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Author Topic: Tune+nozzles+surging turbo=BOOM!  (Read 11099 times)

Reply #30September 08, 2013, 09:56:45 pm

libbydiesel

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Re: Tune+nozzles+surging turbo=BOOM!
« Reply #30 on: September 08, 2013, 09:56:45 pm »
I have found that if the vanes get sticky a drive up a couple decent highway grades can cure it.
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Reply #31October 23, 2013, 08:04:06 pm

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Re: Tune+nozzles+surging turbo=BOOM!
« Reply #31 on: October 23, 2013, 08:04:06 pm »
Sadly I have had the time to compare the vnt 17 turbine and shaft to the vnt 15 turbine.
The vnt 17 turbine is on the left.  It's not the best picture but it's easy to see the size difference.  Also the shafts are very similar in design.  The vnt 17 shaft is a little bit longer on the compressor end since the compressor is also bigger.

Toyota truck 4x4 with Mtdi, M-vnt gt1749va, 11mm pump, fmic, smog .216 nozzles.  Sold!
Working on 1993 4runner mtdi, gtb1756vk, 11mm pump, smog .216 nozzles, custom 1" thick adaptor plate, pd150 intake manifold.

Reply #32October 27, 2013, 01:42:42 pm

R.O.R-2.0

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Re: Tune+nozzles+surging turbo=BOOM!
« Reply #32 on: October 27, 2013, 01:42:42 pm »
Did it give any signs of letting go or did it just go boom
A few days before I noticed a slight, faint whine at higher boost levels.  It never got worse and actually went away a bit.  And then it just went bang on a second gear pull.  Did you notice that the nut is still on the shaft? ;)

Mine used to whine like a roots charger, then one day, it did the EXACT same thing...

no joke, SAME THING.. thought someone posted up my old pics for a second..

i actually abused mine for a LONG TIME before it finally went boom..

mine went boom 120 miles from home tho!!

my compressor wheel stayed slightly more intact tho, even after driving it 100+ miles without an intake hooked up to it

bearings and all 3 housings were wasted after that, and i darn near ran my engine out of oil as well..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

 

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