1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

I put in my respeed heat shield this evening

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Old Aug 6, 2008 | 08:13 PM
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I put in my respeed heat shield this evening

Here's the package:





Here's where it goes:



Here's how you put it in:





Those washers need to be on the other side of the aluminum, see the last picture.

Here's what it looks like installed:









It's solid where it is but I can see from the photos I might be able to skooch it back a bit.

Thanks Billy, I'll take that other one.

Ray
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Old Aug 6, 2008 | 08:19 PM
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I did something almost the same with an airbake cookie sheet....wife wasn't too impressed though, I thought she would never look for it.
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Old Aug 6, 2008 | 08:28 PM
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Looks real nice, might have to get one of those....
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Old Aug 6, 2008 | 09:07 PM
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Looks like those measurements I took for Billy worked out just fine! I tried the first design on my 83 GS and it wasn't fitting. I emailed Billy back and told him what was going on. Turns out the later model manifolds have that dumb hump in the bottom that sticks down by the header flange. We both decided that the offset would be the best solution. I think it looks really nice. Mine should be here tomorrow I hope. I can't wait to get it on.

Nice work Billy! Another successful product in your lineup! Keep up the great work!

Jamie
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Old Aug 6, 2008 | 09:14 PM
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Looks nice! I have a used RB one that came with my intake setup, but if I didnt, I would for sure buy that. Depending on how the RB one works, I might. I like the heatshield material on this one. I might try and add something like that to mine. Nice work!

~T.J.
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Old Aug 6, 2008 | 09:19 PM
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Looks like a well made piece Ray. So what's Billy selling these for?
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Old Aug 6, 2008 | 09:38 PM
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That looks super nice! Geez Ray, your car is having a make over today or something.
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Old Aug 6, 2008 | 09:56 PM
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Looks good but what else whould you expect from billy. Ray you notice any differance?
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Old Aug 6, 2008 | 11:26 PM
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Does it really work?
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Old Aug 6, 2008 | 11:52 PM
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Yeah looks good Ray. Yeah some results would be awesome and price. I may have to pick on up to keep the header heat away from my intake and RB air box
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Old Aug 7, 2008 | 12:13 AM
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Yeah, I'd like some results. Seems like a good thing to have, especially for our engines.
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Old Aug 7, 2008 | 05:43 AM
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I'm actually worried about my carburetor icing over when I put the heat shield on. I've already got the coolant runners in the manifold plugged. Hopefully the heat shield will drop my intake temps, but not too far. I'll report back after I get mine installed and have the car running again.

Ray will probably beat me back to it though. Ray, any noticeable drop on your intake temps yet?
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Old Aug 7, 2008 | 06:42 AM
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Thanks guys but thank Billy, he's the one who went out and got this done (with Jamie's help!).

I have no idea if it works or not, I haven't driven it yet. But I'll give it a 110 mile test drive into work and back today.

In fact I'm not sure that without installing some kind of temp probe at the carb there is any way to even tell if it "works". I just got it because it looks cool, Billy made it and it seems like a good idea, with all that heat coming off the header.

But if I notice any differences I'll be sure to let you folks know.

PS Stu, no makeover on the White One, just the usual maintenance, got to keep here happy you know.
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Old Aug 7, 2008 | 07:00 AM
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Jamie, lets see your install



Retail price and availability will be established end of the week guys.

-billy
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Old Aug 7, 2008 | 07:02 AM
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Will do Billy. I haven't put it on yet, but I'm 99% sure that it's at the house waiting on me as I type this. Gotta go home and mow the yard first, and then I'll get to work on it. Pics will DEFINITELY be posted.

Jamie
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Old Aug 7, 2008 | 07:10 PM
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I put 110 miles on the new respeed heat shield today and it didn't fall off. So with some daylight and a few extra minutes I loosened the nuts and bolts and did some adjusting to get a better fit.

And a tight fit it is, that heat shield snakes around all kinds of stuff and fits perfectly. You ain't cutting this thing out of no cookie sheet.

Nice work Billy!

Check it out:












Last edited by ray green; Aug 7, 2008 at 07:22 PM.
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Old Aug 7, 2008 | 08:23 PM
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not bad at all. I want to build one that comes down on the feder side as well to keep the heat away form the idler arm.
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Old Aug 7, 2008 | 11:53 PM
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I can't tell y'all what Ray's getting with his setup, but I had a similar solution on my old Dellorto 4-port 13B. The coolant passages were plugged because of the aftermarket manifold, and that carb would get HOT with a little running. I had an old Racing Beat setup and it made the carb serviceable when I was changing jets and turning screws on the hot engine. I'd imagine that coolant in the mani would warm it up and keep some heat out of it once it's up to temp, but for the typical aftermarket carb I'd expect to see the same high temps without the stock manifold.
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Old Aug 8, 2008 | 08:00 AM
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I plan to get this on top of the huge RE-Speed shopping list that's in the works. Another method that some may say isn't a good idea is header wrap. Not too expensive and I can now touch my exhaust when the car is up to temp. That's an impressive reduction in surface temperature.
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Old Aug 8, 2008 | 08:26 AM
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I have not tried this, put I plan to get one for my SE. I do know that it will result in a substanitially lower temp at the LIM.

With heatshields, it depends on temperatures of the hot and cooler surfaces, the material of the heatshield, and the arrangement of things..but you can expect a reduction of radiant heat transfer by a good 85%-90% with a single layer heat shield. Basically you remove most of the heating of the intake from the header. You still have heat conducted through from the engine, but not much you can do about that (except an insulating gasket). But as mentioned before, you also don't want things too cold with a carb setup or you might get icing.
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Old Aug 8, 2008 | 09:26 AM
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Well, even that depends entirely on the material. Any material has transmissivity (being thermally transparent) absorptivity and reflectivity. Reflectivity is what we're interested in. As an examle, steel, including stainless has a reflectivity of around .6, whereas aluminum is near .95. Nearly all radiant heat is reflected if you have a solid pane, regarless of thickness, ANYWHERE between A and B. Paper-thin aluminum still does a wonderful job if you can keep it from breaking, rotting, blowing off down the road. Seeing as nearly everyone removes the stock heat shield when they go to a header, it makes sense that one would want a replacement.
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Old Aug 8, 2008 | 09:54 AM
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Originally Posted by orion84gsl
Not too expensive and I can now touch my exhaust when the car is up to temp. That's an impressive reduction in surface temperature.


I'm hoping you meant "intake,"... or that you have lots of bandages...

When I had the header on my car (when it's not in "smog test" configuration), I used the stock heat-sheild surround. This looks simpler and less likely to rattle. Nice
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Old Aug 8, 2008 | 10:04 AM
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Nope I meant my header. I can put my hand on it with the heat wrap and its warm, and I wouldn't want to just sit there leaning on it all day, but I don't have to yank my hand away the second I touch it. I can actually firmly put my hand on it and it doesn't burn the skin.
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Old Aug 8, 2008 | 10:07 AM
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Wow, that's pretty amazing - - I had no idea that the header wrap was that efficient. It's gotta keep the engine bay a ton cooler!

Any downside to longevity of exhaust components?
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Old Aug 8, 2008 | 10:10 AM
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if the exhaust is SS you should not have to worry about it rotting away. if its just steel or low grade ss then you have to worry cause it will hold water which = rust.
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