Should I replace rod bearing with supercharger install?

chrisg123 · 12-23-2015, 07:53 PM

Would you advise me to change my rod bearings with the supercharger install? I barley can afford the supercharger so I didn't want to replace the bearings. But I'm thinking it'll be better safe than sorry to replace them. Active autowerks is advising I change them. The car is a 2008 with only 33k miles on it.

mazing M3 · 12-23-2015, 08:11 PM

Change the bearing better a 2k job then a 25k job. Plan on the Harrop super charger later on and my bearing will be the first thing i replace before i put any extra power in that motor.

Ervin87 · 12-23-2015, 08:20 PM

I would. Just makes sense if you are going FI.

Watersedge1234 · 12-23-2015, 08:49 PM

I would (and did) even with a milder kit. Worth it for peace of mind. Mine were pretty beat up.

I'd also address differential bushings, or at least make sure they do a look over of the differential and check torque.

Plugs/coil packs are also advised, as they are more of a pain to change with the supercharger in the way. Ask why I know...supercharged, put in the break in miles, and my car fell flat on its face until I changed out my coil packs...ran flawlessly before FI. Mine has 79k however, so you might be good just changing plugs.

chrisg123 · 12-23-2015, 10:00 PM

Ok. Thx guys. Man I really couldn't afford the supercharger and now I have to replace rod bearings? Ugh!!!!!!! Exspensive!!!!

Watersedge1234 · 12-23-2015, 10:05 PM

Quote:

Originally Posted by chrisg123

Ok. Thx guys. Man I really couldn't afford the supercharger and now I have to replace rod bearings? Ugh!!!!!!! Exspensive!!!!

Yeah dude, total money pit...a lot of fun though (: definitely a new car after supercharging though. Truly a monster up top.

mrMTB · 12-23-2015, 10:11 PM

Quote:

Originally Posted by chrisg123

Ok. Thx guys. Man I really couldn't afford the supercharger and now I have to replace rod bearings? Ugh!!!!!!! Exspensive!!!!

Then you really really can't afford to something to go wrong after the supercharger is put on.

radiognome · 12-24-2015, 12:17 AM

Have you sent any oil samples to Blackstone? I agree with people above, and I did replace mine when installed SC, but if you are short on budget checking few samples with Blackstone would really help.

Honda · 12-24-2015, 12:39 AM

I don't think it is a necessity to change rod bearing to go for FI. If your car had above 100k then I would think about but for 33k, I would pass that and go supercharge personally.

Good luck

gerichmas · 12-24-2015, 01:33 AM

I would pass that and go supercharge personally.

chrisg123 · 12-24-2015, 07:23 AM

Thanks everyone. Looks like I'm gonna put the rod bearings in. I want the piece of mind.

12-23-2015, 07:53 PM	#1
chrisg123 Private First Class 27 Rep 142 Posts Drives: Scion xB Join Date: Mar 2015 Location: South Florida iTrader: (0)	Should I replace rod bearing with supercharger install? Would you advise me to change my rod bearings with the supercharger install? I barley can afford the supercharger so I didn't want to replace the bearings. But I'm thinking it'll be better safe than sorry to replace them. Active autowerks is advising I change them. The car is a 2008 with only 33k miles on it.
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12-23-2015, 08:11 PM	#2
mazing M3 Private First Class 16 Rep 130 Posts Drives: E93 M3 Join Date: Nov 2014 Location: Mass iTrader: (0)	Change the bearing better a 2k job then a 25k job. Plan on the Harrop super charger later on and my bearing will be the first thing i replace before i put any extra power in that motor.
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12-23-2015, 08:20 PM	#3
Ervin87 Captain 558 Rep 615 Posts Drives: E92 M3 \| B5 S4 \| E30 Join Date: Aug 2012 Location: Santa Clara, CA iTrader: (5)	I would. Just makes sense if you are going FI.
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12-23-2015, 08:49 PM	#4
Watersedge1234 Private 16 Rep 56 Posts Drives: 2008 AW/FR M3 Coupe Join Date: Aug 2015 Location: Ohio iTrader: (1)	I would (and did) even with a milder kit. Worth it for peace of mind. Mine were pretty beat up. I'd also address differential bushings, or at least make sure they do a look over of the differential and check torque. Plugs/coil packs are also advised, as they are more of a pain to change with the supercharger in the way. Ask why I know...supercharged, put in the break in miles, and my car fell flat on its face until I changed out my coil packs...ran flawlessly before FI. Mine has 79k however, so you might be good just changing plugs.
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12-23-2015, 10:00 PM	#5
chrisg123 Private First Class 27 Rep 142 Posts Drives: Scion xB Join Date: Mar 2015 Location: South Florida iTrader: (0)	Ok. Thx guys. Man I really couldn't afford the supercharger and now I have to replace rod bearings? Ugh!!!!!!! Exspensive!!!!
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12-24-2015, 12:17 AM	#8
radiognome Private First Class 38 Rep 184 Posts Drives: E93 M3 Join Date: Jan 2012 Location: Northern Virginia iTrader: (1)	Have you sent any oil samples to Blackstone? I agree with people above, and I did replace mine when installed SC, but if you are short on budget checking few samples with Blackstone would really help.
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12-24-2015, 12:39 AM	#9
Honda Lieutenant Colonel 289 Rep 1,535 Posts Drives: BMW Join Date: Feb 2014 Location: US iTrader: (25)	I don't think it is a necessity to change rod bearing to go for FI. If your car had above 100k then I would think about but for 33k, I would pass that and go supercharge personally. Good luck
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12-24-2015, 01:33 AM	#10
gerichmas Registered 0 Rep 3 Posts Drives: bmw Join Date: Dec 2015 Location: x5 iTrader: (0)	I would pass that and go supercharge personally. __________________ cool bmw m3
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12-24-2015, 07:23 AM	#11
chrisg123 Private First Class 27 Rep 142 Posts Drives: Scion xB Join Date: Mar 2015 Location: South Florida iTrader: (0)	Thanks everyone. Looks like I'm gonna put the rod bearings in. I want the piece of mind.
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