Powerglide vs. TH350 - Page 2

Greg Hill · 05-20-2009, 06:20 AM

A good 3 speed trans will be faster in almost anything. The heavier the car the more difference it will make. Jack is right that in some instances you may have to make other changes to get the most benefit. Why do you think that all of the fast SS cars are now running 3 speeds?

63corvette · 05-20-2009, 08:48 AM

The weight of the vehicle is the issue and 3000 lbs seems to be the approx break point.
Most of the stock and super stock cars are in excess of that 3000 lbs and can benefit from the 3 speed as long as rotating weight inside the trans is limited.
My 2 Cents

buzzinhalfdozen · 05-20-2009, 09:31 AM

Seems to make sense that if you have plenty of power the glide would be fine. However I'd have to believe the gear ratio benefit is what makes the difference. Try taking off in second gear on your bike then first gear, it's hard to beat mechanical ratios when your power to weight ratio is low. Joe

05-20-2009, 06:20 AM	#11
Greg Hill VIP Member Join Date: May 2006 Location: Louisville , KY Posts: 1,995 Likes: 68 Liked 279 Times in 68 Posts	Re: Powerglide vs. TH350 A good 3 speed trans will be faster in almost anything. The heavier the car the more difference it will make. Jack is right that in some instances you may have to make other changes to get the most benefit. Why do you think that all of the fast SS cars are now running 3 speeds? __________________ Greg Hill 4171 STK

05-20-2009, 08:48 AM	#12
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 551 Likes: 127 Liked 353 Times in 102 Posts	Re: Powerglide vs. TH350 The weight of the vehicle is the issue and 3000 lbs seems to be the approx break point. Most of the stock and super stock cars are in excess of that 3000 lbs and can benefit from the 3 speed as long as rotating weight inside the trans is limited. My 2 Cents

05-20-2009, 09:31 AM	#13
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: Powerglide vs. TH350 Seems to make sense that if you have plenty of power the glide would be fine. However I'd have to believe the gear ratio benefit is what makes the difference. Try taking off in second gear on your bike then first gear, it's hard to beat mechanical ratios when your power to weight ratio is low. Joe __________________ Joe Buchanan SS/BX 3117

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