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Old 04-20-2018, 02:13 PM   #21
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I have the V6, but I know mine will go over 5500RPM. Back when the tach worked I got it up close to 6k a few times. The engine was really sad back then so I didn't beat on it as much as I do now. That being said though, if you can't rev to over 4500 at WOT there's definitely something wrong. Have you pulled the throttle body just to make sure there's nothing janky looking? Checked the injectors?

Honestly though these little guys aren't much for passing. When I pass people on the highway I usually have to throw it in 3rd, smash it to the floor, and hope for the best lol.
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Old 04-20-2018, 07:43 PM   #22
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i feel like that would blow something lol
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Old 04-20-2018, 10:36 PM   #23
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Yeah...when you own a D21, you learn to sort of 'plan' your attempts at passing other cars. Back in Da Day, I owned a 76 Dodge Polara that had belonged to a captain in the Washington State Patrol. 440 mag, cam, Carter thermoquad, etc. I could pass anybody I wanted and yawn at them going by. I even outran the cops in it at night a couple of times, but that's another story. (Helps when you turn the spotlight around and shine it right into their front windshield LOL) And this was back in the late 70's when it was easier to get away with that kind of thing. ('Nah...sorry officer...I don't WANT your ticket today...') I was downright nuts back then. I even rigged a switch on my dash that would kill the brake lights, rear taillights, and the license plate lights.)

But then a mile down the road, I would notice the gas gauge had dropped about an eighth of a tank LOL.

Can't have everything. Especially running a four banger. Generally, there are only four categories of power/gas usage. Off the line acceleration, (frying the tires all day and pulling off the line quick) high-end sustainable speed, ('I can stay at 120 all day') gas mileage, ('getting 40mpg in this one') and passing power ('You going 70? I can zip past you easy even if you floor it'.)

You can have SOME of those things, but usually not ALL of them. In a D21, if you get TWO of those items, you're doing good.
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Old 05-01-2018, 10:52 PM   #24
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I got the used engine in the truck would not fire, swaped out the distributor and it ran fine.

I lost all my dash instruments don't now it would do that. I saw some sparks.

Now this thing is billowing white smoke don't know why, could there be a problem with the PCV system?

The oil pan is leaking like crazy.

I feel the oil pump rod is off by a tooth.
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Old 05-02-2018, 12:50 AM   #25
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That sounds like a motor to rebuild to me.

Sifi, I got a couple of your things! I can roll my 31s off the line and for the next 2 shifts. It will hold 100+ on the flat without a care. And I can outrun most small trucks, especially a 4cyl yota, when passing. My problem now it my injectors cannot feed my motor at high RPM. Around 4500RPM on a high load like passing on a steep hill it falls flat. Still pretty happy. I'd like more MPGs though.
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Old 05-02-2018, 01:28 AM   #26
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White smoke is usually water burning. Did you look this new engine over before dropping it in there?
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Old 05-02-2018, 01:40 AM   #27
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Head gasket? Might as well do the timing chain while in there.
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Old 05-02-2018, 02:03 AM   #28
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Rev it up to 6500 RPM first. Make sure it will hold together before you start throwing money at it.
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Old 05-02-2018, 02:56 AM   #29
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LOL ya I worried about the white smoke, as long as the rings are good I can swap the cyl head from my old engine.

Im gonna fix the oil pan leak first and go from there. Maybe a cyl compression test, then cooling system pressure test as well.

Im going to baby this one
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Old 05-02-2018, 03:50 AM   #30
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Quote:
Originally Posted by Deerhurst View Post
That sounds like a motor to rebuild to me.

Sifi, I got a couple of your things! I can roll my 31s off the line and for the next 2 shifts. It will hold 100+ on the flat without a care. And I can outrun most small trucks, especially a 4cyl yota, when passing. My problem now it my injectors cannot feed my motor at high RPM. Around 4500RPM on a high load like passing on a steep hill it falls flat. Still pretty happy. I'd like more MPGs though.
Wow. Okay. That's pretty damn good. But you want more MPG. Hmm...I don't know about that. Big request, tall order, already having so much power under that hood. Takes fuel to do that.
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