Go Back   LS1TECH > WELCOME TO LS1TECH > New LS1 Owners - Newbie Tech
Sign in using an external account
Register Forgot Password?
Search

New LS1 Owners - Newbie Tech
Basic Technical Questions & Advice
Sponsored by
Improved Racing

Track gains with cutout???

Reply
 
Thread Tools Search this Thread
Old 08-23-2004, 07:35 AM   #1
TECH Resident
 
Uno99's Avatar
 
Trader Rating: 2
Join Date: Jul 2004
Location: Appleton Wi
Posts: 895
Default Track gains with cutout???

Does anyone think I will see any gains at the track with a cutout? I know it will free up some HP but will it be enough for a gain at the track.
__________________
Black 1999 A4 T/A
LT Headers, 2.5 inch TD's w/ X-pipe, TCI SSF 3000 2.2str 24K B&M Cooler 3.42 Gears, Nitto DR's
Suspension & Brake Upgrades, 2 Tone Interior, and Other Mics Parts
Uno99 is offline   Reply With Quote
Old 08-23-2004, 08:24 AM   #2
On The Tree
 
Trader Rating: 0
Join Date: Dec 2003
Posts: 115
Default

Depending on your muffler you could see 1/10 to 3/10's. I think it's well worth the 35 bucks.
__________________
2002 Z28 Hardtop M6
Boltons,TSP 228R cam
12.7 @ 110 (1.98 60') cut out and lid
12.22 @ 118.9 (1.98 60')
Lid and cut-out 328.9hp 342.9
Cam and LT's 392.1hp 370.5tq
M6HTZ is offline   Reply With Quote
Old 08-23-2004, 08:31 AM   #3
LS1Tech Co-Founder
 
Nine Ball's Avatar
 
Trader Rating: 38
Join Date: Nov 2001
Location: Houston, TX
Posts: 33,001
Default

definitely the king of bang for the buck when it comes to exhaust mods. Expect 0.15 to 0.20 off your ET and 1-2 mph.
__________________
Co-Founder, LS1Tech.com
Online Garage: www.fquick.com/NineBall
Nine Ball is offline   Reply With Quote
Old 08-23-2004, 08:47 AM   #4
PR Director
 
Deech's Avatar
 
Trader Rating: 8
Join Date: Nov 2001
Location: Pasadena, Tx
Posts: 5,913
Send a message via AIM to Deech
Default

To answer you question yes. Seen it done all the time.
__________________
Mike
2000 Black Trans Am M6 - Sold
Not Fast Enough!
2002 Pewter Tahoe LT 5.3L
'Hoe Magnet
http://www.home.earthlink.net/~slamm...opy%5b1%5d.jpg
Deech is offline   Reply With Quote
Old 08-23-2004, 10:14 AM   #5
TECH Resident
 
Uno99's Avatar
 
Trader Rating: 2
Join Date: Jul 2004
Location: Appleton Wi
Posts: 895
Default

I have Flowmaster now and from what I've been hearing that is not the best flowing muffler.
__________________
Black 1999 A4 T/A
LT Headers, 2.5 inch TD's w/ X-pipe, TCI SSF 3000 2.2str 24K B&M Cooler 3.42 Gears, Nitto DR's
Suspension & Brake Upgrades, 2 Tone Interior, and Other Mics Parts
Uno99 is offline   Reply With Quote
Old 08-23-2004, 10:39 AM   #6
TECH Enthusiast
 
Trader Rating: 0
Join Date: Apr 2004
Location: Chandler, Arizona
Posts: 749
Default

With a 224 cammed car and a STOCK muffler:

Cutout Open: 381 hp
Cutout Closed: 354 hp

I'd say that's worth 3 mph and .3 at the track. I've never run back to back at the track. I've never wanted to "waste" a good run with the cutout closed!
__________________
Thanks,
Glenn
2001 Camaro Z28 hardtop, M6, Comp 224/.581/112 cam, Patriot Golds, Rollmaster double roller chain, TSP 7.400 Pushrods, Stainless Works LT headers with catted Y pipe, Street-Pro electric cutout, SLP lid, 160 stat, SLP high capacity radiator, BMR tubular SFC's, 17x9.5 ZR1's, Lou's Short Stick, Harlan Shift Light, CAGS!, Mac rearend girdle; 367 rwtq, 381 rwhp 12.73 @ 113.8 mph at 1250 foot of altitude
glennhl is offline   Reply With Quote
Old 08-23-2004, 11:16 AM   #7
TECH Apprentice
 
Trader Rating: 0
Join Date: Apr 2003
Location: fairfax, va
Posts: 362
Default

0-60 with a G-Tech, with the cutout open it's a little slower on my stock exhaust A4. this was back to back test on the same stretch of road doing it 4 times. i guess on the topend is where the power increase is and more useful down the full 1/4.
__________________
TA and Slobra
skunk50 is offline   Reply With Quote
Old 08-23-2004, 12:26 PM   #8
11 Second Club
 
dubs6's Avatar
 
Trader Rating: 1
Join Date: May 2004
Location: Dallas (Bush/Tollway)
Posts: 618
Send a message via AIM to dubs6
Default

actually i saw 7hp peak and 10hp around 4000rpm on the dyno with cutout open over stock WS6 muffler which is supposed to flow a little better then stock t/a muffler
__________________
Past: 2001 H/C Ram Air
Present: 2007 CCSB 6L Silverado & 2006 Raven R1
dubs6 is offline   Reply With Quote
Old 08-23-2004, 01:52 PM   #9
TECH Apprentice
 
Trader Rating: 0
Join Date: Apr 2003
Location: fairfax, va
Posts: 362
Default

my McCord plate just completely broke off where the butterfly valve is welded to the center bar.

broke off at the weld. this happen to anyone?

i've only opened and closed it about 5-7 times and it's only 2 months old or so.
__________________
TA and Slobra
skunk50 is offline   Reply With Quote
Old 08-23-2004, 01:56 PM   #10
TECH Resident
 
Uno99's Avatar
 
Trader Rating: 2
Join Date: Jul 2004
Location: Appleton Wi
Posts: 895
Default

What a POS call the company and BItch.
__________________
Black 1999 A4 T/A
LT Headers, 2.5 inch TD's w/ X-pipe, TCI SSF 3000 2.2str 24K B&M Cooler 3.42 Gears, Nitto DR's
Suspension & Brake Upgrades, 2 Tone Interior, and Other Mics Parts
Uno99 is offline   Reply With Quote
Old 08-23-2004, 02:29 PM   #11
TECH Apprentice
 
Chupa's Avatar
 
Trader Rating: 0
Join Date: Apr 2003
Location: Houston, TX
Posts: 379
Send a message via ICQ to Chupa Send a message via AIM to Chupa
Default

Quote:
Originally Posted by skunk50
my McCord plate just completely broke off where the butterfly valve is welded to the center bar.

broke off at the weld. this happen to anyone?

i've only opened and closed it about 5-7 times and it's only 2 months old or so.
That happened on my QTP. However, they used tiny screws instead of welds. I found matching size screws, loc-tite'd them and screwed them in really tight. Too tight, actually - one of the heads popped off. DOH! I just took it over to a welding shop and they tack welded it back on for like a $15 tip.
__________________
2000 Black Trans Am
LT's, Icon Y-pipe, SLP lid + CAI, cutout, ROH ZR-6 wheels, SFC's, LCA's, Pro 5.0, Koni's, stereo
Chupa is offline   Reply With Quote
Old 08-23-2004, 10:13 PM   #12
Launching!
 
Trader Rating: 11
Join Date: Jul 2004
Location: Northeast Ohio
Posts: 233
Default

YES I HAVE!!! McCords are JUNK. "we bought a welder" they say ...well they neglect to metion they dont know how to use it!! I asked them why they changed and they said becasue it was stronger than the bolts- sorry the bolts do/did just fine. One one set their weld broke while i was playing with it off the car, honestly. Their customer service is very poo and you can almost never get ahold of them. When we did finally, theire response was" ok - sorry you dont like our product." and theire website says that they actually listen to their customers...LOL what a joke.

McCord powerplates are junk!


DMH has a nice piece, although more expensive. Try him first.
nick_s is offline   Reply With Quote
Old 08-23-2004, 11:22 PM   #13
TECH Apprentice
 
Chupa's Avatar
 
Trader Rating: 0
Join Date: Apr 2003
Location: Houston, TX
Posts: 379
Send a message via ICQ to Chupa Send a message via AIM to Chupa
Default

I just bought a http://www.streetpro.us/StreetStripPics.html cutout to replace the QTP because it was fluttering to badly. I'm very happy with it; the construction seems really durable. It's about $100 more, but the quality is apparent
__________________
2000 Black Trans Am
LT's, Icon Y-pipe, SLP lid + CAI, cutout, ROH ZR-6 wheels, SFC's, LCA's, Pro 5.0, Koni's, stereo
Chupa is offline   Reply With Quote
Old 08-26-2004, 12:50 PM   #14
TECH Resident
 
Uno99's Avatar
 
Trader Rating: 2
Join Date: Jul 2004
Location: Appleton Wi
Posts: 895
Default

Well went to track and gained .1 consistantly Worth every penny thx guys
__________________
Black 1999 A4 T/A
LT Headers, 2.5 inch TD's w/ X-pipe, TCI SSF 3000 2.2str 24K B&M Cooler 3.42 Gears, Nitto DR's
Suspension & Brake Upgrades, 2 Tone Interior, and Other Mics Parts
Uno99 is offline   Reply With Quote
Old 08-26-2004, 12:50 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
cutout, gains, ls1tech, track, weld, wheels


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 09:59 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details