Electric Cutouts ?
Race Director
Joined: Feb 2008
Posts: 17,336
Likes: 8
From: Maker of Sharp Objects, AL - Roll Tide
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17
St. Jude Knife Maker
Just ordered mine from DMH this past tuesday. Seem to be some of the best. Also -do some searching on LS1tech.com. Lots of opinions there as well.
Racer
Joined: Aug 2007
Posts: 341
Likes: 0
From: Las Vegas NV
Last edited by JJ25; Feb 22, 2009 at 11:48 PM.
Drifting
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
Thanks!-Jason 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Racer
Joined: Nov 2003
Posts: 283
Likes: 2
From: Orlando Fl
That s kind of hard to believe! Im not saying its not true, just that it sounds unbelievable....Did you actually dyno it or was it a g-tech meter or are you a good sotp dyno reader? It sounds like our set-ups are similar and it makes me wonder if having exhaust is killing my 7.0....(mine made 540rwhp on a Dynojet in 90* with several mods less than i currently have) HMMMM....These would be great for the track.... Thanks!-Jason
Thanks!-Jason
Racer
Joined: Aug 2007
Posts: 341
Likes: 0
From: Las Vegas NV
OP...I did have QTP's on the Z I sold last year and one of the butterfly valves lost a set screw and one of the motors quit working. Only 4k miles on the car with the DMH's but no issues yet.
Drifting
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
The Z I sold summer of last year lost a couple rwhp and rwtq with them open. The sound of them being open was worth it. I was making 712-655 rwhp (torco tune vs gas pump tune) through the stock Ti's so I could spare a horse or two.
OP...I did have QTP's on the Z I sold last year and one of the butterfly valves lost a set screw and one of the motors quit working. Only 4k miles on the car with the DMH's but no issues yet.
OP...I did have QTP's on the Z I sold last year and one of the butterfly valves lost a set screw and one of the motors quit working. Only 4k miles on the car with the DMH's but no issues yet.
Burning Brakes
Joined: May 2003
Posts: 850
Likes: 0
From: Green Lane Pennsylvania
Just to qualify I am not a tunner, but my car has a maggy, cam and meth and it was tunned with them closed. I was told that the car will run leaner with them open hense the loss of power inmy particular setup. I have had good luck with the QTP so far. Had them on for three years.
Racer
Joined: Aug 2007
Posts: 341
Likes: 0
From: Las Vegas NV
I've not heard this before. Thank you for posting. My car is tuned for 93 octane but I can only find 91 at standard gas stations here in Vegas so I have to go to Rebel to get 4 gallons of 100 octane to every 13 gallons of 91 to get a 93ish mix. Since I'm already close, I don't want to chance anything. Whenever I run wide open, I'll close the cutouts just to be safe if the above is true.
Drifting
Joined: Sep 2004
Posts: 1,414
Likes: 1
From: NC
Holy crap!!! Your 427 must really respond to your cutouts. I did back to back dyno pulls with mine open vs. closed and only picked up 4rwhp and 6rwtq with the cutouts open. The shop and I thought it was pretty amazing that the factory Ti's flowed so well. I bought mine strickly for the sound.
In the video, are they open or closed when you first start it?
