Is PT52 better than TE44?

[TRFanatic]

Hello all,

I have a TE44 with 60-1 wheel, polished also .63 housing. If I go to a PT52 (.63 housing) will I see a gain and also will any mods be necessary or just bolt in?? I also have 3" THDP and 9" AC non l/u. I am seeking excellent throttle response and bottom end power.

Thanks for your time,

Ravi

 

[turbo2nr]

GO BIGGER! Get a PT-54, or a TE-61. Same price, mo power!

 

[turbobuickman]

Im also tryin to decide between a 44 and pt-52. How much more power will the 52 make over the 44 and does that power come at any cost i.e. low end/spool up/street manners?

 

[turbo2nr]

Originally posted by turbo2nr
GO BIGGER! Get a PT-54, or a TE-61. Same price, mo power!

Ask around for an opinion! You will regret not getting a bigger turbo. I have had a TE 44, a PT 52, and a TE 61. I love the te 61!! Go for it. Great spoolup!

 

[greg wilson]

does the 61 work good with a stock converter?.

 

[turbo2nr]

You can build boost, launch good, and have a time with it.. FUN!

 

[GS70350]

I recently had John Craig rebuild a TA61 for me and i installed it on my car with a stock long block, just bolt ons. I took the headers off and put exhaust wrap on them as well as the crossover and downpipe. It has the stock D-5 in it, stalls at maybe 2200-2400 depending on the day i guess.

Anyway, i have two turbine housings for it. One is the Garrett .63 A/R and the other is the Precision .63 A/R. I installed it first with the precision housing and could get about 5 PSI of boost at the line. Boost would come up pretty slow and then could not be kept much below 20 for some reason in high gear. I wasnt to happy with the spool up, made getting into the throttle around turns pretty interesting.

I put the garrett .63 housing on it last week and the spool up is much nicer. Blows the tires away quickly now, feels alot stronger on the low end, etc.

I think the TA61 or TE61 is good for the street with a stock converter, just dont use a large housing unless you like straight line only. It can be a handfull on some twisty roads when the boost comes on, but it does have a nicer top end charge.

Later

 

[d0n_3d]

go PT61 and be done with it IMO...the best turbo out there for the money...I love mine, it puts you in your seat even past 100 mph...

 

[turbo2nr]

FYI, John now uses percision turbine housings on the te-61. They rock! Switching from a garrett to a percision housing with the same a/r is like switching from water to bottled water. There is not much difference. If anything, the percision is better. Just my opinion.

 

[trading t/a]

Supposedly the turbine housings differ from manufacturer to manufacturer. A garret .63 is small er than aprecision .63 which is smalle rthan a turbonetics .63. Which would explain your slower spoolup on a different turbine!!!!

 

[GS70350]

Originally posted by trading t/a
Supposedly the turbine housings differ from manufacturer to manufacturer. A garret .63 is small er than aprecision .63 which is smalle rthan a turbonetics .63. Which would explain your slower spoolup on a different turbine!!!!

Yea, i know. I figured everyone knew that, or else i would have explained in detail why my garrett .63 housing spooled faster than the precision .63 housing. I will be leaving the garrett housing on unless i install the red strip converter soon, in which case i may try the precision housing again.

The external dimensions of the precision housing is much larger than its garrett counterpart. It is heavier, has a larger wastegate hole, and if you look inside it appears to have more volume than the garrett.

For those looking for the most power, i consistently lost 1.0 mph with the garrett housing when compared to the precision housing of the same aspect ratio. Top end is DEFINATELY better.

 

[trading t/a]

I had a turbonetics .82 on my old 60 and picked up 31 mph on the big end, I'm a believer in the larger housings, too bad my old converter was junk!

 

[turbo2nr]

I don't understand why three housings with the same a/r have such different volumes/sizes in them. I mean, the a/r is a measured ratio that should be the same, or the housings are not really what they say. Take the area of "A" (the area of nozzle), And divide by "R", (the distance from the center of turbine wheel to the centroid of "A"), and you have your A/R. Maybe I need a few moments to think about this. I guess if you have a larger nozzle, and the same ratio size larger distance from center of wheel to "A", you can have two different size housings with the same A/R, But with all the housings we are talking about being a three bolt style, shouldn't they all have the same size nozzle?(inlet).
I just got back from a track rental today in MD. Cal Hartline was there to help with tuning, and other "fast guys". Good times!. Any way, I was trying a .85 housing on my TE-61, compaired to a .63. I really did not see that much difference. Just a little. So how can a housing of the same A/R, .63/.63 really change the spoolup of a turbo?

 

[trading t/a]

Could be just the way it looks, but it's a coincedence that certain housing spool quicker than same same a/r housings from another vendor.

Only way would be to plexiglass the open areas shut (cc it for the volume) add a solution into each housing and take your measurements of which housing holds what. That would be my guess as to the only laymans way of coming to the conclusion.....