motor compatibility

2fst4u · 04-26-2011, 11:59 AM

so, motor number two has ridiculous rod knock now, and i'm looking to drop in a new short block with my modified top end.
There's a guy on jbo selling a 99 short block out of a cavalier. i know that some years had balance shafts, but i'm not sure what that means as far as compatibility. if i buy this short block, will i be able to transplant it into my 2000? a garage would be doing the work, but i need to pull together the parts, and this was the most cost effective. Please let me know.

sleepyalero · 04-26-2011, 12:26 PM

Im thinking that it will work but someone should key in to see if im correct.

03Sleepr · 04-26-2011, 12:42 PM

its an ENGINE not a motor...two completely different things..

sorry but thats one of the many things that drives me insane.

Cliff8928 · 04-26-2011, 01:31 PM

Quote:

Originally Posted by 2fst4u

i know that some years had balance shafts, but i'm not sure what that means as far as compatibility. if i buy this short block, will i be able to transplant it into my 2000?

For the best compatibility, just make sure it was not a EGR equipped 2.4. The 2.4 w/EGR uses a different knock sensor (1 wire) compared to your non-EGR 2.4 (2-wire)

You could probably use a thread insert to adapt it to your smaller threads if you wanted. As far as I know, that's the only difference compatibility wise over the years.

All the 2.4s have balance shafts.

Quote:

Originally Posted by 03Sleepr

its an ENGINE not a motor...two completely different things..

Ugh...

Quote:

Originally Posted by dictionary

motor |ˈmōtər|
noun
a machine, esp. one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts.

2fst4u · 04-26-2011, 02:03 PM

thanks for the info cliff. pay no attention to the ignorant kansan
has anyone tried this knock sensor conversion? cani just trick the computer with a closed circuit or resistor?

heineck · 04-26-2011, 02:17 PM

i did the knock sensor conversion when i droped a 98 GA engine into my 99 alero. the knock sensors easy just buy this adapter there where a few other things i had to do but that was from a 98

03Sleepr · 04-26-2011, 02:33 PM

ignorant kansan? you don't call your stater motor a starter engine do you? an engine is a collection of components that work together to make mechanical energy

a motor converts electrical energy to mechanical energy with one simple movement.

an engine converts chemical to mechanical with a series of movements.

I'm sorry if thats to much for you to grasp and I offended you. no need to call names here

Ttop191 · 04-26-2011, 02:42 PM

actually you are partially correct...an engine is solely powered by combustion, a motor is anything that produces a rotating mass to power something, it doesn't matter what it uses to rotate that mass

2fst4u · 04-26-2011, 03:47 PM

so, what type of engine oil do you use? oh wait, they refer to that as motor oil. lol.
quit shitting up my thread

heineck · 04-26-2011, 05:39 PM

Cliff8928 · 04-27-2011, 01:26 AM

Quote:

Originally Posted by Ttop191

an engine is solely powered by combustion

No, not necessarily. Look it up.

2fst4u · 04-27-2011, 07:59 AM

back to the original issue.... can i use hptuners to disable the knock sensor to alleviate an issues and just leave the 99 one in place? i've heard of camaro guys doing this

widbyj · 04-27-2011, 01:11 PM

It would not be a good thing to disable the knock sensor. Without that IMPORTANT feedback the ECM may decide to advance spark way beyond what it should be, leading to serious pre-ignition and engine damage.

Simple work around - use one of the intake manifold bolts to secure the knock sensor to the engine. The wiring reaches that far easily and the vibration gets registered just fine.

As for the EGR issue - Most newer exhaust gaskets block the port off anyhow. If not just get a small freeze plug and tap it into the open port on the front of the head.

Cliff8928 · 04-27-2011, 01:23 PM

EGR is totally a non-issue. That's just the easiest way to identify the engines with the different knock sensor.

As said, disabling it is a bad thing... x100 with the supercharger.... unless you can have a perfect tune and consistent fuel. So basically for racecars.

spyhunter · 04-27-2011, 05:07 PM

Quote:

Originally Posted by heineck

i did the knock sensor conversion when i droped a 98 GA engine into my 99 alero. the knock sensors easy just buy this adapter there where a few other things i had to do but that was from a 98

in my 2001 car I was using a 98 motorset & modified the knock sensor mount by welding a nut to the back of the block in the original location. Worked like a charm.

spyhunter · 04-27-2011, 05:07 PM

Quote:

Originally Posted by 2fst4u

back to the original issue.... can i use hptuners to disable the knock sensor to alleviate an issues and just leave the 99 one in place? i've heard of camaro guys doing this

Disabling the knock sensor = stupidest idea evar.

2fst4u · 04-28-2011, 04:19 PM

the only reason i say that, is because on my old xterra, they had overreactive knock sensors, and everyone just puts a resistor in line. didn't know if it would be the same

i'll probably end up doing the nut welding thing. sounds like the easiest route.

i'm also possibly purchasing some other engine parts from this guy. He's got a Dart racing head that he wants to sell. Has anyone heard of these? are they any good?

Cliff8928 · 04-29-2011, 01:10 AM

Quite honestly, the thread insert that Heineck posted would probably be the easiest...

2fst4u · 05-19-2011, 01:55 PM

the guy that i'm buying the engine from has a set of 14:1 pistons. should i purchase these? is there any resale value to them? from my research i couldn't even think about running these on pump gasoline

spyhunter · 05-22-2011, 06:26 PM

Quote:

Originally Posted by 2fst4u

the guy that i'm buying the engine from has a set of 14:1 pistons. should i purchase these? is there any resale value to them? from my research i couldn't even think about running these on pump gasoline

You won't be able to use them without some hellish time retuning your shit.