HOW-TO: Remove Balance Shaft Chain - Page 3 - SRT Forums

adrenalineaiax · 04-10-2005, 02:33 PM

yes its an extra chain they put in for NO REASON to waste MONEY

l3it3r · 05-04-2005, 05:40 PM

any reason to KEEP it other than noise/vibrations?

Exhaust Depot · 05-04-2005, 05:50 PM

Reason for taking out the assembly is that you have alot less weight in the engine. Its about a good 15-20lbs for the assembly. If you remove the whole assy, i recommend a windage tray, that way you dont have to add 7qts of oil etc to make up for the void. I have some windage trays in stock, aobut 5 units.

On the 2.6L engine i had on my conquest, we ust to pull them out too. Those engiens where pretty big 4 bangers and i did not have much issues with them pulled out.

reddy · 05-04-2005, 06:08 PM

one of the discussions........ Another balance shaft q...please read

still want to know about vibration........ and is this hard to reverse if you decide you don't like it?

thanks for the how to!!

omniphil · 05-12-2005, 01:51 PM

Ok, I just did this mod, Question for those that have done it...

I removed the lower sprocket that the chain goes around and the bolt that goes thru it to hold the sprocket onto the balance shaft, I removed the chain, I also left of the sprocket and holding bolt, Will that give any issues with oil pressure? I'm assuming the inside of the shaft isnt presurized...

Also i left of the cover plate and bolts, thats probably ok too I think

l3it3r · 05-15-2005, 10:43 AM

how involved is this process? meaning, about how long would it take an *average* person to do it?

omniphil · 05-16-2005, 06:18 AM

Quote: Originally Posted by l3it3r

how involved is this process? meaning, about how long would it take an *average* person to do it?

This was my first time doing it, It took me about 4 hours as I was taking my time. If I had to do it again, probably about 3 hours. Its a very messy job as well.

The power is pretty noticable above 4000 rpms, but the vibration is pretty noticable too, I get vibration in the steering wheel at any rpm, the cars plastic vibrates at times, same with stuff in the glove box. So just a warning for those that think the vibration is not noticable, it definately is.. I even removed my motor mount inserts and that helped a little. The vibration isnt huge, just a minor annoyance...

If I knew how much it would have vibrated before hand I wouldn't have even bother to do it. Just my 2 cents...

srt4inliny · 05-19-2005, 11:36 AM

Quote: Originally Posted by omniphil

If I knew how much it would have vibrated before hand I wouldn't have even bother to do it. Just my 2 cents...

Thanks for letting us know this. I am sorry to make you sound like my guinea pig, but I like to have a smooth running car. I am pretty sure there are other ways to get 10 horses more out of the car.

04bluesmithjuice · 05-19-2005, 11:53 AM

Quote: Originally Posted by SRT4inLINY

Thanks for letting us know this. I am sorry to make you sound like my guinea pig, but I like to have a smooth running car. I am pretty sure there are other ways to get 10 horses more out of the car.

Your right, there are other ways to get 10 horespower, but the problem you are going to run into, especially if you go big turbo, is the assembly will break under 400+ hp applications. If it breaks, it could do more damage than actually removing it at this point. Plus 10 horsepower is 10 horsepower. Chris Barnett just did it and saved about 16 lbs and also shaved off about .2 of his et, and he is running stock srt4 motor in his 1st gen, stock turbo and stock ecu.

Chris Barnett · 05-19-2005, 11:22 PM

Balance shaft removal results

I posted my results on a different forum.

Basically picked up over 2 tenths in a car that was already running 12.80's.

tksrt4 · 05-20-2005, 08:49 PM

These threads are starting to confuse me. When removing just the chain SOME say you must plug the hole and SOME say you dont even need to bother???
I need to do this mod(just chain) and I gotta get this clear in my head??

Bill Hahn Jr. · 05-20-2005, 09:04 PM

My $.02:

Unless you are on a serious weight reduction crusade, the removal of the balance shaft assembly may not be worth it. We always removed them from the 2.4 engines we drag raced in our old low-9 second Neon, but they are staying in my '04 SRT, which I prize for its overall smoothness.

A subtle fact many overlook about removing the shafts is that it also reduces 'flywheel effect' by reducing the overall inertial requirement involved in accelerating the engine to higher RPM. You see, the emphasis in analyzing effects of a mod tends to always be on HP numbers. Yet, reducing flywheel effect on a traction-limited FWD car can also worsen transient wheelspin issues. Letting the engine rev quicker is not always advantageous when you can barely hook the car to the ground as it is!

With all due respect to Chris' car and the results he observed, with an automatic trans, it is really an Apple, and the SRT-4 is an Orange.

Chris Barnett · 05-20-2005, 10:43 PM

Quote: Originally Posted by Bill Hahn Jr.

With all due respect to Chris' car and the results he observed, with an automatic trans, it is really an Apple, and the SRT-4 is an Orange.

Which is why I posted my results and impressions in a totally different thread, and I made sure to clarify my setup differences.

And to tksrt4, if you remove the chain you MUST plug the hole. It doesn't matter whether or not you remove the shafts. You may not have problems at first, but you will eventually if you don't.

blacksrt4u · 05-21-2005, 11:03 AM

ok do you need to removed the assembly to plug the hole?? if so id just remove the whole assembly anywayz....what do you plug the hole with??

srt4police · 05-21-2005, 11:34 AM

Hey Guys, that was going to be my next question.

I have the skittle all apart right now. I want to leave the assembly in. I have already removed the chain and the plastic guides.

Heres my question:

WHAT HOLE DO I NEED TO PLUG????

05-04-2005, 05:40 PM	#32 (permalink)
l3it3r SRTforums Member Join Date: Nov 2003 Member Number: 5077 Location: FairfaxCountyVA Posts: 2,952	any reason to KEEP it other than noise/vibrations? __________________ Canon EOS 30D\|Canon EF 28-135mm f/3.5-5.6 IS Canon 18-55mm (kit lens), Canon 50mm f/1.8 II SanDisk 8GB ExtremeIII \| Canon 580EX Flash

05-04-2005, 06:08 PM	#34 (permalink)
reddy SRTforums Member Join Date: Mar 2004 Member Number: 9502 Location: MID-GA Posts: 895	one of the discussions........ Another balance shaft q...please read still want to know about vibration........ and is this hard to reverse if you decide you don't like it? thanks for the how to!! __________________ Stock 04' as far as u know!

05-12-2005, 01:51 PM	#35 (permalink)
omniphil SRTforums Member Join Date: Apr 2003 Member Number: 538 Location: NH Posts: 1,691	Ok, I just did this mod, Question for those that have done it... I removed the lower sprocket that the chain goes around and the bolt that goes thru it to hold the sprocket onto the balance shaft, I removed the chain, I also left of the sprocket and holding bolt, Will that give any issues with oil pressure? I'm assuming the inside of the shaft isnt presurized... Also i left of the cover plate and bolts, thats probably ok too I think __________________ ---This is my kung fu, and it is strong--- ---The surgeon general never said anything about smoking the competition--- 01' Neon ACR - Turbo (2650lbs - 242whp/226tq) R.I.P. -->http://home.comcast.net/~omniphil/acr/<-- 04' SRT-4 Lightweight (2680lbs - 291whp/338tq) -->http://home.comcast.net/~omniphil/acr4/<-- 08' Yamaha R1

05-15-2005, 10:43 AM	#36 (permalink)
l3it3r SRTforums Member Join Date: Nov 2003 Member Number: 5077 Location: FairfaxCountyVA Posts: 2,952	how involved is this process? meaning, about how long would it take an average person to do it? __________________ Canon EOS 30D\|Canon EF 28-135mm f/3.5-5.6 IS Canon 18-55mm (kit lens), Canon 50mm f/1.8 II SanDisk 8GB ExtremeIII \| Canon 580EX Flash

05-16-2005, 06:18 AM	#37 (permalink)
omniphil SRTforums Member Join Date: Apr 2003 Member Number: 538 Location: NH Posts: 1,691	Quote: Originally Posted by l3it3r how involved is this process? meaning, about how long would it take an average person to do it? This was my first time doing it, It took me about 4 hours as I was taking my time. If I had to do it again, probably about 3 hours. Its a very messy job as well. The power is pretty noticable above 4000 rpms, but the vibration is pretty noticable too, I get vibration in the steering wheel at any rpm, the cars plastic vibrates at times, same with stuff in the glove box. So just a warning for those that think the vibration is not noticable, it definately is.. I even removed my motor mount inserts and that helped a little. The vibration isnt huge, just a minor annoyance... If I knew how much it would have vibrated before hand I wouldn't have even bother to do it. Just my 2 cents... __________________ ---This is my kung fu, and it is strong--- ---The surgeon general never said anything about smoking the competition--- 01' Neon ACR - Turbo (2650lbs - 242whp/226tq) R.I.P. -->http://home.comcast.net/~omniphil/acr/<-- 04' SRT-4 Lightweight (2680lbs - 291whp/338tq) -->http://home.comcast.net/~omniphil/acr4/<-- 08' Yamaha R1 Last edited by omniphil; 05-16-2005 at 06:20 AM.

04-10-2005, 02:33 PM	#31 (permalink)
adrenalineaiax SRTforums Member Join Date: Jan 2004 Member Number: 7088 Location: . Posts: 11,019	yes its an extra chain they put in for NO REASON to waste MONEY

05-04-2005, 05:50 PM	#33 (permalink)
Exhaust Depot Registered User Join Date: Dec 2002 Member Number: 143 Location: Nivo's House Posts: 11,097	Reason for taking out the assembly is that you have alot less weight in the engine. Its about a good 15-20lbs for the assembly. If you remove the whole assy, i recommend a windage tray, that way you dont have to add 7qts of oil etc to make up for the void. I have some windage trays in stock, aobut 5 units. On the 2.6L engine i had on my conquest, we ust to pull them out too. Those engiens where pretty big 4 bangers and i did not have much issues with them pulled out.

05-19-2005, 11:36 AM	#38 (permalink)
srt4inliny SRTforums Member Join Date: Dec 2003 Member Number: 5834 Location: Suffolk L.I. NY Posts: 847	Quote: Originally Posted by omniphil If I knew how much it would have vibrated before hand I wouldn't have even bother to do it. Just my 2 cents... Thanks for letting us know this. I am sorry to make you sound like my guinea pig, but I like to have a smooth running car. I am pretty sure there are other ways to get 10 horses more out of the car. __________________

05-19-2005, 11:53 AM	#39 (permalink)
04bluesmithjuice SRTforums Member Join Date: Apr 2004 Member Number: 10189 Location: Florida Posts: 2,653	Quote: Originally Posted by SRT4inLINY Thanks for letting us know this. I am sorry to make you sound like my guinea pig, but I like to have a smooth running car. I am pretty sure there are other ways to get 10 horses more out of the car. Your right, there are other ways to get 10 horespower, but the problem you are going to run into, especially if you go big turbo, is the assembly will break under 400+ hp applications. If it breaks, it could do more damage than actually removing it at this point. Plus 10 horsepower is 10 horsepower. Chris Barnett just did it and saved about 16 lbs and also shaved off about .2 of his et, and he is running stock srt4 motor in his 1st gen, stock turbo and stock ecu. __________________ Brian 04 E-Blue SRT-4 Ask yourself one question: "When you turn your car on, does it return the favor?"

05-19-2005, 11:22 PM	#40 (permalink)
Chris Barnett SRTforums Member Join Date: Oct 2003 Member Number: 4264 Location: Colorado Posts: 428	Balance shaft removal results I posted my results on a different forum. Basically picked up over 2 tenths in a car that was already running 12.80's. __________________

05-20-2005, 08:49 PM	#41 (permalink)
tksrt4 SRTforums Member Join Date: Jan 2004 Member Number: 7534 Location: Cleveland OH Posts: 319	These threads are starting to confuse me. When removing just the chain SOME say you must plug the hole and SOME say you dont even need to bother??? I need to do this mod(just chain) and I gotta get this clear in my head??

05-20-2005, 09:04 PM	#42 (permalink)
Bill Hahn Jr. Registered User Join Date: Aug 2004 Member Number: 14521 Location: Yorkville, IL Posts: 23	My $.02: Unless you are on a serious weight reduction crusade, the removal of the balance shaft assembly may not be worth it. We always removed them from the 2.4 engines we drag raced in our old low-9 second Neon, but they are staying in my '04 SRT, which I prize for its overall smoothness. A subtle fact many overlook about removing the shafts is that it also reduces 'flywheel effect' by reducing the overall inertial requirement involved in accelerating the engine to higher RPM. You see, the emphasis in analyzing effects of a mod tends to always be on HP numbers. Yet, reducing flywheel effect on a traction-limited FWD car can also worsen transient wheelspin issues. Letting the engine rev quicker is not always advantageous when you can barely hook the car to the ground as it is! With all due respect to Chris' car and the results he observed, with an automatic trans, it is really an Apple, and the SRT-4 is an Orange. Last edited by Bill Hahn Jr.; 05-20-2005 at 09:11 PM.

05-20-2005, 10:43 PM	#43 (permalink)
Chris Barnett SRTforums Member Join Date: Oct 2003 Member Number: 4264 Location: Colorado Posts: 428	Quote: Originally Posted by Bill Hahn Jr. With all due respect to Chris' car and the results he observed, with an automatic trans, it is really an Apple, and the SRT-4 is an Orange. Which is why I posted my results and impressions in a totally different thread, and I made sure to clarify my setup differences. And to tksrt4, if you remove the chain you MUST plug the hole. It doesn't matter whether or not you remove the shafts. You may not have problems at first, but you will eventually if you don't. __________________

05-21-2005, 11:03 AM	#44 (permalink)
blacksrt4u SRTforums Member Join Date: Apr 2003 Member Number: 873 Location: fwb Posts: 987	ok do you need to removed the assembly to plug the hole?? if so id just remove the whole assembly anywayz....what do you plug the hole with?? __________________ 2005 A4 GTO....intake, headers, exhaust, vtach and nawwwz.. 2003 srt-4 SOLD..

05-21-2005, 11:34 AM	#45 (permalink)
srt4police SRTforums Member Join Date: Jan 2004 Member Number: 6575 Location: New Orleans Posts: 1,740	Hey Guys, that was going to be my next question. I have the skittle all apart right now. I want to leave the assembly in. I have already removed the chain and the plastic guides. Heres my question: WHAT HOLE DO I NEED TO PLUG???? __________________

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