Anyone Upgrade there v2 Impeller? Link inside!
10-12-2011, 10:29 AM
#1
Anyone Upgrade there v2 Impeller? Link inside!
So I have a V2 Supercharger and apparently you can upgrade the impeller. I'm running on a 2.62" pulley and anything above 6500rpm is useless power (supercharger losses efficiency). Now if I upgrade the impeller with this one I can go to 7000rpm and keep making boost/ I will make boost faster in all RPM ranges.
http://www.928motorsports.com/parts/...h_impeller.php
Sounds like fun and not to expensive, could always be cheaper though.
Let me know what you guys think. Hopefully my V2 can be upgraded.
http://www.starrland.com/Supercharge...%202-22-08.pdf -Rebuilding Vortech Supercharger, Step-By-Step (Thanks McSteve for finding this)
http://my350z.com/forum/forced-induc...ller-dyno.html - Performance difference from just the Impeller Upgrade
http://www.928motorsports.com/parts/...h_impeller.php
Sounds like fun and not to expensive, could always be cheaper though.
Let me know what you guys think. Hopefully my V2 can be upgraded.
http://www.starrland.com/Supercharge...%202-22-08.pdf -Rebuilding Vortech Supercharger, Step-By-Step (Thanks McSteve for finding this)
http://my350z.com/forum/forced-induc...ller-dyno.html - Performance difference from just the Impeller Upgrade
Last edited by OC_Nooby; 10-13-2011 at 03:33 PM.
10-12-2011, 10:48 AM
#2
Newbie - Just Registered
Join Date: Oct 2011
Posts: 6
So I have a V2 Supercharger and apparently you can upgrade the impeller. I'm running on a 2.62" pulley and anything above 6500rpm is useless power (supercharger losses efficiency). Now if I upgrade the impeller with this one I can go to 7000rpm and keep making boost/ I will make boost faster in all RPM ranges.
http://www.928motorsports.com/parts/...h_impeller.php
Sounds like fun and not to expensive, could always be cheaper though.
Let me know what you guys think. Hopefully my V2 can be upgraded.
http://www.928motorsports.com/parts/...h_impeller.php
Sounds like fun and not to expensive, could always be cheaper though.
Let me know what you guys think. Hopefully my V2 can be upgraded.
10-12-2011, 12:30 PM
#4
http://forums.maxima.org/supercharge...ed-orgers.html
i didn't know you have to pay for the rebuild AND the upgrade...
http://my350z.com/forum/forced-induc...ml#post4900712
i didn't know you have to pay for the rebuild AND the upgrade...
http://my350z.com/forum/forced-induc...ml#post4900712
just called vortech and found out the Si trim upgrade is available. all i have to do is send in my current V-2 SQ trim head unit and they will install the upgraded Si trim compressor wheel. other wise all internals and the diffuser assembly stay the same. cost will be $329.00. i guess i will be the first one to roll with this! supercharger is comming off this weekend and being sent out to vortech for the upgrade. i will keep you guy's posted on the outcome.
Last edited by McSteve; 10-12-2011 at 12:43 PM.
10-12-2011, 01:29 PM
#5
http://forums.maxima.org/supercharge...ed-orgers.html
i didn't know you have to pay for the rebuild AND the upgrade...
http://my350z.com/forum/forced-induc...ml#post4900712
i didn't know you have to pay for the rebuild AND the upgrade...
http://my350z.com/forum/forced-induc...ml#post4900712
Plus i'm sure you can get the seals/bearings elsewhere. The bearing is a very general one. Seals might be tricky but could be sourced possibly. The impeller though might make this better then the SI Trim or equal to it. I dunno, thanks for the links.
10-12-2011, 01:44 PM
#6
Here is a link to a rebuild of just the oil seals. I guess that pretty much what vortech does + the bearing (which can be purchased or upgraded).
http://forums.maxima.org/supercharge...v2-blower.html (Thanks to 99BlackMaxMS)
So your looking at $60 plus the bearing to rebuild it yourself, then another say $500 for the upgraded impeller.
Total of $560 and your brand new with extra boost across the rpm range and good to 7k with a 2.62 .
http://forums.maxima.org/supercharge...v2-blower.html (Thanks to 99BlackMaxMS)
So your looking at $60 plus the bearing to rebuild it yourself, then another say $500 for the upgraded impeller.
Total of $560 and your brand new with extra boost across the rpm range and good to 7k with a 2.62 .
10-12-2011, 03:58 PM
#7
http://my350z.com/forum/forced-induc...ller-dyno.html
Although his motor is a 3.5L I'm making the same power (even more, 345whp, 295tq). All he did was the impeller upgrade. So this will net roughly 40whp/40tq and he never went past 6500rpm (I'll rev to 7k).
I'm starting to think this is a great mod for the supercharger. Damn winter time and I have to store the car. Ohh well, maybe they will have a Christmas deal or something
Although his motor is a 3.5L I'm making the same power (even more, 345whp, 295tq). All he did was the impeller upgrade. So this will net roughly 40whp/40tq and he never went past 6500rpm (I'll rev to 7k).
I'm starting to think this is a great mod for the supercharger. Damn winter time and I have to store the car. Ohh well, maybe they will have a Christmas deal or something
10-13-2011, 07:23 AM
#10
10-13-2011, 07:34 AM
#11
I know some had mentioned this a an option before but I dont believe anyone has done it yet.
10-13-2011, 08:19 AM
#12
The impeller I believe is around 500.00 and the cost for a blower rebuild is around 400.00 and the upgrade I believe is around that price also last I remember. But in order to do an blower upgrade, Vortech requires a rebuld to be done at the same time.
10-13-2011, 09:28 AM
#13
Well I just called Vortech to put an end to that guessing game. The rep told me the upgrade is $329 plus shipping. They just change the impeller and send it back. According to him they don't open the unit up. So you can still do the rebuild according to DiY and then send it in.
Last edited by McSteve; 10-13-2011 at 09:53 AM.
10-13-2011, 10:48 AM
#14
Well I just called Vortech to put an end to that guessing game. The rep told me the upgrade is $329 plus shipping. They just change the impeller and send it back. According to him they don't open the unit up. So you can still do the rebuild according to DiY and then send it in.
But they are known for saying one thing one time and then saying another after they've spoken to there techs.
Last edited by Flava_24/7; 10-13-2011 at 10:54 AM.
10-13-2011, 02:13 PM
#15
The thing that's worth noting is it spins to 60k rpm. How much does the new SI trim spin to 52-53k rpm? Couple that with a lower pulley say my 2.62" which runs out of steam at 6500rpm (current setup).
I can technically spin the blower to 7k and still make boost. So all for $600-700 will say roughly you get an upgraded impeller and all the bearings and seals for a nice rebuild. Vortech charges an arm and a leg for a "rebuild" when you can do the same and put better bearings in there for cheaper. If I keep my car/no one buys it I'll upgrade the blower and do a full write up. I currently make 13.4 PSI roughly at redline. So it would be interesting to see what this does with just an Impeller change.
maybe go as far as make a group deal with them if possible...
I can technically spin the blower to 7k and still make boost. So all for $600-700 will say roughly you get an upgraded impeller and all the bearings and seals for a nice rebuild. Vortech charges an arm and a leg for a "rebuild" when you can do the same and put better bearings in there for cheaper. If I keep my car/no one buys it I'll upgrade the blower and do a full write up. I currently make 13.4 PSI roughly at redline. So it would be interesting to see what this does with just an Impeller change.
maybe go as far as make a group deal with them if possible...
Last edited by OC_Nooby; 10-13-2011 at 02:21 PM.
10-13-2011, 03:11 PM
#16
well the limiting factor in the spin limit of the blower are the bearings and not the impeller i would imagine. So with any impeller you'll gain linearly more power as revolutions increase.
The vanes in the Si upgrade are not straight anymore either. So i wonder how big of a difference there is between the impeller you posted and the Si trim. Since I believe the gain of 15% across the band is pretty similar to the gains of going from S to Si trim. They don't post a peak efficiency either. I'm sure if you upgrade your bearings you can spin your Si or S to whatever you want. People on the mustang forums brag on how much the Vortechs like to be overspun.
The vanes in the Si upgrade are not straight anymore either. So i wonder how big of a difference there is between the impeller you posted and the Si trim. Since I believe the gain of 15% across the band is pretty similar to the gains of going from S to Si trim. They don't post a peak efficiency either. I'm sure if you upgrade your bearings you can spin your Si or S to whatever you want. People on the mustang forums brag on how much the Vortechs like to be overspun.
Last edited by McSteve; 10-13-2011 at 03:15 PM.
10-13-2011, 03:26 PM
#17
well the limiting factor in the spin limit of the blower are the bearings and not the impeller i would imagine. So with any impeller you'll gain linearly more power as revolutions increase.
The vanes in the Si upgrade are not straight anymore either. So i wonder how big of a difference there is between the impeller you posted and the Si trim. Since I believe the gain of 15% across the band is pretty similar to the gains of going from S to Si trim. They don't post a peak efficiency either. I'm sure if you upgrade your bearings you can spin your Si or S to whatever you want. People on the mustang forums brag on how much the Vortechs like to be overspun.
The vanes in the Si upgrade are not straight anymore either. So i wonder how big of a difference there is between the impeller you posted and the Si trim. Since I believe the gain of 15% across the band is pretty similar to the gains of going from S to Si trim. They don't post a peak efficiency either. I'm sure if you upgrade your bearings you can spin your Si or S to whatever you want. People on the mustang forums brag on how much the Vortechs like to be overspun.
Like I said with my 2.62" pulley I can only go to 6500 rpm and make boost. Anything past that and I felt no additional power with my setup. If I had a bigger pulley then it might be a different story. So this new impeller with better bearings would complement my current setup to 7k and help across the rpm band.
Bearings aren't the limiting factor here, the impeller is. Bearings might be the weak point once upgrading to the better impeller but that's why you change them out
Last edited by OC_Nooby; 10-13-2011 at 03:35 PM.
10-17-2011, 02:31 PM
#19
10-18-2011, 01:48 PM
#21
10-18-2011, 08:32 PM
#22
http://my350z.com/forum/forced-induc...er-414whp.html
He's only running at 10psi, not sure if its an SI trim before he put the 928 Impeller.
. Still made a difference in power with the same tune.
He's only running at 10psi, not sure if its an SI trim before he put the 928 Impeller.
. Still made a difference in power with the same tune.
10-19-2011, 08:12 AM
#24
Thats the quote I got from them, I asked if it would fit the V2. Guess i'll check to see the trim number on my blower as all I know its a V2
10-19-2011, 11:23 AM
#25
did you see the attachments?
THe black is the Si, and the other two are the 928 and S trim. I thought the Si trim was supposed to build boost quicker across the rpm range and not later for higher top end?
I think i might still look into the Si trim... unless they do offer some special deals at 928. Did you see their impeller shims? Once I get my blower I'll see if there's any room for them.
I believe my blower will need a rebuild too. Apparently it has 60k miles on it and was never rebuilt...
THe black is the Si, and the other two are the 928 and S trim. I thought the Si trim was supposed to build boost quicker across the rpm range and not later for higher top end?
I think i might still look into the Si trim... unless they do offer some special deals at 928. Did you see their impeller shims? Once I get my blower I'll see if there's any room for them.
I believe my blower will need a rebuild too. Apparently it has 60k miles on it and was never rebuilt...
Last edited by McSteve; 10-19-2011 at 11:42 AM.
10-19-2011, 12:49 PM
#26
First of all the other impellers aren't even fully spinning. That's a horrible comparison. The 928 can be spun to 60k...
You gotta remember. It's also about the pulley. I have a 2.62" pulley. My V2 runs out of efficiency at 6500 rpm which is roughly 54000 rpm using Vortechs calculator. Using the same pulley but the better impeller I could rev to 7000rpm and keep making power with the blower.
Anywho until someone does this, we can't compare really... Where did you get the attachment (haven't looked into it).
You gotta remember. It's also about the pulley. I have a 2.62" pulley. My V2 runs out of efficiency at 6500 rpm which is roughly 54000 rpm using Vortechs calculator. Using the same pulley but the better impeller I could rev to 7000rpm and keep making power with the blower.
Anywho until someone does this, we can't compare really... Where did you get the attachment (haven't looked into it).
Last edited by OC_Nooby; 10-19-2011 at 01:02 PM.
10-19-2011, 02:14 PM
#27
here's the quote
So, i decided to compare efficencies between the 928m impeller, sc impeller and the si impeller.
Disclaimer to keep in mind is that the 928M V+ and SC impeller #'s musta been done on a V-1 blower compared to my V-3 (based on Quamen's posted impeller speed calc). The volute housing etc is the same size, only straight cut v-1 gears vs helical v-2 gears. Not to mention the huge installation differences between our 2 setups I know my numbers are pretty representative of the street and dyno for psi at given engine rpm.
I went back and put all of Quamen's log #'s into an excel sheet and calculated impeller speed at all the rpms. then compared the amount of impeller revs it took to create the associated boost. the gets rid of pulley size differences for the most part. Did the same with my Si impeller.
Conclusion - that 928M impeller works nicely for low end power. However not much different than the stock impeller. Based on these pulls, the 928M makes more boost per impeller rev up til ~35000. It would be interesting to see data on the 928M pulley at 53000 where i brought my Si up to. It might even keep a steeper slope and surpass the Si.
Now all of this is irrelevant without corresponding hp # at each point, as we all know boost doesnt mean horsepower.
Neat!
Disclaimer to keep in mind is that the 928M V+ and SC impeller #'s musta been done on a V-1 blower compared to my V-3 (based on Quamen's posted impeller speed calc). The volute housing etc is the same size, only straight cut v-1 gears vs helical v-2 gears. Not to mention the huge installation differences between our 2 setups
I know my numbers are pretty representative of the street and dyno for psi at given engine rpm.I went back and put all of Quamen's log #'s into an excel sheet and calculated impeller speed at all the rpms. then compared the amount of impeller revs it took to create the associated boost. the gets rid of pulley size differences for the most part. Did the same with my Si impeller.
Conclusion - that 928M impeller works nicely for low end power. However not much different than the stock impeller. Based on these pulls, the 928M makes more boost per impeller rev up til ~35000. It would be interesting to see data on the 928M pulley at 53000 where i brought my Si up to. It might even keep a steeper slope and surpass the Si.
Now all of this is irrelevant without corresponding hp # at each point, as we all know boost doesnt mean horsepower.
Neat!
10-19-2011, 02:19 PM
#28
And this, there was some people dissenting but it's not an absolute graph but good enough for basic comparisons.
It's all off the last page of the thread you posted on my350z
it looks like the V+ will be producing much more boost higher up, judging by the exponential curve at least....
It's all off the last page of the thread you posted on my350z
So here is the graph rerun with your new pulley info. The 928 mactches much closer at the higher rpms now. I would also guess that your more direct design and shorter piping helps get 3 psi early on. Love to see other logs of 'standard' setups.
I also added in 2 different pulley on my blower. Good example of how pulley size is irrelevant when making boost. You have to spin the impeller at a certain speed to get X amount of boost, regardless of pulley. Just depends on how early you want the boost.
Another interesting note is that even with a smaller pulley, you still do not gain more boost in the low rpms. Differences only show up at 4000+ engine rpms. Again, not surprising based on centrifugal design.
I also added in 2 different pulley on my blower. Good example of how pulley size is irrelevant when making boost. You have to spin the impeller at a certain speed to get X amount of boost, regardless of pulley. Just depends on how early you want the boost.
Another interesting note is that even with a smaller pulley, you still do not gain more boost in the low rpms. Differences only show up at 4000+ engine rpms. Again, not surprising based on centrifugal design.
it looks like the V+ will be producing much more boost higher up, judging by the exponential curve at least....
10-19-2011, 02:40 PM
#29
It looks like it could surpass the SI pulley 1
10-19-2011, 05:32 PM
#31
i think the ebay link impeller might be the same ones... you can get a rebuild kit from superchargerrebuild.com and the impeller for 600 bucks which looks really similar to the 928 impeller.... now that would be a deal.
10-19-2011, 07:33 PM
#32
I believe they are the same, just can't check eBay links at work
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