How important IS A catchcan? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Whipped416 · 06-07-2011, 07:20 PM

how important is a catch can with a whipple sc. i am putting down 600 rwhp. .. what is the best catch can and easiest to install..
thanks for all the help C5

GretchenGotGrowl · 06-07-2011, 07:32 PM

Quote:

Originally Posted by blakewolf07

how important is a catch can with a whipple sc. i am putting down 600 rwhp. .. what is the best catch can and easiest to install..
thanks for all the help C5

Well oil ingestion can cause knock so you may be able to push a little more timing if you car is sucking in a lot of oil. It will definitely help with longevity. More importantly with FI is to a complete crankcase evacuation system. I went with the RX can for FI and breather and it works really well.

SC2150 · 06-07-2011, 07:35 PM

This is a good read:

http://www.camaro5.com/forums/showthread.php?t=102582

Caliman93230 · 06-07-2011, 07:43 PM

i would like a recommendation on good catch can made for a whipple set up, thanks

The Stig · 06-07-2011, 07:50 PM

Quote:

Originally Posted by SC2150

This is a good read:

http://www.camaro5.com/forums/showthread.php?t=102582

I was going to link you to this thread as well.

montreal2010yellow · 06-07-2011, 07:56 PM

RX seems to be one of the best product.

Inferno LSX · 06-08-2011, 08:29 AM

Quote:

Originally Posted by Caliman93230

i would like a recommendation on good catch can made for a whipple set up, thanks

+1 here. I have one, but I noticed there is a different one for FI cars.

SC2150 · 06-08-2011, 09:19 AM

The top mount SC's use the single valve system....the turbo or front mount SC's use the dual valve.

Stingr69 · 06-08-2011, 09:38 AM

The catch can removes oily contamination from the PCV system before it would have otherwise gotten into the intake. You do not want to breathe a bunch of oil into your engine. The deposits can form on the back of the valves and it can cause knock if the contamination is bad enough. GM designed an emissions control system to contain and burn the contaminants that requires no maintenance but your engine will be burning the crap if you do not add a separator (catch can) to remove it before it gets burned. You can do better if you are willing to spend a little money to buy a separator and do a small amount of maintenance once in a while by emptying the can.

Forced induction may require a different catch can setup than a normally aspirated car. The FI engine will not have vaccum during boost so the basic catch can will not do its job under boost. Any crankcase pressure and vapors would back up in to the intake at that point without something to prevent it. You dont want to just add a check valve because the excess pressure (and engine oil) WILL come out somewhere and it could be your engine seals. Not good!

If you arent that worried about the contamination during boost because it does not happen that often then the standard can setup will work for you. A little bit of crud will try to back up into the intake under boost but not that much. Certainly less would get burned than what you would get without any catch can at all. If you want to eliminate the crud under all operating conditions you may need a special catch can designed for boosted cars or 2 separate cans would work as well. The second can needs to be one without a check valve as it would pass air in one direction during non-boosted operation and act as a separator when under boost when the air is flowing in the opposite direction.

-Mark.

Inferno LSX · 06-08-2011, 11:12 AM

Quote:

Originally Posted by SC2150

The top mount SC's use the single valve system....the turbo or front mount SC's use the dual valve.

So my original catch can I had before my Whipple install is the one to use? It has one inlet and one outlet.

Tyler@ExtremePerformance · 06-08-2011, 11:34 AM

Bump 1 for Norris Motorsports catch cans! Great product!

SC2150 · 06-08-2011, 11:55 AM

Quote:

Originally Posted by Inferno LS3

So my original catch can I had before my Whipple install is the one to use? It has one inlet and one outlet.

Depends on the can how well it will work but with the RX can yes, the single valve unit works with a top mount SC.

East Coast Supercharging · 06-08-2011, 12:23 PM

There's a reason why we include one with all our supercharger kits!

(along with a breather too!)

Doug @ ECS

ravensjeff · 06-08-2011, 12:41 PM

Quote:

Originally Posted by East Coast Supercharging

There's a reason why we include one with all our supercharger kits!

(along with a breather too!)

Doug @ ECS

Doug,
I've also read where many with catch cans never find anything in them, especially hard driven cars with many miles and multiple runs down the strip. Is this because of how well they may be built (engine)? I know it can be a little tricky installing catch cans properly, but I doubt these in particular were (Lingenfelter customers-who installed mine during my build).

I've also seen where others do have contents in the can to empty. Any idea why some have nothing, and others do?

06-07-2011, 07:20 PM	#1
Whipped416 Drives: 2010 CAMARO SS Join Date: Mar 2011 Location: Texas Posts: 1,515 View My Garage	How important IS A catchcan? how important is a catch can with a whipple sc. i am putting down 600 rwhp. .. what is the best catch can and easiest to install.. thanks for all the help C5

06-07-2011, 07:43 PM	#4
Caliman93230 Drives: LS3S/C Join Date: Aug 2008 Location: CALI Posts: 1,344	i would like a recommendation on good catch can made for a whipple set up, thanks __________________ MODS whipple 2.9L s/c, ADM race scoop, 600 rwhp 550 wrtq, .

06-07-2011, 07:56 PM	#6
montreal2010yellow Drives: 2 LT/RS YELLOW, AUTO., VIN NO. 602 Join Date: May 2010 Location: LAVAL (10 min. north of Montreal), CANADA Posts: 3,526 View My Garage	RX seems to be one of the best product. __________________ T2 Facia, ACS TL1 Hood, ACS Winglets. G5CR CAI. Hotchsic Strut Brace and more...

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06-07-2011, 07:35 PM	#3
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	This is a good read: http://www.camaro5.com/forums/showthread.php?t=102582

06-08-2011, 09:19 AM	#8
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	The top mount SC's use the single valve system....the turbo or front mount SC's use the dual valve.

06-08-2011, 09:38 AM	#9
Stingr69 '69 Owned Since '79 Drives: '69 Z/28 LeMans Blue w/White Join Date: Oct 2008 Location: LR AR Posts: 1,847 View My Garage	The catch can removes oily contamination from the PCV system before it would have otherwise gotten into the intake. You do not want to breathe a bunch of oil into your engine. The deposits can form on the back of the valves and it can cause knock if the contamination is bad enough. GM designed an emissions control system to contain and burn the contaminants that requires no maintenance but your engine will be burning the crap if you do not add a separator (catch can) to remove it before it gets burned. You can do better if you are willing to spend a little money to buy a separator and do a small amount of maintenance once in a while by emptying the can. Forced induction may require a different catch can setup than a normally aspirated car. The FI engine will not have vaccum during boost so the basic catch can will not do its job under boost. Any crankcase pressure and vapors would back up in to the intake at that point without something to prevent it. You dont want to just add a check valve because the excess pressure (and engine oil) WILL come out somewhere and it could be your engine seals. Not good! If you arent that worried about the contamination during boost because it does not happen that often then the standard can setup will work for you. A little bit of crud will try to back up into the intake under boost but not that much. Certainly less would get burned than what you would get without any catch can at all. If you want to eliminate the crud under all operating conditions you may need a special catch can designed for boosted cars or 2 separate cans would work as well. The second can needs to be one without a check valve as it would pass air in one direction during non-boosted operation and act as a separator when under boost when the air is flowing in the opposite direction. -Mark.

06-08-2011, 11:34 AM	#11
Tyler@ExtremePerformance Drives: 2007 Trailblazer SS Join Date: Nov 2010 Location: Palm City, FL Posts: 232	Bump 1 for Norris Motorsports catch cans! Great product!

06-08-2011, 12:23 PM	#13
East Coast Supercharging Drives: 8 second C5 Drag Car, C6 Road racer Join Date: Sep 2009 Location: Cream Ridge, NJ 609-752-0321 Posts: 778	There's a reason why we include one with all our supercharger kits! (along with a breather too!) Doug @ ECS