Turbo issue, boosts in 2 stages!

enthuzed · Post by **enthuzed** » Tue May 24, 2011 12:40 am

Standard car, standard TC06. I've been watching the boost gauge as it spools, it spools okay around to zero and doesn't freely give any more until I really get stuck into it to. Then the boost climbs from 0.1 bar to about 0.5 & by that stage we're really travelling. I haven't checked it's full capability at the top of the rev/boost range as I've only just tuned & timed it. The timing is now set to 7 degrees @ idle as it was pinging decently at 11 degrees. The problem was still there before but not as noticable.

kushman · Post by **kushman** » Tue May 24, 2011 12:10 pm

first off does it rev freely in neutral?can u hear any rubing scraping noises from ya turbo? (check oil feed to turbo)can u hear any vacum leaks, checked all intercooler pipes , etc ...
had the same problem on one of mine with a tc06 , the turbos r getting on (lets be honest) and they old 80s bearings get worn which allows the shaft to move slightly side to side and up and down (yes some times with not much sign of smoke) and this causes more friction then slow spool up lag etc , eventialy my blades (exhuast wheel ) started to rub against the housing and it wouldnt even turn unless i went past half throtle( HEY I HAD TO GET IT HOME)

hope it aint ya turbo buddy! but put a td05 16g on it! straight bolt with 3 minor mods , will turn ya staz into a new car :)

enthuzed · Post by **enthuzed** » Sat May 28, 2011 7:27 am

Haven't had a chance to look at it yet but the standard boost gauge reads exactly zero - all the time. It's still boosting like it has been (which is weird) but now the gauge has packed it in too.
In the 8 cars that I've owned or passed through me I've never seen that happen with the gauge. Any clues? Is it likely to ve related to this spooling problem?

OLD FART · Post by **OLD FART** » Sat May 28, 2011 7:50 am

Have you tried using an aftermarket gauge to see if it still does the same thing ??

thrash · Post by **thrash** » Sat May 28, 2011 1:48 pm

the standard gauge is electric and feeds off the ecu doesn't it? Perhaps theres's something fishy going on with your ecu or the lectrical system?

Either the ecu isn't getting the correct boost signal or it's not doing the right htings with it?

enthuzed · Post by **enthuzed** » Sat May 28, 2011 6:36 pm

I suspect the turbo is shagged. Might be causing all this crap.
Time will tell...

kailo · Post by **kailo** » Sat May 28, 2011 7:10 pm

I know mine didnt move off of 0 when there was broken hose to the map sensor.

enthuzed · Post by **enthuzed** » Sun May 29, 2011 2:21 pm

Because it comes up to zero from the bottom left when you turn the ignition on, electrically it seems okay so I thought that about the hose too. Thanks for the reminder. :)

enthuzed · Post by **enthuzed** » Sun May 29, 2011 4:58 pm

There was a split in the hose so that explains the two stages...but the hose had come off the carby (

LOL) when I changed the starter motor which gives the zero reading. Just for future reference, on a JB when that happens the car runs quite rich & rough, especially at idle. There is some play in the turbo but it's not fouling the housing...yet.

kushman · Post by **kushman** » Wed Jun 01, 2011 10:52 pm

get the td05 16g! u know ya want to!

enthuzed · Post by **enthuzed** » Thu Jun 02, 2011 12:09 am

The big 16g won't go on this car, it's nearing transplant time for another of the fleet.

enthuzed · Post by **enthuzed** » Sun Jun 05, 2011 9:16 pm

Turbo is definitely ratshit. Makes strange noises, like a growl/howl and the boost isn't progressive but worse than that - sometimes it boosts better than others.

Austarion

Turbo issue, boosts in 2 stages!

Turbo issue, boosts in 2 stages!

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