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Stall speeds, mildy modded motor

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Old Mar 17, 2020 | 08:29 AM
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Default Stall speeds, mildy modded motor

Hi guys!

Trying to look for a replacement for my j*nk converter from jegs ( 15% slippage at high speeds).
From googling I've learned that some brands (like TCI are bad too?)
If not I'd buy this converter, although it says circletrack, I don' t think there is anything super special about it? https://www.tciauto.com/circle-track...stall-rpm.html
Atm i'm looking at this converter : https://ftiperformance.com/Economy-S...-TH400-ESR.htm.
But the lowest stall speed is 2600 rpm ( wich probably will be 2400 for my application I think, should make around 300hp).

Is that something thats livable on the street? Or should I keep looking for something lower stall? Cam is the lunati barebones equivalent of a compcam 268H. 214/224 duration @50.

Happy to hear your thoughts!

Last edited by Dusky; Mar 17, 2020 at 08:54 AM.
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Old Mar 17, 2020 | 09:05 AM
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I would contact someone like Andre at Edge Racing converters or a similar vendor. You will pay more but they will build a converter to your car weight, motor, gearing, etc. It is not as simple as buying a converter rated at a advertised stall speed. They will work but maybe not as well as they should.
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Old Mar 17, 2020 | 09:20 AM
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Stock stall on vette is 1800-2000rpm. I found I get a lot of wheel spin even with that (not a good 'hole shot'). I wouldn't go much over 2400 on the street unless you are adding a transmission cooler ahead of the radiator.

Hole Shot 2400rpm converter for TH400: https://www.jegs.com/i/B%26M/130/204...saAiNCEALw_wcB

Hole Shot 3200rpm For TH350 (not TH350C): https://www.jegs.com/i/B%26M/130/204...saAiNCEALw_wcB

Last edited by TedH; Mar 17, 2020 at 09:58 AM.
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Old Mar 17, 2020 | 11:40 AM
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I would think the stock converter would work fine with a 214/224 camshaft.
Just my opinion, I could be wrong.

Good luck,
Jeff
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Old Mar 17, 2020 | 11:41 AM
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Could be, I don't have the stock one anymore though.
Would like to keep it a 10" converter too if possible, I like the responsiveness of the engine with the 10" atm.

cheers
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Old Mar 17, 2020 | 12:03 PM
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Contact Boss Hog converters. They will match you w/ the right converter. Its more than about just engine.
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Old Mar 17, 2020 | 08:46 PM
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I have an FTI convertor I asked for one that didn't slip alot and the seemed to deliver. Mines a 9" 2800 Stahl which is probably more than you may want.im very pleased with FTI.
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Old Mar 18, 2020 | 06:08 AM
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Originally Posted by Dusky
Hi guys!

Trying to look for a replacement for my j*nk converter from jegs ( 15% slippage at high speeds).
From googling I've learned that some brands (like TCI are bad too?)
If not I'd buy this converter, although it says circletrack, I don' t think there is anything super special about it? https://www.tciauto.com/circle-track...stall-rpm.html
Atm i'm looking at this converter : https://ftiperformance.com/Economy-S...-TH400-ESR.htm.
But the lowest stall speed is 2600 rpm ( wich probably will be 2400 for my application I think, should make around 300hp).

Is that something thats livable on the street? Or should I keep looking for something lower stall? Cam is the lunati barebones equivalent of a compcam 268H. 214/224 duration @50.

Happy to hear your thoughts!
There are a lot of factors that go into selecting a converter for the street. Your post is a typical post by someone that chose the wrong converter and then blames the company that made it. If memory severs me you got some good info a while back but chose what some of us told you would not work. Here you are again. watch the video....

Last edited by Gunfighter13; Mar 18, 2020 at 06:15 AM.
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