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Tri-Y Cut Outs "pre-production" sale.

1245 Views 53 Replies 0 Participants Last post by  stumpy
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As posted by Dan in the Exhaust section here.

We have not moved forward with them. We spent time and money on the Quad-1 cut-outs and I sold two sets. I'm not really ready to spend more time and money on fixtures again. If one of you guys want to organize a "Sale", I hate the term "GP or Group Purchase", then feel free. If you can get 5 people to pre-pay then I'll get it done. Expect to pay $165.00 retail per set with gaskets, nuts, bolts and block-off plates. Get the 5 people and I'll knock $15.00 off.
Anyone in?

Mav
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I got one of the 2 sets for Quad-1s. AWESOME!!!!

Terry
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Terry,
Could you post a picture of yours, showing the cutouts' orientation when they're installed?
Then maybe Dan could describe the differences required for the Tri-Y cutouts.

TIA,
Pat
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I'm in!
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Pat,
I'd be happy to, but...

1) I don't know how to post pictures. I've searched the FAQ, but I still can't figure it out. I don't have a good place to host photos or files, they are just on my hard drive.
2) I don't have any photos yet. I have some electric exhaust cutouts that I have not finished installing yet and I am waiting for it all to be together before I take some photos.

I've had a hold-up on the e-cutout install. I had to do some fabrication work to the e-cutout flange because Dan sent these to me with the flange bolts welded to the cutout flange. That's great if you are just going to use the covers that come with it. But, the bolt circle of the welded bolts was not exactly the 4" diameter nominal. All bolts had been pulled towards the center of the clear hole through the flange, and the actual bolt circle was offset to the inside almost 0.060". I had to machine the flanges on the e-cutouts to get the bolts to go through.

Secondly, I want to add turn-downs at the e-cutout to keep the hot exhaust off of the body, frame, and floorboard. The cutouts add another 3/8 of flange, plus a gasket, of thickness and the 1" welded bolts aren't long enough to reach through the flange of the cutouts. I am having special shoulder nuts made at a machine shop to accomodate this problem.

It's not Dan's fault. I'm sure he thought he was doing me a favor by welding the bolts to the flange so that I didn't need to worry about losing them when removing the caps. I didn't specify to leave the bolts unwelded - my fault. If they were loose bolts, I could just use longer ones and the problem wouldn't exist. He put up with so much grief from me when these were being fabricated, that I didn't even mention it to him. It wasn't his fault.

If the parts are done, I may have everything hooked up this weekend. As soon as it is done, I'll take some photos. But, I still need to figure out how to post them.

Terry
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as in the other post.....count me in for the tri-y cutouts as well.
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Ok, we have 3 so far...
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Is anyone concerned about the exhaust gases frying something when running with cutouts open?
Dan, can you put me at ease about this?
That's the only concern keeping me from saying, "I'm in."

Pat
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Bowtienut - Yes I am. See my post above about adding turn downs.

Terry
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Man! Sorry Terry. You know what, I sat and stared at thos for about 10 minutes trying to decide if I should weld the bolts on or not. With some other guys mentioning doing this to allow the use of a wing nut, I figured I would. I was definitely trying to help. I wasn't worried about the bolts pulling off center because they were welded with the block-off plates on. So they would always line up on the bolts. At least one orientation anyways.
I never even thought about the thickness of the mounting flange on the electric dumps. 2" bolts would have prevented the problem. I hope you are able to get it resolved.

Maybe the machine shop can machine out an area for a nut on the back side of the flange to allow the nut to counter sink to the 1" bolt. Just a thought.

Also, send me the piuctures when you ge them. I didn't have a chance to take pictures before shipping that day. I would like to up-load them to my site and then post the pictures.

Let me know.

As far as exhaust gases causing any harm, I wouldn't worry about it but that's me. You may want to consider a type of tip. If we move forward with this then I'll see what we can offer. maybe a nice polished oval tip hanging out under each door at the track would look pretty good. Hmmm?
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Dan, if the Tri-Y cut outs are made, do you think that these could be put on them? Just the electric cut out part of course...

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Yeah, provisions for E-cuts would be cool. Mostly concerned about space uner the car for them. I don't reall want to go hammering on the floorboard to create room if I don't have to.

Also, with the concern about the heat coming out and burning anything, I wouldn't worry about it. Cutouts have been used for many years on many cars without problems. There are quite a few Impalas that have them, and I haven't heard of any problems with them in my 2+ years of searching.

Mav
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Mav, I don't think there would really be a problem with space for these e-cutouts. A few people on the forum are using them with no problems.

Here's a pic from under Mike Bambic's car showing these e-cutouts:
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Dan - No problem, man. There is no way you could have known. 90% of your customers would have appreciated the welded bolts and you did the same thing I would have done with the information you had. It's caused a few extra steps for me, but heck, that's what happens when you start modding.
Fortunately, I have a 30-man CNC machine shop that reports to me and they are able to counter sink my turn downs and fab me some special long-shouldered nuts that reach down to the 1" bolt. I should have them on next week. I'll send you some pics of both before and after e-cutouts when I get the car back in the air for the install - hopefully next weekend. Your cutouts are top-notch and I'm glad I got a set. It was worth the wait.


John - Those DMH Performance cutouts that you have pictured are what I will be using. Yes, they will fit on the car, at least with Dan's Quad-1 cutouts. It's a little tight, but I've verified that they will fit without interference. Of course, I don't know about the Tri-Y's, but I expect it would be a similar fit.

Pat- The install had to be postponed until next weekend, so it will be another week before I can get thephotos out that you requested.

Terry
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We still only have three definates. Still need two more. Come on Tri-Y owners, some of you guys have to want some cut outs!
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Originally posted by LeadSSled:
John- Those DMH Performance cutouts that you have pictured are what I will be using. Yes, they will fit on the car, at least with Dan's Quad-1 cutouts. It's a little tight, but I've verified that they will fit without interference. Of course, I don't know about the Tri-Y's, but I expect it would be a similar fit.

Terry
Thanks for letting me know that there will be clearance.

Dan, I'd just like to make sure with you that the Tri-Y cut outs would be made in a way where the electronic cut outs from DMH could be used on them.?
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John,
BTW - My car picks up a full tenth of a second and almost 1 mph in the 1/8th mile with the cutouts open versus through the exhaust. (8.71 @ 76 mph). I don't have good open/closed cutout numbers on the 1/4 mile, but a tenth in the 1/8th is usually 2 tenths in the 1/4. Best quarter with cutouts open was 13.91 @ 97 mph. The 1/8th split on that run was an 8.82 @76 mph.

Terry
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Originally posted by LeadSSled:
John,
BTW - My car picks up a full tenth of a second and almost 1 mph in the 1/8th mile with the cutouts open versus through the exhaust. (8.71 @ 76 mph). I don't have good open/closed cutout numbers on the 1/4 mile, but a tenth in the 1/8th is usually 2 tenths in the 1/4. Best quarter with cutouts open was 13.91 @ 97 mph. The 1/8th split on that run was an 8.82 @76 mph.

Terry
It's good to know that the cut outs take off a little bit of time. Thanks!
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Originally posted by BowtieNut1:
Is anyone concerned about the exhaust gases frying something when running with cutouts open?
Dan, can you put me at ease about this?
That's the only concern keeping me from saying, "I'm in."

Pat
So, do you want in?
G
come on guys!! i've wanted these bad boys for a while now. just think how cool it will be to cruise around with open headers or just hearing that lumpy cam through them. :D :D
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