dxp@pyuxhh.UUCP (D Peak) (07/13/84)
I feel that I have to let as many people as possible in on this.
I recently added headers to my '77 Z28 mostly for an increase in
power,but have been extremely surprised at my increase in my mpg
figures.I used to get 14-15.5 miles per gallon but the last 3
tankfuls have returned 18-19 mpg which is an increase of 25-30%.
Now before you all rush out and buy headers ,the ones I bought
are Cyclone's AR-1 header (~$125) . I had seen that they make
some pretty radical claims in their advertising but it seems
that it has pretty solid foundation.
I can't say that I've noticed that much increase in power but
I need a top end overhaul (worn valve guides etc) and may see
more power incease when thats completed.
--
Dave Peak (pyuxhh!dxp)
" Don't forget, Lady Godiva put everything SHE had on a horse ! "
- W.C. Fieldsottj@ecn-ee.UUCP (07/15/84)
#R:pyuxhh:-67700:ecn-ee:12500002:000:80
ecn-ee!ottj Jul 15 02:09:00 1984
HMMMMMMM...30% increase? Did you also take off your c-converter???dxp@pyuxhh.UUCP (D Peak) (07/16/84)
Did you take off your c-converter ????
The c-converter no longer remains on the car !!!!
--
Dave Peak (pyuxhh!dxp)
" Don't forget, Lady Godiva put everything SHE had on a horse ! "
- W.C. Fieldsdavew@shark.UUCP (Dave Williams) (07/17/84)
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If all you did was put headers on your car and you got
about a 30% increase in mpg then one or both of these
things happened: your carburetor was set very rich and
the headers leaned out the mixture or you also took off
some smog control goodies like the catalytic converter.
Now, since we are on the subject of fuel economy.
I have a '77 Chevy pick-up with a 454 CI engine that I
use to pull a 28 foot travel trailer with. I am currently
getting about 7.5 mpg. One of the things I plan on doing
is adding a wind deflector to the top of the cab when I
am pulling the trailer as it is catching alot of wind
and these devices are claimed to give a 10-15% increase
in mpg. I was also thinking of adding a water injection
system, such as a Holley or Edelbrock. I then could advance
the timing several degrees which should help gas mileage as
well as power. Has anyone out there had any experience with
these units? I would like to hear from you.
Dave Williams
Tektronix, Inc.
ECS