, its like that here. 35mph then all of a sudden 55mph.

i'm also single, so turbo does not spool as fast as the stock twins. also i think i average out better because i weigh less, less motor work, etc.

 

[bobiseverywhere]

Well to about 60 Liters i will Get anywhere between 300 - 400 km

I am pretty heavy with the pedal i guess

On the good side for me that works out to 15L/100km or 15.68 mpg that is mostly city and some highway

On the bad side 20L/100km or 11.76 mpg :3d_frown: :aigo:

My mods are very few.
Just and intake HKS Mushroom and a close to free flowing 3" exhaust no cat but stock Y-pipe the Exhaust has a res and a large muffler it is an HKS Turbo Cat Back Exhaust system. Everything else is stock. guess i need to work on that milage

I will push though between 13 - 14 lbs of boost usually and some time i'll hit Fuel cut at 1bar


BTW Our tanks have a total capacity of 70 Liters or 18.49 Galons

 

[honestabe]

Atleast I've learned to only drive hard when someone new is in the car, or when getting onto freeways (1st, 2nd, 3rd, 5th).

Adam

 

[Ds650rida]

damn i need to get my car done, i still have half a tank of premium in there!

 

[foreverpsycotic]

damn i need to get my car done, i still have half a tank of premium in there!

You think thats bad? I have a wrecked car in my garage that has 1/2 a tank of c16.

To add to this thread, i got 297mi to 16g