Baffled vs Non-Baffled Valve Covers for FI Application - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

pyr0b0y · 09-13-2012, 04:43 PM

Is a baffled valve cover necessary for a FI (twin turbo) motor?

I found a set of nice valve covers, but they are not baffled. Should I even be looking into them?

Does anyone sell a kit to add baffles to a non baffled valve cover?

SC2150 · 09-13-2012, 06:09 PM

W/out baffels the rocker arms throw oil right into the evac port.....well known issue. We take aluminum sheet stock and tig it in as a baffel if there is clearance enough, but you will have issues w/out baffels.

JLE58 · 09-13-2012, 07:22 PM

Good info Tracy.

BLACK10 · 09-14-2012, 08:42 AM

yep tons of blow-by/oil will make it out the valve cover ports with no baffels

pyr0b0y · 09-14-2012, 03:07 PM

Is there an (easy) way to add baffles to the valve covers?

ss/rs-matt · 11-23-2012, 04:57 PM

Bump!

Here is the inside of my Holley valve covers. I am getting blow-by should I cover the one big hole and keep the 4 smaller ones?

Jontall · 11-24-2012, 04:21 AM

Quote:

Originally Posted by ss/rs-matt

Bump!

Here is the inside of my Holley valve covers. I am getting blow-by should I cover the one big hole and keep the 4 smaller ones?

The ports on the Holley covers can be clocked to any desired angle (rotate it with a pliers). Clock the port 90 degrees like this and it will reduce blow-by.

SC2150 · 11-24-2012, 10:24 AM

That location on the Holley is what we see cause oil thrown issues. We tig in a baffel made of sheet aluminum. The goal is to deflect but still allow to vent.

ss/rs-matt · 11-24-2012, 03:08 PM

Quote:

Originally Posted by SC2150

That location on the Holley is what we see cause oil thrown issues. We tig in a baffel made of sheet aluminum. The goal is to deflect but still allow to vent.

I sealed the small holes and reduced the size of the bigger one...so far it seems to have helped. I still need a catch can though.

NC-V · 11-24-2012, 09:46 PM

I've had good success tigging in sheet aluminum baffles on valve covers that come with-out. You can put the vent holes in between rockers to prevent as much "splash" as possible. I've seen a reduction of roughly 3/4 of the oil circulation after the addition of the baffles. Obviously it will depend on design, longer runner with more separation between vents and breather opening seems best, essentially a catch can inside the VC.

09-13-2012, 04:43 PM	#1
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	Baffled vs Non-Baffled Valve Covers for FI Application Is a baffled valve cover necessary for a FI (twin turbo) motor? I found a set of nice valve covers, but they are not baffled. Should I even be looking into them? Does anyone sell a kit to add baffles to a non baffled valve cover? __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

09-14-2012, 03:07 PM	#5
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	Is there an (easy) way to add baffles to the valve covers? __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

11-23-2012, 04:57 PM	#6
ss/rs-matt Drives: 2015 ZL1 Join Date: Aug 2011 Location: California Posts: 1,731	Bump! Here is the inside of my Holley valve covers. I am getting blow-by should I cover the one big hole and keep the 4 smaller ones? __________________ "Want to know whats cooler than your murdered out Honda Civic? ...Any Audi." Daniel Tosh

09-13-2012, 06:09 PM	#2
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	W/out baffels the rocker arms throw oil right into the evac port.....well known issue. We take aluminum sheet stock and tig it in as a baffel if there is clearance enough, but you will have issues w/out baffels.

09-13-2012, 07:22 PM	#3
JLE58 Drives: CGM,twin turbo, cam 2010 SS/RS Join Date: Mar 2011 Location: ROCKMART, GA Posts: 2,185	Good info Tracy.

09-14-2012, 08:42 AM	#4
BLACK10 Drives: 2010 CAMARO. 10.04@133mph, 1.4 60' Join Date: Jul 2009 Location: Lafayette, Louisiana Posts: 4,585	yep tons of blow-by/oil will make it out the valve cover ports with no baffels

11-24-2012, 10:24 AM	#8
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	That location on the Holley is what we see cause oil thrown issues. We tig in a baffel made of sheet aluminum. The goal is to deflect but still allow to vent.

11-24-2012, 09:46 PM	#10
NC-V Drives: cts-v Join Date: Dec 2011 Location: Mooresville, NC Posts: 506	I've had good success tigging in sheet aluminum baffles on valve covers that come with-out. You can put the vent holes in between rockers to prevent as much "splash" as possible. I've seen a reduction of roughly 3/4 of the oil circulation after the addition of the baffles. Obviously it will depend on design, longer runner with more separation between vents and breather opening seems best, essentially a catch can inside the VC.