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10:23:01 - 04/23/2024
V8 Dakotas
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Chris G.
Dodge Dakota
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3/27/2006
22:00:52
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 Subject: RE: RPM's in a 318 Magnum
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Ummm.... I said I was talking a totally stock configuration here. No beefy buildups or anything. I just said that I don't think the STOCK 318 Mopar/Chrysler rods would take the abuse of anywhere above 5,500. What's the highest you can rev a 318 in park? J/W.
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ewraven
Dodge Dakota
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3/27/2006
22:03:41
| RE: RPM's in a 318 Magnum
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I honestly don't know what happened to that truck that day. I was just driving along at 20 to 25 mph, I floored it to get on an on ramp and when I did that, the thing got super loud and sounded just like a Nascar V8, the tachometer needle swung all the way to around to roughly the six o'clock position which was way way past any of the markings on the tach. I let off the gas and slowed it down and I was in control again. I took it easy the rest of the day and headed back to the Base and parked it. It did that once more when I owned it but that one is a little foggy in my memory, it didn't rev as high as the first time it happened.
Automatic transmissions and I don't mix very well. I am on my sixth vehicle in the fifteen years I've been driving and that 1993 Dakota was the only one to have had an automatic transmission and I got rid of it after only putting ten thousand miles on it.
The truck was also on it's third transmission in 26k miles as evidenced by the stack of dealer repair receipts I found in the glovebox. It probably had another engine related problem that was making the transmission do that. I'm guessing, because I've never read about those particular model year trucks having any recurring automatic transmission problems and that one was on it's third one.
I believe the truck had some vaccum problems though. The cruise control wouldn't work sometimes and the damn thing would vapor lock. Or at least I think that is what it was doing. When it was real hot out and I would park it for short time, when I'd come back out to start it, it would turn over but not start. Just like as if it wasn't getting any fuel. That was pretty much the nail in the coffin for that truck when it did that along I-10 in southern Louisiana at a desolate rest stop. I had graduated Air Force tech school that day and was driving home; I had another ten hours to go and that thing was giving me problems. I just instinctively took the gas cap off and vented the gas tank, it started right up after I did that. I put the gas cap back on and even though it still had 3/4's a tank of gas in it; it barely and I mean barely made it to a gas station. I had to sit at a light on the access road before turning into the gas station, I had to sit there in neutral revving it to keep it started so that I could limp it into the gas station. The damn thing only had 26k miles on it but it was already out of warranty due to the age.
I did take it to a Dodge dealer for a diagnosis at one point. The mechanic drove it around and of course could not reproduce the problem, he told me, "Dodge trucks don't vaporlock" and I had to pay the fee and was no better than I had started. lol
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toolfan
GenIII
3/27/2006
23:25:56
| RE: RPM's in a 318 Magnum
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Chris G. the valve train on a stock 318 isn't recommend to be revved over 5,500rpm but the bottom end is extremely strong. i have no idea on how high you can rev it but i know that you can rev it to 6,000rpm safely in stock form. and that 318s bottom end in the junkyard jewel is bone stock and had 270,000miles on it all they did was replace the piston rings. read it if you haven't its a good read.
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