Mi 6466 broken shaft...

[Boost Solution]

hi i buy a new 6466 bb vband .82 turbo for mi Street/Strip car

I tune it to 30 psi with 90 percent duty cycle the car throw 620 whp on mustang dyno and ran 9.91 perfecly also gave several passes on the street.

I improve my fuel system and change my rods turn the boost up to 40psi and make 801 whp at 40 psi on dynojet whit a nice flat power-band. I tried it on the street, oil pressure, afr, egt everything perfect. I take the car to the track, rolling out of the tree the car ran 9.77 at 156mph with 40-44 psi boost.
for the next pass I start with two steep, spinning first gear, second perfect when I'm in third gear the car star to lose boost and suddenly turbo snap the shaft

the Dyno run https://www.youtube.com/watch?v=pEQERb_AXrQ

the death off the turbo
https://www.youtube.com/watch?v=2nXfuNCEb7g

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[staztrx250]

You can't even begin do a root cause analysis until you know all the facts. What bov did he have, what's his oiling scheme, what were the egts, how much back pressure.

When you push something to 100 precent of what it's capable of you need have everything perfect.

The first thing I see is your housing is too small for maxing the turbo out. It's been proven multiple times that .82 ar housing stops making power at around 750 and beyond that you are just sky rocketing the back pressure.

Also what kind of oil pressure do make at 10500 rpm, that's a huge consideration?

And too the moderator you should lose your privileges for sheer stupidity. I'm glad you have the fp sick stuck so far up your ass you can't see. Take a step out side the dsm community, how many fp turbos do you see on pro mod cars? What do you see? Pte equipped turbo cars smashing records.

 

[keltalon]

Soooo much miss information and ignorance in this tread it laughable!!!!!!!

I know with my 6266 precision recommend not running it past 36 pounds of boost. Running 40 plus psi can't be good.

Whats the rating on this turbo?

 

[staztrx250]

I know with my 6266 precision recommend not running it past 36 pounds of boost. Running 40 plus psi can't be good.

It's all relevant. Saying don't go past 36 psi isn't a set in stone number. You have to monitor back pressure.

 

[sbcxtreme]

What i was getting at is how is it pte's fault when someone pushes their turbo past what its rated at? They dont rate them at whp. So either you have extremely low drivetrain loss, or you exceeded the rating and it broke, simple as that. If you want to make more power then its time to step up to something that is rated for it.

 

[ExtremeTurboSystems]

.82 A/R making 905WHP @ 41 PSI
This was on E85 as well which has more back pressure than pump gas/race gas.

We use .82 A/R on almost all of our V-Band/T3 turbo kits and have made well over the 750WHP mark on multiple applications. Not saying it wasn't an issue for him but we don't usually have issues with back pressure.

 

[staztrx250]

.82 A/R making 905WHP @ 41 PSI
This was on E85 as well which has more back pressure than pump gas/race gas.

We use .82 A/R on almost all of our V-Band/T3 turbo kits and have made well over the 750WHP mark on multiple applications. Not saying it wasn't an issue for him but we don't usually have issues with back pressure.

It's all relative, your steps are near perfection. you made 100 more hp on less boost what does that tell you? You aren't choking it out yet because you have a well designed setup. On the average car you'll choke it out. Or build back pressure to the point where it will stop making power.

Boosting performance proved this on a few cars with 6766 turbos and the 64.

 

[JusMX141]

Soooo much miss information and ignorance in this tread it laughable!!!!!!!

Seeing people waste money is always hilarious.

 

[keltalon]

.82 A/R making 905WHP @ 41 PSI
This was on E85 as well which has more back pressure than pump gas/race gas.

We use .82 A/R on almost all of our V-Band/T3 turbo kits and have made well over the 750WHP mark on multiple applications. Not saying it wasn't an issue for him but we don't usually have issues with back pressure.

There's a big difference between 750WHP and 905WHP. I agree pushing the turbo well over its limits will kill any turbo.

 

[Boost Solution]

hi. the oil is valvoline Vr1 20w50. My oil pressure is about 100 psi at the pump the sensor does not read about it. In the run that the turbo blew the rev limiter was set 9800 rpm,max egt is 1650 in the mark of 402m, the maximum back-pressure in the dyno was 54psi a 40psi boost. Some tell me that the turbo will suck something went out of balance and I cause this catastrophic failure, other say than my intercooler (precision 650hp) with my long 2.5 inches piping was too restrictive and generated surge and blew the compressor.
my new setup has a t4 twin scroll longer turbo manifold with 1.16.ar 6466. new intercooler has a 5 inch core and 3 inch straight piping, the ecu changed to aem ems 2 . others slicks ,ratios and much less weight

 

[sbcxtreme]

Have you tried contacting Precision directly with this issue? Ive dealt with them quite a bit in the past and have never had any issues with their customer service. They have always been quick to respond and helpful in my experience. They have gone as far as to pro-rate pricing on a turbo when it was my fault it had an issue. You should give them a call and inform them of the situation, i know they like to get damaged units back so they can inspect them and get a better idea of what failed. Call and ask for Grant, thats who has helped me in the past. Good luck.

 

[nismoz]

You simply cant rate a part by hp ability, to many things come into account that will due damage to many mechanical parts of an engine/turbo an so on. Granted at 40+psi the turbo is catching hell an if cooled it would significantly reduced that "hell".
Point being is its just as much pte as the end user at fault, both could do better.

Whats a copy? How many different ways can you build a turbo? Get my drift?
probs just the cheap rotating parts not the designs.

U.S. Has become a fleamarket for CHINA.they leave us no choice but to buy BS when a U.S. Made one cost more than most ppl make a month.

 

[boost97gst]

I think even some holset components are made in china. China is just as capable of producing quality as anyone else. It all comes down to QC, and how typically, theirs is lacking.

 

[Phantom DSM]

You can't even begin do a root cause analysis until you know all the facts. What bov did he have, what's his oiling scheme, what were the egts, how much back pressure.

When you push something to 100 precent of what it's capable of you need have everything perfect.

The first thing I see is your housing is too small for maxing the turbo out. It's been proven multiple times that .82 ar housing stops making power at around 750 and beyond that you are just sky rocketing the back pressure.

Also what kind of oil pressure do make at 10500 rpm, that's a huge consideration?

And too the moderator you should lose your privileges for sheer stupidity. I'm glad you have the fp sick stuck so far up your ass you can't see. Take a step out side the dsm community, how many fp turbos do you see on pro mod cars? What do you see? Pte equipped turbo cars smashing records.

What a douche ! by the time i saw your first post, i was hoping you could "enlighten" us oh "wise one"...then you proceeded to be condescending by talking out of your ass. Disrespecting the Mod isnt giving your argument more plausibility. Im sure he sees these pte failures on a daily basis.
Last time i checked Devin at Boostin was not even using a pte, he had a Garrett...and who cares about pro mod class, these people are sponsored so far up the ass , they could care less who is supplying the turbos they go through...
You bring no relevant info to argue, face it their turbos are not all that great and in percentage they have a higher failure rate than other manufacturers... I have seen it, we've all seen it..
Seriously what an ass

 

[staztrx250]

What a douche ! by the time i saw your first post, i was hoping you could "enlighten" us oh "wise one"...then you proceeded to be condescending by talking out of your ass. Disrespecting the Mod isnt giving your argument more plausibility. Im sure he sees these pte failures on a daily basis.
Last time i checked Devin at Boostin was not even using a pte, he had a Garrett...and who cares about pro mod class, these people are sponsored so far up the ass , they could care less who is supplying the turbos they go through...
You bring no relevant info to argue, face it their turbos are not all that great and in percentage they have a higher failure rate than other manufacturers... I have seen it, we've all seen it..
Seriously what an ass

Who said anything about the demon? And it used to run a pte 6766 before the super 99.

And they tested it in the t3 and then the t4 on a few cars. The t3 housing was choking it out to the tune of 50-100hp

Drew Jones has the same problem with v band .82 ar he started getting choked flow at around 750. Proceeded to go t4 and ran right past that mark.

You mad bro? Do some real research before you swing off the mods nuts!

Look how many recorded holding pte powered cars there are.

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[Phantom DSM]

Who said anything about the demon? And it used to run a pte 6766 before the super 99.

And they tested it in the t3 and then the t4 on a few cars. The t3 housing was choking it out to the tune of 50-100hp

Drew Jones has the same problem with v band .82 ar he started getting choked flow at around 750. Proceeded to go t4 and ran right past that mark.

You mad bro? Do some real research before you swing off the mods nuts!

Look how many recorded holding pte powered cars there are.

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Dude seriously I mention Devin because thats what puts boostin on the map in relevance, not to mention hes a hell of a driver no matter what turbo hes using. He'll get a badass timeslip time either way. Lets not discuss records and blah blah, we are speaking about RELIABILITY. The op is now fu**ed because pte 99% wont help the guy out, hes SOL . You must have deep pockets to swing off PTE nuts if buying another turbos so soon is cool with you ..

 

[staztrx250]

1 6466 ( that out of the hundreds they sell per months) that is being pushed to its upper limit fails and they make bad turbos !

And calling the moderator out because it's not right for someone in a power position to slander a company's reputation based on inaccurate information. And remove/tarnish good threads about pte on here.

 

[ExtremeTurboSystems]

OP have you tried to contact Precision Turbo yet? I deal with them on a daily basis and don't have any issues with customer service. Someone is always there to pick up the phone when I call. We very rarely have to deal with warranty issues either.

I would suggest contacting someone over there and I am sure they will get you taken care of.

 

[Phantom DSM]

Precision Turbo and Engine: Contact Us
Maybe they can hire you, people like you can sell rocks to ignorant people people. You can enjoy each other as much as you want in the hands of Pathetic Turbo Engineering
But in all seriousness, do you have any data to prove this, ?unless you already got a job there and can infiltrate their quality failure and warrenty claim data.. Let us know man

 

[staztrx250]

OP have you tried to contact Precision Turbo yet? I deal with them on a daily basis and don't have any issues with customer service. Someone is always there to pick up the phone when I call. We very rarely have to deal with warranty issues either.

I would suggest contacting someone over there and I am sure they will get you taken care of.

X2 they have excellent customer service.

Call pte ask for Grant explain what happened and he'll take care of you.

 

[nismoz]

No reason to name call about one problem,to many other things you would agree on.
Anyway as to the op and pte- if you ran a stock gst turbo at 21psi (which it will do) very long, the shaft WILL break guaranteed! Done it a few times...
Do you think mitsu is going to make that mistake right? Hell no. Same situation sits here.

 

[DSMReviver]

Im still planning to buy PTE turbo if Forced Performance refuse to take my money

With either turbo i am not going to take it to bagillion psi, that just asking for trouble. Try and run any turbo at 40+ psi all the time and it will shit on your face.

Save the argument, do it for the kids. We have one snail kid name PTE and the other Garrett. We don't want to hurt their feelings. or love one more over the other its just not fair. do it for the kids

Will someone share some of their PTE turbo in action to reminisce/drool on? This may help alleviate some of the bad vibe in here.

Guys I have found the truth about these snails. I think you should check it out.

[ame=http://www.youtube.com/watch?v=VTV23B5gBsQ]True Facts About The Land Snail - YouTube[/ame]

 

[staztrx250]

My buddies 6466 on 28psi

https://www.youtube.com/watch?v=ur82itWrYMQ&feature=youtube_gdata_player

My old 2.0 motor on a 6266 https://www.youtube.com/watch?v=xlinqcPmM1E&feature=youtube_gdata_player


I'm sure there are just as many vids of fp turbos in action.

As for me I'm pte for life!

 

[Archer Fabrications]

You can daily a holset at 40psi just sayin. Lmao. Anyway back on topic.

 

[keltalon]

Im still planning to buy PTE turbo if Forced Performance refuse to take my money

With either turbo i am not going to take it to bagillion psi, that just asking for trouble. Try and run any turbo at 40+ psi all the time and it will shit on your face.

Save the argument, do it for the kids. We have one snail kid name PTE and the other Garrett. We don't want to hurt their feelings. or love one more over the other its just not fair. do it for the kids

Will someone share some of their PTE turbo in action to reminisce/drool on? This may help alleviate some of the bad vibe in here.

Guys I have found the truth about these snails. I think you should check it out.

True Facts About The Land Snail - YouTube

Here is mine in action with the cyclone intake manifold!
[ame]http://www.youtube.com/watch?v=jFXvj74DAmo[/ame]

 

[killercolt]

It is well know that small shaft turbo can not take abuse too long. Even bigger shaft turbo like the gt4088r will fail under high boost. I had seen two snapped 16g shafts from running 27 psi+ but guys bring it to 30psi+ many time without issue. Medium frame turbo like the PTE turbo that snapped the shaft is a small shaft turbo. It is going to snap the shaft being operated like that. I believe the hx40 Has a bigger shaft than the midframe pte turbo. The air cool fins idea from pte to me is a little goofy. Those fins on the center section is not doing crap to keep it cool. That turbo need water cool. In my opinion, all turbos should be water cool.