I am assuming that this is a Precision 6131E by seeing the part numbers listed on Jacks site. This turbo has become very popular and was specifically designed for those wanting more kick than any of these turbos, (TE-44 -PT54) without having to run such a high stall converter. It is rated to support up to 615 - 620 flywheel hp when maxed out. The journal bearing version will really love a converter that can flash stall to 3000 and the dual ball bearing version will work on a stock D5 converter and will spool up insanely fast with a 3000 stall. The 60# Mototron injectors and a TT chip will also compliment this turbo very nicely. It will have very good street manners, and at 15-17psi, with other supporting bolt ons (downpipe, intercooler upgrade, exhaust system, RJC power plate, hot wired 340 fuel pump, adj fp reg, scan tool and at least drag radials) it should give you a solid low 12 second combination on 93 octane pump gas. This turbo really starts to come on strong at around 18psi, and will be maxed out at around 29psi, due to the T-31 turbine wheel. It typically comes with a .63 A/R PTE turbine housing and with either standard spring or heavy duty spring actuator, you should not have to port the wastegate hole for solid boost control. I would recommend an RJC boost control valve with this setup as well. This combo above, with sticky tires and suspension mods and either pure race gas, or alky and 93 can push a full weight TR into the very low 11's without too much trouble.
As far as the part numbers are concerned, it might be a typo as I believe that PTE changed the part number from 300-6132 over to 300-1425 for the journal bearing version (PT6131E) and 300-1426 for the dual ball bearing version. (PT6131RE)
http://www.precisionturbo.net/Web-Site-Pricing.pdf
There is however a 6152. This version has the same compressor wheel and compressor cover, but it uses the T350 76 trim turbine wheel. With this turbine wheel, the flywheel hp is raised to 630 when maxed out. Because it uses the T350 turbine wheel, it can be run at higher boost levels. I have personally seen this turbo run up to 32psi before on a Buick application, but I wouldn't push it past that level. The last I heard from Mike at FT and Brian at PTE, was that it was currently only available in journal bearing (PT6152E), even though PTEs price sheet list it available with the dual ball bearing chra. It also comes standard with a .63 A/R PTE turbine housing, but the turbine housings between a 6131E and a 6152E are not interchangeable due to the different turbine wheels. The journal bearing version of the 6152E or 6152S will require a converter that can flash stall to at least 3200 rpm.
Both turbos (6131 and 6152) are available with the standard E cover which has a 3" inlet and a 2" discharge, or the optional TO4S cover which has a 4" inlet and 2.5" discharge.
Here are some example pics of the two compressor covers.
Precision casted E comp cover equipped 61 turbo.
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Garrett TO4S comp cover equipped 67 turbo, but same style cover that can be optioned on the 61 turbo.
Hope some of this helps.
Patrick
