DSM Torque Converter Data Page

The data below is from Sinister Speed customers, their results may or may not be what you’d experience on your DSM with the exact same Torque Converter.

9.5″ TORQUE CONVERTER DATA


NAME = “Michael Bender”
SINISTER SPEED CONVERTER = 9.5″ Weighted
YEAR = 1997
ENGINE & COMPRESSION = 2.0L LR 8.7:1
HEAD = 2G with valve work
CAMS = FP3X
TURBO = BW S372
EXHAUST HOUSING = T4 1.10
EXHAUST MANIFOLD = Tommy Engle
INTERCOOLER + PIPE SIZE = FMIC + 3″ Piping
THROTTLEBODY = Q45
INTAKE MANIFOLD = JMF Drag
FUEL = E85
ECU & TUNING SOFTWARE = AEM EMS
FOOTBRAKE RPM & PSI = N/A
FOOTBRAKE RPM w NITROUS = N/A
SHIFT RPM DROP = 1900 rpm
TIRE SIZE = 24.5″
TRAP RPM = 8410
CONVERTER EFFICIENCY = 1.8% (average of both calculators)
1/8 or 1/4 MPH & E.T. = 136mph (32psi@WOT)
RPM vs MPH GRAPH














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9″ TORQUE CONVERTER DATA


NAME = “Anonymous”
SINISTER SPEED CONVERTER = 9″ Core 1 Weighted W/ 20 Blade Stator
YEAR = 1994
ENGINE & COMPRESSION = 2.0L 10:1
HEAD = 2G curt brown Head
CAMS = HKS 272/264
TURBO = FP DSM76hta
EXHAUST HOUSING = FP Housing
EXHAUST MANIFOLD = FP Race Manifold
INTERCOOLER + PIPE SIZE = FMIC + 2.5″ Piping
THROTTLEBODY = Stock
INTAKE MANIFOLD = Stock
FUEL = E85
ECU & TUNING SOFTWARE = Megasquirt
FOOTBRAKE RPM & PSI = 4000rpm
FOOTBRAKE RPM w NITROUS = N/A
SHIFT RPM DROP = 1800 rpm
TIRE SIZE = 26″
TRAP RPM = 8400
CONVERTER EFFICIENCY = 6.3% (average of both calculators)
1/8 or 1/4 MPH & E.T. = 1/4 Mile ( 9.7 @ 138mph non nitrous)
Video Link CLICK HERE














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8″ TORQUE CONVERTER DATA


NAME = Kevin Collins
SINISTER SPEED CONVERTER = 8″ Core 2 Weighted W/ 20 Blade Stator
YEAR = 1990
ENGINE & COMPRESSION = 2.0L 8.5:1
HEAD = 1G Stock Ports with Springs, Retainers and Valves
CAMS = BC 280
TURBO = PTE 62/66
EXHAUST HOUSING =T4 .81
EXHAUST MANIFOLD = Full Race Ram-Horn tubular
INTERCOOLER + PIPE SIZE = FMIC + 2.5″ Piping
THROTTLEBODY = stock
INTAKE MANIFOLD = dvdtfab sheetmetal
FUEL = e85
ECU & TUNING SOFTWARE = Haltech Platinum Sport 1000
FOOTBRAKE RPM & PSI = 4700 rpm (2 step over a 10 second period)
FOOTBRAKE RPM w NITROUS = never tried
FLASH RPM = 6000 rpm
SHIFT RPM DROP = 1300rpm
TIRE SIZE = 26.0
TRAP RPM = 8800rpm
CONVERTER EFFICIENCY = 6.7% (average of both calculators)
1/8 or 1/4 MPH & E.T. = 1/4 Mile ( 9.44 @ 144mph non nitrous 39psi@WOT)
DYNO HP/TQ @ PSI = 744 hp / 535 tq @ 35 psi (uncorrected)
11″ RESTALLED DYNO HP/TQ @ PSI = 655 hp / 454 tq @ 35 psi (uncorrected)
11″ RESTALLED FOOTBRAKE RPM = 2800 rpm

SINISTER MIKE COMMENT: Kevin is clearly one of the best DSM tuners in the country, I don’t think most customers will achieve a 4700rpm footbrake stall on the 2 step with this converter. I’d use his results as the 1% example and expect a somewhat lower stall with this combo.
Take note of the huge difference in power and stall vs the 11″ restall converters. This is why we spent so much time trying to find a core that really works for this platform, I’d say we found it and a few others now:)




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NAME = Kevin Collins
SINISTER SPEED CONVERTER = 8″ Core 1 Weighted W/ 12 Blade Stator
YEAR = 1990
ENGINE & COMPRESSION = 2.0L 8.5:1
HEAD = 1G Stock Ports with Springs, Retainers and Valves
CAMS = BC 280
TURBO = PTE 62/66
EXHAUST HOUSING =T4 .81
EXHAUST MANIFOLD = Full Race Ram-Horn tubular
INTERCOOLER + PIPE SIZE = FMIC + 2.5″ Piping
THROTTLEBODY = stock
INTAKE MANIFOLD = dvdtfab sheetmetal
FUEL = e85
ECU & TUNING SOFTWARE = Haltech Platinum Sport 1000
FOOTBRAKE RPM & PSI = 4000 rpm (2 step limited) – 15 psi
FOOTBRAKE RPM w NITROUS = never tried
FLASH RPM = 6000 rpm
SHIFT RPM DROP = 1200 rpm
TIRE SIZE = 26.0
TRAP RPM = N/A
1/8 or 1/4 MPH = N/A
DYNO HP/TQ @ PSI = 645 hp / 441 tq @ 35 psi (uncorrected)
11″ RESTALLED DYNO HP/TQ @ PSI = 655 hp / 454 tq @ 35 psi (uncorrected)
11″ RESTALLED FOOTBRAKE RPM = 2800 rpm

CUSTOMER COMMENTS : Converter was slightly looser up top than my
restalled stock converter but it still was able to put down an amazing
amount of horsepower. The converter is WAY looser down low which is
perfect for a big turbo car without nitrous or for a street car that
was a quick flash up to 6000 rpm when you stab the throttle.



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NAME = Kevin Shumaker (Sinister Speed Sponsored DSM)
SINISTER SPEED CONVERTER = 8″ Core 2 Weighted W/ 18 Blade Stator
YEAR = 1992
ENGINE & COMPRESSION = 2.0L 9.0:1
HEAD = 1G Unported w/Ferrea valves
CAMS = BC280’s Intake 0 Exhaust +2
TURBO = FP3052
EXHAUST HOUSING = FP30 (DSM)
EXHAUST MANIFOLD = FP cast
INTERCOOLER + PIPE SIZE = Sloboy race FMIC + 2.5″ Piping
THROTTLEBODY = 75mm Accufab
INTAKE MANIFOLD = JMF Drag
FUEL = E85
ECU & TUNING SOFTWARE = AEM EMS
FOOTBRAKE RPM & PSI = Instantly to 3100rpm 0psi, up to 3500 rpm 2psi in 2 seconds, after another 4-6 seconds boost builds quickly, currently limited at 4200rpm and 10psi (any more pulls through brakes, need to add vacuum pump).
FOOTBRAKE RPM w NITROUS = With .26 nitrous pil activated log shows jump from 3000rpm to 4000rpm in ONE second. Have not tried footbrake above 4200rpm.
SHIFT RPM DROP 1300rpm
TIRE SIZE = 26″
TRAP RPM = 8100rpm @ 133mph
CONVERTER EFFICIENCY = 6.48% (average of two calculations based on 10.4 run)
1/8 or 1/4 MPH = 1/4 = 10.82@129mph no spray 31psi. 10.49@133mph on 31psi and spraying 26 pil.
60ft time = 1.61 (need to work on the tune)
DYNO HP/TQ @ PSI = 418awhp/432awtq @28psi (Mustang Dyno, 100F Day)
VIDEO LINK = CLICK HERE

CUSTOMER COMMENTS : Car seems to drive nicely on the street. Trans temps ~165 when cruising in traffic. If footbraking without nitrous, trans temps climbed to 200-210 by the time car was ready to launch, however at the track using nitrous to stall temps were 140 when staging and only climbed to 180-190 by the end of the pass in 85 degree weather.

SINISTER MIKE COMMENTS : Small turbo combos will excel with the 8″ Core 2 converter vs the stock 11″ converter due to the 8 inches tight top end coupling and crazy low end stall. We can make this converter a 16 blade and it would still stall higher than the stock 11″ converter and couple even tighter. Also keep in mind that running the transmission temperature under 200 degrees during a full pass helps the top end couple up to 1% tighter and even more on more powerful engines. Tip = Keep that trans cooler fan running as soon as you hit the first staging lights DSMers!!!!