People with Head\cam work...
Melting Slicks
Joined: May 2000
Posts: 2,974
Likes: 5
From: CenTex Texas
Re: People with Head\cam work... (Jackal)
I've had my H/C for almost a year now and i still can't tell if my gas mileage was affected........but then i haven't really been looking at it.:) I would say yes, but not by much.
Drifting
Joined: Aug 2000
Posts: 1,835
Likes: 0
From: NY
Re: People with Head\cam work... (Jackal)
Yes big time since your driving style changes to apreciate the more power at hand :D I can still get 27mpg on the highway cruising at 70 in 5th gear but that never happens much since I usually keep it in 4th unless I'm going past 140mph :yesnod:
Burning Brakes
Joined: Oct 2000
Posts: 1,094
Likes: 2
From: Seattle suburb wa
Re: People with Head\cam work... (Jackal)
yes, gas mileage is in the toilet :)
before motor work, I averaged about 18 mpg, overall, taking everything into account, per tank, not counting tanks where I was on track.
now, I barely get 15. but the big diff is that before, I noticed if I took it easy, and had a mostly freeway tank that I'd be up in the mid 20's. now, it seems I just drink it like a lush. well, that extra 110 rwhp gotta cost sumtin!
:)
David
"life is too short to worry bout gas mileage"
before motor work, I averaged about 18 mpg, overall, taking everything into account, per tank, not counting tanks where I was on track.
now, I barely get 15. but the big diff is that before, I noticed if I took it easy, and had a mostly freeway tank that I'd be up in the mid 20's. now, it seems I just drink it like a lush. well, that extra 110 rwhp gotta cost sumtin!
:)
David
"life is too short to worry bout gas mileage"
Former Vendor
Joined: Nov 2000
Posts: 5,607
Likes: 1
From: Houston TX
Re: People with Head\cam work...
Even before the heads&cam, my city driving milage is already at 12-15mpg because I go WOT (safely, of course :rolleyes: ) at every single chance I get. :D:D:D I paid big money to get to the ~400rwhp range, you bet that I will use all of it, at least daily.
And now, after the heads&cam, I can't imagine what my MPG is.
And now, after the heads&cam, I can't imagine what my MPG is.
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
Re: People with Head\cam work... (Jackal)
Actually, mine got better! I have a mild cam (218/218 dur, 114 lsa, .561 lift) and high compression (11.4:1), which helps efficiency. Before the heads/cam I got 18 to 19 city, after I got 19 to 20. On a long trip with cruise set at 85 I got 32 MPG before, after I got 34, same trip, same speed. The 3.73 gears DIDN'T help MPG, but are much more fun. :D
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Le Mans Master
Joined: Sep 2000
Posts: 6,976
Likes: 527
From: Clouds Over California
Re: People with Head\cam work... (my00c5)
Dude those GNx's were sure fun when they came out. I remember the GNx in 1988, it looked like this all black grandma car, but yet could turn a high 12 sec. 1/4 mile! :D
If you need some H&C I am selling mine. The heads are like brand new and I made 430/400 RWHP/RWTQ, that was not open header either, and using heavier wheels and tire combo! Email if your interested.
If you need some H&C I am selling mine. The heads are like brand new and I made 430/400 RWHP/RWTQ, that was not open header either, and using heavier wheels and tire combo! Email if your interested.
Le Mans Master
Joined: Apr 1999
Posts: 7,820
Likes: 0
From: Burlington ON
Cruise-In I, II, III, IV & V Veteran
CI-I & II Auto-X Champ
Re: People with Head\cam work... (Shinobi'sZ)
My fuel economy at 80mph in 6th gear has never really changed from stock. I averaged 27mpg driving home from Bowling Green stock, with heads/cam and now with my 436ci stroker.
I would say your city driving fuel economy will go down because you will have your foot it in quite a bit more. Either way, the extra power is MORE than worth the loss of a few mpg!
I would say your city driving fuel economy will go down because you will have your foot it in quite a bit more. Either way, the extra power is MORE than worth the loss of a few mpg!
