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1980 Dodge w150 questions

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  #1  
Old 07-13-2013, 02:23 AM
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Default 1980 Dodge w150 questions

Just picked up a new to me 1980 dodge ram power wagon w150. Has a 318 and a 3sp with overdrive. Has about a 3" lift I think. Have several questions
The speedometer is very funky. It will get stuck in random places on the gauge. Will this require a new speedo or cable or both? Where is the cable attached to the trans?
It has an aftermarket radio shoved into the dash to the right of the steering wheel. It's not bolted done or anything. Is there a bracket that I can install to mount the radio?
What are some common upgrades to get more power?
Intake mani and 4bbl carb? How much power does an intake and carb swap make? Anything else?

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Old 07-14-2013, 06:45 PM
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Just picked up an Edelbrock Performer 4bbl intake manifold. Part # 3776. What would be a good carb that won't brake the bank? The current set up has a manual choke. Looking for a simple swap. And would a 1" carb spacer be worth it?
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Old 07-14-2013, 09:20 PM
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personally i would go for a 390cfm holley carb but they go for about $360 new. if you like edelbrock carbs you could try searching for a 500cfm carb since that is the smallest they make.
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Old 07-15-2013, 12:20 AM
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From what I've read about the 318 is a 550-600cfm carb would be good for street and 700+ for racing. This is mainly a back and forth to work truck. And some mild off roading and playing in some mud. Would like to get it into the 300hp mark. Thinking some cleaned up heads, mild cam and exhaust. Longtubes and duals. Undecided on mufflers
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Old 07-15-2013, 12:43 AM
dodge dude94 dodge dude94 is offline
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300hp would be quite a bit of work as the stock LA 318 only makes around 180hp stock. I would be going for torque, personally. If you're going to pull the engine, freshen it up and perform the work you speak of.

Hell, if you're looking to spend that much money you might look at swapping in a Magnum 318 and carb it instead. At the very minimum I'd be looking at aftermarket heads to replace the factory SMOG heads on the current 318.
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Old 07-15-2013, 01:34 AM
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you may want to do your own research on the subject since some other disagree with me on it but anything over 500cfm on a small little 318 is too much. the cfm calculator on summits website says a 318 with a max engine rpm of 5000 would need a 391.06cfm for street use or 506.08 for racing
this kind of explain the difference between street engine and race engine
http://www.summitracing.com/popup/ca...cfm-calculator
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The ratings are different because street engines have a volumetric efficiency around 85% while racing engines are closer to 110%.
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Old 07-15-2013, 10:21 AM
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If I pull the engine I'm going to put something else in. The moror/trans were installed 2 years ago. It had an auto stock. So what would some realistic numbers be with a 500cfm 4bbl carb, headers and exhaust and a mild cam be? And where can I find out what trans I have? All I know is its a 4sp manual. 1st is a granny gear and 4th is overdrive. Also have no idea what gears are installed. And the tcase is an np208. Thanks for the replies
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Old 07-15-2013, 11:09 AM
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From what I've read this woud be a fun street able cam and can still use the 4x4 when I want to. http://m.summitracing.com/parts/cca-k20-222-3. And it's a compleat kit.
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Old 07-15-2013, 11:29 AM
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since it sounds like you are going to be using it as a daily driver you may almost want to get something like a RV/towing cam. there are kits on ebay for about $300
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Old 07-15-2013, 01:14 PM
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So something like this?
http://m.summitracing.com/parts/cca-sk20-416-3
What are the stock cams? And would I be better trying to find a TQ 4bbl carb instead of getting one of the higher cfm ones?
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Old 07-15-2013, 01:31 PM
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Looks like the only stock 4 bbl carbs are TQs and QuadraJets.
Dunno what CFM Dodge used for the 318 on the TQ.
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Old 07-15-2013, 02:19 PM
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The thermoquads and quadrajets were capable of more flow than the 318 or 360 needed but with the vacuum controlled secondaries adjusted properly were very good carbs.
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Old 07-15-2013, 02:21 PM
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I'm thinking the truck TQs were like 800 cfm units.

Got one on the 76. If I could get rid of the off idle bog it has it would be running great. threadjack aside....
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Old 07-15-2013, 02:26 PM
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How hard would it be to wire up the eletric choke on the qt? Mines currently a manual choke. I'm decent at wiring. But this trucks wiring is already a mess from the previous owner. Half the gauges are not working. All I have is the speedometer and an aftermarket oil pressure gauge
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Old 07-15-2013, 06:52 PM
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Originally Posted by dodge dude94 View Post
I'm thinking the truck TQs were like 800 cfm units.

Got one on the 76. If I could get rid of the off idle bog it has it would be running great. threadjack aside....
If I'm not mistaken there was three sizes of Thermoquads. 750, 850 and one for competition rated at either 900 or 1000 CFM.
The 750 had smaller primarys than the 850.
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Old 07-15-2013, 07:10 PM
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Quote:
Originally Posted by charlie1935 View Post
If I'm not mistaken there was three sizes of Thermoquads. 750, 850 and one for competition rated at either 900 or 1000 CFM.
The 750 had smaller primarys than the 850.
Yep, that's right. The competition one was 1000cfm from what I've read.

Would you happen to know where the part numbers are located and how to decipher them?
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Old 07-18-2013, 07:20 PM
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For efans, could I do a single 16" 3000cfm fan with a thermostat activation to turn on at 180*F, or dual 12" 1200 cfm each. one constant on and the other with a thermostat. Longest trips are when I go to town which is 12 miles away. Work is only 3 miles away
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Old 07-18-2013, 07:47 PM
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you may want to call up your local junk yard and price out the rad fan assembly out of a 96-00 Dodge caravan, Plymouth voyager or Chrysler town and country. they have a dual electric rad fan assemble which take pretty much nothing to bolt to a dodge rad in place of a stock fan shroud. they also pull a lot of air while not drawing too many amp and can be had fairly cheap. i think most junkyards usually ask about $40 or less.
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Old 07-21-2013, 12:25 AM
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Junk yards are rather scarce around me. Pretty much have to search online for what I need. The Plymouth Efans are about 75. Can get the dual 12" fans for 60 and they come with the theromstat relay
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Old 07-22-2013, 08:37 PM
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Quote:
Originally Posted by dodge dude94 View Post
Yep, that's right. The competition one was 1000cfm from what I've read.

Would you happen to know where the part numbers are located and how to decipher them?
Try this.
https://www.google.com/url?sa=t&rct=...SjhaXPTmXZ_Ijw
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Old 07-22-2013, 08:37 PM
 
 
 
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