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#1
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Torque Convertors
What brand convertors is everyone using for a street strip car?
1978 Trans Am TH350 Pontiac 455 with forged rods/pistons Heads ported to 250 cfm 9.5 compression Quadrajet carb 3.23:1 posi rear.
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Redline Design |
#2
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I'm very happy with my custom 10" PTC. Flashes to 5000 yet still drives nice on the street.
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'68 Firebird 463/pump gas/SD 325 E-heads/266-272 SR cam/1050 Dominator/3.73/ET Street Radials/1.37 60'/6.30@108.80/9.93@135.14 Hot Rod Drag Week finishing averages: 2014 - 11.12 @ 118.56 2015 - 10.84 @ 124.97 2016 - 10.56 @ 127.88 2017 - 10.29 @ 130.74 2018 - 10.29 @ 130.53 2019 - 10.16 @ 132.34 2021 - 10.09 @ 132.69 2022 - 10.13 @ 133.07 9.93 run - https://youtu.be/hII0_UlYM4U |
#3
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TransSpecialty 9" converter in my 67 Firebird.
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#4
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Redneck Racing 9.5", flashes to 5000 rpm and has 6.8% slip across the stripe.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
#5
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TCS and flashes to 5000 rpm. I hear the PTC converters are the hot ticket..
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
#6
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ptcrace.com
Most widely used by the fastest Pontiac racers. Make awesome street converters as well. |
#7
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I have used and been happy with ATI and Dynamic.
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LIFT HEAVY, LIFE IS TOO SHORT TO BE SMALL! |
#8
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PTC, call and ask for Lane.
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66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3.90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9.77@136.99 Multiple NSCA/NMCA World Champion 66 GTO 389 3x2, 4 speed, 4.33 gear, Montero Red 33K original Miles 67 GTO 2dr Post, 428, Tri Power, 3.55 Gears 80 Trans Am Black SE Y84 W72 WS6 |
#9
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Lane is the man. 9" PTC picked up .015 over a 8" TCI that was 400-500 $ more..
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#10
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I've had great results with both BTE and FTI. Super consistent converters
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Come take a ride http://www.youtube.com/watch?v=P7Y8Awfk2I0 2008, 2013, 2015, 2016, 2019 Central Il Dragway Mod track champion and 2015 IHRA Div 5 Mod champion |
#11
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Ive used Ultimate Converter Concepts (Lenny) 10" with great success. Changed combos, trying a brand new PTC 8" probably tonight if the weather holds.
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Clutch Guys Matter _______________________________________ 53 Studebaker, 400P/th400/9" 64 F-85 72 4-4-2 Mondello's VO Twister II 84 Hurst/Olds #2449 87 Cutlass Salon 54 Olds 88 sedan |
#12
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Thanks Guys! I am going to give PTC a call today.
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Redline Design |
#13
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Talked to Lane at PTC, in about four weeks I should have a torque convertor.
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Redline Design |
#14
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Quote:
If and when you get the converter installed, can you post some feedback. Much appreciated.
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
#15
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Took my car out last night with the new PTC converter. It scared me, I almost peed a little, and the car gets wheelie bars. Holy cow.
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Clutch Guys Matter _______________________________________ 53 Studebaker, 400P/th400/9" 64 F-85 72 4-4-2 Mondello's VO Twister II 84 Hurst/Olds #2449 87 Cutlass Salon 54 Olds 88 sedan |
#16
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Faster slower difference??
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#17
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I don't think people normally piss their pants from slowing down.
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#18
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Quote:
I will post some feedback when I get it installed. Motor should be back in a few weeks so we will see if I get it all together before the snow flies.
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Redline Design |
#19
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Touché!
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#20
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depends on HOW FAST you decelerate!!!! Speed has never killed but those sudden stops sure do
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