MPG whats your combo?

64 Hooch Hauler

Number of posts : 84
Location : Holstein, IA.
Registration date : 2013-07-19

MPG whats your combo?

Post by 64 Hooch Hauler on Mon Apr 21, 2014 6:13 pm

I have a 65 sportvan, 3speed 230 motor. Both under 3K miles. Rear gears are 3.36? Tires are 205/70/14

Plugs look good. HEI
I get 12-13mpg.
Space Truckin

Number of posts : 1212
Location : Upland,Ca
Age : 62
Registration date : 2009-10-17

Re: MPG whats your combo?

Post by Space Truckin on Mon Apr 21, 2014 6:21 pm

I have a 67 w 350sb, 200 4r, 3:36 posi/ 275/60/15 rear tires giving me an effective rear end ratio of 3:13's +/-, and mpg 12-14. Note unknown mileage on engine

Number of posts : 1453
Location : Tacoma, WA
Age : 44
Registration date : 2009-05-22

Re: MPG whats your combo?

Post by kookykrispy on Mon Apr 21, 2014 9:05 pm

Wiki-van is 230 inline, HEI, rochestor mono jet, t10 4 speed, 2.56 rear gears, 295/50r15, it gets about 15 mpg, but I drive fast everywhere, 70 mph on the freeway. Would probably get better if I slowed down but I don't want to.

Hella Sunshine is a 305HO, holley 390cfm 4 bbl, HEI, th350, 3.36 gears, 325/50r15, about 11-12 mpg, but again I cruise in the fast lane at 65-70. Its worth paying a little extra ga$ to haul ass. Puttin along in the slow lane saves gas, but its no fun

If I care about fuel economy I'll drive my 94 civic. These vans get really crappy fuel economy because you are pushing a flat windowed brick through the air. Its hard to imagine a worse shape for aerodynamics

Number of posts : 774
Location : kcmo
Age : 57
Registration date : 2009-10-04

Re: MPG whats your combo?

Post by panelmanrd on Tue Apr 22, 2014 11:02 am

68/108 350/700r4 3.36 throttle body injection 19 mpg@ 75 mph

Number of posts : 655
Location : Eastpointe MI
Age : 57
Registration date : 2008-09-22

Re: MPG whats your combo?

Post by vanner68 on Tue Apr 22, 2014 5:40 pm

68/108, 350 4bbl 3 speed manual, 4:11.

Can get 15mpg if I keep it under 90mph.

Only time I kept track was on the trip to the nats last year, at 60mph I got 17-ish mpg and a lot of pissed off people behind me.

On the way back I said screw it and went with the flow of traffic and got 14-ish.
Joe Van
Moderator 1st Class
Moderator 1st Class

Number of posts : 4619
Location : Ocala fl
Registration date : 2012-10-11

Re: MPG whats your combo?

Post by Joe Van on Wed Apr 23, 2014 4:44 am

66 GMC 307 V8, Holly 600 Carb, Turbo 350 Trans, 373 gears, 275/60/15 tires on rear, Normal Cruising 10-12 MPG.....
diamond dave

Number of posts : 565
Location : canal fulton, ohio
Registration date : 2012-04-24

Re: MPG whats your combo?

Post by diamond dave on Tue May 06, 2014 8:31 pm

just did my fuel mileage today, and found that i'm getting a little over 17. that's about half freeway and half city. kept it under 60mph.
69 chevy 230cid 3 speed and 373 rear.
but, I also found that my gas pedal is worn out at the stem on the floor, and is only allowing my to get about 60% throttle. so, the carb isn't wasting a lot of fuel either. i'm hoping to get better once I put my HEI in.

Number of posts : 3752
Location : United States Six Lakes MI
Registration date : 2008-05-17

Re: MPG whats your combo?

Post by Digz on Wed May 07, 2014 3:28 am

350/700r4/4:11 rato on 295/50/15s ( 26.5" tall)= 13.5 mpg total weight 3640lbs That's an average mixing some Highway(70+ mph) and secondary roads. Happy place seems to be around 60 mph/2100 rpm the way I have the engine thrown together.

Number of posts : 6186
Location : spokane ,Wa.
Registration date : 2009-09-28

Re: MPG whats your combo?

Post by Twinpilot001 on Wed May 07, 2014 6:00 am

wow!!!!!!!!!! Im Happy to see everyones =Honest!! Id say if were looking for over 20 mpg -its going to have to be Injected!! yet - costly to do V/S mileage gains. 15-17 mpg isnt bad at all!! all we need is 2.00 a gallion gas!!!!!!!!!!!!cheers

Number of posts : 111
Location : northern wisconsin
Registration date : 2011-07-15

Re: MPG whats your combo?

Post by slowrider on Fri May 09, 2014 1:44 pm

Now idont feel so bad.My 65 with a350 4barrel holley and hydraglide gets between 9 and 11 depending on how heavy footed i drive.

Number of posts : 67
Location : New York
Age : 41
Registration date : 2014-04-01

Re: MPG whats your combo?

Post by Coop on Fri May 09, 2014 5:25 pm

I have no clue. I'll let you know as soon as I hook up my speedo (hope this weekend)lol
diamond dave

Number of posts : 565
Location : canal fulton, ohio
Registration date : 2012-04-24

Re: MPG whats your combo?

Post by diamond dave on Mon May 12, 2014 6:33 pm

just took it to my first van in, and got just under 17mpg. but, it was a lot of big hills, and lots of crazy crosswinds fighting me the whole time. still not too bad.
dan nachel

Number of posts : 394
Location : sc
Age : 63
Registration date : 2012-01-24

Re: MPG whats your combo?

Post by dan nachel on Tue May 13, 2014 7:05 pm

302-edelbrock 600-t5 trans-3:73 rears-31x10.5x15 tires------11.7 mpg. Going to change rear soon. I'm thinking 3:08.
Magic Bus

Number of posts : 1420
Location : -Gateway to the West - St Louis Missouri
Registration date : 2009-12-02

Re: MPG whats your combo?

Post by Magic Bus on Tue May 13, 2014 7:24 pm

Ive had my van 5 years now and still havent ran a tank of gas through it yet! So I guess thats like 5 years to a half a tankful?

But Im getting closer to being roadworthy...mirrors, one door window assembly, carpet...almost there!

Number of posts : 1878
Location : Where Rust Never Sleeps in Ft Wayne IN
Registration date : 2008-05-15

Re: MPG whats your combo?

Post by savage on Wed May 14, 2014 4:44 am

Trip up to G-man Memorial I got 19.5(if my math is right??)in my 64 Chevy Nodoor. 68 250 (out of Nova),HEI (from 84 pickup),Monojet carb,(seems way to rich)3 on tree,not sure on rear end gears?? Tom said we were doing 68+- most of the way up. Probaly be alot better if I when slower(didn't want to be late)

Number of posts : 692
Location : Long Island, New York
Registration date : 2009-04-05

Re: MPG whats your combo?

Post by Donn on Wed May 14, 2014 5:21 pm

Worked 302 V8 .. don't know the mpg but it gets there quick!

Number of posts : 72
Location : Vermont
Registration date : 2013-03-11

Re: MPG whats your combo?

Post by NEK64 on Mon May 19, 2014 9:29 am

Great picture Donn!
While waiting for my new windshield rubber I went for a cruise without the windshield...I didn't go far enough to check my mileage but I'm guessing it HAD to be than the average 12-14 mpg! A bit breezier also!

Number of posts : 343
Location : Smell-A, CA
Registration date : 2011-10-11

Re: MPG whats your combo?

Post by Xelmon on Mon Jun 16, 2014 2:17 pm

'69, 90" window
250 1-barrel, HEI // 200R4 // 3.06 // 195/75R14 = About 16.5MPG last I really checked.

I recently ( finally ) got my Lock-up hooked up, so it may have improved 1-2MPG.

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Re: MPG whats your combo?

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