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Author
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Topic: World Class T5 vs. Tremec TKO - 65 stang
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65racecoupe
Journeyman Posts: 88
From: Layton UT,
Registered: May 2002
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posted 01-14-2003 01:35 AM
   
Will a World Class T5 hold up behind a 400 to 430 horse 316 or 331 stroker engine?Is it worth it to raise the transmission tunnel to fit the TKO (and is it necessary to do so)? I have the TKO in the box, but I am able to trade if straight up for a WC T5 and a pro 5.0 shifter.
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Pierre
Gearhead Posts: 350
From: France
Registered: Apr 2002
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posted 01-14-2003 11:16 AM
quote:
Originally posted by 65racecoupe:
[B]Will a World Class T5 hold up behind a 400 to 430 horse 316 or 331 stroker engine?[B]
I remember the world class T5 being rated for 330ft/pound max torq, which you will definately exceed with these hp figures 
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MrWesson22
Gearhead Posts: 1092
From: Dacula, GA
Registered: Sep 2000
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posted 01-14-2003 02:17 PM
Besides that, the TKO is worth a lot more money than a world class t5. Stick with the tremec. 
------------------
Neal 69 Gulfstream Aqua Grande
351C/4sp
https://mustangsandmore.com/ubb/MrWesson22.html
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65racecoupe
Journeyman Posts: 88
From: Layton UT,
Registered: May 2002
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posted 01-14-2003 02:17 PM
Do any of you have either of these transmissions in a 65 - 66 coupe.I have heard people running 10s in a 5.0 with a WC T5. I have also heard of them blowing up under a decent ammount of HP. I am sure they can handle more than the rating, but how much. I would love the TKO to be a straight up install, but it seems not to be. Any Help?
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65racecoupe
Journeyman Posts: 88
From: Layton UT,
Registered: May 2002
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posted 01-14-2003 02:21 PM
I am only worried about the installation. Has anyone raised the transmission tunnel. That is what I really think I have to do. Otherwise, the tranny is too tall which means it hangs too low, making the engine tilt back a noticable 6 degrees and messes up the driveshaft angle. I would love to have the TKO in my car, but I don't want to pay 2000 to put it in. Any thoughts.
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indyphil
Gearhead Posts: 404
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 01-14-2003 02:36 PM
I dont know much about transmissions but...
surely if they are rated for torque then Hp does not matter. A 400hp 289 engine is making its torque at higher RPM hence the higher Hp, but the peak torque is not much higher than a mild motor (300-330ftlbs).Now when you stroke an engine that WILL increase the torque significantly. a 331 stroker might go to about 380 ft lbs? I would have thought that the gearbox really cares about peak torque (not Hp) and how cleanly you shift it. In which case a T5z might work fine for a 302-331 inch motor. But then I am probably wrong.
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Daniel Jones
Gearhead Posts: 430
From: St. Louis, MO
Registered: Aug 99
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posted 01-14-2003 04:36 PM
Didn't we already discuss this once or twice? I have a TKO in my '66. No tunnel work needed with the cross-member I used. You do need to get the transmission output parallel to the rear end input. Wedge shaped shims are made to rotate the axle housing to accomplish this. Dan Jones
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Daniel Jones
Gearhead Posts: 430
From: St. Louis, MO
Registered: Aug 99
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posted 01-14-2003 04:45 PM
By the way, I have an X-code T5 with 2.95:1
first gear. I'd gladly trade you for the Tremec TKO. Dan Jones
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ccode67
Gearhead Posts: 1348
From: douglasville,ga,usa
Registered: Mar 2001
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posted 01-15-2003 07:54 AM
If you already have the TKO, use it.
I have a z-spec T-5 in my 67 with 351, it is holding up fine so far, the main thing with a T-5 is having a good shifter with overtravel stops adjusted correctly to prevent bending the shift forks.------------------
Stuart
MCA #48902
M&M #1091
67 stang 5 speed, 351W,
Edelbrock Performer RPM package http://www.mustangsandmore.50megs.com/ccode67.html
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