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#1
08-17-2000, 02:17 PM
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Here's the problem. A freshly restored 1973 Trans Am, 455, auto trans that won't pull. The motor is fine, running smoothly at idle and RPM. The issue is that the car stalls way up in the RPM band (should be a 2000 stall converter), shifts late and shifts very harshly when it does shift. It's as if the motor has no power and will barely pull the car. Trashed converter? It's a Butler PTC converter.
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12.84 @ 106.89 with street radials. 12.63 @ 108.39 on drag radials. |
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#2
08-17-2000, 02:17 PM
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Here's the problem. A freshly restored 1973 Trans Am, 455, auto trans that won't pull. The motor is fine, running smoothly at idle and RPM. The issue is that the car stalls way up in the RPM band (should be a 2000 stall converter), shifts late and shifts very harshly when it does shift. It's as if the motor has no power and will barely pull the car. Trashed converter? It's a Butler PTC converter.
__________________
12.84 @ 106.89 with street radials. 12.63 @ 108.39 on drag radials. |
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#3
08-17-2000, 02:39 PM
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My guess, low on tranny fluid, or way too much timing advance.
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12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
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#4
08-17-2000, 02:51 PM
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Critter, sounds like your vacuum modulator line is not hooked up. BTDT...
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Buzzards gotta eat... same as worms. |
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#5
08-18-2000, 08:28 AM
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if not the modulator or vac source check the govenor for smooth operation. mike
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so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#6
08-18-2000, 03:26 PM
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Ol pinion, Good one - on the Vacuum modulator hose.
__________________
12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
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#7
08-18-2000, 07:44 PM
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Thanks to all. We'll start with the modulator and see what's up.
__________________
12.84 @ 106.89 with street radials. 12.63 @ 108.39 on drag radials. |
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