Stall talk YANK vs. Viglante
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8 Sec Tuner
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From: Wish I was in a boat fishing...
Stall talk YANK vs. Viglante Ok i have some questions about stalls. Right now in my Impala SS i have a 3600 Vigilante stall. On motor it flashes to about 4400. On the gas it flashes to about 4800-5000 rpms. This converter is very loose. If i switched to a Yank (dont know which one) 4000 rpm stall with no flash will it make my car faster?
Re: Stall talk YANK vs. Viglante Typically, you want your stall speed to be about 400-500 rpms below peak torque of your motor. If your motor makes peak torque at 4500 rpms, you would go faster with a 4000-4100 stall converter. If your motor makes peak torque at 5000 rpms, you would want a 4500-4600 stall.
When your converter stalls above your torque peak, you often lose valuable torque multiplication and efficiency. Basically, the motor is driving through the converter. Yank is a small company, but they are very very good at custom tailoring converters for your specific application. Stall speed is just one of the parameters. Shift extension, stall torque ratio and converter clutch engagement are also very important features you'll want to take full benefit of.
When your converter stalls above your torque peak, you often lose valuable torque multiplication and efficiency. Basically, the motor is driving through the converter. Yank is a small company, but they are very very good at custom tailoring converters for your specific application. Stall speed is just one of the parameters. Shift extension, stall torque ratio and converter clutch engagement are also very important features you'll want to take full benefit of.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Re: Stall talk YANK vs. Viglante I would expect so, but if you have a huge cam, it still may be higher (but doubtful).
Your large motor with a big shot of nitrous is probably a good candidate for a larger 258mm converter. This would have more holding capacity when running on the juice. Something to consider.
Your large motor with a big shot of nitrous is probably a good candidate for a larger 258mm converter. This would have more holding capacity when running on the juice. Something to consider.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
12 Second Truck Club
Joined: Feb 2002
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From: Sacramento, CA
Re: Stall talk YANK vs. Viglante Question.
I currently have a PT-4400 and I am cutting crappy 60's in the high 1.5s or worse lately.
I used to have some defective ARE S2 heads and a 226/234-.554/.575-112 cam. I was making peak TQ right around 4400rpm but it was hard to tell if I could have had more down lower because of the damned high stall on the converter.Now on this combo I would say that I might have been better off with a 4000 stall or so right?
Right now I am doing a combo with GTP S2+ heads (319cfm inatke, 220exhaust @.575) and the Piglet cam 223/.591/112. This setup is supposed to make power pretty high up in the rpm range, peak power being in the 6400rpm area? Will I need to change converters, or should I say, after I dyno, how will I know if I needed a smaller converter if I can't acurately read anything below 4400rpm because thats where my stall flashes to?
I am thinking of having my TC redone to a PT-4000 since that would help out on nitrous too.
Did I confuse the hell out of ya?
<small>[ October 31, 2002, 11:05 AM: Message edited by: F8LPONY ]</small>
I currently have a PT-4400 and I am cutting crappy 60's in the high 1.5s or worse lately.
I used to have some defective ARE S2 heads and a 226/234-.554/.575-112 cam. I was making peak TQ right around 4400rpm but it was hard to tell if I could have had more down lower because of the damned high stall on the converter.Now on this combo I would say that I might have been better off with a 4000 stall or so right?
Right now I am doing a combo with GTP S2+ heads (319cfm inatke, 220exhaust @.575) and the Piglet cam 223/.591/112. This setup is supposed to make power pretty high up in the rpm range, peak power being in the 6400rpm area? Will I need to change converters, or should I say, after I dyno, how will I know if I needed a smaller converter if I can't acurately read anything below 4400rpm because thats where my stall flashes to?
I am thinking of having my TC redone to a PT-4000 since that would help out on nitrous too.
Did I confuse the hell out of ya?
<small>[ October 31, 2002, 11:05 AM: Message edited by: F8LPONY ]</small>
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Re: Stall talk YANK vs. Viglante F8LPONY,
I would keep the converter a PT4400 if you want the best 60' times, but if you plan on running the jug, a reduction in stall to a PT4000 will help you out.
I would keep the converter a PT4400 if you want the best 60' times, but if you plan on running the jug, a reduction in stall to a PT4000 will help you out.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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TECH Apprentice
Joined: Jan 2002
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From: Murphy, TX
Re: Stall talk YANK vs. Viglante </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by F8LPONY:
<strong> how will I know if I needed a smaller converter if I can't acurately read anything below 4400rpm because thats where my stall flashes to?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">How about pulling with it locked up?
<strong> how will I know if I needed a smaller converter if I can't acurately read anything below 4400rpm because thats where my stall flashes to?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">How about pulling with it locked up?
FormerVendor
Joined: Feb 2002
Posts: 430
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From: Falkner, MS
Re: Stall talk YANK vs. Viglante Mike Texass,
You could send your Vig back to Precision and have it restalled. I recommend a #6 impeller (like the Vig3200). That would make the converter more driveable and more efficient on the big end.
Kevin
You could send your Vig back to Precision and have it restalled. I recommend a #6 impeller (like the Vig3200). That would make the converter more driveable and more efficient on the big end.
Kevin
