Yet another Vortech Blown Thread .... possible solution inside
05-21-2009, 08:49 AM
#21
i would at minimum have vortech check where the bearing sits to make sure its not out of round. like quamen said, that many failures could be a combo of imperfect housings and abuse/out of spec use.
i'd prolly just send it back to vortech and xplain the situation. going down the path of doin your own bearings and seals could be worse
i'd prolly just send it back to vortech and xplain the situation. going down the path of doin your own bearings and seals could be worse
05-21-2009, 09:04 AM
#22
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good point, but I've already decided to do this myself
i would at minimum have vortech check where the bearing sits to make sure its not out of round. like quamen said, that many failures could be a combo of imperfect housings and abuse/out of spec use.
i'd prolly just send it back to vortech and xplain the situation. going down the path of doin your own bearings and seals could be worse
i'd prolly just send it back to vortech and xplain the situation. going down the path of doin your own bearings and seals could be worse
05-21-2009, 09:07 AM
#23
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FYI - I found a bearing manufacturer that's actually in Houston (GMN). They make a 15 degree angular contact bearing with a peek cage and 65k RPM for $95/each
05-21-2009, 10:34 AM
#24
Nothing taken personally bro.
My advice would be to not only add a oil cooler but to also check the oil supply line. A clogged oil line could easily be limiting the amount of oil that goes to your supercharger and causing premature bearing wear from increased heat.
I would also take a look at the oil viscosity you are using and bounce it off of someone like Frank at Vortech. You may not have to most optimum oil for the rpm's your blower is seeing.
I see those three things, oil cooler, verification that the supply line is unrestricted and the correct oil for your speeds, as being the key components to sucess on your setup. You could even create a self-contained system if you wanted like what Rotrex uses. You would obviously have to buy an expensive pump and make the reservior, but it would help if heat is in fact what is killing the bearings.
My advice would be to not only add a oil cooler but to also check the oil supply line. A clogged oil line could easily be limiting the amount of oil that goes to your supercharger and causing premature bearing wear from increased heat.
I would also take a look at the oil viscosity you are using and bounce it off of someone like Frank at Vortech. You may not have to most optimum oil for the rpm's your blower is seeing.
I see those three things, oil cooler, verification that the supply line is unrestricted and the correct oil for your speeds, as being the key components to sucess on your setup. You could even create a self-contained system if you wanted like what Rotrex uses. You would obviously have to buy an expensive pump and make the reservior, but it would help if heat is in fact what is killing the bearings.
05-21-2009, 10:54 AM
#25
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I started using Mobil 1 0w-40 after the last failure http://www.mobil.com/Canada-English/...il_1_0W-40.asp
Nothing taken personally bro.
My advice would be to not only add a oil cooler but to also check the oil supply line. A clogged oil line could easily be limiting the amount of oil that goes to your supercharger and causing premature bearing wear from increased heat.
I would also take a look at the oil viscosity you are using and bounce it off of someone like Frank at Vortech. You may not have to most optimum oil for the rpm's your blower is seeing.
I see those three things, oil cooler, verification that the supply line is unrestricted and the correct oil for your speeds, as being the key components to sucess on your setup. You could even create a self-contained system if you wanted like what Rotrex uses. You would obviously have to buy an expensive pump and make the reservior, but it would help if heat is in fact what is killing the bearings.
My advice would be to not only add a oil cooler but to also check the oil supply line. A clogged oil line could easily be limiting the amount of oil that goes to your supercharger and causing premature bearing wear from increased heat.
I would also take a look at the oil viscosity you are using and bounce it off of someone like Frank at Vortech. You may not have to most optimum oil for the rpm's your blower is seeing.
I see those three things, oil cooler, verification that the supply line is unrestricted and the correct oil for your speeds, as being the key components to sucess on your setup. You could even create a self-contained system if you wanted like what Rotrex uses. You would obviously have to buy an expensive pump and make the reservior, but it would help if heat is in fact what is killing the bearings.
06-09-2009, 12:04 PM
#30
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I Rebuilt the S/C and installed the 25 row oil cooler. Keeping the RPMs below 6600. I decided to go with the Rotella T synthetic 5w-40 oil. I am seeing 240 degrees peak for a few minutes while full throttle. After I back off it will quickly go back to 230 and say anywhere from 190-230 during normal driving - mix of open hwy and stop and go traffic.
Is 240 degrees as a peak still too high?
I gained 1lb of boost after the rebuild
I was never able to get above 10lbs, even in the colder weather previously. In the muggy hot humid weather now I gained 1lb! Could have been a loose clamp somewhere or leak.
Is 240 degrees as a peak still too high?
I gained 1lb of boost after the rebuild
I was never able to get above 10lbs, even in the colder weather previously. In the muggy hot humid weather now I gained 1lb! Could have been a loose clamp somewhere or leak.
06-09-2009, 02:38 PM
#32
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GNM Bearings with a peek cage. I can get you the exact part number if you like. I will need to find my invoice.
here are the specifications - GNM Angular Contact Bearing 6003 C TXM A7 UL (15 degree contact , Peek cage, abec 7, light preload)
rated for 65k RPM and 482 degrees farenheit
I will get the exact part and post it...I paid $95 for each one
here are the specifications - GNM Angular Contact Bearing 6003 C TXM A7 UL (15 degree contact , Peek cage, abec 7, light preload)
rated for 65k RPM and 482 degrees farenheit
I will get the exact part and post it...I paid $95 for each one
06-09-2009, 04:14 PM
#33
Unfortunately we won't know how much of any improvement they are until you get some good mileage on the car.
At least you are doing something different to fix the problem vs. rebuilding with the same parts, that will eventually fail again.
Keeping it at 6,600 is a good idea, but won't really tell us if these bearings made a difference if you do rev it as high as you used too, but I can understand not wanting to rebuild again - R&D is expensive
Condos for going on this venture for the community.
-George
GT Motorsports
At least you are doing something different to fix the problem vs. rebuilding with the same parts, that will eventually fail again.
Keeping it at 6,600 is a good idea, but won't really tell us if these bearings made a difference if you do rev it as high as you used too, but I can understand not wanting to rebuild again - R&D is expensive
Condos for going on this venture for the community.
-George
GT Motorsports
06-09-2009, 04:19 PM
#35
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+1^ I wish there was a thread on how to take the blower apart... I need to do mine this weekend =( Ill probably end up sending it to superchargerrebuilds
06-09-2009, 04:47 PM
#36
Around $300 for the bearings and I'm guessing about $20 for the oil shaft seal... as for the inner seal I'm curious to how he replaced that? although vortech will replace all bearings and all seals for $380 and they do the work, while checking the condition of the blower for you.... plus you do need some special tools to get the whole blower apart to replace the bearings.... it seems that it would be more cost effective to just let Vortech handle it...
Last edited by stealthz; 06-09-2009 at 05:01 PM.
06-10-2009, 10:42 AM
#38
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don't worry george, I won't be keeping at 6600 for much longer Getting my NT05s tomorrow and taking it to the strip Friday night! We shall see what happens...
GMN Part # S6003-CTXM ABECC7
rebuild cost me about ~$230.00
Getting my NT05s tomorrow and taking it to the strip Friday night! We shall see what happens... GMN Part # S6003-CTXM ABECC7
rebuild cost me about ~$230.00
Unfortunately we won't know how much of any improvement they are until you get some good mileage on the car.
At least you are doing something different to fix the problem vs. rebuilding with the same parts, that will eventually fail again.
Keeping it at 6,600 is a good idea, but won't really tell us if these bearings made a difference if you do rev it as high as you used too, but I can understand not wanting to rebuild again - R&D is expensive
Condos for going on this venture for the community.
-George
GT Motorsports
At least you are doing something different to fix the problem vs. rebuilding with the same parts, that will eventually fail again.
Keeping it at 6,600 is a good idea, but won't really tell us if these bearings made a difference if you do rev it as high as you used too, but I can understand not wanting to rebuild again - R&D is expensive
Condos for going on this venture for the community.
-George
GT Motorsports
Last edited by eez; 06-10-2009 at 10:54 AM.
06-10-2009, 10:50 AM
#39
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Around $300 for the bearings and I'm guessing about $20 for the oil shaft seal... as for the inner seal I'm curious to how he replaced that? although vortech will replace all bearings and all seals for $380 and they do the work, while checking the condition of the blower for you.... plus you do need some special tools to get the whole blower apart to replace the bearings.... it seems that it would be more cost effective to just let Vortech handle it...
Only special tool you need for the whole job is a press.
06-10-2009, 10:52 AM
#40
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Around $300 for the bearings and I'm guessing about $20 for the oil shaft seal... as for the inner seal I'm curious to how he replaced that? although vortech will replace all bearings and all seals for $380 and they do the work, while checking the condition of the blower for you.... plus you do need some special tools to get the whole blower apart to replace the bearings.... it seems that it would be more cost effective to just let Vortech handle it...