4g63 turbo and N/T differences?

[talon2gbuyer]

Hey all, so ive been scouring the site trying to find if there are major differences between the turbo and non-turbo versions of the 4g63. The reason I'm looking is that from what i'm seeing I believe i spun a rod bearing, and will be looking for a rebuild solution in the near future (September-ish). Not sure if i'm searching for the wrong thing, or just using the wrong keywords :/

I've heard that some people have picked up a 6 bolt non-turbo motor, and simply attach the turbo set up they have, and keep the ECU from their turbo, and use a different harness? Is there any weight to this? I only ask because for a 6 bolt long block NT is like 4-500$, and a turbo 6 bolt long block is like $1200-1500. So that's a major price difference.

I am also trying to piece together some better internals, and ive read the threads that include the Eagle rods and APR studs, and others have said there is a package deal for pistons and rods, I know that i'm going to be doing the Cosmetic HG, and probably Gates timing belt and new water pump while i have it all torn apart (although with a longblock being delivered, kinda seems dumb to tear it all apart again to change things). I guess my concern is, how difficult is it to rebuild the motor? I have confidence in my skills mechanically, but i've never delved into doing a full motor tear-down before, and just trying to get a feel for what I may be in store for.

And lastly, does anyone know of a good source to find a 6 bolt long block? the junkyards in my area (which are an hour away at best) only have the N/T motors, and they aren't in the best shape, anyone know of anywhere I can get one used, but within a decent price range that they have used before?

Thanks!

 

[bryanwheat]

I would like to spoon feed you the information, but this has been covered so many times. The search button at the top of the page will help you greatly.

 

[talon2gbuyer]

Ok mr. know-it-all, what are you searching for EXACTLY that your coming up with results that have this particular thread in it? Because Ive tried "Turbo vs N/t" , "4g63 differences", "4g63 Turbo vs N/T motors" and have come up with nothing in line with that topic.

 

[thomcasey]

N/T has higher compression, smaller gap between Piston top and ring lands (make the pistons weaker), no oil squirters or knock sensor. Everything else is basically the same. Someone on here ran over 25lbs to a N/T motor for a year or so before it died. I ran a N/T motor on stock boost for almost 2 years, no damage to the pistons at all, no problems (until the tensioner went)

 

[talon2gbuyer]

Thats what I figured, i knew it couldnt be as easy as that person said it was, . I figured the injectors, pistons, and rings would at least be different due the compression the engine has to make and hold. Thanks for the heads up

 

[007jimmy]

The n/t blocks have no oil squirters and weak pistons. The head has different cams. Thats about it.

 

[bryanwheat]

Ok mr. know-it-all, what are you searching for EXACTLY that your coming up with results that have this particular thread in it? Because Ive tried "Turbo vs N/t" , "4g63 differences", "4g63 Turbo vs N/T motors" and have come up with nothing in line with that topic.

http://www.dsmtuners.com/forums/new...between-turbo-4g63-non-turbo-4g63-blocks.html

http://www.dsmtuners.com/forums/newbie-forum/246636-difference-between-4g63t-non-turbo-block.html

http://www.dsmtuners.com/forums/cyl...k/398326-what-all-differences-4g63-4g63t.html

http://www.dsmtuners.com/forums/bolt-tech/57357-rebuilding-4g63-turbo-4g63-na.html

http://www.dsmtuners.com/forums/newbie-forum/393880-differences-between-7-bolt-na-7-bolt-turbo.html

http://www.dsmtuners.com/forums/new...-difference-between-1g-na-1g-turbo-6bolt.html

http://www.dsmtuners.com/forums/420a-turbo-conversion/151153-gs-non-turbo-gs-turbo.html

http://www.dsmtuners.com/forums/new...n-turbo-block-vs-1st-gen-non-turbo-block.html

http://www.dsmtuners.com/forums/newbie-forum/273382-6bolt-7bolt-non-turbo.html

http://www.dsmtuners.com/forums/newbie-forum/260190-swapping-non-turbo-parts-turbo-parts.html

http://www.dsmtuners.com/forums/newbie-forum/301045-turbo-charging-non-turbo-4g63.html

http://www.dsmtuners.com/forums/newbie-forum/18184-4g63-vs-4g63t-engine-specification-question.html

http://www.dsmtuners.com/forums/new...e-swapping-91-non-turbo-fwd-90-turbo-awd.html

 

[talon2gbuyer]

Thank you for posting the links for that since i couldn't find them. Although i'm sure one or two would have been sufficient.

 

[ed1380]

Thank you for posting the links for that since i couldn't find them. Although i'm sure one or two would have been sufficient.

I will admit the search function sucks. That's why I've used google. Just type "DSM and your question" If you get bad results. On the left sidebar, have google narrow down the search to discussion only.

 

[black_gst]

Thank you for posting the links for that since i couldn't find them. Although i'm sure one or two would have been sufficient.

He posted all those to exaggerate how much info there is. The trick is using different terms, notice "non turbo 4g63" is on a lot of those threads

 

[black_gst]

And i ran a non turbo block at 35 psi for awhile.

another issue you have with running them is high oil pressure to your turbo, even more so with a BSE.

 

[talon2gbuyer]

ed, good point. I will most likely start using google for these questions, as half the time I try to use the search option, it comes up with 100 threads full of bullshit that doesn't pertain to my question, but this is most likely my fault.

Black_gst, from the sound of it its almost worth spending the extra $$ just to get a 6 bolt longblock with a turbo.. almost seems like more work than its worth to get an N/T motor up to spec.

 

[talon2gbuyer]

He posted all those to exaggerate how much info there is. The trick is using different terms, notice "non turbo 4g63" is on a lot of those threads

Also, kinda stupid that "N/T" and "non-turbo" dont show the same results. Kinda retarded.. seems like the search feature is too specific, and even being that sensitive it still doesn't show you what your looking for, .

 

[ed1380]

ed, good point. I will most likely start using google for these questions, as half the time I try to use the search option, it comes up with 100 threads full of bullshit that doesn't pertain to my question, but this is most likely my fault.

Black_gst, from the sound of it its almost worth spending the extra $$ just to get a 6 bolt longblock with a turbo.. almost seems like more work than its worth to get an N/T motor up to spec.

If you're going to build it, then I wouldn't sweat it. Forged pistons can run without oil squirters, unless you autoX in the desert or road race.

 

[DSM1G90]

Basically: NT blocks ran 9.0:1, early 6bolts ran 7.8:1, and later ones used 8.5:1. 420A also used the 9.0:1 compression.

You can turbo any stock NT motor with the proper engine management and compatible components.