'74-79 Mpg???
Thread Starter
Intermediate
Joined: Jun 2003
Posts: 35
Likes: 0
From: glencoe AL
'74-79 Mpg???
I have been the happy owner of an '86 Z51 for the past year and a half. Now I am wanting to get a C3 for a daily driver. The trek I make to work everyday is all highway miles. I was wondering what kind of gas mileage I could expect for a '74'-'79 Vette? I know it won't be as good as my '86, but just curious. Thanks in advance.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by jiangtao75
I have been the happy owner of an '86 Z51 for the past year and a half. Now I am wanting to get a C3 for a daily driver. The trek I make to work everyday is all highway miles. I was wondering what kind of gas mileage I could expect for a '74'-'79 Vette? I know it won't be as good as my '86, but just curious. Thanks in advance.
my 77 L48, th350 gets 14.5 highway and only goes down from there...
Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
The simple answer is "no" -- the mid-70s Corvettes will NOT get anywhere near as good gas mileage for one simple reason: the 70s Corvettes were carbureted, and the 80s cars had fuel injection.
Solution? Retrofit a TPI fuel injection system into a 70's Vette.
And, as mentioned, an OD tranny helps a lot, too
Solution? Retrofit a TPI fuel injection system into a 70's Vette.
And, as mentioned, an OD tranny helps a lot, too
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Melting Slicks
Joined: Jul 2002
Posts: 3,000
Likes: 22
From: Boulder Creek California
Last time I measured I got 15-16mpg. Driving on the highway... quickly. That was with upgraded intake and cam. With new heads, headers, and 2.5" exhaust (up from 2") it seems to be a little worse, but not too terrible.
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