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Re: 440 Gas Mileage-Car? [Re: wyotech_cuda440] #767923 08/07/10 08:15 PM 08/07/10 08:15 PM
Joined: Nov 2007 Posts: 21,928 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,928 Kirkland, Washington	Quote: Quote: Well THAT'S what a couple-a Berri-Crabs will getcha' ! I got berri-crabs AGAIN!?!? Dang, gotta go call the Doc for an appt. Better hurry, take the car with the Holley carbs--you want to get there FAST!

Re: 440 Gas Mileage-Car? [Re: Pacnorthcuda] #767924 08/08/10 07:42 AM 08/08/10 07:42 AM
Joined: Jan 2003 Posts: 6,416 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,416 nielsville, minn.	Doc is right, a sharply tuned thermoquad is the ticket. Do yourself a favor and buy a LM-1 or similar device. You will find it was the best money you ever spent. Dave

Re: 440 Gas Mileage-Car? #767925 08/08/10 09:31 AM 08/08/10 09:31 AM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	Quote: Pffft~! He wants it to run down the highway not melt/warp the plastic TQ body all over the motor and go up in flames... Used to pull down 14-15 with .528/284 mechanical cammed, Holley 750 3310 and header equipped '71 Barracuda. 3.23 gears made 70 mph a breeze. With 4.10's you're going to be limited to 60mph if you want to see any better than 10. Wow, a whole post of junk here. Nothing wrong with the Tquad in COMPETENT hands. I ran a set of 4.10's in my 300, got 15 mpg from Memphis to Tucson and I ran it at 75+ most of the way. It's all in the combo. I had a set of 3.23's in it that got WORSE mileage because of the combo. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: 440 Gas Mileage-Car? [Re: Supercuda] #767926 08/08/10 10:32 AM 08/08/10 10:32 AM
Joined: Jan 2004 Posts: 910 Southern Oregon T toyotajeep OP super stock
toyotajeep OP super stock T Joined: Jan 2004 Posts: 910 Southern Oregon	I am running an 8.25 right now so gear changes are not as easy as an 8.75. Building an 8.75 later this winter, but right now the 8.25 stays with its 4.10's. I am thinking something like 3.23's and some 28" tires with a Thermoquad for daily use. I have three dragstrips that are all around 100-120 miles away so the drags will not be a daily thing. Ten years ago I got the grand idea to move about 20 miles from anywhere. And they I got the grander idea to build a fast, older car. The grandest idea however was when I realized that they first two ideas were not so grand for daily driving a 40 year old car It is all good. I will hopefully get to drive it this week Keep in mind that this has been a 5 year project full of vigorous starts, and long periods of rest etc. Lots of interesting discussion here. I must have asked the wrong question though. I was just wondering what types of BB cars got what for mileage. Sounds like we have some mean machines at 4 MPG and some mileage kings too. ROB 1989 Dodge Cummins & 1989 Dodge W-250

Re: 440 Gas Mileage-Car? [Re: toyotajeep] #767927 08/08/10 11:13 AM 08/08/10 11:13 AM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	The cam you are running is milder than mine was, which was mild too. I consider anything under .5" lift to be mild. I had a stick shift though, so converter slippage was not an issue for me. You have to remember that part of the reason OEM's went to lock up converters was because of highway gears, tall tires and mileage issues. I once ran a 360 powered Dart with 2.26 gears, tall tires and a non-lockup trans, which got worse mileage than the 413 powered 300 with 4.10 gears, because the converter was always slipping at legal speeds. You may wish to do a bit of math and see what your highway RPM might be. I did one for you, at 60 mph, with 3.23 gears and a 28" tall tire you are looking at about 2300 rpm, this is no converter slippage. As long as your converter stall speed is below this you ought to be ok. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: 440 Gas Mileage-Car? [Re: Supercuda] #767928 08/08/10 11:29 AM 08/08/10 11:29 AM
Joined: Jan 2004 Posts: 910 Southern Oregon T toyotajeep OP super stock
toyotajeep OP super stock T Joined: Jan 2004 Posts: 910 Southern Oregon	I'm using the factory high stall convertor from behind a 360. From what I gather, it should stall somewhere around 2200ish. Others may know for sure. ROB 1989 Dodge Cummins & 1989 Dodge W-250

Re: 440 Gas Mileage-Car? [Re: Supercuda] #767929 08/08/10 02:58 PM 08/08/10 02:58 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Quote: Pffft~! He wants it to run down the highway not melt/warp the plastic TQ body all over the motor and go up in flames... Used to pull down 14-15 with .528/284 mechanical cammed, Holley 750 3310 and header equipped '71 Barracuda. 3.23 gears made 70 mph a breeze. With 4.10's you're going to be limited to 60mph if you want to see any better than 10. Wow, a whole post of junk here. Nothing wrong with the Tquad in COMPETENT hands. I ran a set of 4.10's in my 300, got 15 mpg from Memphis to Tucson and I ran it at 75+ most of the way. It's all in the combo. I had a set of 3.23's in it that got WORSE mileage because of the combo. Really?!? ...and just what part of it was "junk"!??! I'm guessin' it was the part about the Thermobog. Hey, if you wanna play around with obsolete parts that are warped, cracked and extremely difficult to get rebuild kits for, that's on you. If you want something that works and is currently available... Doesn't mean my opinion is "junk".

Re: 440 Gas Mileage-Car? [Re: Supercuda] #767930 08/08/10 03:53 PM 08/08/10 03:53 PM
Joined: Oct 2004 Posts: 480 Kentucky, USA D derekeh mopar
derekeh mopar D Joined: Oct 2004 Posts: 480 Kentucky, USA	How did you cruise at 75+ with 4.10 gears? I had 3.23 gears in my cuda and 75 mph was about my top cruising speed. You had to have had that thing wound out!

Re: 440 Gas Mileage-Car? #767931 08/08/10 04:48 PM 08/08/10 04:48 PM
Joined: Jul 2008 Posts: 30,632 Florida STAYcation IcorkSOAK Financed his waterbed
IcorkSOAK Financed his waterbed Joined: Jul 2008 Posts: 30,632 Florida STAYcation	Quote: Doesn't mean my opinion is "junk". Why YES ... it does ! .....

Re: 440 Gas Mileage-Car? [Re: derekeh] #767932 08/08/10 05:33 PM 08/08/10 05:33 PM
Joined: Jul 2008 Posts: 30,632 Florida STAYcation IcorkSOAK Financed his waterbed
IcorkSOAK Financed his waterbed Joined: Jul 2008 Posts: 30,632 Florida STAYcation	Quote: How did you cruise at 75+ with 4.10 gears? I had 3.23 gears in my cuda and 75 mph was about my top cruising speed. You had to have had that thing wound out! Can't ferrget .... to Mayor Dave - gotta' hear MORE about yurr E85 conversion ideas. And to Sc - some of those people from KS are still missing a brain ! .. TOP cruising speed at 75 ? .... you will have to 'splain this further. What was your TOP speed ?

Re: 440 Gas Mileage-Car? [Re: toyotajeep] #767933 08/08/10 05:56 PM 08/08/10 05:56 PM
Joined: Mar 2005 Posts: 2,060 Pendleton NY T terzmo top fuel
terzmo top fuel T Joined: Mar 2005 Posts: 2,060 Pendleton NY	440 stroked to 498..355 gears....950 pro form carb...12 around town if not into it...6 to 8 if I'm in a whoopin mood 6129618-IM000604.JPG (66 downloads)

Re: 440 Gas Mileage-Car? [Re: terzmo] #767934 08/08/10 06:04 PM 08/08/10 06:04 PM
Joined: Jul 2008 Posts: 30,632 Florida STAYcation IcorkSOAK Financed his waterbed
IcorkSOAK Financed his waterbed Joined: Jul 2008 Posts: 30,632 Florida STAYcation	12 ....and 6 mpg ? .. gotsta' beez BERRI equipped !! ... My 62 got 17 mpg with a 2.76 gear and ran mid-12's but at only 99 mph(because the motor was worn-out) ....but YET would get good-mpg driving to the 'Nats. OF COURSE ...it was not BERRI equipped CORRECTION ...it did have a BERRI intake.

Re: 440 Gas Mileage-Car? [Re: IcorkSOAK] #767935 08/09/10 11:49 AM 08/09/10 11:49 AM
Joined: Mar 2005 Posts: 2,060 Pendleton NY T terzmo top fuel
terzmo top fuel T Joined: Mar 2005 Posts: 2,060 Pendleton NY	pro form 950 as stated above...no nick name or whatever...just performance....not synomomous with the "E" carb

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