do headers increase fuel mileage too? if so, by how much? another thing, a shop told me that they might have to "tilt" my engine to put them on! they also said I was looking at about 9hrs of labor to get em in. Does this sound right?
9 hours?! I would find another shop. Assuming a $50 shop rate, that's $450 in "labor" just to install headers....
Is there any reason you can't put them on yourself? All it requires is basic hand tools (wrenchs, ratchet/sockets). Once they are on, drive it (LOUDLY ) to a muffler shop to have the exhaust pipes connected to the header collectors.
Sounds like some shop is adding the lunch at the local Ti++y bar into your bill. Loosening a motor mount I can see but 9 hours is unacceptable, next they will want to charge you rent for the vehicle staying in their shop over night.
All other things being equal and in good running order, and if you have good stock cast iron manifolds, whatever small gains you might make by installing headers won't be worth it, in my opinion as far as gas mileage goes, or even performance.
For truck mileage and power purposes, you'd be almost as well off with stock manifolds and head pipes melded into a three inch diameter single system from the "Y" on back. You may gain a mile or two per gallon with headers, may not... mainly because of the size of vehicle you're pushing through the wind... and the weigth, tire width, rolling resistance etc..
However, shiny headers are pretty and sound nice...
78RC, we really would be helped if you would answer a question i've asked in every single post on this topic so far:
What gas mileage ar you getting now?
this will give us something to go on. for example: if you are geting 4 mpg, then your truck needs serious help. if you are getting around 12-15, there isn't a whole lot you can do if you still want it to be able to wheel.
i'm getting exactly 10 mpg. But I'm a college student, thats why I'm always bothering you guys trying to find ways to save gas. . I'd love to get 15! I think I'm going to have a diagnostics done and find any compression/vacuum leaks or rich air fuel.--also my friend does "lightening" on his euro cars and said that we might be able to reduce the weight in my rc by almost 300lbs w/ the top, my toolds, the back seat, all my junk, and all terrain tires instead of mud terrain tires. I'm also looking at replacing some of the body with a lighter material.
Dont forget that the more power you have from a set of headers the more you'll want to use it. but if you get a set get long tube headers, the step headers from TTI are really nice but kinda expensive compaired to some cheap shorties but the preformance is noticeable. just my $0.02
Actually Joe got to it 1st with the wheels, i would recommend the hedman step headers.
Lose as much weight as possible, i went to an aftermarket fiberglass hood, headers, carb, intake, single exhaust, aside from alum wheels, pay attention to tire weights too some tires are insanely heavier than others.
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