Lets list crappy exhaust cutouts here.

[turbovanman²]

Drag racing Sat night, mine decided to melt the motor and luckily its half open.

QTP 3.5" oval, I just emailed them.

[cordes]

Why not list the good ones? Aaron posted which ones he uses a little while back. I would get one of those if I get one.

[bakes]

did it melt from heat from the exhaust or from the motor bing supply voltage all the time to keep it open????

[turbovanman²]

Why not list the good ones? Aaron posted which ones he uses a little while back. I would get one of those if I get one.

If we list the crappy ones or one's we are using and fail, then people know to stay away. QTP is supposed to be a good one.

did it melt from heat from the exhaust or from the motor bing supply voltage all the time to keep it open????

I think the motor got hot from the exhaust flow thru the cut out, Once you open it, there is no more voltage, think power window motor.

[ATaylorRacing]

I used one of these MANY years ago....it is cast iron and the flap blew out on it. In a pinch I used regular coke can cut in half and water clamped it over the section that was stuck open. The coke cans kept melting so the only way to make them last was to stabbing a bunch of holes in the bottom of the can so the heat would not go nuclear. I had gotten mine from JCW back then.
http://www.summitracing.com/parts/MRG-5424/

[turbovanman²]

Old school for sure,

Well so far, nothing back, I'll call them tomorrow.

[Rrider]

Dang I got one of those cast iron ones hoping the stone age tech would be fail safe..

[RoadWarrior222]

Slather it with muffler cement, when that burns off, do it again.

[bakes]

ARE you related to RED GREEN????

[RoadWarrior222]

Does it sound less ghetto if I phrase it: "Use an ablative ceramic coating like the tiles used for re-rentry on the space shuttle, perform a coating procedure with muffler cement."

[wallace]

No one uses a manual cutout?

[RoadWarrior222]

I think they want to rig it to automatic operation...

Use a manual and a beefy actuator, like a hydraulic cylinder spliced into a power steering line with an electric actuated valve, should be quick actuating.

[shadow88]

It's rarely a matter of time to open and close. Usually the e-cut outs leak a little when closed or flat out die.

I've never tried the doug's header design, but it think it has a better chance of outlasting the current designs, which all seem to suck in their own special way.

[22shelby]

"remember if the women dont find you handsome, they should atleast find you handy" .... ive always used the manual cutouts... SS with a 3 bolt flange and 3 ss wing nuts... NEVER had a problem... yeah got to go under the car to open it, but i wont have to worry about shtuff blowing out on me :P

[turbovanman²]

It's rarely a matter of time to open and close. Usually the e-cut outs leak a little when closed or flat out die.

I've never tried the doug's header design, but it think it has a better chance of outlasting the current designs, which all seem to suck in their own special way.

Its a good design but stupid expensive. Hopefully with time, the price will drop.

"remember if the women dont find you handsome, they should atleast find you handy" .... ive always used the manual cutouts... SS with a 3 bolt flange and 3 ss wing nuts... NEVER had a problem... yeah got to go under the car to open it, but i wont have to worry about shtuff blowing out on me :P

Yeah, I am lazy,

[shadow88]

Its a good design but stupid expensive. Hopefully with time, the price will drop.

You get what you pay for and you pay for what you get.

[turbovanman²]

You get what you pay for and you pay for what you get.

Well its unproven so your really paying to do their R@D until its been out for a few years,

[wallace]

"remember if the women dont find you handsome, they should atleast find you handy" .... ive always used the manual cutouts... SS with a 3 bolt flange and 3 ss wing nuts... NEVER had a problem... yeah got to go under the car to open it, but i wont have to worry about shtuff blowing out on me :P

Never heard that saying before...but I like it. Hard to beat the manual ones for reliability.....how many folks take their car to the track and never jack it up?

[J&H Ryan]

I have a QTP, good thing I decided to do full 3" with an interchangable muffler/test pipe.

[22shelby]

Never heard that saying before...but I like it.

its a qutoe from the red Green show, which was mentioned earlier.... if you want a laugh...youtube red green show

---------- Post added at 06:27 PM ---------- Previous post was at 06:18 PM ----------

here sorry to thread Jack but wallace needs to see this one!!