383 Gas Mileage?
03-19-2014, 08:25 AM
#1
Junior Member
Thread Starter
Join Date: Jan 2013
Posts: 86
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1985 Camaro Z28
Engine: Work In Progress
Transmission: 700R4/2200 stall/Shift Kit
Axle/Gears: 7.5 Richmond 3.73/Gov Loc Posi
383 Gas Mileage?
Ok I know this a stupid thing to ask because "gas mileage isn't supposed to matter" but I am still really curious on what my 85 would get if I put a 383 in it. 9.5:1 compression
With dart SHP heads (180cc/ 64cc), a roller cam (233/241 @0.50), weiand x-celrator intake (2000-6500), a holley 750 DP.
The transmission is a 700R4 with a non lockup 2200 stall and 3.73s in the rear on a 275/60/15
Also the car is gutted except two front cloth 4th gen seats.
With dart SHP heads (180cc/ 64cc), a roller cam (233/241 @0.50), weiand x-celrator intake (2000-6500), a holley 750 DP.
The transmission is a 700R4 with a non lockup 2200 stall and 3.73s in the rear on a 275/60/15
Also the car is gutted except two front cloth 4th gen seats.
Last edited by Camaro199677; 03-19-2014 at 08:39 AM.
03-19-2014, 09:30 AM
#2
Member
iTrader: (18)
Join Date: Jan 2014
Location: NJ
Posts: 412
Likes: 0
Received 1 Like
on
1 Post
Car: 90 formula, 89 formula 350 vert
Engine: 305, 355
Transmission: T5, t56
Axle/Gears: 3:45 9 bolt, 8.8 3:73
Re: 383 Gas Mileage?
Not much, maybe 15mpg if your lucky. Having no lockup and 3:73 gears is what will bring gas mileage down. I have a non lockup 700r4 and 3:70 gears and I was getting between 12-14 mpg. How well your carb is tuned will also make a difference.
03-19-2014, 11:20 AM
#3
Supreme Member
Re: 383 Gas Mileage?
well it is a valid question for a street car.
My 383 got 12-13 mpg. Driving it spirited... I never checked mileage driving it normally.with a 700R4 non-lockup converter & 3.73 gears.
Pretty similar combo to yours, except I had projection 4Di.
So yes 12-13 mpg with a 15 gallon stock fuel tank = 180 mile driving range.
My 383 got 12-13 mpg. Driving it spirited... I never checked mileage driving it normally.with a 700R4 non-lockup converter & 3.73 gears.
Pretty similar combo to yours, except I had projection 4Di.
So yes 12-13 mpg with a 15 gallon stock fuel tank = 180 mile driving range.
Thread
Thread Starter
Forum
Replies
Last Post
