alumnium wheels??

prepowerstroke

Full Access Member
Joined
May 24, 2012
Posts
355
Reaction score
0
Location
tuscarawas county ohio
hey guys im getting aluminum wheels for my truck and i heard somewhere they increase mpgs because they are lighter? is there any truth to this? like 1.5 to 2 mpgs better?
 
Joined
Aug 2, 2012
Posts
788
Reaction score
44
Location
Poway, CA
Anytime you can reduce rotational mass, you're going to benefit. But 2 MPG better? Seems a bit optimistic.

Mike
 

fordf350man

Full Access Member
Joined
Nov 3, 2012
Posts
838
Reaction score
1
Location
Rockwood MI
as said above they will help with fuel mileage, but i dont know how much get em on and let us know
 

bab029

Full Access Member
Joined
May 3, 2009
Posts
338
Reaction score
0
Location
LA
In the interest of the scientific method, change one thing at a time so you can know what does what. Oh, and share with us when you find out!
 

Knuckledragger

blowing chunks and grabbing porcelain
Joined
Nov 7, 2008
Posts
2,340
Reaction score
234
Location
Payson, AZ
Anytime you reduce unsprung weight, you also get better handling characteristics. May not apply to some of our trucks, but something to think about, in case you go to a slalom. Not sure how much weight, if any, is saved by the change from steel to aluminum wheels. I'll try weighing some and will post the results here.
 
Joined
Aug 2, 2012
Posts
788
Reaction score
44
Location
Poway, CA
I've got a set of OBS Alcoas that I'm looking to throw on at the end of the week. I'll weigh 'em out and post up as well.

Mike
 

73idi88f350

Full Access Member
Joined
Apr 16, 2012
Posts
403
Reaction score
4
Location
michigan
my dually alcoas felt lighter with a tire on it then the steel wheels with out a tire. im pretty sure my alcoas alone only weighted like 19lb with out a tire.
 

DragRag

Registered User
Joined
Aug 8, 2008
Posts
2,031
Reaction score
2
Location
Los Angeles, California
Turning up the pump is not going to give you any better mileage, ever, period. Now, advancing the timing could, especially if your running your timing a bit on the retarded side, which most trucks seems to be, especially after the pump has been in place for a while, and worn. Increasing two flats will only increase fuel flow. Set the timing on it, I like about 9.5 btd. The wheels should help a touch, u might get .25 mpg out of them. Advancing the timing to 9+ will help you out more. Stay below 10 degrees though.
 

GOOSE

Happy IDI'er
Joined
Jun 5, 2009
Posts
3,514
Reaction score
316
Location
Galloway Twp, NJ, USA
thanks guys but i am wondering will it kill my mpgs by turning the pump up 2 flats?

Turning your pump up 2 flats will allow your FOOT to kill the mileage. That's kind of how it works. I hope you have a pyro as well, n/a engines get hot real fast with some extra fuel.
 

NO_SPRK

User & Abuser
Joined
Nov 12, 2011
Posts
1,571
Reaction score
11
Location
Santa Rosa, Ca
Long term with no Turbo yea you will loose MPG. You will constantly be searching for a sweet spot that will still pull a load but not burn up your pistons. Plus at first you will be excited and hot rodding around

Your eye will be on the exhaust or egt gauge. If you have free flowing exhaust and intake its not so bad. Stock exhaust really puts a damper on turning up N/A engines
 

DragRag

Registered User
Joined
Aug 8, 2008
Posts
2,031
Reaction score
2
Location
Los Angeles, California
As stated turning up the pump will result in a net loss in mpg's. Advance/set the timing, install pyro, and then turn up the pump IN THAT order. Your going to be wanting a turbo.....
 
Top