Precision Dual BB turbos that will work with the stock torque converter and are available with a 3-bolt PTE turbine housing that I know about are,
TE-32R (3231RE)
Old school TE-32 with TO4E compressor cover and PTE .63 A/R turbine housing, 480 fwhp capability.
TE-34R (3431RE)
Old school TE-34 with TO4E compressor cover and PTE .63 A/R turbine housing, 535 fwhp capability.
These two turbos are more common in the Sport Compact world, but because they use the T31 Stage 3 turbine wheel, they could be made into a Buick 3-bolt configuration with the E compressor cover. This also means that the wastegate actuator for a Precision casted .60 A/R TO4E compressor cover will work.
TE-44R (4431RE)
Betcha didn't know about that one huh guys?
Standard TE-44 with dual ball bearing and TO4E compressor cover, PTE .63 A/R turbine housing. 550-560 fwhp capability.
TA-60R (they might wind up calling this one the 6031RA if their numbering system stays the same) Standard TA-60 with dual ball bearing and stock appearing TA series compressor cover. 565 fwhp capability.
TE-60R (6031RE)
Standard TE-60 with dual ball bearing and TO4E compressor cover, PTE .63 A/R turbine housing. I currently have this turbo on my 87 T now. 575-580 fwhp capability.
PT6131RE (6131RE)
61mm inducer compressor wheel, Stage 3 T31 turbine wheel, TO4E compressor cover, standard PTE .63 A/R turbine housing. 600-615 fwhp range.
PT6131RS (6131RS)
61mm inducer compressor wheel, Stage 3 T31 turbine wheel, TO4S compressor cover, standard PTE .63 A/R turbine housing. 615-625 fwhp range.
PT6131RSP (6131RSP)
61mm inducer compressor wheel, Stage 3 T31 turbine wheel, TO4S compressor cover with ported shroud, standard PTE .63 A/R turbine housing. 615-625 fwhp range.
With these next dual ball bearing turbos, I would recommend changing the converter.
PT6076R (6076RE, 6076RS, 6076RSP)
This would be considered the old school 60-1 turbo but with dual ball bearings.
60-1 compressor wheel, small shaft P-trim turbine wheel. Three compressor cover options, TO4E, TO4S, TO4SP, standard PTE .63 A/R turbine housing. 575-590 fwhp capability range. Minimum 3000 stall converter.
PT6176R (6176RE, 6176RS, 6176RSP)
This would be the top of the line PT61 turbo, with a small shaft P-trim turbine wheel. 670-680 fwhp capability range. 3000-3200 stall converter.
PT6776R (6776RE, 6776RS, 6776RSP, 6776RH, 6776RHB, 6776RHP)
The famous PT67 turbo with dual ball bearing. Some like to call it a GT67R. 67mm compressor wheel with a small shaft P-trim turbine wheel. 6 different compressor cover options. Right now, some of you are like, "What the heck is an HB cover?" The HB cover is a standard H cover (4"inlet, 3" outlet, but it has a 6" inlet bell that is pressed onto the 4" inlet.) You can not slip a hose onto the inlet as it's a monsterous 6" round, belled ring. Great for guys who don't want to run an inlet pipe and want to put the turbo behind the front bumper, but not so great for folks who have to run the factory piping configuration. Won't work when the turbo is mounted in the factory location. 780-800 fwhp capability range. 3200-3500 stall converter.
Then there's the 70 series (70, 72, 74, 76) dual ball bearing turbos.
What do I know about those?
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In other words, not much cause we never sold any to any Buick guys or if we did, I never heard about any results or beta testing results. Cal Hartline and Mike Licht are probably going to be the ones with those results when the time comes.
Hope some of this helps.
Patrick
