Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

QTP install help!!

Thread Tools
 
Search this Thread
 
Old Aug 23, 2010 | 05:44 PM
  #1  
mulalleybs's Avatar
mulalleybs
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Jan 2009
Posts: 1,204
Likes: 14
From: Savannah Ga
Default QTP install help!!

Hey took my car to a exhaust shop to get the cutouts installed. Couple things that concerned me and not sure if it will be a prob or not..

The guys put the oval pipes that have the stickers "this side up" upside down on the car lol. The valve on the left side in the picture isn't centered on the turn down so does that mean he has to flip the motor around to line it up properly or does it not matter? Also will those turndowns protect the leaf spring from melting? they aren't canted down very much.. And the motors are touching the way its installed right now, im not sure if thats such a good idea.

And if anyone can post a link of their wiring of the cutouts with pictures that would be awesome because im taking it back to get wired up tomorrow.


On a side note i took out the stock c5z 2.5' h pipe and had them put in the stock c6z 3' h pipe and weld it back up to stock exhaust so when i opened the cutouts i would have full 3' exhaust. Even though its still through the stock mufflers i can tell the exhaust is much throatier and sounds much more mean.
Reply
Old Aug 23, 2010 | 08:30 PM
  #2  
diyguy's Avatar
diyguy
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2004
Posts: 3,024
Likes: 18
From: DFW Texas
Default

I don't see anything inherenty wrong with the install. If anything you may have to reverse the wiring on one of the two motors. One may try to open the other close. Can't really tell from this vantage point.

What I can tell you is you must learn how to properly open and close them or you are guaranteed to burn the motors out or the gearbox. There are dozens on little gears inside the reduction box with a LOT of torque.

When opening, when it gets loud - LET OFF THE SWITCH! Don't hold down the switch for any period of time. Use the "BUMP" method of closing them. That is, close them just by 'bumping' the switch in little short bursts until it gets quiet. There are countless numbers of people with these QTP or anybodies electric cutouts and they are pretty much the same. Many have stripped the gears, burn out motors, or strip out the collar bewteen the motor and butterfly valves.

Over time they WILL get out of synch -- where one closes before the other - more reason to get used to and use the switch bump method for opening and closing.

Many of these manf's will NOT honor their warranty as they say they will (they will blame YOU for the damage) and most require you to send back the 'defective' part leaving you with a wide open exhaust until the company feels like getting the repaired or repalcements back to you. Quite annoying to say the least.

Others report no significant problems. Just a heads up I went through 3 different ones before I found what I thought were the best ones for me.

And, lastly, no problem with heat on the spring. You are plenty ahead of any concerns for that.

Good Luck - easy to wire up, unless to have to switch polarity on one of them, even then no big deal.
Reply




All times are GMT -4. The time now is 07:59 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE