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Old Jan 4, 2011 | 04:21 PM
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Default torque converter difference

I have a LS1 with 4l60 transmission. Engine to make ~400hp. I am thinking a 2400 stall speed. Car will be used as a daily driver (30k/yr), run at the open road races 1-2 times a year and taken to the track 1-2 times a year.

Think a 2400 in the 4L60 would be good on my application?

Also, I was told to get a precision industries vigilantie converter... but they are expensive. I have seen B&M/TCI have some cheaper ones. One guy I know swears by the vigilantie. What should I do or look at?

If the vigilantie is worth it I will spend the money but if its not then I rather not. Kind of looking for the best bang for your buck on the torque converter. I want to finish my project right the first time and not mess with it for a long time after I am finished.
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Old Jan 4, 2011 | 09:18 PM
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Originally Posted by glarior
I have a LS1 with 4l60 transmission.
Engine to make ~400hp. I am thinking a 2400 stall speed. Car will be used as a daily driver (30k/yr), run at the open road races 1-2 times a year and taken to the track 1-2 times a year.

Think a 2400 in the 4L60 would be good on my application?

Also, I was told to get a precision industries vigilantie converter... but they are expensive. I have seen B&M/TCI have some cheaper ones. One guy I know swears by the vigilantie. What should I do or look at?

If the vigilantie is worth it I will spend the money but if its not then I rather not. Kind of looking for the best bang for your buck on the torque converter. I want to finish my project right the first time and not mess with it for a long time after I am finished.
You get what you pay for! PI, Yank, circle D, PTC are all good... there is more to it than just stall. You will also have a lockup style. The tq ratio can also help with drivability. You should expect to pay $400 -600 for 400 hp and then you can sleep at night.
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Old Jan 5, 2011 | 01:30 PM
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I would suggest a 2300ish stall TCI converter for street. Call em', give them your vehicle specs. and have them make you one.
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Old Jan 6, 2011 | 01:20 PM
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Originally Posted by glarior
I have a LS1 with 4l60 transmission. Engine to make ~400hp. I am thinking a 2400 stall speed. Car will be used as a daily driver (30k/yr), run at the open road races 1-2 times a year and taken to the track 1-2 times a year.

Think a 2400 in the 4L60 would be good on my application?

Also, I was told to get a precision industries vigilantie converter... but they are expensive. I have seen B&M/TCI have some cheaper ones. One guy I know swears by the vigilantie. What should I do or look at?

If the vigilantie is worth it I will spend the money but if its not then I rather not. Kind of looking for the best bang for your buck on the torque converter. I want to finish my project right the first time and not mess with it for a long time after I am finished.
Since you have a lower HP motor and rpm I would get a 3000 rpm Vigilante 9.5 inch lockup TC.

You get what you pay for and anybody that tells you to buy low efficiency crap TC's like B&M/TCI is not your friend. the stall speed becomes a mute point with lockup and or highly efficient TC's I've driven around with 3800 stall in my Vette and was happy. Back before I knew better I had a 3000 stall suck *** B&M and my car was always at 3000 rpm unless I actually drove faster. I was glad when it blew out so it gave me a reason to buy something good.

Vigilante's are very efficient

Last edited by gkull; Jan 6, 2011 at 05:31 PM.
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Old Jan 6, 2011 | 04:22 PM
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Originally Posted by gkull
Since you have a lower HP motor and rpm I would get a 3000 rpm Vigilante 9.5 inch lockup TC.

You get what you pay for and anybody that tells you to buy low efficiency crap TC's like B&M/TCI is not your friend. the stall speed becomes a mute point with lockup and or highly efficient TC's I've driven around with 3800 stall in my Vette and was happy. Back before I knew better I had a 3000 stall suck as B&M and my car was always at 3000 rpm unless I actually drove faster. I was glad when it blew out so it gave me a reason to buy something good.

They are very efficient
+1 on everything he ^^^ said.

Remember that 4l60e converters lock up so....don't be afraid to run some stall....not to mention they are efficient if you get a good one. I would run a min of 3000rpm on a stock ls1. Something with a cam in the 230s@.050 I would run a 3400-3600. That would flash to 3800 or so and those cammed motors need atleast that much flash to get good ETs
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Old Jan 6, 2011 | 07:08 PM
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To me time is money. I broke the sprag (shaft impellar) years ago on a cheaper TC and it put metal throughout the tranny. Peace of mind is worth every dollar. So $700 -$1100 in a TC is worth every penny


If you do any power braking with sticky tires you will be glad you bought the best!
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Old Jan 6, 2011 | 07:34 PM
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Since you have a lower HP motor and rpm I would get a 3000 rpm Vigilante 9.5 inch lockup TC.


I am having a 427 LSX with 4L60E and a 3,000 stall vigilante converter. Go with vigilante or yank.

Vigilante hooks/locks like crazy at lower rpms and then at 7,000rpms it's a little loose being about 300rpms difference in input vs output

Yank is exactly opposite being loose at lower rpms but tight at higher rpms.

Vigilante generally produces lower ET and trap speed. The Yank will give you a higher ET and higher trap speed. So the Vigi will launch you out of the hole better but upper rpms it looses grip and suffer trap speed but you are still faster ET wise in quarter mile. yank will launch you more softly but grip/tight in higher rpms resulting in a higher trap speed but slower ET. For street use and running to about 120mph the Vigi is best. If your interested in running only from 60+mph the the yank should serve you better.
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