cmiller8006

Seems the vette wanted some turbonetics for dinner. I was told they were new when I bought the kit, but I had wondered about the one since day one, seemed to have more shaft play then it should have. Anyway, started off the car was running good, started smoking a little, then under boost only, thought it was a PCV issue. Then she started smoking even at idle. So it was time, I was going to pull the motor, but got the driver side turbo off and found this. Also lots more shaft play then when I put it in.



Also I was told that they were turbonetics 6265's, cant find that combo anywhere with the TTIX kits, so do any of you know if that's possible. If I have to buy new I will be going with the pte 62's.

And also see this, cyl 1 is clean as the day the motor went together, 3, 5, 7 are the way I would expect, lite carbon layer. What would cause this?

SBCGENII

What color smoke? That cylinder was probably dead for awhile. Turbo tech will have to hook you up on the turbos. Give them a call.
http://www.napaonline.com/Catalog/Ca...006_0361121739

cmiller8006

Like dead how? This motor only has like 1000 miles on it. Smoke was actually white, but smelled of oil. There is oil in the turbine housing. And I was thinking about just buying regular 6266's, going to put the gates coming off the turbine housing. But wasn't sure if the compressor housing is the same or not.

I have not lost any coolant either, but I guess it could be a slow slow leak.

cmiller8006

So lookin at turbos, anyone know if a pte6266 with e cover will fit with the ttix manifolds? I am not worried about the dp's. Thinking if they will physically fit in I am going to get them with a v band discharge. Also pulling the heads this weekend to check the cylinder issue.

BLOWNBLUEZ06@RKT Performance

I wouldn't go pulling the heads to check the cylinder issue before doing your due diligence, such as compression and leakdown tests. If they're good, you need to look at injector, coil, plug, plug wire and wiring and forget about tearing the motor apart.

cmiller8006

Well I did do a compression test prior to pulling the turbo and all cyl were 135-140. Prolly seem a bit low but the starter doesn't turn the motor to fast. I plan on sending the injector out to be checked. I will check coils and other stuff. Thanks for the advice

cmiller8006

So thinking about something. If it was spraying fuel and no spark would the exhaust port have like a sticky feeling or no? Because there is not one, a friend said he thinking if it was spraying fuel it would be gummed up. I am on e85.

robert miller

Looks like the #1 was not getting firing at all for what ever reason.

JDS99

Turbonetics definitely does make a 6265. Actually, it is Precision that utilizes turbonetics 5 bolt turbine side to make the "pte" 6265. If you have questions about your current turbo configuration, call turbonetics and give them the T- part number on back of them. Reggie will be able to tell you what they were.

On the vband discharge housing, that won't work. Hopefully you haven't ordered yet. The cartridge offset to flange is entirely different on them, and nothing will fit anymore on either side.

White smoke is typically coolant as I'm sure you know. What did the plugs look like?

The compressor wheel looks like it ate something possibly. I would check filters as well if you haven't already.

cmiller8006

Ahh thats the info on the turbo's I needed. Definitly do not think it ingested anything into the turbo, filter is still on, and was brand new going on. I know for sure the turbo was literally spraying oil, there was oil on the center section and oil was in the turbine side, not sure if the vr1 oil would burn more whitish. But I never noticed any power loss.

Here is the plugs, L to R, 1 3 5 7

4DRUSH

Buy yourself a heat temp gun

BLOWNBLUEZ06@RKT Performance

Good idea!
In case there's any confusion about what he's talking about, it's one of these infrared thermometer guns.
They're an invaluable tool for isolating what cylinder is in trouble and discovering if what you changed solved the problem by shooting the each exhaust runner.

cmiller8006

Yea I have one of those, never thought to use it tho lol. Called tti, kinda depressing when they tell you, youll rebuild it and it will happen again because your running to much boost lol. And a pte upgrade is 4k. He did say tho as long as I can find a t3 turbine with 5 bolt discharge and no bigger then an e cover will fit. Looking into doing a set of comp's, waiting on call back.

slow ride

PTE only sells the 5 bolt housings in .64 A/R so that's why they use the Turbonetics one as they can get it in .82 A/R. You are stuck with a 5 bolt housing for placement reasons as Jon said above. If you measure the bore of the housing you will know what compressor you have as it will be close to the inducer side of the blade.

Upgrades from Turbonetics would be a 62-1 wheel (which you might have) or a 61mm billet. Pricing would be WAY less that the PTE stuff. You NEED a B cover if you plan to not modify anything. I'd run a ball bearing also if you are not. You can actually just reuse your turbine housing or possibly rebuild the turbos also. What is too much boost really?

jimbos'ss

They're saying you overspun the turbo and it caused the comp wheel to come apart?

cmiller8006

Yea he said that they shouldn't be ran over 15 lbs lol.

slow ride

That makes no sense as 15psi on a stock engine is way different than 15psi on a 427 etc. I wonder what they think about the import guys running 40-60psi?

cmiller8006

That's just what tti said lol. I ran 35 pounds for two years on a pte6262 with not one issue. But I pm'd you back

jimbos'ss

Exactly what I was thinking. Boost is irrelevant, pressure ratio and shaft speeds matter. Even at 15 psi on a 383 I doubt it was close to the upper right region of the compressor map on a 6265.

Smoove

lol at the too much boost comment.