PTE 50 trim max boost with setup?

[Slippi84]

Ok i know that any true and smart dsm guy gets suporting mods and then buys a bigger turbo. But i got my hands on a PTE 50 trim for 400 dollars shipped and there was no way that I was gonna pass this up. Even worse case scenario the turbo needs a rebuild which right now it does not the guy i bought it from is pretty straight up but you never know, that is still only around 225 dollars and would still be around how much i would pay for one anyway.

The real point is that I have no FMIC and still on my 450cc inectors. Now I do have a walbro 255 and a AFPR so i think if I can run enough fuel to get me by if I can keep the hp around 300. Thing is this turbo is a beast from what I've heard. I don't want to blow my engine because i sent crap loads of hot air into the engine and knocked like a JL W7.

For anyone saying to wait and just get the suporting mods I am rebuilding my whole engine and have the head off and I just purchased a SS ported and polished exhaust manifold and I have a O2 dump so i would love to put everything on the PTE while it's out and just put it back on the head and save myself thr trouble of doing it later.

The main question is around how much boost can I run and not blow my engine. I would like to not have to ####y foot the gas either but if this thing is just to big to give it any real gas i guess i can do it for 2 weeks or so.

 

[Xit40]

Follow your own advice and wait until you get the supporting mods. Until you get some bigger injectors/AFC or whatever fuel management your going to use. You can run your stock turbo to about 15psi safely. If you put the 50 trim on it will flow more air at a lower PSI probably around 12 maybe and you'll hit your fuel cut. It won't be any fun to drive that way.

 

[dave99gst]

So this great deal on a 50 trim is going to cost you $625 - and you can get one for all of $699 brand new from AGP
http://www.agpturbo.com/customer/product.php?productid=113&cat=&page=

 

[Slippi84]

NO that's a worse case cenario 625. It does NOT need a rebuild. I simply used that as a comparrison like say someone was selling a blown pte 50 trim it would cost about 225 to get it rebuilt. So i said it to show that I'm getting a good turbo for the price of a blown one. By the way my wise dsm friend that 699 is w/o internal wastegate which is 100 i have with my deal, and throw in another 50 for oil feed line. that's 850 bucs by the time your done and i didn't see anything on there for free shipping. This AGP turbo is rated to 400 on pump my PTE 50 trim is rated to 450 on pump. Thanks for your advice though man always apreicate you wiseman always give pretty good help.

 

[ColdAudio]

how are the turbonetics turbos? are they 270 or 360 degree? just wondering why their price is so much lower than the others

 

[DSM90AWD]

This AGP turbo is rated to 400 on pump my PTE 50 trim is rated to 450 on pump.

Not to split hairs but you'll find that PTEs HP ratings have been pretty sketchy in the past, whereas AGP uses actual customer Dyno#s. Then again both of these turbos use the same comp/turbine wheels, so diffs should be slight and related to turbine housing design.

The only thing I outwardly dislike on the PTEs is the need to remove the divider to run low boost (which you seem to want to do temporarily). Unfortunately, this operation cannot be undone, so when you finally get all your mods in place and want to run 20+ psi, your exhaust flow out of the turbine will be permanantly less than optimal.

On your question of "safe boost", as long as your ECU and MAF is stock, you car should prevent you from running too much boost thru the fuel-cut safeguard. But, as I mention in your other thread, a datalogger is mandatory at this point since you are adjusting fuel and airflow beyond the factory stds. You need to see knock and Injector DC% to ensure you are safe

 

[Omega]

So let me get this straight. You just spent a chunk of change getting your engine rebuilt and now you want to throw a substantually larger turbo on there with NO supporting mods?

How about you NOT install the new toy?

Polish the housing, make sure the engine is working well, put some miles on it THEN install the turbo.

Please?

Don't be "that" guy.