Torque Convertor question - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 10 Old 07-06-2009, 11:54 PM Thread Starter
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Torque Convertor question

I'm in the process of building a turbo car, 76mm 331 with a PA Super comp C4 I'm hoping to make 700+rwhp and was wondering what I should use for a convertor? Will be running a transbrake, I know i should dyno it first to see what it makes but I have access to an ATI 6500 stall (tight 8 inch)...coming out of a N/A car making 700rwhp! I have some general knowledge on convertors but need some help!
Thanks


92 Lx hatch, 331
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post #2 of 10 Old 07-07-2009, 06:37 PM
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do yourself a favor and call Lenny at UCC. I don't think anything with an NA6500 stall is going to work behind a turbo motor. I'd bet you would blow right through it. I would think you would need something in the 9" range..depending on the power you plan on making you may need a 10"


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post #3 of 10 Old 07-07-2009, 07:00 PM Thread Starter
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do yourself a favor and call Lenny at UCC. I don't think anything with an NA6500 stall is going to work behind a turbo motor. I'd bet you would blow right through it. I would think you would need something in the 9" range..depending on the power you plan on making you may need a 10"
Thanks! Doing a little more resarch I'm thinking more towards a 4500stall 9....I will give Lenny a call!

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post #4 of 10 Old 07-08-2009, 01:16 PM
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ptc (ptcrace.com) is another good place. they got a handle on the turbo converters.

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post #5 of 10 Old 07-08-2009, 01:32 PM Thread Starter
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ptc (ptcrace.com) is another good place. they got a handle on the turbo converters.
Thanks

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post #6 of 10 Old 07-09-2009, 11:10 AM
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ptc (ptcrace.com) is another good place. they got a handle on the turbo converters.
+1
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post #7 of 10 Old 07-09-2009, 05:18 PM
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Call Lenny. It will not be cheap but it will work like it should.

Your combo is much like mine. I have a 9" converter with a 600+rwhp vortech car. I left it in with the new turbo. Stall with the blower was 2500. With the turbo it was 5500 on the dyno. On the trans brake and 18# it was free reving past 5800 when I let off the gas. A turbo motor makes so much torque that a N/A converter will act totally different. Torque will make a converter stall more. Lenny will explain it to you. But basically you need fluid to control the coupling of the converter. A 8 & 9 inch unit just doesn't have enough fluid or fins to make it work. The 10" unit will also help load the converter better.

Give Lenny a call. You will be glad you did.

Mike 1986 Capri street car w/ a/c, p/s & p/w
Custom built T6 80mm s400sx based kit Shaunthony's built (Twin Trouble and Anthony Fury)
9.31 @ 146 1.39 60' on drag radials @ 3735# Kurgan tuned AEM EMS
80mm 718rwhp new 88mm 921rwhp No new track times yet
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post #8 of 10 Old 07-09-2009, 05:34 PM Thread Starter
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Call Lenny. It will not be cheap but it will work like it should.

Your combo is much like mine. I have a 9" converter with a 600+rwhp vortech car. I left it in with the new turbo. Stall with the blower was 2500. With the turbo it was 5500 on the dyno. On the trans brake and 18# it was free reving past 5800 when I let off the gas. A turbo motor makes so much torque that a N/A converter will act totally different. Torque will make a converter stall more. Lenny will explain it to you. But basically you need fluid to control the coupling of the converter. A 8 & 9 inch unit just doesn't have enough fluid or fins to make it work. The 10" unit will also help load the converter better.

Give Lenny a call. You will be glad you did.
Thanks for the input, are you running injection or blow through?

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post #9 of 10 Old 07-09-2009, 05:45 PM
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Thanks for the input, are you running injection or blow through?
Fuel injection. AEM EMS to control it.

Mike 1986 Capri street car w/ a/c, p/s & p/w
Custom built T6 80mm s400sx based kit Shaunthony's built (Twin Trouble and Anthony Fury)
9.31 @ 146 1.39 60' on drag radials @ 3735# Kurgan tuned AEM EMS
80mm 718rwhp new 88mm 921rwhp No new track times yet
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post #10 of 10 Old 07-09-2009, 06:06 PM Thread Starter
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Fuel injection. AEM EMS to control it.
Pm me your setup if you wouldn't mind! What size of inj? I just spec'd out a cam would like to know your opinion!


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