['ol coot]

We've had this car for a very long time. I think my wife bought it from a co-worker about 2006 or near that. I was under orders not to touch it and because of that she never checked the oil in it and the engine seized up. Number one and two rod bearings were dry. I told them to just drop the crank, get it repolished and replace the rod bearings and it would be okay, but nooooo! She wanted a whole 'nother engine. So they put another motor in it that had about the exact same miles on it so that turned out good. I can't give you the exact number but it's got to be over 275K by now. I figure you're thinking what I needed to have done was take that new valve cover and put it on a new engine then I wouldn't be having any idle problems with it.
So let me ask you guys, anyone ever hop these engines up like with a custom rebuild? I'm an 'ol hot rodder and would love to tear into a motor like this and see what you could get out of it. I already called Energy Suspension and MSD ignitions which I have a lot of experience with and asked them if they had anything for that car and they said no, but I know there would have to be parts that could be mixed and matched for some other car that would fit the Altima. Any of you guys got one that puts out about four or five hundred horse power? It probaly wouldn't take much. I read it already has 188 hp stock. It wouldn't take much to get 200 or 250 maybe 300 hp? What's the bottom end like in these motors? I suppose everyone gore turbo with them don't they?

 

[Throckmorton]

Any of you guys got one that puts out about four or five hundred horse power? It probaly wouldn't take much.

In the words of Steven Tyler..."Dream on."

 

[Minstill]

I really need you guys help , I have a 2015 altima 3.5SL with a camshaft exhaust B2 code and I bought 2 from Amazon , and the car to long to start , so put back in the top sensor , and it started properly. But still same stalling , rough ride. Please help

 

[amc49]

Both posters here are completely LOST.

OP, you can't mod engines like in the days of old, the computer completely stops it. The engines will run lean and burn up in minutes if you insist on doing it. The only way to get around it is to go to a 'tune' an electronic software rewrite that takes into account every change you make, meaning if you change it again you again have to rewrite the software. BIG business in it.

And to think you simply 'repolish' a crank to then be as good as new, I'm sure you didn't build very many motors at all. I've done the like and gotten away with it but the circumstances involved were extremely limited in scope and by no means happen in most of the cases, that repolish would most likely blow it up in minutes.

 

['ol coot]

Both posters here are completely LOST.

OP, you can't mod engines like in the days of old, the computer completely stops it. The engines will run lean and burn up in minutes if you insist on doing it. The only way to get around it is to go to a 'tune' an electronic software rewrite that takes into account every change you make, meaning if you change it again you again have to rewrite the software. BIG business in it.

And to think you simply 'repolish' a crank to then be as good as new, I'm sure you didn't build very many motors at all. I've done the like and gotten away with it but the circumstances involved were extremely limited in scope and by no means happen in most of the cases, that repolish would most likely blow it up in minutes.

Of course I meant it depended on what the crank looked like when you took the rod cap off. My statement was with all the considered criteria ahead of just polishing the crank. I purposely left all that out and jumped ahead thinking that whomever would know all that would have needed to have been done to refurbish the crank, but without saying all that would need to have been done, you know? The crank could have been trash and you might as well chunk it but that is hoping the babbitt kept the crank from roasting or whatever. But no one even bothered to even look at the crank, like the rod bearing could have melted itself to the journal, I've seen that where it took a big hammer to knock the rod bearing cap off.
See, so without all the minor and major details involved with the tear down, assessing the damage, remachining, ordering the new parts, and the rebuild I just said, "...just polish the crank..." Did I need to have included all that other info rather than just say polish the crank? Up to 2002 I didn't even own a single metric tool and refuse to buy one, until we got the Honda for my daughter starting her senior year in high school I never laid hands on a "foreign" car and had been working on cars since the '60's. Every make.
Fortunately I got the factory maintenance book on the Honda and that was my introduction to foreign machines. I still have a hard time figuring out all the dang acronyms, which I can't stand for people to use, like I'm supposed to know what they mean. I like things spelled out. If you are talking about the engine coolant temperature sensor don't tell me the ecm sensor or whatever the heck it's called. That's just people acting like they are a computer, or they don't really know what it's called but they know it by the acronym. You see that crap on a box of medicine like you're supposed to know some medical term but instead they tell you the acronym.
And yes I've built a few engines. Fortunately I had a couple of cranks that weren't worn but a couple of thousands and only needed polishing. Of course those engines weren't being rebuilt because the engine was oil starved either. Some were just worn out and needed rebuilding.
I've never done anything to any kind of a Nissan or any other foreign car except for the Honda, but that's not a Nissan either. It was fun hopping the Honda up and I just thought you could do the same to the Nissan to. I read on here somebody was putting in cams and turbos and all the other. I'm just guessing but like some old school engines, there are some you just can't do much machining to or hopping up at all. They aren't so much made that way, but they're made that way, you know, you're just wasting you money and time. Like the Honda D16Z6 engines they were more or less made to hop up. And there was a ton of high performance parts for them to. I did mange to find a set of MSD coil packs for the QR25 engine but that was about it for now. I need to look some more. This past week was enough for me to deal with. I broke #3 plug off half way out of the hole when I was pulling plugs. I got what was left in the hole out but I wouldn't want to cause you to have nightmares telling how I got the rest of the plug out, and it wasn't with an ez-out either. I tried that, it was hopeless. And yeah, yeah I know about aluminum heads. I got the plug out without doing any perceivable damage to the threads in the head to. Then I had to use a magnet to fish the shavings and big metal pieces out of the cylinder. That's all I'm going to say about that. I'll leave the rest up to your imagination how all that got in the cylinder, ha, ha.

 

[BiggerBrat]

We've had this car for a very long time. I think my wife bought it from a co-worker about 2006 or near that. I was under orders not to touch it and because of that she never checked the oil in it and the engine seized up. Number one and two rod bearings were dry. I told them to just drop the crank, get it repolished and replace the rod bearings and it would be okay, but nooooo! She wanted a whole 'nother engine. So they put another motor in it that had about the exact same miles on it so that turned out good. I can't give you the exact number but it's got to be over 275K by now. I figure you're thinking what I needed to have done was take that new valve cover and put it on a new engine then I wouldn't be having any idle problems with it.
So let me ask you guys, anyone ever hop these engines up like with a custom rebuild? I'm an 'ol hot rodder and would love to tear into a motor like this and see what you could get out of it. I already called Energy Suspension and MSD ignitions which I have a lot of experience with and asked them if they had anything for that car and they said no, but I know there would have to be parts that could be mixed and matched for some other car that would fit the Altima. Any of you guys got one that puts out about four or five hundred horse power? It probaly wouldn't take much. I read it already has 188 hp stock. It wouldn't take much to get 200 or 250 maybe 300 hp? What's the bottom end like in these motors? I suppose everyone gore turbo with them don't they?

Have you looked to see if you might squeeze a used Frontier V6 cylinder in there? If I remember correctly, my old Frontier was 292 HP. The newer 6 cylinder Frontiers are 310 horse power. Nissan made V6 cylinder Frontiers to compete with small V8s of other car companies. And I gotta tell ya my old 2009 Frontier was a hot rod. I used to tell people the best truck I ever owned. Time after time it out performed other brand BIG V8s. A friend of mine with a huge hemi-V8 dually was trying to pull his 30 foot Regal boat out of the water on a trailer. Wouldn't do it. Blocked the trailer tires, hooked up the Frontier, put it in "locked" 4WD and pulled the boat up the ramp and on the road. Then I followed him to where he was storing the boat for the winter. He got there, tried to back the boat/trailer into a barn. You guessed it. Put the Frontier on the trailer and backed right in. I told him to get rid of the Dodge, get a Nissan.