Question from dummy - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

RDesign · 05-08-2012, 07:14 AM

Hi!

I own a Camaro 2SS 45th Anniversary, and as many of Camaro's Owners in France, I would like to know your feedback about cutouts equipment.
Actually, maybe it's wrong but this is why I would need your opinion, I heard about some trouble on engine valves heads in case of cutouts equipment, right or wrong ? Anyway, is there is a risk to use cutouts for the engine (valves, injection management, and son on) ?

Thank you by advance !

To know more about French Camaros, you can have a look on this link:
http://www.camaro5.com/forums/showthread.php?t=217985

Regards,

hunt · 05-08-2012, 07:41 AM

Exhaust cutouts will have no effect on your valve covers, or any of your valve train at all.

I'm not sure if that's what your asking but i hope this helps.

RDesign · 05-08-2012, 08:42 AM

Thank you for your reply, it's good new. But you're right, to be sure to avoid any misunderstanding, I join a picture about the valves (in red area) I spoke about.

EWMAN · 05-08-2012, 08:59 AM

your question is probably based on someone telling you about valve warping.

IF you run an engine without any exhaust manifolds and get it hot, then shut it down there is a possibility of cold air entering the exhaust ports and when it hits the back of the valves it could warp the valve. this was most prevalent on engines around the early 70's when the new engine temps started getting much higher than what was normal. and new metallurgy in the valves themselves.
Open headers, at times have also been blamed for this affliction. although the actual culprit would be overheating the engine due to racing.
A cutout has about .05% possibility of hurting the valves. depending on where it is mounted. remember that the problem is cold air hitting hot valves, so if the cut out is a couple feet away from the heads (or more) you won't have any trouble with that problem.

RDesign · 05-08-2012, 09:13 AM

Thank you for you reply, I'm in course of translating because my "technical English" is not fluent but I do think that your answer is perfectly corresponding to the "rumor" I heard about.
I continue to analyse your answer, maybe I'll have other questions, anyway, many thanks !!

EWMAN · 05-08-2012, 09:39 AM

Ok, making it short,.... NO..... cutouts will NOT hurt your valves.....

RDesign · 05-08-2012, 09:47 AM

Quote:

Originally Posted by EWMAN

Ok, making it short,.... NO..... cutouts will NOT hurt your valves.....

lol Thank you !

tdi140 · 05-08-2012, 10:20 AM

here is a happy man

RDesign · 05-08-2012, 11:35 AM

Quote:

Originally Posted by tdi140

here is a happy man

Pas possible ! il m'a retrouvé !

It's not posible ! He caught me !

Falundir · 05-08-2012, 11:51 AM

I would love to drive around the Arc de Triomphe de l'Étoile with cutouts open!

RDesign · 05-08-2012, 12:11 PM

Quote:

Originally Posted by Falundir

I would love to drive around the Arc de Triomphe de l'Étoile with cutouts open!

Sure you're right !
If one day, I get some cutouts on mine, I'll go to this place, and I will make a video

just need to be careful with the Police...

tdi140 · 05-08-2012, 02:09 PM

Quote:

Originally Posted by RDesign

Pas possible ! il m'a retrouvé !

It's not posible ! He caught me !

a small world !!!

tdi140 · 05-08-2012, 02:17 PM

Quote:

Originally Posted by RDesign

Sure you're right !
If one day, I get some cutouts on mine, I'll go to this place, and I will make a video

just need to be careful with the Police...

Quote:

Originally Posted by tdi140

your reason!

Wolf · 02-21-2013, 03:29 PM

Quote:

Originally Posted by tdi140

here is a happy man

Teddy140 is here too !

05-08-2012, 07:14 AM	#1
RDesign Drives: 2012 2SS Europe 45th Join Date: Dec 2011 Location: France Posts: 100	Question from dummy Hi! I own a Camaro 2SS 45th Anniversary, and as many of Camaro's Owners in France, I would like to know your feedback about cutouts equipment. Actually, maybe it's wrong but this is why I would need your opinion, I heard about some trouble on engine valves heads in case of cutouts equipment, right or wrong ? Anyway, is there is a risk to use cutouts for the engine (valves, injection management, and son on) ? Thank you by advance ! To know more about French Camaros, you can have a look on this link: http://www.camaro5.com/forums/showthread.php?t=217985 Regards,

05-08-2012, 07:41 AM	#2
hunt Drives: 10 SS 08 675 13 Stryker 10 S1000RR Join Date: Jan 2010 Location: Lincoln, CA Posts: 216	Exhaust cutouts will have no effect on your valve covers, or any of your valve train at all. I'm not sure if that's what your asking but i hope this helps. __________________ Never put up with something high maintenance, unless it's high performance.

05-08-2012, 08:42 AM	#3
RDesign Drives: 2012 2SS Europe 45th Join Date: Dec 2011 Location: France Posts: 100	Thank you for your reply, it's good new. But you're right, to be sure to avoid any misunderstanding, I join a picture about the valves (in red area) I spoke about. Attached Images

05-08-2012, 08:59 AM	#4
EWMAN Drives: 2011 2SS RS L99 Blk/Blk Join Date: Oct 2011 Location: Norco, Ca Posts: 100	your question is probably based on someone telling you about valve warping. IF you run an engine without any exhaust manifolds and get it hot, then shut it down there is a possibility of cold air entering the exhaust ports and when it hits the back of the valves it could warp the valve. this was most prevalent on engines around the early 70's when the new engine temps started getting much higher than what was normal. and new metallurgy in the valves themselves. Open headers, at times have also been blamed for this affliction. although the actual culprit would be overheating the engine due to racing. A cutout has about .05% possibility of hurting the valves. depending on where it is mounted. remember that the problem is cold air hitting hot valves, so if the cut out is a couple feet away from the heads (or more) you won't have any trouble with that problem. __________________ EWMAN Evil, Wick, Mean and Nasty Aut Vinceri, Aut Mori

05-08-2012, 09:39 AM	#6
EWMAN Drives: 2011 2SS RS L99 Blk/Blk Join Date: Oct 2011 Location: Norco, Ca Posts: 100	Ok, making it short,.... NO..... cutouts will NOT hurt your valves..... __________________ EWMAN Evil, Wick, Mean and Nasty Aut Vinceri, Aut Mori

05-08-2012, 09:13 AM	#5
RDesign Drives: 2012 2SS Europe 45th Join Date: Dec 2011 Location: France Posts: 100	Thank you for you reply, I'm in course of translating because my "technical English" is not fluent but I do think that your answer is perfectly corresponding to the "rumor" I heard about. I continue to analyse your answer, maybe I'll have other questions, anyway, many thanks !!

05-08-2012, 10:20 AM	#8
tdi140 Drives: CAMARO 45TH manual gearbox Join Date: Dec 2011 Location: FRANCE (Europe), LILLE ;) Posts: 24 View My Garage	here is a happy man

05-08-2012, 11:51 AM	#10
Falundir Drives: 2017 1SS 1LE - Hyper Blue, P85DL Join Date: Jul 2011 Location: East Bay Posts: 2,189 View My Garage	I would love to drive around the Arc de Triomphe de l'Étoile with cutouts open!