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Author Topic:   powerglide or 350 turbo?
fastestmike
Member
posted March 21, 2004 06:04 PM
Just wondering which would be better, class rules say automatic transmission with working converter min 10". any info greatly appreciated. thanks,mike


racer17j
Member
posted March 21, 2004 06:27 PM
i don't like glides myself had to many problems with then in my uncles mod and getting harder and harder to find and when you do they are big $$$$$$$$$$ t-350's are everywhere takes a little more power to run um but i think they are a more reliable piece. but thats just me i would rather run 3rd for 20 laps then first for 5 and watch the other 15


WesternAuto17
Member
posted March 22, 2004 07:34 AM
The glide's a lot lighter, but getting harder every day to find. When did GM roll the last one out? Wasn't like 1970?

Seems to me that if you have to run an automatic and a converter, than the few benefits of a glide might not be worth the expense for your application. Turbo 350's are a dime a dozen, just stay away from turbo 400's and turbo 250's.

Raz_900
Member
posted March 22, 2004 09:03 AM
The alum. case glide was made from 63-76. There's still quite a few out there if ya look around. No one things to look behind 6 cyl. cars.

The weight savings of a glide over a TH350 will be apparent on every restart. There's a few guys that run TH350's in my class and I jump them just like the manual cars in restarts.

A glide with a good convertor and valve body is worth 2 car lengths on every restart. Just make sure you get the right driveshaft length and alignment. The stock metric driveshaft LOOKS like it will work but is really 1" too short (at least my '86 TH200 and '81 TH350 shafts) and will help break cases every couple weeks.

WesternAuto17
Member
posted March 22, 2004 10:14 AM
Are the 6 cylinder P-glides strong enough? I put a Turbo 350 (actually a 250 in a 350 case) out of a straight six Nova behind a mild street engine. Poeple told me it wouldn't last under the V-8's torque (even though it had very low miles) and they were right. It burned up after 3 months.

A Power glide is definately a better automatic, but I wonder if, on a Hobby stock type car, money can't be better spent in other places.

robhbk24
Member
posted March 22, 2004 02:30 PM
quote:
Originally posted by robhbk24:
i used a metric for a few seasons with no problems . i'm switching to the pg this year though. i have a driveshaft question though. is my current drive shaft going to be long enough i assumed that the trannys were the same length. anybody know


My car originally came with the metric OD tranny ('86) and the shaft was 1" too short. They make a longer yoke that will work or you can have a new shaft made. My new one was $110 with new joints, yoke and heavy wall tubing.


Raz_900
Member
posted March 22, 2004 02:48 PM
quote:
Originally posted by WesternAuto17:
Are the 6 cylinder P-glides strong enough? I put a Turbo 350 (actually a 250 in a 350 case) out of a straight six Nova behind a mild street engine. Poeple told me it wouldn't last under the V-8's torque (even though it had very low miles) and they were right. It burned up after 3 months.

A Power glide is definately a better automatic, but I wonder if, on a Hobby stock type car, money can't be better spent in other places.


I believe all the 6cyl glides were the 1.82 gearset. The bigger motored cars got the 1.76 gearset. The 1.82 gearset uses a stamped planetary and the 1.76 uses a heavier cast housing. But, for circletrack, the 1.82 is more than adequate since it will never see high traction launches like a drag car. I think there's aftermarket 1.6ish gearset too.



gahainsey
Member
posted March 23, 2004 06:51 AM
The 1.86 carrier was used in low horsepower V8s also 307 etc.


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