Ironman Cobra Build Thread - Page 12

RestoCreations · #1 (**permalink**) 11-15-2011, 11:36 PM

Now that i have 200 miles on the car, it is time to put on the finishing touches. I started last weekend with the tires and I have been working on the sidepipes this week as time allows. I managed to make it through polishing the 4 passenger side header tubes yesterday and this evening i spent 6 hours making the aluminum heat shields to go around the sidepipes.

First, here are some pictures of the hood scoop and hood after the stripes were repainted. The scoop pulled away from the hood this past spring when i was working on the car. Apparently the rivets were not long enough and did not fasten the scoop properly to the hood. Plus, they were painted together and paint pooled around the corners of the scoop, so when it pulled away it took a lot of paint from the hood with it. Since the underside just had an uneven overspray of blue, i decided to strip it and make it bare brushed aluminum.

Stripes repainted on the hood. I decided to buff the hood myself to save a few bucks.

Goodyear Billboard Tire lettering-The letters on the right rear tire were the most worn. I thought about making a template, but instead i just decided to tape the tires, carefully cut around the letters, and respray them.

RestoCreations · #2 (**permalink**) 11-15-2011, 11:44 PM

Sidepipe polishing and Heat Shields

Making a template for the heat shield

And installed. I am sure some will not care for it, but they are necessary. There is no way to protect the paint around the cutouts and the paint chipped a little when i enlarged them to fit the header tubes. Cinema Vehicles or Kirkham only cut them just enough to fit the non functional pipes through. It took me about 3-1/2 hours to make each heat shield.

RestoCreations · #3 (**permalink**) 11-22-2011, 09:13 AM

That piece sitting next to the muffler tube is all that is inside. Just a screen that inserts into the material inside of the muffler. I am not sure if it is fiberglass packing inside of the muffler or something else.

FUNFER2 · #4 (**permalink**) 11-22-2011, 09:20 AM

The photo of what ever's inside the muffler looks restrictive. One of my customers muffler had this inside. Wow, talk about restrictive.

Avmaviator · #5 (**permalink**) 11-22-2011, 12:15 PM

I believe the packing is stainless steel wool if I remember correctly from my Kirkham visit. It is supposed to last longer and not break down like fiber glass does.

The pipes look really good Chris. Looks like a lot of work but totally worth it when you see the result.

Stephan427SC · #6 (**permalink**) 11-22-2011, 01:06 PM

Very nice built ! Congrats ! Where did you get this sidepipe- kit from ? Looks perfect !

FUNFER2 · #7 (**permalink**) 11-22-2011, 01:50 PM

Do you mean me ?
If so, we make them. The primaries extra long for a custom fit. All you need is your 4-hole flange to match the one on your headers. Like Chris mentioned, stainless is expensive, but they last much longer, look and sound great. If you want more info, PM or email me as I don't want to work over his thread.
Gilmore Side Pipe Kit pictures by 427HISS - Photobucket

Again Chris- beautiful cobra build and great workmanship !

RestoCreations · #8 (**permalink**) 11-22-2011, 01:51 PM

Its just a straight through pipe with packing material around it. It really isnt restrictive at all. I guess my fuzzy pictures is showing the wrong thing. Look at the picture of the pipe on the ground. At the front of the pipe is the collector that i removed and next to the sidepipe is the mesh tube that inserts into the stainless pipe. It simply slides down inside of the stainless steel pipe and has sound dampening material around it. The mesh pipe appeared to be around 2-1/4 to 2-1/2 in diameter and is straight through. The design gives the exhaust a nice low rumble, but it still loud and does get very loud under full acceleration, but it is not like some of the glasspacks that are in my opinion obnoxious and will make you want to rip your ears off. Also, the mesh does not produce a flappy sound at idle while cruising, it keeps that nice low pitch. However, it does flap when backpressure is present, but it isnt terrible.

FUNFER2 · #9 (**permalink**) 11-22-2011, 01:54 PM

It is pretty fuzzy. lol
Doesn't the stainless sound great over mild steel !

What did you do for hangers ?
My first ones were just 1/4" thick straight stock welded to the outer shell of the muffler. It ripped out after 20 miles, so we changed to out present hanger that conforms to the muffler and about 3" long. No issues now.

RestoCreations · #10 (**permalink**) 11-22-2011, 02:12 PM

You I didnt even think about the stainless contributing to the sound, but now that you mention it, i am sure it makes a difference. I certainly know there is a big difference in how an internal fuel pump sounds inside of an aluminum gas tank vs a stainless tank.

dolphinboy400 · #11 (**permalink**) 12-11-2011, 12:54 AM

took my exhausts apart today..... - Page 2
this is the stuff i used, ( acustafill ). I dont know how available it is over there but i was really impressed with the difference it made. The first thread is the one about my exhausts specifically if you go to the 4 page you can see how easy it is to install.
Sidepipe / Silencer Packing Material - Acoustafil

FUNFER2 · #12 (**permalink**) 12-11-2011, 06:52 PM

Quote:

Originally Posted by dolphinboy400

took my exhausts apart today..... - Page 2
this is the stuff i used, ( acustafill ). I dont know how available it is over there but i was really impressed with the difference it made. The first thread is the one about my exhausts specifically if you go to the 4 page you can see how easy it is to install.
Sidepipe / Silencer Packing Material - Acoustafil

We have to join that site to see the pics. Can you just post some here on CC ?

dolphinboy400 · #13 (**permalink**) 12-12-2011, 12:12 AM

let me try this , ive had to join this site to post so may not let me upload yet.
acustafill site : Acoustafil Exhaust Silencer Acoustic Insulation, Introduction

the pics on the main site show a very small amount but this is exagerated, in my pics you will hopefully see it was rolled up not tight to allow for expansion . my sidepipes are 5" with 2.5" baffles .

dolphinboy400 · #14 (**permalink**) 12-12-2011, 01:21 PM

Quote:

Originally Posted by FUNFER2

We have to join that site to see the pics. Can you just post some here on CC ?

ive posted but waiting for aproval as i'm a newbie

good it made it , pic 3 shows how much i was over . I ordered 3 square metres, 2 would have done it.

RestoCreations · #15 (**permalink**) 12-14-2011, 07:13 AM

Why not just start a new thread on exhaust?

Your pieces look just like the kirkhams, except you have a removable tip as well. Where did you buy these components?

Thanks

dolphinboy400 · #16 (**permalink**) 12-26-2011, 02:38 AM

Quote:

Originally Posted by RestoCreations

Why not just start a new thread on exhaust?

Your pieces look just like the kirkhams, except you have a removable tip as well. Where did you buy these components?

Thanks

i got the exhausts made at a tube forming company close to me, the quality reflects the price i paid ( under half the going rate ) so i dont think they would meet the build quality you have given to your kirkham. I just told them what components i wanted them to have and what i wanted to be able to do with them. I didnt want to clutter you excelent thread with my ramblings just wanted to highlight the acoustafil product as an alternative to rock-wool and wire-wool

thanks

Danny