my DIY turbo heat shield
the turbo is boxed in (are there any drawbacks?)
i used very light gauge .025” aluminum…..doubled up in some areas for stiffness. http://i251.photobucket.com/albums/g...8/miata001.jpg |
nice work:bigtu:
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nice, make me one and i wont ban you :bigtu:
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make me one too lol, the greddy one i have is a piece of shit
i had to get it re welded |
more pics!!!!!!
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Originally Posted by urgaynknowit
(Post 212828)
make me one too lol, the greddy one i have is a piece of shit
i had to get it re welded |
nice work man. make them and sell them!
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Originally Posted by emmi
(Post 212875)
more pics!!!!!!
http://i251.photobucket.com/albums/g...8/miata002.jpg |
Originally Posted by levnubhin
(Post 212911)
nice work man. make them and sell them!
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I like it. It's very similar to mine that's been on for a while. Does a good job of shielding the heat. I used some sheet metal from my old hvac unit.
http://i158.photobucket.com/albums/t...t/engine01.jpg |
Originally Posted by m2cupcar
(Post 212930)
I used some sheet metal from my old hvac unit.
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nice, im going to build something like that
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Yes, definitely nice work. The main thing to shield is radiant heat to the brake cylinder and lines. I've tracked my turbo miata (at 15psi, T28) occasionally and never had heat problems but that was always a concern in the back of my head. Your design looks like fits the purpose well. Only worry would be the mounting. Is it also mounted below to the engine somewhere or only cantilevered out from the two valve cover bolts? Will it shake and move much from the mounting or do you have other mounting points to make it solid?
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Originally Posted by budget racer
(Post 211872)
the turbo is boxed in (are there any drawbacks?)
looks good IMO |
Very nice. I need to fabricate something similar soon.
You might want to consider making them out of steel since steel is a worse (much worse) heat conductor than aluminum. Like at least 3 times worse. That will provide additional shielding. Stainless steel would be nice for rust prevention though it will cost more of course. Also, regardless of the material, if you leave the inside shiny (like you have done), instead of painting it black for example, it will reflect more radiant heat. |
Het budget racer, any pics of the back of the shield?? Like where the heater hoses are looking forward??
I ask because I just started making mine today (using diamond plate) and was wondering how to go about boxing it in...Yours looks VERY clean man!! Good job! Also curious about any other mounting points as someone else asked.. I'm gonna be using 3 of the valve cover bolts, but was thinking about something else on the bottom... |
Nice, neat work.
I think it is worth considering that the shield ought to be mounted on the chassis rather than the motor. Reason is vibs. As hard as it is to imagine, the primary (up and down) imbalance of the 1.8 four cylinder turning 6000 revs is about 20 G's. Of course it doesn't go very far, as 1/2 rev later, it wants to go the other direction. Regardless, it is a source of vibration that needs dealing with. |
Corky how much movement from the motor have you seen, say, measured from a point on the valve cover to a point on the shock tower? Of course this will vary with torque output, motor mount condition, etc. Just wondering what is typical. I've considered removing the hood and measuring it myself.
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Do it man, open the hood and turn the throttle body.
The 40% stiffer MazComp motor mounts should eliminate a decen't amount of the motor "torquing" motion. |
I'm thinking that it would move more under load at peak torque compared to blipping the throttle? I was thinking I would remove the hood, rig up a measure with a pointer, and videotape it while driving up a hill. Crude, but cheap and effective :)
Not thread jacking here, just thinking about the what-ifs of a chassis mounted shield per Corky's suggestion. |
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