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-   -   Fuel Economy with a GTM TT kit!!! (http://www.the370z.com/forced-induction/39488-fuel-economy-gtm-tt-kit.html)

VQStryker 07-14-2011 05:02 AM

driving habbits and tune will dictate your gas mileage.

Nixlimited 07-14-2011 12:11 PM

Quote:

Originally Posted by VQStryker (Post 1215848)
driving habbits and tune will dictate your gas mileage.

Within the efficiency performance limits inherent to the mechanical setup...

b1adesofcha0s 07-14-2011 12:14 PM

I put a blend of unicorn blood and horse pop in my gas tank to create an infinite supply of fuel in my gas tank.

/thread

RCZ 07-14-2011 12:37 PM

If you drive it off boost it will be very similar in gas mileage to stock, but don't come in here and tell us you doubled the stock MPG rating by installing a TT kit. You might be running significantly leaner at low rpm while cruising and yeah, you might even be saving gas (very unlikely since you've plugged the exhaust path with a set of turbos).

You're essentially saying "get bigger injectors and your gas mileage will be higher". Thats bs.

bullitt5897 07-14-2011 01:21 PM

Quote:

Originally Posted by b1adesofcha0s (Post 1216212)
I put a blend of unicorn blood and horse pop in my gas tank to create an infinite supply of fuel in my gas tank.

/thread

Unicorn blood has always been my number one choice for fuel additive!

b1adesofcha0s 07-14-2011 01:39 PM

Quote:

Originally Posted by Bullitt@UAMotorsports (Post 1216362)
Unicorn blood has always been my number one choice for fuel additive!

When you mix it with the right amount of horse pop, it produces astounding results.

Econ 07-14-2011 01:41 PM

:wtf2:

Dembflyr 07-14-2011 03:18 PM

Quote:

Originally Posted by b1adesofcha0s (Post 1216396)
When you mix it with the right amount of horse pop, it produces astounding results.

http://www.the370z.com/members/dembf...-horse-pop.png

IDZRVIT 07-14-2011 04:02 PM

Fuel Economy with a GTM TT kit!!!

Hmmmmm, then why aren't all mass produced vehicles TT'd???

Kirkster 07-14-2011 04:11 PM

Quote:

Originally Posted by RCZ (Post 1216250)
If you drive it off boost it will be very similar in gas mileage to stock, but don't come in here and tell us you doubled the stock MPG rating by installing a TT kit. You might be running significantly leaner at low rpm while cruising and yeah, you might even be saving gas (very unlikely since you've plugged the exhaust path with a set of turbos).

You're essentially saying "get bigger injectors and your gas mileage will be higher". Thats bs.

:iagree:

Between this thread and the other thread I find that hip waders are required...

weiboy718 07-14-2011 06:39 PM

weird! my car is sucking the life outta me on gas. don't know how you guys are getting such good mileage and after all Sam tuned my car.

ChrisSlicks 07-14-2011 07:00 PM

Quote:

Originally Posted by weiboy718 (Post 1216833)
weird! my car is sucking the life outta me on gas. don't know how you guys are getting such good mileage and after all Sam tuned my car.

You have a supercharger correct? Off boost you don't have the economy of a turbo as you are still spinning the compressor. Still not buying that a turbo is more efficient than the same motor NA but a turbo is definitely more efficient than a supercharger if you stay out of it.

Billy02987 07-14-2011 07:17 PM

You guys didn't know that the Veyron gets 80mpg and 900 miles to the tank?

weiboy718 07-14-2011 07:23 PM

Quote:

Originally Posted by ChrisSlicks (Post 1216862)
You have a supercharger correct? Off boost you don't have the economy of a turbo as you are still spinning the compressor. Still not buying that a turbo is more efficient than the same motor NA but a turbo is definitely more efficient than a supercharger if you stay out of it.

ya! but then i'm not making any positive boost. not sure if that matters much on the S/C app. still a little disappointed in my fuel mileage. 220 is what i'm making on highway and local driving combined out of a full tank lol

gas price in San Francisco is around $4.17 for 91 octane btw lol.

b1adesofcha0s 07-14-2011 07:38 PM

Quote:

Originally Posted by Billy02987 (Post 1216872)
You guys didn't know that the Veyron gets 80mpg and 900 miles to the tank?

That's nothing, the Veyron Super Sport gets 100 mpg and gets almost 2k miles per tank :eek:

Also 900 miles / 80 mpg = 11.25 mpg which is more like 60% of a tank. :p

Mr.Squeeze 07-14-2011 07:39 PM

Quote:

Originally Posted by weiboy718 (Post 1216882)
ya! but then i'm not making any positive boost. not sure if that matters much on the S/C app. still a little disappointed in my fuel mileage. 220 is what i'm making on highway and local driving combined out of a full tank lol

gas price in San Francisco is around $4.17 for 91 octane btw lol.


That 91 Junk is kind of pricey 93 octane in Jersey cost $3.85

weiboy718 07-14-2011 07:54 PM

Quote:

Originally Posted by Mr.Squeeze (Post 1216908)
That 91 Junk is kind of pricey 93 octane in Jersey cost $3.85

yea yea yea, i hate you guys haha! :icon23:

prescott3656 07-14-2011 08:00 PM

93 = $3.49. :)

Billy02987 07-14-2011 08:21 PM

Quote:

Originally Posted by b1adesofcha0s (Post 1216907)
That's nothing, the Veyron Super Sport gets 100 mpg and gets almost 2k miles per tank :eek:

Also 900 miles / 80 mpg = 11.25 mpg which is more like 60% of a tank. :p

Dammit, I was hoping nobody would double check my math:rofl2:

b1adesofcha0s 07-14-2011 08:26 PM

Quote:

Originally Posted by Billy02987 (Post 1216950)
Dammit, I was hoping nobody would double check my math:rofl2:

:icon18:

I didn't even notice till I was making up my own exaggerated numbers. 100 mpg and 1k miles didn't look right to me and only then did I realize something was wrong :icon17:

Kirkster 07-14-2011 08:38 PM

Quote:

Originally Posted by weiboy718 (Post 1216882)
ya! but then i'm not making any positive boost. not sure if that matters much on the S/C app. still a little disappointed in my fuel mileage. 220 is what i'm making on highway and local driving combined out of a full tank lol

gas price in San Francisco is around $4.17 for 91 octane btw lol.

wow...

combined local and highway I am getting ~19mpg and that is with quite a bit of getting on it..

I generally see 330 out of a tank without sucking it dry...

weiboy718 07-14-2011 08:43 PM

Quote:

Originally Posted by Kirkster (Post 1216960)
wow...

combined local and highway I am getting ~19mpg and that is with quite a bit of getting on it..

I generally see 330 out of a tank without sucking it dry...

man! somethings not right with my car lol. it's sucking wayyyyy too much gas and i'm not even getting on it.

Kirkster 07-14-2011 08:51 PM

I am getting 24mpg pure highway 65~70 mph driving...

ChrisSlicks 07-14-2011 09:07 PM

I get 6 mpg.

RCZ 07-14-2011 09:10 PM

I'm getting around 15...20 if Im super careful.

EVOHUNTER 07-20-2011 04:37 PM

After i installed my stillen kit i filled my car up, said i had 765 kms tell empty which i ussually only get like 380 to tank so i thought that was od.. i started thinking i messed up the level sensor when i installed the fuel pump. And also my tank would never read full, like ever.. i filled it up, it read full which surprised me, ive got 435 kms on this taknk with 2 dots left. im wondering if i did mess up my level sensor? Im using the trip function and not the milage left gauge. Ive been really easy on the car lately, i guess if your not pumping in boost u shouldnt be using anymore gas then before it was FI?

theDreamer 07-20-2011 04:41 PM

Quote:

Originally Posted by ChrisSlicks (Post 1214724)
Exactly this. The trip computer is estimating fuel economy based on "stock" injector pulse width, the trip computer numbers are meaningless.

Fill to fill measuring the number of gallon you put in the tank by the number of miles driven is the only accurate measurement.

EVOHUNTER, read the above quote, should explain what is going on.
I get between 15-20 depending on how I am driving (mostly city with some open highway). Lately I have been getting up on the highway more, but those on ramps are just asking for it. :driving:

DIGItonium 07-24-2011 04:53 PM

My car reports around 22.3 MPG average, and calculated to 21.7 MPG after yesterday's fill up. This is mostly city and some freeway driving to work and around town. So each week I accumulate under 230 mi., and it takes a little over 10 gallons to fill up. All N/A so far of course.

Jeffblue 08-05-2011 01:11 PM

Quote:

Originally Posted by Bullitt@UAMotorsports (Post 1214848)
Guys I am doing my figures from pumping gas (I filled up 19 gal yesterday and drove 300+miles so far and I still havent reached 1/2 tank) and I am using info from the trip computer. both are correlating really closely maybe off by 1-2 mpg... still it does not negate the fact that at an increased hp level the car is under less strain to hold a given rpm...

for example:

maintaining 75mph in 6th gear stock required about 30+% throttle position...
maintaining 75mph in 6th gear TT'd required about 22% throttle position...

I am seeing an increase in motor efficiency and can sustain higher rpm's with less throttle input. Therefore, the motor is able to get higher fuel economy.

mike

btw rcz... I have been driving a TT G37 for 2 months now :tup:

ok none of this makes any sense. First of all how would you actually make it to the gas station with a totally empty tank. Which would have to be the case in order for you to actually fill it with 19 gallons of gas. second, i have no idea why you would run a car with 600whp and an aftermarket turbo kit and built motor and all that stuff with almost no gas in the car, that is just asking for trouble. Third, unless you got a different transmission, your gearing would be exactly the same as ours, and therefore you wouldn't have any reason to be getting better fuel economy. All things being equal, same RPM at the same speed, but with a larger displacement motor and a ton more horsepower, it defies ALL reasoning that your car could possibly get better gas mileage than a stock 370z.

Turbochargers, and any FI system, coupled with larger injectors produces more power by allowing the car to burn MORE air and fuel in the cylinder. You stroked your motor too, allowing it to burn even MORE air and fuel at the same time, producing more power. So burning more air and fuel at the same time means better efficiency?

Your car has more power than any stock 370z because it can burn more air and fuel in a given revolution than a stock vq37. More air and fuel burnt in a given revolution=worse fuel economy.

Just because your motor doesn't have to strain to make the same horsepower as a stock motor, doesn't mean it is more efficient. If a 6ft 300lb Powerlifter can more easily deadlift 500lbs than a 5ft tall 175lb power lifter. However, when they are both walking around the 300lb guy burns more calories to do any activity just because he has a higher metabolism and more mass. Granted, engines aren't people, but its the same principle.

I also don't see the point in making a false statement about increased fuel economy on a high horsepower car. The correct answer to 'how many MPG's do you get?' in your high horsepower, modified car, is 'I don't give a shit.'

Rui Z 08-05-2011 01:23 PM

^^He's talking about his G37 car.

Plus there's so many factors that go into mpg that we really shouldn't care too much about it when it comes to TTing a car.

Jeffblue 08-05-2011 01:29 PM

Quote:

Originally Posted by Rui Z (Post 1246970)
^^He's talking about his G37 car.

Plus there's so many factors that go into mpg that we really shouldn't care too much about it when it comes to TTing a car.

Oh sorry, i thought he was talking about the Z. Either way, same point.

bullitt5897 08-05-2011 01:31 PM

Your confusing my cars...

This was in reference to the G37 TT I bought which by my logs on paper has been getting 27-33MPG shared mileage. And btw the car holds a 20 gal tank of gas.

Jeffblue 08-05-2011 01:34 PM

Quote:

Originally Posted by Bullitt@UAMotorsports (Post 1246997)
Your confusing my cars...

This was in reference to the G37 TT I bought which by my logs on paper has been getting 27-33MPG shared mileage. And btw the car holds a 20 gal tank of gas.

ok either way. Why would you run an aftermarket turbo car down to the empty light. its asking for trouble.

are you under boost or vacuum while cruising?

bullitt5897 08-05-2011 01:43 PM

the power lifter is a bad analogy...

lets look at it this way...

you have a N/A car it makes 300hp then you add ram air system... now it makes 315hp on the same tune... the car uses the same amount of fuel on both applications one just makes more power. Acceleration is now faster meaning getting up to desired speed takes less time so your burn duration is shorter. You are able to use less throttle to maintain that speed even if it is just a small amount...

I am just writing down what the car is getting for mileage... I have driven Hi HP cars for a while now and understand you dont need to flaunt it 24/7 when driving! I find that I can still get great gas mileage with them. Others dont always get similar results because they floor it all the time. SC'ers will get worse mileage than a TT because your always in boost...

bullitt5897 08-05-2011 01:45 PM

Quote:

Originally Posted by Jeffblue (Post 1247009)
ok either way. Why would you run an aftermarket turbo car down to the empty light. its asking for trouble.

are you under boost or vacuum while cruising?

its hard to gauge how much fuel is left cause the gauge drops like a rock and at that point I am babying it like crazy to make a gas station. I am at 3k rpm when I am cruising I will take a snap shot of the boost controller next time I am cruising.

Mike

Jeffblue 08-05-2011 01:51 PM

Quote:

Originally Posted by Bullitt@UAMotorsports (Post 1247036)
the power lifter is a bad analogy...

lets look at it this way...

you have a N/A car it makes 300hp then you add ram air system... now it makes 315hp on the same tune... the car uses the same amount of fuel on both applications one just makes more power. Acceleration is now faster meaning getting up to desired speed takes less time so your burn duration is shorter. You are able to use less throttle to maintain that speed even if it is just a small amount...

I am just writing down what the car is getting for mileage... I have driven Hi HP cars for a while now and understand you dont need to flaunt it 24/7 when driving! I find that I can still get great gas mileage with them. Others dont always get similar results because they floor it all the time. SC'ers will get worse mileage than a TT because your always in boost...

I guess its possible as long as you're not in boost while cruising.

Quote:

Originally Posted by Bullitt@UAMotorsports (Post 1247044)
its hard to gauge how much fuel is left cause the gauge drops like a rock and at that point I am babying it like crazy to make a gas station. I am at 3k rpm when I am cruising I will take a snap shot of the boost controller next time I am cruising.

Mike

see above. I'm not sure how the g28rs (Which i think is the turbo they use on the GTM TT kits) behaves on the 3.7 L motor, when it hits boost etc. But as long as you are in vacuum while cruising, and don't have increased displacement, then it could stand to reason that with the additional bolt ons the car as as part of the TT kit it could be more efficient. But i imagine that would be more in the realm of a few mpg more. not double.

you dont have to take a picture. i'm sure someone can chime in here whether or not you're in boost while cruising with the TT kits on this car.

Nixlimited 08-05-2011 01:52 PM

Regardless, a 600HP TT car getting substantially better gas mileage than a stock-trim car defies logic, unless somehow it is only driven downhill.

bullitt5897 08-05-2011 01:56 PM

Seriously... have you guys not been able to get 30mpg in your Z?

I averaged 90mph and got 29.8 mpg from atlanta to chicago!!! its not that drastic!!!

Jeffblue 08-05-2011 02:03 PM

Quote:

Originally Posted by Bullitt@UAMotorsports (Post 1247085)
Seriously... have you guys not been able to get 30mpg in your Z?

I averaged 90mph and got 29.8 mpg from atlanta to chicago!!! its not that drastic!!!

on one fill up i averaged 28mpg, but other than that its solidly around 18mpg. (gas cubby iphone ap)

bullitt5897 08-05-2011 02:12 PM

its all in driving habits...


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