I guess my advice was not good enough for you
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| 1985 d150 need some power/ better intown mpg https://slantsix.org/forum/viewtopic.php?t=47260 |
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| Author: | 85Dodgeguy [ Sun Dec 11, 2011 9:11 am ] |
| Post subject: | 1985 d150 need some power/ better intown mpg |
Hey, there iv been looking through the forum here for a couple of days, and havnt found any thing helpfull, I did find one thread but wasnt any help, anyways I wanting to get some better gas milege for in town and out of town driving, I get pretty good out of town mpg, but my intoen just sucks, also my truck is 2wd and its a stick shift. The other thing I was needing se help on, is gettinh more power out of my OD gear when im freeway or highwsy driving. Also I dont have to worry about emission tests here, also I have already disvonnevted my smog pump is that ok? Anyhelp would be appricited, keep in mind I dont know to much about cars or engines but I have been teaching my self over the past couple years, thanks for any and all help. Ben. |
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| Author: | raPoM [ Sun Dec 11, 2011 9:14 am ] |
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I guess my advice was not good enough for you
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| Author: | 85Dodgeguy [ Sun Dec 11, 2011 9:32 am ] |
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It was just need some more options sorry didnt mean any disrespect. |
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| Author: | raPoM [ Sun Dec 11, 2011 9:34 am ] |
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Did you do a tune up? How are all of your fluids? What kind of mpg are you getting in town? 12-16 is about tops. |
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| Author: | Aggressive Ted [ Sun Dec 11, 2011 9:34 am ] |
| Post subject: | Better mileage |
This site is full of excellent info found in the the Engine FAQ section. The best thing that will help you is re-reading the distributor recurve thread.... and do it! Plot what you have now with the supplied graphs to make a reference baseline. Then plot your changes. You will see a big difference in low end torque when you apply more advance at lower rpm. THe results are much better mileage. |
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| Author: | raPoM [ Sun Dec 11, 2011 9:35 am ] |
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Also if you disconnected to smog pump but still have both cats on the truck you are doing more harm than good. |
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| Author: | 85Dodgeguy [ Sun Dec 11, 2011 9:44 am ] |
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The smog pump stoped working, two cats? I know theres one under the passenger side wheres the other? And i will go and re read that thread again. |
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| Author: | raPoM [ Sun Dec 11, 2011 10:17 am ] |
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It would be right under the manifold if you had it. But if the pump was not working,then it wont make a difference. It might be the cause of your poor mpg though. |
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| Author: | 85Dodgeguy [ Sun Dec 11, 2011 10:26 am ] |
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Ok |
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| Author: | hantayo13 [ Sun Dec 11, 2011 1:47 pm ] |
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take off cats...pound out innerards...save and take to scrape...worth a few bucks...replace empty cats or use straight pipe |
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| Author: | supton [ Mon Dec 12, 2011 4:49 am ] |
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Careful on removing cats. Their presence is required in many states for inspection (their operation may or may not be). I know I'm having my reservations about buying a truck that had them cut out (as I'd have to reinstall!). I'd read more threads; standard tuneup, perhaps removal of leanburn, distributor recurve and the like is on order. However, two things: first, I'd actually measure the mpg, over like 3 tanks. Second, I'd read up on changing the rear gearing. It seems many (?) were not happy with a stock slant, A883OD and 3.23 gears. 3.55 is more liked, and 3.91 may not cost that much highway mpg. You might want to double check what rear gears you currently have. |
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| Author: | Brussell [ Mon Dec 12, 2011 5:24 am ] |
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I didn't read any other replies, but I suggest opening up the exhaust. If it hasn't been done in a while check the operation of the carb and the ignition, check plugs and all fluids. I always thought it was a good idea to have the car working at factory specs before making changes to improve the car. |
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| Author: | DadTruck [ Mon Dec 12, 2011 8:49 am ] |
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on my 83 d-150,,got a real improvement by taking out the lean burn,, replaced that with an old points distributor. The difference in the smoothness of the idle and the willingness of the motor to rev above 3K was noticeable. as part of the prep install to get the motor ready for the overhaul,, put in a HEI and a new distributor to get those issues worked out,, that ran good too. personally I would make sure the carb is tuned up then do ignition work. |
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| Author: | 85Dodgeguy [ Mon Dec 12, 2011 9:11 am ] |
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Ok well thanks for the replies guys, i know currrntly i have a lifter going out, so iv been trying to get someoney saved up for that, where or how would i find out what my gears are in the back? Im almost pretty sure for the most part the engine is, or should have alot of stock parts, last year we replaced the valve cover gasket, and we did a tune up on it tjis last summer im still readying through the threads here, lot of good info. |
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| Author: | Aggressive Ted [ Mon Dec 12, 2011 10:17 am ] |
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Quote: where or how would i find out what my gears are in the back?
On one of the rear end bolts there is a tag with your differential ratio stamped on it. It is usually on the filler side. |
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