TT MPG?
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Joined: Mar 2007
Posts: 477
From: Temecula & Camp P
most people should get the same or better gas mileage while being turbo. the key is being TUNED(professionally), while the car is in vac it should get as good mileage as any other tc. mileage starts to go down when the car is boosting, this could be a very hard thing to stay out of because boosting is so much fun.
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Joined: Nov 2006
Posts: 1,480
From: Arizona
The kit itself does't have allot to do with your actualy mileage (other than the psi you run, size turbo etc)
The TUNING is the most important part when it comes to fuel mileage.
If you are not in a rush and can spend the money on extra dyno time you will be suprised with the fuel mileage you can get.
+ if you are wanting a kit and are looking for gas mileage pick a relatively smaller turbo(50 trim) and keep the boost low (5-7psi) and smaller injectors.
enjoy!!!
Regards-
Todd
The TUNING is the most important part when it comes to fuel mileage.
If you are not in a rush and can spend the money on extra dyno time you will be suprised with the fuel mileage you can get.
+ if you are wanting a kit and are looking for gas mileage pick a relatively smaller turbo(50 trim) and keep the boost low (5-7psi) and smaller injectors.
enjoy!!!
Regards-
Todd
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Joined: Aug 2004
Posts: 9,061
From: VEGAS BABY!
I have a smaller TT kit...I was getting about 24mpg before and 22mpg after...mostly freeway but I get into mild boost alot.
Haven't calculated since the retune, but I know it's worse...cause I've been pushing the new 9psi setting alot!
Haven't calculated since the retune, but I know it's worse...cause I've been pushing the new 9psi setting alot!
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Joined: Jan 2007
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From: THE P H X
Im now back up to 10.5psi...got her retuned monday and went up 3psi...got a gain of 45 whp & wtq. BUT thats not all, power comes in super early and now it holds all the way to redline whereas it would poop out a bit before...the car is insanely smooth to drive and the power deliver is so linear.
The shop was hot though...10:00am and it was already 92 degrees! and had crappy gas in the tank too (had just got back from the grand canyon and all there was was a GIANT station)
As far as MPG goes...havent really tested it @ 10.5psi but at 7.5psi i went to the Grand Canyon, drove around a bit, got lost, stopped and visited and came all the way back to Phoenix...took about 21 gallons round trip (23.8 MPG)...so not too bad!
The shop was hot though...10:00am and it was already 92 degrees! and had crappy gas in the tank too (had just got back from the grand canyon and all there was was a GIANT station)
As far as MPG goes...havent really tested it @ 10.5psi but at 7.5psi i went to the Grand Canyon, drove around a bit, got lost, stopped and visited and came all the way back to Phoenix...took about 21 gallons round trip (23.8 MPG)...so not too bad!
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Joined: Aug 2004
Posts: 9,061
From: VEGAS BABY!
Originally Posted by CarbonXe
Injector size? How much fuel are you pulling (F/IC)?
Also, Meaty, isn't your tune set up for a 16-17 cruising AFR?
Also, Meaty, isn't your tune set up for a 16-17 cruising AFR?
Full boost is a little rich though, so on boost and off boost MPG are dramatically different.
650cc injectors here.
Joined: Mar 2007
Posts: 16,638
From: Parsippany, NJ
Originally Posted by Mr_Meaty
Originally Posted by CarbonXe
Injector size? How much fuel are you pulling (F/IC)?
Also, Meaty, isn't your tune set up for a 16-17 cruising AFR?
Also, Meaty, isn't your tune set up for a 16-17 cruising AFR?
Full boost is a little rich though, so on boost and off boost MPG are dramatically different.
650cc injectors here.
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Joined: Apr 2008
Posts: 1,049
From: Valley Stream, NY
Originally Posted by CarbonXe
Originally Posted by Mr_Meaty
Originally Posted by CarbonXe
Injector size? How much fuel are you pulling (F/IC)?
Also, Meaty, isn't your tune set up for a 16-17 cruising AFR?
Also, Meaty, isn't your tune set up for a 16-17 cruising AFR?
Full boost is a little rich though, so on boost and off boost MPG are dramatically different.
650cc injectors here.
lol ...you know by putting "dont click this link" i have to click it...dang haha
lol knowing how much mpg when in boost is a joke, how the hell would you guys know when you never stay in boost all the time.. but yeah at certain loads, rpms and crusing speed my afrs is set different.. my mpg is between 22-30
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Joined: Jul 2007
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From: Arizona
Yes, the turbocharger kit will reduce your MPG. Turbo kits on an internal combustion motor are not economizers and cannot be constructed as such. There is no engineering basis for making such a claim.
When not operating under boost, a turbo charger is a small system restriction. This restriction causes a small loss in volumetric efficiency. Volumetric efficiency and fuel economy are definitely tied together. If your driving habits are the same as N/A your mileage will drop 10% city and 5% highway. Those numbers are only an estimate.
Turbo kits are designed for making power not helping you at the pump.
After seeing Todd's kit firsthand. They are well constructed and worth the wait. They have awesome power numbers. There is not a turbo kit out there that will give you power AND improve your fuel economy. Its just not possible
When not operating under boost, a turbo charger is a small system restriction. This restriction causes a small loss in volumetric efficiency. Volumetric efficiency and fuel economy are definitely tied together. If your driving habits are the same as N/A your mileage will drop 10% city and 5% highway. Those numbers are only an estimate.
Turbo kits are designed for making power not helping you at the pump.
After seeing Todd's kit firsthand. They are well constructed and worth the wait. They have awesome power numbers. There is not a turbo kit out there that will give you power AND improve your fuel economy. Its just not possible