The new 5sfte, UPDATE: engine has low compression... Options

[6strngs]

well, after tearing the car down basically and replacing a lot of things. coming inches from giving up, and then changing my mind, and problem after problem, I've got another problem. My turbo blew. Some say it was under-fed oil, others say it was over-fed. In any case, it doesn't work. Well, this is the second turbo to blow on this car... the first one had problems from day one, but was used with an oil restrictor the entire time it was on the car... it lasted not even a week. the second one lasted about 2 months, and blew on the first hard run that I did after installing the restrictor. I'm not saying that it caused it, though it does really look like that, but everyone else on this website is using a restrictor without problems and swears that they are necessary, so I will still be using one on my new turbo. which brings me to that, I'm getting a new turbo. This time, a Garrett T3/T4 hybrid. 46 trim, .63 A/R. should be good for a couple more horsies anyway here's a list of some parts that'll be going on hopefully next week:

Garrett T3/T4 turbo, 46 trim .63 A/R
Tial 38mm wastegate, .7 BAR spring (10.15 PSI)
Ebay CT-26 to T3 manifold adapter
Custom 3" downpipe
Custom 3" Aluminum intake (thanks to CaliJeff)
Greddy oil catch can (again, thanks to Jeff)
Battery relocation

all the flanges, gaskets, and oil lines will likely be coming from ATPturbo.com who are located about 30 miles west of me anyway, I'm going to try to take a bunch of pictures and document this as best as I can. I'm going to be trying to do this without removing the A/C like I believe Shannon did. so, it's gonna be a challenge. but I'll figure it out one way or another. Anyway, here's some pictures of what I have so far, the rest should come in next week:

CT26 to T3 adaptor:


Intake:


Catch can:


more to come soon.

This post has been edited by 6strngs: Apr 15, 2008 - 10:58 PM

[6strngs]

sent an e-mail to the place I got my turbo from, here's what I wrote:

Hi,
My name is Nathan, I just ordered a turbo from you about 2 and a half weeks ago. It finally arrived today but it's the wrong size. I ordered a Garrett T/T04E, 46 trim, 0.63 turbine A/R, and 0.50 compressor A/R. What I recieved definately has a 0.70 compresser A/R which is way too big for my application, in fact, I tried to fit it in and it doesn't even fit. I think it might also only have the 0.48 turbine A/R because the fins on the exhaust side seem really small. but I'm not really sure. I'd really like to just return this turbo for the right sized one, but I'm kind of limited on time. So, what options do I have?
Nathan


here's the reply:


Hello NAthan,

Yes there is a model of t04e with smaller spouts (3" and 2" instead of 4" and 2½") but in terms of fitment, it will make no difference since all T04e compressor housings have the same outside diameter. Don'T worry aout the compressor A/R value being too large, it's not the case, this parameter has only minor impact on the behavior of the turbo and a higher A/R is more appropriate for mild setups while low A/R is better for very high pressure boosting.
The wheel trim that you have ordered (46) on the compressor side is basically what dictates the capacities of the turbo.
If physical fitment of the turbo is a problem, I would recommend switching to a t04b cold side that will reduce your compressor housing overall diameter by around 1" (½" each side) and we have some t04b cold sides with wheels flowing similar and even more than t04e 46 trim and they are the same price.

concerning your turbine side, i know it may be confusing but remember that the A/R of the housing has nothing to do with the fins of the impeller. you can vary the A/R and the wheel size remains the same. in your case, it's a stage 1 turbine wheel. if you want bigger wheel on the hot side, we can also do it but it will slow down spool up compared to stage one.
Since stage 3 turbine wheel is more expensive, we will double check your particular goals and expectations to determine if it'S really required.
please, confirm the engine you are boosting, it's atmospheric power and your power goals once boosted as well as the main use of the car. we will advise on the most appropriate hot side for your power requirements. modifying it is quick and cheap.
The turn around time on any such modification is only 48 hrs and we can ship express to save you time.

Have a nice day!