does a cut out add hp ? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

brockv8 · 04-01-2009, 03:16 PM

other than sounding great does a cutout offer any hp gains over stock ?

thanks
brock

Hylton · 04-01-2009, 03:17 PM

Absolutely!

andyrew · 04-01-2009, 03:22 PM

Short answer?

Probably.

Mblock66 · 04-01-2009, 03:25 PM

If tuned for then yes. Cut outs are pre cats and really can effect backpressure. You can tune timing and AFR for things like this and it will help the end result a lot more then just slapping one on there.

Croathlete · 04-01-2009, 03:37 PM

You wouldn't tune if you had an electrical cutout, right?

Mblock66 · 04-01-2009, 03:40 PM

No you would. Electrical cutouts are controlled by throttle position and tuning can be measured the same way too. As RPMs increase and the cutout opens you would play with the scales. But if it was a fulltime cutout it would be a slightly different map then a gradual cutout

Croathlete · 04-01-2009, 03:42 PM

I was thinking more along the lines of a manually controlled cutout kind of like this...

http://www.quicktimeperformance.com/QTEC/index.php

CamaroSkooter · 04-01-2009, 03:48 PM

I'm curious too. I like the idea of being able to open up the cut-outs from inside the car if some moron is blaring his music next to me thinking he's cool.

Also, if you do cut-outs, where do you put them in relation to everything else in the exhaust system, and where do you run pipe, if any, from the cut out.

SAUCE · 04-01-2009, 04:41 PM

Quote:

Originally Posted by CamaroSkooter

I'm curious too. I like the idea of being able to open up the cut-outs from inside the car if some moron is blaring his music next to me thinking he's cool.

Also, if you do cut-outs, where do you put them in relation to everything else in the exhaust system, and where do you run pipe, if any, from the cut out.

This has all been discussed before!!! do a search with in the forum.

Hylton · 04-01-2009, 05:08 PM

Quote:

Originally Posted by CamaroSkooter

I'm curious too. I like the idea of being able to open up the cut-outs from inside the car if some moron is blaring his music next to me thinking he's cool.

Also, if you do cut-outs, where do you put them in relation to everything else in the exhaust system, and where do you run pipe, if any, from the cut out.

Most cut-outs are electric / on-demand. Go to yotube and search "cut out corvette". Piles of vids.

camarotoofast · 04-01-2009, 05:17 PM

You lose lowend TQ but gain it back with highend TQ with it open.A long time ago in my 2000 camaro (ls1) I gained 9rwhp with a crappyFlowbasher.

nfamous209 · 04-01-2009, 06:44 PM

add hp, no. free up hp yes, properly tuned.

*Milk 1027* · 04-01-2009, 07:00 PM

this video has videos

camarotoofast · 04-01-2009, 07:12 PM

Quote:

Originally Posted by nfamous209

add hp, no. free up hp yes, properly tuned.

I shouded of said free-up, your right.. Now my car has a GMMG cat-bac and it only gets 3 add RWHP on dyno(cutout open) becase the gmmg is very free flow. Ordering 2 cut-outs for my 2010 camaro next week.

04-01-2009, 03:16 PM	#1
brockv8 Drives: Yukon Join Date: Mar 2009 Location: houston Posts: 13	does a cut out add hp ? other than sounding great does a cutout offer any hp gains over stock ? thanks brock

04-01-2009, 03:17 PM	#2
Hylton Drives: fanboys and ass kissers crazy. Join Date: May 2008 Location: Ottawa, Ontario Posts: 7,280	Absolutely! __________________ "BBOMG - More than just a car show.... It's an experience!"

04-01-2009, 03:37 PM	#5
Croathlete Danny Drives: 2010 Camaro 2SS/RS Join Date: Nov 2007 Location: NYC Posts: 1,656	You wouldn't tune if you had an electrical cutout, right? __________________ 2SS/RS CGM with black rally stripes DON_RAFA describing my Noweeds cutouts - "Very Strong. When I couldn't see you I still heard you. Sounds like your car is pissed at the world."

04-01-2009, 03:42 PM	#7
Croathlete Danny Drives: 2010 Camaro 2SS/RS Join Date: Nov 2007 Location: NYC Posts: 1,656	I was thinking more along the lines of a manually controlled cutout kind of like this... http://www.quicktimeperformance.com/QTEC/index.php __________________ 2SS/RS CGM with black rally stripes DON_RAFA describing my Noweeds cutouts - "Very Strong. When I couldn't see you I still heard you. Sounds like your car is pissed at the world."

04-01-2009, 07:00 PM	#13
Milk 1027 Camaro➎ moderator Drives: '13 BLK 1LE Join Date: Aug 2008 Location: AZ Posts: 13,567 View My Garage	this video has videos __________________

04-01-2009, 03:22 PM	#3
andyrew Drives: Audi A4 STG3, Porsche 914 v8 Join Date: Oct 2008 Location: Modesto, ca Posts: 126 View My Garage	Short answer? Probably.

04-01-2009, 03:25 PM	#4
Mblock66 Drives: 2005 Subaru Legacy GT Join Date: Jul 2008 Location: NJ Posts: 312	If tuned for then yes. Cut outs are pre cats and really can effect backpressure. You can tune timing and AFR for things like this and it will help the end result a lot more then just slapping one on there.

04-01-2009, 03:40 PM	#6
Mblock66 Drives: 2005 Subaru Legacy GT Join Date: Jul 2008 Location: NJ Posts: 312	No you would. Electrical cutouts are controlled by throttle position and tuning can be measured the same way too. As RPMs increase and the cutout opens you would play with the scales. But if it was a fulltime cutout it would be a slightly different map then a gradual cutout

04-01-2009, 03:48 PM	#8
CamaroSkooter Retarded One-Legged Owl Drives: 2010 Black Camaro 2SS Join Date: Oct 2008 Location: San Antonio, TX Posts: 9,745	I'm curious too. I like the idea of being able to open up the cut-outs from inside the car if some moron is blaring his music next to me thinking he's cool. Also, if you do cut-outs, where do you put them in relation to everything else in the exhaust system, and where do you run pipe, if any, from the cut out.

04-01-2009, 05:17 PM	#11
camarotoofast VIN #586 is Home Drives: 00 Z28 Camaro 69 camaro 81 cam Join Date: Dec 2008 Location: Houston Tx Posts: 87	You lose lowend TQ but gain it back with highend TQ with it open.A long time ago in my 2000 camaro (ls1) I gained 9rwhp with a crappyFlowbasher.

04-01-2009, 06:44 PM	#12
nfamous209 Drives: 2002 Camaro z28 Join Date: May 2008 Location: patterson, ca Posts: 413	add hp, no. free up hp yes, properly tuned.

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