tc questions
03-04-2006, 02:19 PM
#1
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tc questions
i am going to be getting my hands on a tci tc...
now i have a few questions...
i believe my car being an 84 and having the original motor still has the same factory year transmission...so the crank pilot should be 1.703?...is this referring to the snout of the tc that slides over the splines on the input shaft?....
the convertor is a 10 inch with an anti balloning plate on it....i think its a super street fighter...it says i have to drill holes for 7/16 bolts....just drill through the flewplate?
i dont have the serial number off the tc atm but i will later today...i think i wrote it down wrong when i looked at the part yesterday
motor is not stock with a cam and full exhaust,carb,intake, shift kit,3.73s and has run to date 14.4@97mph with a 2.3 60ft...i am hoping this helps get the car into the 13s if i can get a good 60, mid 13s
now i have a few questions...
i believe my car being an 84 and having the original motor still has the same factory year transmission...so the crank pilot should be 1.703?...is this referring to the snout of the tc that slides over the splines on the input shaft?....
the convertor is a 10 inch with an anti balloning plate on it....i think its a super street fighter...it says i have to drill holes for 7/16 bolts....just drill through the flewplate?
i dont have the serial number off the tc atm but i will later today...i think i wrote it down wrong when i looked at the part yesterday
motor is not stock with a cam and full exhaust,carb,intake, shift kit,3.73s and has run to date 14.4@97mph with a 2.3 60ft...i am hoping this helps get the car into the 13s if i can get a good 60, mid 13s
Last edited by black84z28-4spd; 03-04-2006 at 07:46 PM.
03-04-2006, 02:36 PM
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Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
Most 84's had a 27 spline input shaft. You need the converter to match the shaft. That converter in the pic does not appear to have an anti balloon plate on it.
03-04-2006, 07:45 PM
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Originally posted by Floor guy
Most 84's had a 27 spline input shaft. You need the converter to match the shaft. That converter in the pic does not appear to have an anti balloon plate on it.
Most 84's had a 27 spline input shaft. You need the converter to match the shaft. That converter in the pic does not appear to have an anti balloon plate on it.
from what i understand about convertors is they will act different for each application...depending of weight of the car and other variations from set up to set up...it will probably flash alot lower
here...i found this...
What remains is stall speed, a very misunderstood term. Stall speed is directly related to the amount of torque your engine produces (the greater torque, the higher the stall speed). For example, a converter with a 2800 to 3200 rpm rating might provide approx. 3200 rpm of stall speed behind the big block making 500-plus lbs of torque and in a small block with less torque it's possible to only have a stall speed of 2800. Without knowing how much torque your engine produces, you cannot know how much stall speed a converter is capable of.
mportant Factors That Affect A Converters Stall Speed
Vehicle Weight
Vane/Fin Angle
Horsepower
Impeller to Turbine Clearance
Powerband/CamShaft
Stator Design
Torque Rate
Converter Diameter
Gear Ratio
These can be some of the biggest questions you have when looking for a converter. The best solution to any of your questions is to speak with a qualified technician at a high quality company.
Last edited by black84z28-4spd; 03-04-2006 at 08:00 PM.
03-04-2006, 07:59 PM
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Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
You're right, less power means it'll flash lower. It'll be super in-effiecient. You need to match the converter to the engine and set up the drivetrain accordingly or else you'll be wasting HP.
03-04-2006, 08:04 PM
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Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
Anti-ballooning plates are also on the top of the converter, around the hub. I see none there.
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03-04-2006, 08:12 PM
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the person selling it mentioned it having it, and its on the flexplate side of the tc
edit:...i guess it doesn't matter because i looked up the part number on tci and its for a 30 spline count 700r4...i have the older version so i am not wasting the cash
it says 1984 1/2...what number would i need to find on the trans to see if i would be able to use it?
edit:...i guess it doesn't matter because i looked up the part number on tci and its for a 30 spline count 700r4...i have the older version so i am not wasting the cash
it says 1984 1/2...what number would i need to find on the trans to see if i would be able to use it?
Last edited by black84z28-4spd; 03-04-2006 at 08:15 PM.
03-04-2006, 08:23 PM
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Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
Some say the 1/2 way through the model year they changed to 30 spline. My atsg manual says it happened late in the model year. I do not know of any way to id the spline count externally. Every 84 I have personally seen had a 27 spline though. Physically counting the input shaft splines are the only way I know of to positively identify it.
03-04-2006, 08:31 PM
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Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
You can check the code on the pass side of the trans, just above the pan. If it starts with any number other than 4 it means it has been swapped out in the past. 4 means 84 model year. You may get lucky and see a 9, or basically any number from 5 and up. That would indicate a later model trans and guaranteeing a 30 spline input shaft. Long shot but worth checking.
03-04-2006, 08:49 PM
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Originally posted by Floor guy
You can check the code on the pass side of the trans, just above the pan. If it starts with any number other than 4 it means it has been swapped out in the past. 4 means 84 model year. You may get lucky and see a 9, or basically any number from 5 and up. That would indicate a later model trans and guaranteeing a 30 spline input shaft. Long shot but worth checking.
You can check the code on the pass side of the trans, just above the pan. If it starts with any number other than 4 it means it has been swapped out in the past. 4 means 84 model year. You may get lucky and see a 9, or basically any number from 5 and up. That would indicate a later model trans and guaranteeing a 30 spline input shaft. Long shot but worth checking.
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the engine matches the car also with the vid on that so i am guessing it still has the original trans, but who knows
03-05-2006, 07:47 AM
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Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
Yep, the book says that it is a 1984, 5.0 f-body trans. Probably the origional one. Maybe you will get lucky and have a 30 spline. The 30 sline stuff is much more common and allows for a bigger selection in the aftermarket.
03-05-2006, 02:23 PM
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Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
That is the julien date. Unfortunately, it will not positively guarantee a 30 spline. My books all list gm's changes by the julien date. Not this time though. It simply says"late in the production year they went to 30 spline"
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