Do I need this? - Page 2 - Lateral-g Forums

**Mike Norris** · #11 01-06-2011, 06:40 AM

I am sure bigtyme1 will chime in, but the way he has the hoses setup is that the ports on the back of both valve covers are tied together with a "T" and the run to the large vacuum port (for the brake booster) on the back of the intake with no PCV valve.

This setup would put quite a bit of vacuum on the crankcase and possibly a lot of oil into the intake. He is going to check the intake and see if this is so.

I am guessing if there is a bunch of oil in there he will have to redo everything to run a PCV valve setup, but this will require a different tune to recalibrate for the less amount of air drawn into the intake.

If there is no oil, he is going to try and run a PCV valve setup anyhow and see how she runs. If it is quite bad due to the tune being done for a non PCV setup at that point, he can go back to running it the same way with the exception of just pulling vacuum from the rear of the passenger valve cover only. Now this is not right in my opinion, but it will work for what he has if it ran well before.

Hope this helps and waiting here how it works out.

The LS vacuum, PCV and breather systems are very simple for sure, but can be easily setup wrong without a proper diagram or advise.

Mike Norris

bigtyme1 · #12 01-06-2011, 07:06 PM

Mike, just realized you sell these catch can kits. Call you tomorrow.

Will your can fit between my head and AC compressor?

**Mike Norris** · #13 01-07-2011, 06:05 AM

I do not think it will fit there based on the picture, but it can mount about anywhere, be it on the engine in another location, the engine accessory brackets, inner fender area, firewall or even the core support.

Though it was originally built for the LS engines, it is a very universal unit. The bracket can spin 360* aorund the body, it can slide up and down the length of the body and it can be flipped over if need be. The hose length can be whatever it needs to be, as long as there are no large dips going to the can.

Just let me know and thanks.

Mike Norris

bigtyme1 · #14 01-15-2011, 02:43 PM

Follow this link, I ended up doing this today. Get GM 12577927. Its a Internal PCV system with Oil Seperator for a LS6 motor. You can basically eliminate all the hoses on the top of the motor. http://www.ls1howto.com/index.php?article=18 The catch can is still probably a better idea for racing but I don't have the room to put it in.