Can I expect any ET gains with a t-56? I've heard they're geared a little differently so you can go longer in 1rst gear.

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1991 Z28 305 5spd 1LE, TES headers, dual cats, 3 Chamber flowmaster, Comp cams .488/.495 212/218 the usual street racer with a stock chip.
Gained 20HP by porting and polishing my EGR passage.

 

Yes, the 94+ T56 has a 2.66 first gear, while the T5 has either a 2.75 or 2.95 first gear. I really doubt you'd gain any ET just from switching transmissions. The T56 is heavier than the T5, and the lower first gear actually hurts. What you gain is strength.


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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

I lost a bit of time, until I changed the rear gears. I was going through in 3rd until then.

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1992 Pontiac Firebird 350/Six Speed
1987 Toyota Pickup 383/500+ HP

 

Slightly different gear ratios with an extra OD. If you cross the finish line in third gear then why need the extra gears and weight??

That's why I got rid of the 700R4 in favor of a TH350. Better gear ratios, lighter weight, less moving parts and cheaper parts.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block

Best ET on a time slip: 11.242 altitude corrected to 10.69
Best MPH on a time slip: 121.52 altitude corrected to 127.76
Altitude corrected rear wheel HP based on power to weight ratio: 504.5
Best 60 foot: 1.546

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

 

True Stephen, For a Race Only Car



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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver 15.26 @ 87.0
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype