NBS question

[Flatgod]

I'm sure it's been asked before but I'm to lazy to search. Is it possible to install NBS without dropping the engine out of the car?

[The_cobalt_kid]

Iirc yes but it's a huge PITA or you need special tools or something

[qwikredline]

No dont be silly.... even if its remotely possible, it would be by lifting the motor up to get clearance to move them out....gotta ask why? It wont give you a big power increase and the motor will vibrate more....

[The_cobalt_kid]

No dont be silly.... even if its remotely possible, it would be by lifting the motor up to get clearance to move them out....gotta ask why? It wont give you a big power increase and the motor will vibrate more....

there you have it.

[Flatgod]

From what I have read the increase in vibration is only at the 3500rpm range. I already have the shafts just wondering if it would be possible to toss them ahead of schedule. I will be doing a fully balanced engine build in the future when A) the engine gives or B) I get bored with what I have.

[qwikredline]

okay so loosen off the mounts and lift er up.Probably tilt it to the pass side, and the driver side mount will flex. I bet Maven has done this in his sleep. I am thinking you need the J tool to hold the cam gears in place , I have one, its invaluable. Thank goodness u and me dont have the fancy VVT stuff hanging off the gears....

[Josh@OTTP]

It can be done with minimal effort, I normally take the whole strut off the passenger side when I work over there. It should take about 5-6 hours if you are taking your time.

[qwikredline]

FG the winter has been pretty light you think you may get out earlier this year?

[BlackBaltSw]

Its actually not all that hard, just have to know how to retime the engine. With the motor in place just go through the pass. side wheel well. Loosen the 3 engine mounts a little to let it come down slightly. Take off the belt, crank pulley, a bunch of 10mm bolt and 1 13 mm bolt. Take tensioner out of the head. Remove valve cover, take off timing chain. Remove water pump/balance shaft chain, remove 2 10mm bolts that hold both the balance shafts on. Slide out stock stuff, slide in nbs. then put it all back together.

[BlackBaltSw]

From what I have read the increase in vibration is only at the 3500rpm range. I already have the shafts just wondering if it would be possible to toss them ahead of schedule. I will be doing a fully balanced engine build in the future when A) the engine gives or B) I get bored with what I have.

And Balance shaft delete is MUCH MUCH MUCH better.

[Maven]

Yes it possible in car, and based on what you and your pop have been able to do I am sure when you look at the engine youll see the same thing I do and it wont take you anywhere near 5 hours.

[Domin8]

Lol. I see NBS and I start thinking New Body Style, as in 2001-2006 Tahoe. Glad I read the thread.

/off subject

[Flatgod]

I was going to be swapping heads this spring anyways so I figured it would be a good time to throw them in. Thanks for the tips and info guys.

Qwick, it has been a gorgeous winter here this year. Next to no snow, above 0 temps nearly 50% of the time. Christmas day I saw a guy cruising around on a Harley in a Santa suit. If I wasn't worried about getting road salt on the car I probably would have pulled it out on a few of the +10 days.

[The_cobalt_kid]

And Balance shaft delete is MUCH MUCH MUCH better.

Isn't it also impossible to undo?

[BlackBaltSw]

Isn't it also impossible to undo?

Not impossible to undo, just a pain in the ass.

[BlackBaltSw]

My complete rotating assembly was balanced extremely well. With balance shaft delete i had ZERO vibes. The car ran smoother then stock. Oh and i have powell rotated mounts.

[The_cobalt_kid]

Not impossible to undo, just a pain in the ass.

Cool, I thought they sealed the shaft perminately (i can't spell for sht)

[montecarloman]

What is the advantage of the neutral balance shafts? Other than not breaking @ high rpm?

[The_cobalt_kid]

thats it AFAIK

[BlackBaltSw]

Less rotating assembly weight. Faster revs, free'd up power.