Re: street converters-what is the criteria?
[Re: Sport440]
#2483240
04/15/18 07:46 PM
04/15/18 07:46 PM
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Joined: Dec 2013
Posts: 4,674 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,674
Wichita
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I had a very similar combo and use a Turbo Acton 2800 stall 11".
Still use the same converter but with more cubes and more head.
Keep the 850 Demon.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: street converters-what is the criteria?
[Re: rbkt65]
#2483272
04/15/18 09:00 PM
04/15/18 09:00 PM
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Joined: Jan 2003
Posts: 10,000 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,000
Frostbitefalls MN (Rocky&Bullw...
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Your rear gear may be too tall. You have BIG tires on the back, and slippage in the converter might negate the tall gear and just slip more. The wagon will weigh plenty and add to the problem of slippage. A 4.10 might be a better choice considering your combo. The cam duration and single plane might not want to cruise well with the 3.55 either. Best to talk to a converter builder, and someone that can steer you right on the minimum cruise rpm. You might want to consider an RPM intake forthis combo.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: street converters-what is the criteria?
[Re: rbkt65]
#2483359
04/15/18 11:05 PM
04/15/18 11:05 PM
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Joined: Feb 2011
Posts: 1,454 Glendora Ca.
Just-a-dart
pro stock
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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Most of those charts do not account for any converter slip. Real life can be quite different in my experience, it's something else to talk over with your converter guy.
"Just a Bracket car dressed up like a streetcar"
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Re: street converters-what is the criteria?
[Re: rbkt65]
#2483372
04/15/18 11:50 PM
04/15/18 11:50 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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With the RPM you are trying to run it would be a tight conv.. if its slipping it will build heat unless you are above the RPM the conv is set up for.. I run a 4600 stall with OD and it slips 8% when in OD.. its not bad at 75 MPH but its still slipping
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Re: street converters-what is the criteria?
[Re: topside]
#2483374
04/15/18 11:54 PM
04/15/18 11:54 PM
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Joined: Dec 2013
Posts: 4,674 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,674
Wichita
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GY3, what's the part # on your converter? In 11", TA's website only shows 3000 & 3600 stalls. 2800 would be ideal for a project I'm working on.
I've called several converter companies and no 2 seem to agree on anything, but a few claim to build each others' converters; mostly they seem to be race-oriented and only one could grasp a 2800 cruise RPM. I see a lot of bad reviews for the more popular companies, but of course they don't indicate if the review writer mis-applied the unit or somehow screwed it up.
Rbkt, a 3.54 with a 33" tire will be a really tall "final" or "effective" ratio. That 271 degrees, is that advertised or @ .050? I've run 31" with 3.55s (4-speed) which was nice all around, 446" RB/63 Savoy wagon; 4.10 with 31" 3000 stall behind a hot street/strip 446"/64 Savoy wagon was kinda busy over 65. I honestly don't know. It's been a long time since I bought it and didn't keep the paperwork.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: street converters-what is the criteria?
[Re: rbkt65]
#2483375
04/15/18 11:56 PM
04/15/18 11:56 PM
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Joined: Jan 2003
Posts: 20,784 A collage of whims
topside
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,784
A collage of whims
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OK, small & torquey cam then. I'll second or third the recommendation on Perf RPM intake. Had a markedly larger cam in the '64 I referred to, and 3000 stall was fine in it. I wasn't chasing the last .10 in ET, but was driving it on the street and it wasn't lazy anywhere, but could destroy street tires anytime you hit the fun pedal. By contrast, the 3500 stall 9.5" - supposedly a PTC, but they claim no record of it - in this BB Duster is lazy as heck below 3000. 237/242 @ .050, 110CL, .544/.541 in a 512, 3.55s, 28" tire. Not what I'd call a big cam for 512", I should think 2600-2800 stall to enjoy the mid-range torque. But Sport440 & 383man have very different experiences. As far as charts, some have 5% added for slip, some don't.
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