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01-03-2015, 06:00 PM | #1 |
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Join Date: May 2010
Location: St.Louis
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Torque converter stall ok size with this cam?
Here is the converter specs
JEGS Performance Products#555-60400 GM TH350/TH400 12" Torque Converter 10.75" Bolt Circle Stall Speed: 2300-2700 RPM Here is my setup 355, 9.5:1 cpr, 670 street avenger, rpm air gap, promaxx vortex heads, Howards cam, long tube headers. The truck is a 72 lwb Cheyenne super with th350. Car is a weekend ride, occasionally driven on the street, car shows etc. Head specs ProMaxx Performance#723-2151 Cast Iron Small Block Chevy Vortec Cylinder Headsł Assembled Straight Plug Intake Ports: 185cc Combustion Chambers: 64cc Valves: 2.02" Intake, 1.60" Exhaust Can specs Cam Style:Hydraulic flat tappet Basic Operating RPM Range:2,800-6,400 Intake Duration at 050 inch Lift:231 Exhaust Duration at 050 inch Lift:231 Duration at 050 inch Lift:231 int./231 exh. Advertised Intake Duration:285 Advertised Exhaust Duration:285 Advertised Duration:285 int./285 exh. Intake Valve Lift with Factory Rocker Arm Ratio:0.480 in. Exhaust Valve Lift with Factory Rocker Arm Ratio:0.480 in. Valve Lift with Factory Rocker Arm Ratio:0.480 int./0.480 exh. Lobe Separation (degrees):108 Is that stall speed in the range? I was thinking it would be OK, if not maybe something in the 2200-2400 range? |
01-03-2015, 06:13 PM | #2 |
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Join Date: Dec 1999
Location: Austin, TX, USA
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Re: Torque converter stall ok size with this cam?
It will work, but a 10" 3500 rpm stall would be best with that cam performance wise. Second would be an 11" 2800 rpm converter. I had a TCI 2800 rpm stall 11" with a 228 at .050 cam and even with 4.10 gears it wanted a little more stall. (331 ci motor though, but 3200# car). And cam was on 110 degree lobe centers, so power a little lower down.
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01-03-2015, 06:36 PM | #3 |
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Location: St.Louis
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Re: Torque converter stall ok size with this cam?
3500 stall? Wow I wouiodnt think I would need that big. Again this is no strip truck. Just lighting the tires on the street when need to, and the occasional cruise
But if that is warranted then I guess I will look into those |
01-03-2015, 06:38 PM | #4 |
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Join Date: Aug 2014
Location: Pittsburgh, PA
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Re: Torque converter stall ok size with this cam?
I would think 2800 would be a good choice for that cam. Comp Cams recommends a 2500 minimal stall for there 230/236 cam I am going to be using in my truck.
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01-03-2015, 07:01 PM | #5 |
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Join Date: May 2010
Location: St.Louis
Posts: 644
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Re: Torque converter stall ok size with this cam?
Yea the more I read into it I'm thinking 2500? Increasing engine power has the same effect as decreasing vehicle weight. Since I'm coming from stock 882 heads, stock motor basically I would think it would average out to be in the mid 2000's 2500 or so.
Thoughts? |
01-03-2015, 10:05 PM | #6 |
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Join Date: Apr 2013
Location: Mentone Beach, CA
Posts: 25
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Re: Torque converter stall ok size with this cam?
If your truck is still stock weight expect that stall to operate in its upper range, and should be find for the combination you have.
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