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Author Topic:   Powerglide VS Manual
hobby10k
Dirt Freak

Total posts: 226
posted January 09, 2005 03:13 AM  
Ok I am wodering if there are any benefits of running a powerglide over Sag? does it reduce and rotating weight running it direct? dont know much about powerglide, always used clutch.

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racer17j
Dirt Forum Champ
Total posts: 5390
posted January 09, 2005 08:43 AM  
Ive got both 2 3speeds and a glide, I have also ran both of them, my preference would be the 3speed althought the lighter of the 2 would be the glide, im starting out this next year with the glide have never ran it on dirt did perform real well when it was on asphalt, there are advantages and disadvantages to both. Eddie

tweiii
Dirt Roller

Total posts: 10
posted January 09, 2005 11:06 AM  
I have ran the pg with no converter. If they are built with good parts and your drive shaft is balanced I have not had many problems. They usually only break in crashes or if something is not right.

The Flash32
Dirt Maniac

Total posts: 120
posted January 09, 2005 11:12 AM  
I have never understood why you would want to pull a racecar with tranny fluid when you can pull with gears? I only go with a 3 sp. Saginaw in high gear, more responsive off turns & quicker!

racer17j
Dirt Forum Champ
Total posts: 5390
posted January 09, 2005 12:17 PM  
i toasted 2 powerglides this year... three speed for me

Raz_900
Dirt Forum Champ
Total posts: 635
posted January 09, 2005 02:49 PM  
After having 4 stock cases fail (1 was cracked when it was put in) I bought a Deadenbear PG case. Ya, it's $900, but each DNF is a waste of $150 (entry fee, fuel, food blah blah) it's not all that bad. Been together for over a year and a half with parts that are nearing 3 years old. I'll finally pull it apart this spring to go through it and replace the clutches.

Reason PGs fail:

- stock cases are very weak
- lack of fluid capacity burns them up if a cooler and/or deep pan isn't run. I run 2 B&M 3/4" thick coolers in series and a +2 qt aluminum pan.
- Run in low gear
- stock valve body

And a 3spd and 4spd can fail just as easily. I've seen 2 fail catastrophically where they locked the rear wheels up and sent the car into the wall. I've also seen plenty of broken 3spd cases (my partner broke 2) and 4spds as well. All comes down to how it's put together, both internally and the straightness in the car. Taking a 20 year old tranny out of a pickup and throwing it in a racer is an accident waiting to happen.

There's pro's and con's to both. Comes down to what you're comfortable with and what $$$ amount you're willing to spend. A PG will cost more to make right, but I've NEVER been beaten on a restart. Even when I've been outgunned by 100+ hp. Bog 'em down to 3000 in low for me (about 2000 for them), nail it, click the shifter up at 6500 and I'm 3-8 car lengths ahead on he start. Don't care how good you are, you can't shift a manual as fast as a good valve body can shift an auto. After the start, I think they're both the same. Although, in really heavy traffic, having a convertor in my PG gives a little more flexibility powerwise without having to take my hands away from the wheel to shift and get the rpms up.

stockcar5
Dirt Forum Champ
Total posts: 578
posted January 09, 2005 04:47 PM  
i've never broke a 3 speed. seen to many pg's take a dump. powerglides are lighter but they take more power to spin, even with a direct hookup and no convereter. if you gotta spend 900$ to keep a powerglide alive its not worth it to me.

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bubba0six
Dirt Maniac

Total posts: 146
posted January 09, 2005 07:52 PM  
i dont leave home without it. i love my glide. 1 full season on it so far no problems (stock case)

hobby10k
Dirt Freak

Total posts: 226
posted January 10, 2005 01:59 AM  
Yea looks like I wont even think about going to a PG. I am just always open to try something if it might help. $900 is a little much for a tranny for me, heck my engine didn't cost much more than that LOL

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mansfief
Dirt Maniac

Total posts: 128
posted January 10, 2005 09:04 AM  
I wish every one ran 3 speeds, then I would have the edge on all of them. Powerglide people, please don't give out any more secrets.

Donnie Ross
Dirt Freak

Total posts: 264
posted January 10, 2005 06:16 PM  
ok

Donnie Ross
Dirt Freak

Total posts: 264
posted January 10, 2005 06:24 PM  
serously if a glide can take a big blocks tourque in a 4000 lb car or a top alcohol dragsters horsepower(granted aftermarket case and internals here) what makes you think it is the trannys fault when it fails behind a small block on dirt with limited traction? 90% of the failures I have had have been my fault not the tranny's such as dowel pins to short cracking cases. use solid trans mount once(duh)same result a glide is a good tranny but you can mess it up. usually the fault of the builder or installer not the design.

Raz_900
Dirt Forum Champ
Total posts: 635
posted January 10, 2005 11:42 PM  
quote:
Originally posted by mansfief:
I wish every one ran 3 speeds, then I would have the edge on all of them. Powerglide people, please don't give out any more secrets.

The people that run 3 speeds around me usually switch to a 4 speed (minues 1st and 2nd) or a auto (TH350 or a PG). When we first started (and my partner was driving) he had the chance to be on the pole a few times our first season. We were easy 50-150 HP down on everyone. One of the winning drivers at the track came over to us later that year and said "I've been doing this for a while and I've NEVER had someone leave me like that on a start. You just disappeared."

[This message has been edited by Raz_900 (edited January 10, 2005).]

hobby10k
Dirt Freak

Total posts: 226
posted January 11, 2005 02:01 AM  
Sounds like it could be a good thing, but with all the people breaking them, seems a little sketchy. now is the only way to go on PG with aftermarket case? I might look a litte more into this

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TCI
Dirt Forum Racer

Total posts: 87
posted January 11, 2005 10:29 AM  
The 2 most common reasons powerglides break is; drive shaft to long and/or the coupler has no clearance. These things have to be correct, just like with anything else on a race car. And as long as those 2 things are overlooked there will always be case breakage.

stockcar5
Dirt Forum Champ
Total posts: 578
posted January 11, 2005 11:01 AM  
another thing to think about is if/when your pg does fail can you afford to dish out another 700$ (or much more if you run an aftermarket case) for a new tranny? thats the one thing i do like about the manual is if needed you can go to the junkyard and get a good working one for 50-75$. i did that a few years ago and the junkyard trans ran for 3 yearsso far!
if your looking to spend the money, look into the low drag muncies that layne has. they look like a nice piece..but im sure they are spendy!

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HONDO
Dirt Full Roller

Total posts: 47
posted January 11, 2005 01:18 PM  
Hey Josh, when they going to let you come home? I wouldn't shy away from the automatics, but you already have a good stick, run it. I personally have never raced a manual tranny in 14 years of racing. The th350 in my old hobby car ran for 5 seasons. We bought it out of the wrecking yard for $50 and put a new converter and oil in it. Its now out there in another car and still hasn't been touched. Is this normal? Probably not, but I now have a direct drive PG in my mod that has 3 seasons on it without being touched. We change oil (good oil) once a year, run deep aluminum pans, and no cooler at all. It's generally real cool where we race and its only 20 laps. Good luck, and keep your head down.

hobby10k
Dirt Freak

Total posts: 226
posted January 13, 2005 01:38 AM  
Hey Greg, well we might be coming home at the end of Feb. But who knows how long that will last, they seem to extend everyone that is over here. I hope in Feb cause that will give me a little time to work on the car.
Well I most likely will run the 3 speed that I have, just trying to figure out if it would a good enough advantage to go to a PG.
well good luck Next year, I have some lost time to make up for.

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