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Hey hey, just wondering what the few guys that have installed a centrifical supercharger did with their PCV/vent now that the system is "closed" ? Im looking into air/oil seperator tanks and not finding any ideal ones, could probly make my own outta a thermos/fittings/hose and some steel wool as the filter media.
I have wondered the same question. Right now I'm just using a breather on both valve covers and having no problems. Also joined 'Supercharger Forum', lots of discussion on the engine breather systems. T
I don't supercharge, but I did just install a catch can system to replace my breathers. I got tired of all the oil dripping all over my headers under hard acceleration.
This is a Moroso breather can connected with AN8 fittings, if memory serves. I had to remove the vacuum accumulator can which, of course, is a ROYAL pain in the rear and requires removal of the master cylinder. Which is why I now have a beautiful new master cylinder.
I have a bunch of valvetrain stuffed in there, so I had to mill the bottom of the port I installed in the valve cover to leave a gap to my stud girdle. Other than that, it was pretty straight forward. HUGE improvement to the cleanliness of my engine bay.
terrys6t8roadster i would add a pvc valve with a one way check valve.
Under boost you would be sending air into the valve covers but would be fine under normal load. The check valve would allow air to enter the base of the carb but not out.
Then on the breather side it will suck air as needed and if you have any blow by vent under the hood.
I've never worried about a catch can on carb cars because gas gets mixed in right away.
I have wondered the same question. Right now I'm just using a breather on both valve covers and having no problems. Also joined 'Supercharger Forum', lots of discussion on the engine breather systems. T
Thanks! I will check out the " supercharger forum", what kind of carb bonnet/hat is that? Looks like a Spectra... Looking good, I'm rocking the power hat which looks terrible.
Yes it is a Sprectre. What pressure are you running? Your's is the 6th C3 I seen with a centrifical on it. What regulates your boost pressure? I have a lot more questions about your set-up if you don't mind. T
Yes it is a Sprectre. What pressure are you running? Your's is the 6th C3 I seen with a centrifical on it. What regulates your boost pressure? I have a lot more questions about your set-up if you don't mind. T
Sure fire the questions at me, Its interesting looking at your setup... We clearly had a lot of similer problems. As far as "regulates boost" I assume your meaning the bypass valve on your discharge pipe, I'm only making 5 psi and figured I would be on the low end, Engine is over 400ci with massive heads on it. From everything I have read/heard under 10 psi a bypass valve is not needed/non issue.
I have wondered the same question. Right now I'm just using a breather on both valve covers and having no problems. Also joined 'Supercharger Forum', lots of discussion on the engine breather systems. T
Please share the link to this "Supercharger forum" i have searched without result, tuff to hide the noise of the C5-7 chatter.
I don't supercharge, but I did just install a catch can system to replace my breathers. I got tired of all the oil dripping all over my headers under hard acceleration.
This is a Moroso breather can connected with AN8 fittings, if memory serves. I had to remove the vacuum accumulator can which, of course, is a ROYAL pain in the rear and requires removal of the master cylinder. Which is why I now have a beautiful new master cylinder.
I have a bunch of valvetrain stuffed in there, so I had to mill the bottom of the port I installed in the valve cover to leave a gap to my stud girdle. Other than that, it was pretty straight forward. HUGE improvement to the cleanliness of my engine bay.
Ships port with 90 degree bend
Custom bracket was fun to make...
Black braided hose to make the connection
Great use of space, I believe thats where the W/s washer tank goes right!! Dont need that... Just like terrys6t8roadster has an MSD hiding where the coolant overflow tank goes...Great ideas.
Sure fire the questions at me, Its interesting looking at your setup... We clearly had a lot of similer problems. As far as "regulates boost" I assume your meaning the bypass valve on your discharge pipe, I'm only making 5 psi and figured I would be on the low end, Engine is over 400ci with massive heads on it. From everything I have read/heard under 10 psi a bypass valve is not needed/non issue.
Thanks for the opportunity for discussion. First, what size pullys, RPM speed of compressor? Mine are 3.88, 7" at crank, 7000 max engine rpm=45000 comp speed. Max on Vortec V-1
Note: a compressor is a pump and will continue making pressure until it blows unless regulated
Second: I have a fuel pressure regulator that is boost sensitive-- every pound of boost the fuel pressure increases a pound, base setting is 6 PSI. Are you using any such system?
How about a third? What is your engine temp? I can't get mine over 160*.T
Thanks for the opportunity for discussion. First, what size pullys, RPM speed of compressor? Mine are 3.88, 7" at crank, 7000 max engine rpm=45000 comp speed. Max on Vortec V-1
Note: a compressor is a pump and will continue making pressure until it blows unless regulated
Second: I have a fuel pressure regulator that is boost sensitive-- every pound of boost the fuel pressure increases a pound, base setting is 6 PSI. Are you using any such system?
How about a third? What is your engine temp? I can't get mine over 160*.T
I will have to measure the pullys and get back to you. Our superchargers are pumps but ARE NOT positive displacement pumps and WILL NOT continue making pressure untill it blows. They are centrifical pumps and reach a point that they will bypass, you could blank the discharge pipe and rev the engine to max and the charger will just make whatever boost it was efficiently designed for. An example of a POSITIVE DISPLACMENT PUMP that would build pressure untill it blows would be a piston pump, that being said you can damage the charger/compressor/pump or other parts associated by closing the throttle suddenly, that would be where the surge/bypass valve comes in, non issue at low boost/psi. I have had overheating issues from the beginning with this car, long before the first mod, could write a few threads about those issue's, but..the car stays perched at 200, havent had any issues with overheating in a few years. And yes I am running a boost referenced fuel pressure regulator, changed to electric pump and ran new lines.
" ARE NOT" positive displacement pumps. I'm always learning, Thanks. What are you doing about timing? I've the MSD 6AL-2 which controls the timing retard with the dist locked. T
Just picked up a 195 thermostadt yesterday to see if that will help get the engine temp up.
" ARE NOT" positive displacement pumps. I'm always learning, Thanks. What are you doing about timing? I've the MSD 6AL-2 which controls the timing retard with the dist locked. T
Just picked up a 195 thermostadt yesterday to see if that will help get the engine temp up.
Hopefully the caps did not give you the wrong impression, I know and work on pumps alot. The timing is a great issue, one that I know not alot about... Kinda stumped, not sure what to do or how to hook an msd controller up.
Supercharged PCV system?
