stall rpm of stock converter?

calpolymustang

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Feb 1, 2004

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Santa Rosa, CA

May 28, 2004

#1

• May 28, 2004

• #1

whats the stall rpm of a stock '66 c4 converter?

 

rbohm

Founding Member

Apr 12, 2002

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tucson,az

May 28, 2004

#2

• May 28, 2004

• #2

iirc it is around 1500-1800 rpm.

 

J

jesserose17

New Member

Aug 21, 2003

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Southern CA

May 28, 2004

#3

• May 28, 2004

• #3

I think you might be able to tell the stall rpm by holding brakes and press gas, see where the rpm tops out.

 

302 coupe

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Mar 2, 2000

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Macon, Ga.

May 28, 2004

#4

• May 28, 2004

• #4

stall depends on the engine its behind, if its behind a stock 2bl 289, you might get 1400 out of it, if it were behind, say, a 351, it may stall at 1800 rpm.

 

Edbert

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Jul 13, 2002

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Austin TX

May 28, 2004

#5

• May 28, 2004

• #5

I've always heard 1400-1600, but that seems to basically agree with what others have answered. That put the stall right in the heart of the stock torque curve

 

Great68

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May 16, 2002

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Victoria BC

May 28, 2004

#6

• May 28, 2004

• #6

Does a higher stall convertor allow a car with a lumpy cam idle better when the tranny is in gear?

I can get my car to idle great when it's in park or neutral, but when I put it in gear it will stall out (unless I put an obscene amount of initial timing into it).

 

J

jesserose17

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Aug 21, 2003

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Southern CA

May 28, 2004

#7

• May 28, 2004

• #7

I would raise the idle rpm to where it wouldn't stall while in gear.

 

88 Fox GT

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Nov 18, 2002

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Iowa

May 28, 2004

#8

• May 28, 2004

• #8

I've always heard stockers are usually around 1600 - 1800 RPM.

Great68, yes, a higher stall speed will allow your engine to idle better (with a bigger cam) in gear.

 

Great68

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May 16, 2002

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Victoria BC

May 28, 2004

#9

• May 28, 2004

• #9

jesserose17 said:

I would raise the idle rpm to where it wouldn't stall while in gear.

Click to expand...

If I do that, my car would idle at 1500-1800 rpm out of gear.

 

J

jesserose17

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Aug 21, 2003

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Southern CA

May 28, 2004

#10

• May 28, 2004

• #10

Great68 said:

If I do that, my car would idle at 1500-1800 rpm out of gear.

Click to expand...

In that case, you would benefit with higher stall converter then.

 

Great68

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Victoria BC

May 28, 2004

#11

• May 28, 2004

• #11

It used to be Ok with my old motor combo, but with the new heads and intake and everything, it has a harder time.

 

Edbert

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Austin TX

May 28, 2004

#12

• May 28, 2004

• #12

Idle speed is controlled by your carb. A stock 289 would idle at about 700RPM even though the stall was rated for ~1500. I have a 2800 stall in mine but that does not have anything to do with idle speed. In all but the most extreme setups idle speed will be well below stall speed, and putting the car in gear should not have a significant effect on idle RPMs. If your new cam causes your car to idle roughly while in gear I suggest opening up the venturi a little bit. This will cause it to idle at what seems to be a high RPM while in park or neutral but that is what you need to do with racier cams.

 

kslushy

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Jan 25, 2002

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May 29, 2004

#13

• May 29, 2004

• #13

offtopic:

Calpolymustang: I envy you, SLO is such a nice town. I go there every chance I get to visit my friend (as well as Maximum). I even wear an SLO shirt despite going to LMU