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Posted by awd4u, May 14, 2012
Turbo System Tech - 4G63 turbos, Intercooling, Boost Control, Wastegates, etc.
how are these turbo's? what psi do they start waking up at?
I've never seen such a general question asked in my entire term on this site.
Kind of reminds me of this one, http://www.dsmtuners.com/forums/newbie-forum/435748-pulley-problems.html
Garett turbos are cool. They wake up anywhere from 1-50 psi. Good luck!
Well i have mine set to 15 psi, its nothing special.. my 16g was better on 15psi.
Oh sh**, my bad, im talking about a gt35r!
What everyone is trying to tell you is be more specific.
Garrett, a company, produces a wide range of products and one of them are turbochargers. These turbos also come in a wide variety of models, each model better suits the vehicles application.
Without knowledge of what garrett turbo you are running, its all up in the air, we can only make guesses. Details please.
Its hard to compare a 16g and 35r, different leagues. Do you research and see when 35Rs are supposed to spool on a 2.0 compared to a 16g and efficiency range (compressor map).
A GT35R is still going to move more air at 15psi than a 16G; but once you factor in the lag, a 35R is going to feel like a turd at 15psi.
oh ok, i understand about the lag and everything, so what boost level is the GT35r suposto start feeling good pulls? 20+? i have a 2.0 litre motor with wiseco pistons, eagle rods, hks 272 cams, 4 inch pipe, 3 inch turboback catless, intake manifold, 40mm external gate, i got the whole works. im just on 94 pump gas.
Sometimes, when they're attached to an engine, they spin
Define "feeling good".....
Like, ooooh baby, yea that's nice, right there....
Because that's not what turbos do.
What size injectors and pump are you running?
@ this thread and at the answers
i totally agree chase is this a joke or a thread of boredom?
@ your post on that thread. ####ing genius.
Yeah, I normally don't have sex with my turbos either.
Agreed. This is the first thread I've 'd at in a while.
Garrett makes so many different sized models and variations of turbos that its impossible to give you an answer about when they "wake up"...
But Generally :
The company Garrett was bought out by Honeywell a few years ago. The turbochargers they produce are still rather good quality, but since they have owned the brand name Garrett, the quality control has gone downhill. Honeywell is in it for the money. They use the cheapest parts they can get by with, and sell it for as much as they can get people to pay for it. At the end of the day you are paying for a brand name.
Many people use Garrett turbos on their cars with no issues. I prefer MHI (Mitsubish Heavy Industries), Borg Warner, or Holset when it comes to buying turbos.
If your plans are to run 15psi, a 35R is the wrong turbo. If your plans are 30psi min & probably more like 35psi or so, the 35R would be a better choice.
Whats are the goals for the car? What do you have for fuel & tuning? If your profile is up to date, you'll need much larger injectors to get anywhere's close to the potential from that turbo.
EvoIII big 16g, 3 inch turbo back, Fmic, 2g Manifold, 255 walbro, 660 injectors, MAF delete running 3 inch pipe off the turbo with MAP, Type RFL bov.
from profile...soo he needs bigger injectors and more fuel depending on what fuel he using