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Exhaust Cut-out [Merged 8-9] cut out bypass

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Ghettoraid

20+ Year Contributor
68
0
Nov 24, 2002
I have searched it, found this thread ... seems inconclusive.

I'd like to pick up one of those electronic cutouts... been told its a pain in the ass to have to lift car, unscrew three nuts, etc..

allowing me to run straight pipe (sounds funny LOL) at high boost on the strip... or when I want to be an #@%#@%#@%#@%#@%#@%#@% on the street...

Is it wise? I'm using what I'm told is a BIIIG turbo... so it might be a bad idea in my case... !! Last thing I want is more turbo lag... but if cutout will make the climb to 3,8 a little quicker I'm definitely game...

TIA
 
I used a "cutout" last year; it worked well at the track.

My original tests yielded a few 10ths and 2-3 mph in the 1/4 by simply uncapping the exhaust before the test pipe. I used a simple wing nut type cutout, commonly used on headers on domestic cars.

Having said that, I must also say that my catback was less than optimal, and opening it up before the restrictive 2.25" muffler helped exhaust flow immensly. I have since upgraded to a full 3" exhaust, without a cutout.

Lastly, the simple wing nut type cutout is not IMO "a pain in the ass". The car did not have to be lifted to uncap it, and it could be done in less than one minute any time, any place.

Good luck with your project.
 
hmmm

yeah my car is sort of low

Just to jack the damn thign up you have to first drive it onto some wooden slats.. LoL
 
The guy's that are telling me to do it have a friend with a WRX that his it...

I might talk to him before I do it.
 
Hey guy's what's up. OK here is the scoop on this. I just recently purchased a electric exhaust cutout system from www.quicktimeperformance.com. I have yet to put it on my car(because the car is still in pieces right now). I have been talking back and forth with the owner of QTP and he asked me that if he were to make a 3" DP with the y pipe already intergrated into the DP and the electric cutout and sell as a package deal for all DSM's would this product gauge enough interest to sell. I said I think it would. And with a 3" DP/Cutout system that is well made with quality and fitment and performance gain's
to be had like more HP and TQ and increase of spool and response, I think it will be a great product for all DSM guy's, And that is what I look for in a product what about you guy's? So to make a long story short this post is to see just how many of you guy's would be interested in such a package. My car is going to be the guinea pig if that is what you want to call it. The 1g AWD car's are going to be the first to be able to recieve the DP package because that is what I have. If you guy's have any ?'s about this package post here and I will get back to you. I assure you if this package becomes a reality it will be a very high quality piece and will fit like a glove. After thing's get started on the prototype I will try to get pic's up or Barry at QTP will put pic's up on his site. I will update this thread when I have new info. Like I said post here for any ?'s and I will get back to you. Thank's for the space guy's talk to you later.

Ed
 
I would like to know how you gain power or any benifit from this, I'm guessing youll get faster spool up, but not a power gain.
I remember going WOT one time and my testpipe blew off (clamps that hold it was lose) I felt an Instant power lose.
someone enlighten me
 
fourg63 97gst: Ok the benefit's ofcoarse will be quicker spool up and response and you will pick up power on any forced induction car. Turbo's especially less back pressure the better. The QTP cutout was sent to extreme motorsports and put on one of their modded talon's and it picked up 7hp and 7tq so there was and increase across the board when it was engaged. The GN guy's have been using exhaust cutout's for year's with great success. And the QTP system is being used on the Gran Prix GTP car's with great result's also. Any more ?'s feel free to ask. Later

Ed
 
This message is for the VENDOR'S ONLY.


Barry at QTP wanted to know if any vendor that would be interested in selling this product, if so he will sell it wholesale to the vendor. Any ?'s from the vendor's feel free to ask. Thank you.

Ed
 
I understand that you should gain power but just from personal experience when my catback got ruined and I had to run the GST with an open exhaust after the downpipe I felt a drastic loss in power.

Not to mention its LOUD.. I mean like you can hear the car coming from 8-10 blocks away loud..
 
larryd: Well all I know is that a few people that I know that actually dropped their catback's at the track to see what would happen, actually went faster in their qtr mile time. And Barry at QTP sent one of his cutout systems to extreme motorsports and they put it on one of their modded talons and picked up 7hp and 7tq across the board. I know that the GN guy's have been using these thing's for year's with great success and IMHO I think their are performance gain's to be had from this setup on any forced induction car more benefitial on turbo cars because less backpressure is better. Another thing, I had an automatic 91 gsx and my whole catback feel off one day and I immediatly felt an increase in power, torque, spool, response, of the car. I know that it is load as hell but that is the beauty of this system you only open it when you need it to be open and when you do open it it is not a hassel to do so. Well any ?'s feel free to ask. Later

Ed
 
Originally posted by awd11secgsx
larryd: Well all I know is that a few people that I know that actually dropped their catback's at the track to see what would happen, actually went faster in their qtr mile time. And Barry at QTP sent one of his cutout systems to extreme motorsports and they put it on one of their modded talons and picked up 7hp and 7tq across the board. I know that the GN guy's have been using these thing's for year's with great success and IMHO I think their are performance gain's to be had from this setup on any forced induction car more benefitial on turbo cars because less backpressure is better. Another thing, I had an automatic 91 gsx and my whole catback feel off one day and I immediatly felt an increase in power, torque, spool, response, of the car. I know that it is load as hell but that is the beauty of this system you only open it when you need it to be open and when you do open it it is not a hassel to do so. Well any ?'s feel free to ask. Later

Ed
i already have a 3" cutout welded in my downpipe but it uses wingnuts to take it off. If i buy just the valve thing will it work?

i got a 3" one off racenet.net for 30 bux.


http://www.racenet.net/missing.php?url=http://www.racenet.net/exh/quicktubes.php
 
Patryk: Yes all you have to do is give Barry a call at QTP and buy the valve and your all set. Not more taking those dam wing nut's on and off. Go to the site for his # www.quicktimeperformance.com.


EROK81:




I want to know why everyones cat backs are falling off?

All I can say is #### happens sometimes!!!

Yes the cutouts are interesting and this new package from QTP made specific for DSM's should be a big hit. Any ?'s feel free to ask. Later

Ed
 
Hi. I was wondering if any of you knew anything about the electronic cut-out systems. basicly, at the touch of a button, you can electronicly change from your stock exhaust system to a dump from the downpipe. It seems like it would be a good idea but i don't hear much about it. any info is appreciated. thanks!
 
they have them. do a search for "y-pipe" or something like that. i can't remember what its called exactly. its been discussed before but i was never really interested. there is also a company that makes ones that can fit our cars but of course i also don't remember. LOL. do a search on the net.

P8ntBalla: Its a good idea because it lets the exhaust gasses out earlier. The gasses have less distance to travel makes for less exhaust restriction. Which of course translates into better flow. With a turbocharged car its generally a good idea to have as little restriction as possible.
 
It pretty much lets you run an open downpipe without taking the cat-back off. They sell them here http://www.quicktimeperformance.com/qtec.htm but at $135, pretty steep. Why don't you just stop being lazy and get a manual cut-out j/k LOL (30 bux), if getting under your car and undoing a couple wing nuts is too much work then get your electric one. Not a bad idea when you go to a drap strip, but if you drive around town with it open, people will look at you because your car WILL sound like ass.
 
my idea was when i'm driving around town I wouldn't attract any attention, but if I wanted to go fast I would just have to hit a button for the exhaust and and a button on an electronic boost controller to gain performance quick... tell me if i'm an idiot.
 
I have one on my Camaro, it is extremly fun (loud), it is great to see the looks on other peoples faces. Though I don't know how much a turbo DSM would gain from it?
 
Yeah I've heard one on a v8, i love the sound of the rumble but i just think it would sound like crap on a 4 cyclinder. Just get a nice exhaust system with a test pipe, you'll always have great flow and a nice sound and wont be really annoying. But it's your car, if you wanna spend $135 to have "that button" by all means go for it. I really don't think there would be a noticeable difference in perfomance between a cut-out and a cat-back (if you already have exhaust).
 
i see.. well, I don't have exhaust yet.. so I was thinking this may be a good choice. I would be forced to run low boost when I don't want to go fast.. which may be a good thing as far as me being stupid.. Also- my friend has a turbo lebaron ('85) with just a side exit pipe, no muffler... it doesnt sound very clean, but its not all that bad... I'm wondering if you could even compare though... hmm.

Has anyone ever ran there car with an open downpipe? how did it sound?? thanks!
 
the point is to have control... its pretty simple- i explained it above. The question is 1. what it would sound like and 2. Is it a good idea
 
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