Coverter Stall Selection
#1
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Coverter Stall Selection
Since I am running a carb LQ4 I thought this would be the section for this.
I am getting my 200-4r redone and am buying a new converter. I have an 03' LQ4, Z06 243 Heads, Edelbrock 2216 cam, Edelbrock dual plane, Holley 800cfm 4150, and Dougs Headers.
Car is a 72' Chevelle with 4.10 gears, posi, and 27.9" tall rear tires.
My tranny builder is not too familiar with LS, let alone carbed LS's so his intial guess is 2000-2500. I am looking for something for a good street car that won't see too much/ if any track time.
Any stall advice for carb'd LS's?
I am getting my 200-4r redone and am buying a new converter. I have an 03' LQ4, Z06 243 Heads, Edelbrock 2216 cam, Edelbrock dual plane, Holley 800cfm 4150, and Dougs Headers.
Car is a 72' Chevelle with 4.10 gears, posi, and 27.9" tall rear tires.
My tranny builder is not too familiar with LS, let alone carbed LS's so his intial guess is 2000-2500. I am looking for something for a good street car that won't see too much/ if any track time.
Any stall advice for carb'd LS's?
#2
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Assuming you don't want it to be a total dog off the line, I'd recommend 2500-3000 stall. I ran a 3k in my 68 with my big block and am kicking myself for not going with more stall in my LQ4 setup even thought the motor is fairly stock for now.
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I have a 3200 lbs car with 4.30's and a 28" tall tire. I am running an lq9 with 243 heads and a single plane with a 750 carb. I have a custom ptc specced converter that stalls to 4k. I called them and gave them my car specs and this is what they recommended. It may be too big if you are going to be doing more cruising since my car is more for the track.
#4
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I have an LQ9 with a TH200R4 and a 3.90 gear. I was really stressing about choosing a converter because I did not want a sloppy, loose, racing converter for cruising around town. After quite a bit of research and a few phone calls, I choose a Circle D 245mm 2B converter (2800-3000). While I just got my car running and I am still finishing up the details, I did drive the car around the lot and I was very pleased at how tight the converter feels at part throttle. I will have a more thorough review some time this week when the car hits the road, but so far thumbs way up.
#5
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Ran a 10" tci super street fighter which was the 3500-3800 rated one, it took 1800 rpm to take off slowly from a light and continue shifting gears up to 45-50 mph. I could not even tell it was there until you really stepped on it. Honestly converter technology has come a long way from the 70s and there are guys(like me) that could daily drive a 4500-4800 stall without issue. They're so tight down low now that it really is a joy to drive.
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Thanks guys, I am leaning more in that 2500-3000 rpm range. Looking at convertors it is a hard call.
The base I am considering is a Hughes 2500 stall for $339 or a Hughes 3000 stall for $439. The TCI in the 3000 stall with lockup (like the Hughes) is about $100 more. I'll have to sleep on it before I order up.
The base I am considering is a Hughes 2500 stall for $339 or a Hughes 3000 stall for $439. The TCI in the 3000 stall with lockup (like the Hughes) is about $100 more. I'll have to sleep on it before I order up.
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Rather than buying an off the shelf converter you could call up a company that custom specs them. That's what I did for my build. I filled out a sheet with weight, gears, trans, engine specs, etc and they custom built a converter for me. It is like having a custom cam ground specific for your application. I bought mine from PTC but I am sure there are other companies that do the same thing if you look around.