I was just wondering is there a big difference in the spooling up of a Turbo between the 2.I also have an Extra .63 Garett Housing that I don't need because I have one on my car right now.Does anybody know what a good used Garett .63 is going for in the Buick world today because I might put that up for sale.Its in good condition.??
Garett .63 Housing VS. Precision .63 Housing??
- Thread starter Godzilla
- Start date
Welcome!
By registering with us, you'll be able to discuss, share and private message with other members of our community.
With your converter the .63 will help spool the turbo a lot faster.
Turbo6Smackdown
Well-Known Member
- Joined
- Dec 31, 2005
- Messages
- 6,110
Can you break this down a little more for me?
Im not sure what ex wheel you have but if its a 52,69, or 76 trim i will spool much better with the Garrett .63.
GNVYUS 1
Well-Known Member
- Joined
- Dec 15, 2002
- Messages
- 4,364
Though they are the same A/R that doesn't mean they flow the same, the volutes are different and proven by those who gain mph in the 1/4 with the PTE.
Personally, I'd run the PTE for the power.
Personally, I'd run the PTE for the power.
The Precision .63 is closer to .75. 90% of the combos on here will gain e.t. with the Garrett .63 since they seem to think that they need the absolute minimum stall speed possible for their turbo. The Garrett .63 is good to 500whp with little loss of power. Ill be doing a few pulls in the near future with my blue car and directly comparing housings. Ill be sure manifold pressure is the same to eliminate big variables. My guess is less than 20whp gain or loss on a roughly 500whp application. Hopefully ill be able to get backpressure too. I always tell everyone to get the smaller housings unless they enough converter. If its a close call id always take the small one.
GNVYUS 1
Well-Known Member
- Joined
- Dec 15, 2002
- Messages
- 4,364
Ya that's the thing with the Garrett, it's better if you don't have a properly matched converter to your car. But if you leave the hole at say 3500 and 10psi, the smaller attributes to the Garrett are pretty much wasted. The PTE, like you mentioned, will relieve the backpressure up top which is where the car will be from the launch point on.
I have a different outlook when GN's talk about slow spooling, considering my daily 2.0L Talon that runs a 61/52S T4 .68 housing which will flow WAY more than our .85 PTE. That's slow, really slow in comparison and it's only about 2 seconds of lameness and then lookout.
I have a different outlook when GN's talk about slow spooling, considering my daily 2.0L Talon that runs a 61/52S T4 .68 housing which will flow WAY more than our .85 PTE. That's slow, really slow in comparison and it's only about 2 seconds of lameness and then lookout.
Thats just it with the TR's. Ive seen 70+mm compressor and HPS ex wheels spool very quick with a good tune and a proper converter. Ive seen near stock cars with bigger turbos spool like a turd. Being to leave properly off a pro tree wins races.
Similar threads
- Sticky
- Sticky
