ZZP's Neutral Balance Shafts..
#4
Senior Member
Don't do balance shafts unless you are going to be upgrading your valvetrain. The biggest benefit of those is so that you can spin the motor higher (which requires valvesprings at the least). There are a lot of compromises with those when it comes to OEM drive-ability. I'm not necessarily saying you shouldn't get them, just that you more than likely are not at the point to need them if you have to ask...
#5
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#6
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Don't do balance shafts unless you are going to be upgrading your valvetrain. The biggest benefit of those is so that you can spin the motor higher (which requires valvesprings at the least). There are a lot of compromises with those when it comes to OEM drive-ability. I'm not necessarily saying you shouldn't get them, just that you more than likely are not at the point to need them if you have to ask...
#10
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i believe it can be done with the motor in the car, albeit with some finagling
#11
Senior Member
The NBS will cause vibrations that the weighted stock shafts cancel out. It's just like vibrations caused by solid or poly mounts. Some don't care, some do. I'm simply stating that the car will certainly not fall within OEM specs w/ those shafts installed. The NBS are definitely a better option than the delete kit, and I plan to install them myself, but there are compromises...
#12
The first 500 miles or so I saw a vibration at 3200 rpm that would make the mirrors vibrate enough to make it hard to see (like a deep bass from a stereo). Now for some reason, it seems less
plus my girlfriend really likes to ride along now.
#16
Senior Member
I removed the balance shafts and the vibration isn't that bad. And I have an Atom where the engine is bolted to the frame and the frame is bolted to a racing seat.
The first 500 miles or so I saw a vibration at 3200 rpm that would make the mirrors vibrate enough to make it hard to see (like a deep bass from a stereo). Now for some reason, it seems less
plus my girlfriend really likes to ride along now.
The first 500 miles or so I saw a vibration at 3200 rpm that would make the mirrors vibrate enough to make it hard to see (like a deep bass from a stereo). Now for some reason, it seems less
plus my girlfriend really likes to ride along now.
Everyone has different tolerance levels. The more you modify an engine, the more OEM drive-ability and street manners you are likely to compromise. I had a straight through 3" exhaust (no muff, lol), poly trans bushings and TTR upper mount for quite some time. Really wasn't THAT bad to me. It was usually the typical "A/C and idle is where it's noticeable" kinda thing.
Then I switched to the Powell rotated mounts/stock upper and threw a muffler out back and mother of god did it get much, much more comfortable. Threw a turbo on there and it got even a little more tolerable. I noticed and heard things that I completely forgot about, lol.
I guess my point here is that as car fanatics, we tend to adapt quite well. After your build, you probably won't think it's THAT bad. Do me a favor after a few months; though, and go ride in a bone stock 06 LSJ. I'm sure you get my point...
#17
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I respect you, so don't take this the wrong way, but there's no real way to compare an Atom to a Cobalt in any category. LoL
I know your comment isn't necessarily directed towards me, but I do want to throw my 2 cents in here.
Everyone has different tolerance levels. The more you modify an engine, the more OEM drive-ability and street manners you are likely to compromise. I had a straight through 3" exhaust (no muff, lol), poly trans bushings and TTR upper mount for quite some time. Really wasn't THAT bad to me. It was usually the typical "A/C and idle is where it's noticeable" kinda thing.
Then I switched to the Powell rotated mounts/stock upper and threw a muffler out back and mother of god did it get much, much more comfortable. Threw a turbo on there and it got even a little more tolerable. I noticed and heard things that I completely forgot about, lol.
I guess my point here is that as car fanatics, we tend to adapt quite well. After your build, you probably won't think it's THAT bad. Do me a favor after a few months; though, and go ride in a bone stock 06 LSJ. I'm sure you get my point...
I know your comment isn't necessarily directed towards me, but I do want to throw my 2 cents in here.
Everyone has different tolerance levels. The more you modify an engine, the more OEM drive-ability and street manners you are likely to compromise. I had a straight through 3" exhaust (no muff, lol), poly trans bushings and TTR upper mount for quite some time. Really wasn't THAT bad to me. It was usually the typical "A/C and idle is where it's noticeable" kinda thing.
Then I switched to the Powell rotated mounts/stock upper and threw a muffler out back and mother of god did it get much, much more comfortable. Threw a turbo on there and it got even a little more tolerable. I noticed and heard things that I completely forgot about, lol.
I guess my point here is that as car fanatics, we tend to adapt quite well. After your build, you probably won't think it's THAT bad. Do me a favor after a few months; though, and go ride in a bone stock 06 LSJ. I'm sure you get my point...
#18
Senior Member
my own personal experience is october of 08 i got laid off. to help with some bills i stripped the car back to stock and sold everything i had ( car is now back to what it was plus more ) and i went from solid mounts, catless 3" etc to full stock and it was kinda nice for a bit. you could talk to the person next to you you didnt have to yell. nothing vibed. i could hear the blower again. now im built again and im happy with where it is. your correct tho as modders we do get comfortable with our builds and forget what it was
#19
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im trying to tell a kid at work he needs to sell me his 02 cavalier 2.4 so i can have it for a daily. with of course a full suspension and maybe a couple other things of course..... ah who the hell am i kidding ill mod that too
#20
South Central *********
iTrader: (9)
I respect you, so don't take this the wrong way, but there's no real way to compare an Atom to a Cobalt in any category. LoL
I know your comment isn't necessarily directed towards me, but I do want to throw my 2 cents in here.
Everyone has different tolerance levels. The more you modify an engine, the more OEM drive-ability and street manners you are likely to compromise. I had a straight through 3" exhaust (no muff, lol), poly trans bushings and TTR upper mount for quite some time. Really wasn't THAT bad to me. It was usually the typical "A/C and idle is where it's noticeable" kinda thing.
Then I switched to the Powell rotated mounts/stock upper and threw a muffler out back and mother of god did it get much, much more comfortable. Threw a turbo on there and it got even a little more tolerable. I noticed and heard things that I completely forgot about, lol.
I guess my point here is that as car fanatics, we tend to adapt quite well. After your build, you probably won't think it's THAT bad. Do me a favor after a few months; though, and go ride in a bone stock 06 LSJ. I'm sure you get my point...
I know your comment isn't necessarily directed towards me, but I do want to throw my 2 cents in here.
Everyone has different tolerance levels. The more you modify an engine, the more OEM drive-ability and street manners you are likely to compromise. I had a straight through 3" exhaust (no muff, lol), poly trans bushings and TTR upper mount for quite some time. Really wasn't THAT bad to me. It was usually the typical "A/C and idle is where it's noticeable" kinda thing.
Then I switched to the Powell rotated mounts/stock upper and threw a muffler out back and mother of god did it get much, much more comfortable. Threw a turbo on there and it got even a little more tolerable. I noticed and heard things that I completely forgot about, lol.
I guess my point here is that as car fanatics, we tend to adapt quite well. After your build, you probably won't think it's THAT bad. Do me a favor after a few months; though, and go ride in a bone stock 06 LSJ. I'm sure you get my point...
definatly not directing anything to you...the kid i bought those shafts from was scared to install them cuz the thought the vibes may destroy the engine...LOL\
The comment towards bolus and the comment regarding drivability is totally understood. i did the same thing and went from having polys to OTTP mounts, louad ass ZZP exhaust to smooth Hahn...etc. certainly the DD aspect and creature comforts take a hit for performance.
But i have ridden in a stock Atom (Quicksilver, driven by Aaron Silver) and other than the wind in your face and the organ shifting tight suspension...it sounded like a bone stock LSJ(whining blower and all) so i believe there is a slight comparision
Now certainly bolus wont have dash rattles...
#21
Supporting Vendor
iTrader: (1)
http://www.zzperformance.com/cobalt_...1143&catid=143
ZZP shafts are much better designed than the other 2 choices and will produce gains on the dyno and the track over the other offerings.
ZZP shafts are much better designed than the other 2 choices and will produce gains on the dyno and the track over the other offerings.
#23
South Central *********
iTrader: (9)
http://www.zzperformance.com/cobalt_...1143&catid=143
ZZP shafts are much better designed than the other 2 choices and will produce gains on the dyno and the track over the other offerings.
ZZP shafts are much better designed than the other 2 choices and will produce gains on the dyno and the track over the other offerings.
what is the weight on your balance blanks?
#24
Senior Member
http://www.zzperformance.com/cobalt_...1143&catid=143
ZZP shafts are much better designed than the other 2 choices and will produce gains on the dyno and the track over the other offerings.
ZZP shafts are much better designed than the other 2 choices and will produce gains on the dyno and the track over the other offerings.
Man, that Saturday would suck...