I Need help BAD with my Vortech SC!
it adjusts the preload on the spring in the cap.
The more threads showing, the less the preload, the less change in vacuum needed to open the BPV. ie, it will dump all your boost with small changes in vacuum
Conversely, screw it in too tight and the BPV wont open quick enough and you get compressor surge when you let off the gas.
There is no reason to touch it out of the box. And NEVER push on the diaphragm if you happen to take it off the pipe.That will f' it up.
The more threads showing, the less the preload, the less change in vacuum needed to open the BPV. ie, it will dump all your boost with small changes in vacuum
Conversely, screw it in too tight and the BPV wont open quick enough and you get compressor surge when you let off the gas.
There is no reason to touch it out of the box. And NEVER push on the diaphragm if you happen to take it off the pipe.That will f' it up.
Great, thanks for the awesome info. I loosened it to about 6 threads and it seems to boost much better now. Another question (i know i am probably getting annoying) Im seeing a lot of oil in the intake of the blower. How does oil even get out if there is always suction and how do i prevent this? Its enough that if i let it go a few days some will drip out. Seems like a little much to me.
Great, thanks for the awesome info. I loosened it to about 6 threads and it seems to boost much better now. Another question (i know i am probably getting annoying) Im seeing a lot of oil in the intake of the blower. How does oil even get out if there is always suction and how do i prevent this? Its enough that if i let it go a few days some will drip out. Seems like a little much to me.
Great, thanks for the awesome info. I loosened it to about 6 threads and it seems to boost much better now. Another question (i know i am probably getting annoying) Im seeing a lot of oil in the intake of the blower. How does oil even get out if there is always suction and how do i prevent this? Its enough that if i let it go a few days some will drip out. Seems like a little much to me
Last edited by jpc350; Aug 24, 2011 at 07:23 AM.
Check No 1
Check No 2
What type of Air Filter do you have?
Is it the K and N Type that comes with Vortech?
If so, it should have a very small amount of filter oil on it to filter the dirt. If it has to much Oil, residue will build up in the intake of the blower and complete intake system. Any oil in the intake system will also contaminate the MAF Sensor with oil/dirt.
MAF Sensor must be Clean to work correctly.
Possibly from the 5/8 hose connected to the back of the Vortech inlet filter that comes off the driver side air inlet...This hose connected to the OEM air inlet duct. I and others have have had it with no problems...Check the back of the filter,you should have this hose connected to it..Oil tends to accumulate at the blower inlet due to boost pressure.
What type of Air Filter do you have?
Is it the K and N Type that comes with Vortech?
If so, it should have a very small amount of filter oil on it to filter the dirt. If it has to much Oil, residue will build up in the intake of the blower and complete intake system. Any oil in the intake system will also contaminate the MAF Sensor with oil/dirt.
MAF Sensor must be Clean to work correctly.
it may be a good idea to remove the blower and send it back to Vortech, is this one of the old V2 units or the newer V3 ones? you may need a rebuild on the bolwer to have the seals replaced, if happened to my old one, its only like 250 bucks but you have to cover the shipping...
Just because their is oil residue in the intake does Not mean the Blower needs New Seals..... As pointed out before, their are other conditions to verify first before send the blower out to have new seals. Blower may Not be the Cause at all.......
I do agree 928 better deal, Vortech Customer Service Sucks........
I've never had a problem with Vortech, but then again i never delt with 928 either... but i agree with Old Man Z that if the filter is the K&N one that it may have too much oil on it...
Well i took it to a performance shop and they said im having heavy blowby. Can that be caused by belt slippage? They said to get a new belt, and buy an oil catch reservior for about 80 bucks and that will catch most of the oil vapor and almost totally eliminate the oil on the intake opening... never used them before, that sound right?
Get a catch can , pay someone in the know to put it on for you if you dont know how to hook it up. If the oil goes away then gratz. If the oil doesnt go away, send your used blower in for repair.
What is still leading you to believe your belt is slipping? You wont start to make any real boost till 4k. Didnt the readjustment of the bpv resolve this?
What is still leading you to believe your belt is slipping? You wont start to make any real boost till 4k. Didnt the readjustment of the bpv resolve this?
They may have just told him to get a new belt because his is old and getting dry rot pretty bad, he didnt mention that it was slipping... but to answer your first question blow-by is not caused by belt slip.
I guess im just not used to a supercharger taking so long to build boost. I was always told they make quick power. Thats my lack of research i guess. I get some lag in low rpm, almost like a belt is slipping, but it may just be me. The BPV adjustment helped but didnt make a huge impact. I guess this is just how it works. If i had known that the SC kit would take this long to spool, i would have explored other options. I am super happy with the power though. Thanks for all the great information guys, got a catch can coming from a friend that has an SR and doesnt have it hooked up, so he is just giving it to me
Again thank you all for the insight.
Again thank you all for the insight.
You may be overreacting to the oil residue..How much are you seeing...If not a really great amount it will be no problem...Any oil getting downstream of the blower??? Take a hose off and look at it..






