This is the best possible situation because now you can test the two housings for yourself. I would do as you originally planed and run the Precision first because you will learn the difference between the spool times of the smaller and bigger engines. Then change to the Garrett and learn the difference between the two turbine housings which will make you the go to guy when someone asks the same question you asked when you started this thread. You won't be guessing,you'll be sharing your real world experience. You will be able to share your experience about two different sized engines and two different sized housings. If you change to the Garrett before running the new engine,you won't be able to tell anyone how much the bigger engine helped nor how much the smaller housing helped.
TE45A which exh housing should I use?
- Thread starter 626gn
- Start date
TTA976
Active Member
- Joined
- Jun 22, 2014
Yes report back please.
Lucky, we have a compressor map for the 66 Garrett compressor wheel that comes on that turbo. I see why the Buick crowd had so much success on it has a very wide pressure ratio range! Damnnnn ...
looks to rated 700hp + with 65 turbine.
Moves 72 #/min ....
Lucky, we have a compressor map for the 66 Garrett compressor wheel that comes on that turbo. I see why the Buick crowd had so much success on it has a very wide pressure ratio range! Damnnnn ...
looks to rated 700hp + with 65 turbine.
Moves 72 #/min ....
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434nova
Active Member
- Joined
- Sep 30, 2013
I would say it does that on my car. I wouldn’t mind trying the Garrett housing to see if the smaller .63 has a benefit over the precision.63 on my car the turbo won’t make no more boost I run it all in.
Jerryl
Tall Unvaccinated Chinese Guy
- Joined
- Dec 14, 2004
Bison – TE45A question
Any idea? What is the real world “sweet spot” for a TE45A with 0.83 PThousing on a car with ported heads/intake? What about Boost/BP ratio? Don't know shift RPM at this time. :(
now this the truth right here
really,race them and see
ive seen plenty of real .63 go 9sec and low 10.0s.
TTA976
Active Member
- Joined
- Jun 22, 2014
Percision turbo !!!! the friggin leader in turbo race and street apps make 2 exhaust housing for the turbo Buick’s. .63 “ theirs is actually closer to .75 “ and .85 ...Both are bigger than advertised.
PTE NEVER PUT A TRUE . 63 on any of their turbos for us!!! Not even their tiny Buick 5557 turbo lmfao
PTE NEVER PUT A TRUE . 63 on any of their turbos for us!!! Not even their tiny Buick 5557 turbo lmfao
ive seen that too.my friend has a stroker and 66bb65 wheel with a .63 ex housing and has hit 32psi
very hard to argue with that
for those that forgot
for sure it does
TTA976
Active Member
- Joined
- Jun 22, 2014
really,race them and see
really,race them and see
The 9 second pass with true .63 was a T70 not 6665
A 6266 .85 can go 9’s if you whip it and spool wayyyyyyy faster...
if you’re running low tens at 124-126 mph 1/4 mile over here you will get scraped on the street. Mph is low! Ever think about that?
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actually i personally can run that in the 1/8th on a 109
this is a false statement for sure,and i challenge you to run both combos,i know where my money would be
i want to see a 58mm turbo on a buick run 10.0 like a 66 car has with a tiny little .63i do all the time personally as i am about et not mph
actually thats impressive to me,car is laying down the torque right from the hit,like nitrous car
are you asking me or telling me?
All of this talk has got me thinking about my own situation. I have a 67/76 with a Precision housing,similar to a 45a. I've already experienced quicker spool times since I bolted a bigger engine to this turbo. Now I see 24 psi of boost with the waste gate wired shut. I'm suddenly curious to see if the actual/Garrett .63 housing will spin the compressor faster.What do you think Mr.Spool?
- Joined
- Jan 18, 2011
Goes about 80+hp more then that!
if i was driving it i would know as there are signs to certain issues,if you can want to pm me we can chat about how the car is working.a good start is need to see where the air intake charge temps are at.also what kind of fuel does it use?you can also look at bp reading as well.one tell tale sign of overspeeding is sheared comp wheels and bearing losses with damages to the shaft.if your hitting a backpressure issue it wont make the boost and will pop as it tries too.from what i have seen if your on a .63 ex housing with the right motor on these 70/80 lb/min turbos using a boat load of fuel your probably out of comp wheel not turbine if your 65/66/68.
