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post #1 of 10 Old 11-21-2015, 05:40 PM Thread Starter
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Wastegate Temperature

Will a wastegate take being held open to bypass exhaust for an extended period??

I'd like to force the WG open with air so the exhaust bypasses the turbo on extended cruising, but when I just tried that the WG got hot pretty fast.



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post #2 of 10 Old 11-21-2015, 06:42 PM
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not sure what benefit your trying to get from doing this?


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post #3 of 10 Old 11-21-2015, 06:49 PM
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If you're shooting for fuel economy go to the blow off valve. Limiting boost is easier than trying to stop it from spooling. And a lot quieter
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post #4 of 10 Old 11-21-2015, 11:44 PM Thread Starter
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not sure what benefit your trying to get from doing this?
Trying to keep hot exhaust from running through the turbo when in street cruise mode. It cuts way back on turbo heat, but the constant stream of exhaust gets the WG hot as heck.

I'm just not sure how hot a WG can get before failing.


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post #5 of 10 Old 11-21-2015, 11:55 PM
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Higher will benefit from higher iats.
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post #6 of 10 Old 11-22-2015, 04:21 AM
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Trying to keep hot exhaust from running through the turbo when in street cruise mode. It cuts way back on turbo heat, but the constant stream of exhaust gets the WG hot as heck.

I'm just not sure how hot a WG can get before failing.[/QUOTE]

Yeah I doubt any companies design those for continuous operation

Are you worried about heat soak or intake temperatures?
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post #7 of 10 Old 11-22-2015, 09:37 AM
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I would think that a TIAL would be Ok just cruising around. They are made to operate red hot under racing conditions and under cruise conditions it may be ok. I've seen vids where some cheap ones will stick open while heated.

ks


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post #8 of 10 Old 11-22-2015, 12:43 PM
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[QUOTE=TomR;16487434]Trying to keep hot exhaust from running through the turbo when in street cruise mode. It cuts way back on turbo heat, but the constant stream of exhaust gets the WG hot as heck.

I'm just not sure how hot a WG can get before failing.[/QUOTE


turbos like heat just invest in a good turbo blanket ...i have thermal zero blanket and keeps the underhood temp down pretty good

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post #9 of 10 Old 11-23-2015, 12:06 AM Thread Starter
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Originally Posted by B0jangles View Post
Trying to keep hot exhaust from running through the turbo when in street cruise mode. It cuts way back on turbo heat, but the constant stream of exhaust gets the WG hot as heck.

Quote:
I'm just not sure how hot a WG can get before failing.
Yeah I doubt any companies design those for continuous operation

Are you worried about heat soak or intake temperatures?
I was worried about under hood temperature and oil temperature because I wanted to run a true street race. We were supposed to drive 20 miles before racing. I wanted to hold the waste gate open in the cruise so the turbo stayed cool.

It is OK without doing anything.


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post #10 of 10 Old 11-23-2015, 12:26 PM
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You could always put a spacer at the rear of the hood if you want a temporary fix. It makes the whole hood a cheater cowl and pushes new air in. Should help your temperatures, especially if that cruise is at freeway speed

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