Powerglide vs. TH350

hbps1978 · 05-18-2009, 07:45 PM

sst1226 - I've 1/8" mile bracket raced for several years and I've seen several of my buddies over the years swap from a TH350 to a Glide and anyone who did instantly picked up .15 just in the 1/8" mile with a Glide.

There is less rotating mass with a Glide than a Turbo. Most anyone who has gone quicker with a basic Turbo versus a Glide has had the wrong converter / differential gear ratio in their car to start with.

Good luck with your car.

richie 2 · 05-19-2009, 07:22 AM

so a PG will produce quicker et in a 2600lb. SS/GT car?

Jack McCarthy · 05-19-2009, 08:09 AM

dont plan on bolting in .15 ...
plan on changing rear gear, and probably converter to get full benefit (if any)

3000 lbs and 500hp the glide will be DAMN near as fast, and cheaper

jack mccarthy... just swapped one in march
p.s have 208 & 198 lite glides for sale

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

05-18-2009, 07:45 PM	#1
hbps1978 Junior Member Join Date: Apr 2009 Location: Bristol Va Posts: 19 Likes: 0 Liked 0 Times in 0 Posts	Re: Powerglide vs. TH350 sst1226 - I've 1/8" mile bracket raced for several years and I've seen several of my buddies over the years swap from a TH350 to a Glide and anyone who did instantly picked up .15 just in the 1/8" mile with a Glide. There is less rotating mass with a Glide than a Turbo. Most anyone who has gone quicker with a basic Turbo versus a Glide has had the wrong converter / differential gear ratio in their car to start with. Good luck with your car.

05-19-2009, 07:22 AM	#2
richie 2 Senior Member Join Date: Feb 2009 Posts: 971 Likes: 426 Liked 205 Times in 93 Posts	Re: Powerglide vs. TH350 so a PG will produce quicker et in a 2600lb. SS/GT car?

05-19-2009, 08:09 AM	#3
Jack McCarthy VIP Member Join Date: Feb 2002 Location: lyndon ky. ... louisville area Posts: 1,322 Likes: 29 Liked 477 Times in 117 Posts	Re: Powerglide vs. TH350 dont plan on bolting in .15 ... plan on changing rear gear, and probably converter to get full benefit (if any) 3000 lbs and 500hp the glide will be DAMN near as fast, and cheaper jack mccarthy... just swapped one in march p.s have 208 & 198 lite glides for sale __________________ Jack McCarthy 3609 STK "the Captain"

05-20-2009, 06:20 AM	#4
Greg Hill VIP Member Join Date: May 2006 Location: Louisville , KY Posts: 1,995 Likes: 69 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	#5
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 552 Likes: 128 Liked 359 Times in 103 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	#6
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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