Help me select a T3 turbo with an internal wastegate (400hp in mind - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 05-13-2011, 06:21 PM   #41
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when my blades were touching it made that noise and wouldnt boost.

"brand new"
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Old 05-14-2011, 09:16 PM   #42
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gotpsi? your sig has a mispelled word.
Fixed Thanks. I don't know how that happened.
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Old 05-14-2011, 10:40 PM   #43
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Put the new 18psi wastegate on and dropped my test pipe and rb exhaust. Took it for a cruise late last night. Not only did the car spool faster and not have boost fall off in the upper rpms. It also woke up my neighbor... Whoops!

Yea running the fm 2.5 downpipe I do not recommend it, although the turbo spool sounded incredible. The actual exhaust note was horrible. Back to the car, pretty sure 3 inch will solve my boost problem.

Planning on picking up a magnaflow 3 in/out straight thru stainless steal muffler and having the 3 inch welded from basically the fm downpipe back.
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Old 05-20-2011, 04:16 PM   #44
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Got a phone call from the turbo shop this morning, They said there were signs of "hot shut off" thats all they found wrong with the chra. I let the engine idle for a minute before I turn it off everytime.

How long does everyone else let there car idle at before they shut it down?

I thought a minute of cool down run time was the standard.
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Old 05-21-2011, 03:48 AM   #45
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Got a phone call from the turbo shop this morning, They said there were signs of "hot shut off" thats all they found wrong with the chra. I let the engine idle for a minute before I turn it off everytime.

How long does everyone else let there car idle at before they shut it down?

I thought a minute of cool down run time was the standard.
It's pretty accepted here I think that driving it sanely for the last few minutes of driving is enough. Doing that and letting it idle for a minute should be more than enough I would think.
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Old 05-21-2011, 04:26 PM   #46
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It's pretty accepted here I think that driving it sanely for the last few minutes of driving is enough. Doing that and letting it idle for a minute should be more than enough I would think.
That's all I ever did with my Volvo 740 turbo, 411,00km later it was in perfect condition, ran like a top, never did anything to it but change the oil and and tming belt.
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Old 05-21-2011, 08:03 PM   #47
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unless you're pulling into a hot pit lane when you exit a road course after a 20-30min session, no "cool" down is necessary. turbo timers are a complete ripoff unless you're road racing. even then, no reason to pull the key out, just let it run. and thats only if you didn't do a cool down lap for some reason. never did a cool down on a street car turbo no matter how hard it was run on the street, no problems since 1997 on 5 diff. turbo cars. you just don't build up enough heat on the street. only time i've seen a turbo too hot on the street was when someone had a totally jacked tune, needless to say, his car only lasted a few weeks.
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Old 05-27-2011, 05:11 PM   #48
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Put the new turbo on last night, car now boosts really slow. I think it may be time to search for a brand new turbo or possible new set up all together.
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