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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 09-03-2008, 11:50 PM   #1
DXO
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How hot does your turbo run? I took my turbo miata out for the day today and noticed it didn't like the heat today. no hard driving maybe 5 mins on the interstate and city driving and to my night class earlier. when i pulled in i popped the hood to take a look and see how everything faired today and noticed the manifold and half the turbo was glowing red
I grabbed a ir thermal gun and checked the temperature and it was around 1200 degrees

I was just wondering if it was normal after a ~25min drive and if there is anything i could do to help it.

all my lines are wrapped with thermal cloth to keep the heat away and i have a heat shield to cover the turbo but have yet to install it.
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Old 09-04-2008, 12:47 AM   #2
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is normal ceramic caoting is the only thing that will cut the underhood temps and be a stable longterm fix.
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Old 09-04-2008, 02:12 AM   #3
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wouldn't excess EGT be timing related?

Where the hell is Gold Hill?
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Old 09-04-2008, 12:02 PM   #4
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I have never seen mine glowing red even after a hard run and immediately looking under the hood.
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Old 09-04-2008, 12:09 PM   #5
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needs more timing and/or better exhaust
EGT on my car can approach 2000F, but I've never seen anything glow, even when on the dyno for the day.

What material is your manifold made from? Mine is cast.
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Old 09-04-2008, 12:11 PM   #6
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I have seen manifolds glow, but only after hard runs and when it is dark outside. Also, the cars I have seen it on were all running 20+ lbs of boost.

You need to check your timing.
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Old 09-19-2008, 10:51 AM   #7
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sorry for the LONG delay in response. I've been to busy to even think about checking back.

My mani is a greddy cast

and exhaust is a brand new system with no cat

Ive checked timing, ill recheck it to see if i am wrong

Gold Hill is north of charlotte about ~25 miles give or take
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