Re: 727 or POWERGLIDE????
[Re: HotRodDave]
#1051117
08/12/11 08:30 PM
08/12/11 08:30 PM
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Joined: Dec 2006
Posts: 3,667 Arizona
Chris'sBarracuda
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Quote:
The powerglide WILL slow you down, maybe a good or bad thing (I always thought the point of racing was to go fast ).
The power glide is cheaper, until you have to go through a dozen converters and 1st gear ratio swaps to get it nearly as fast as the 727.
Just don't run a valve body without LBA and the 727 is bullet proof. You will probably even be able to run a higher gear at the start line unless you are running 1/8th mile. The only reason a glide should be mentioned on a mopar site is by the guys who like to no other reason to recommend one on here
Too bad Monte doesn't post here anymore.. He would strongly disagree, as do I.. ![](/ubbthreads/images/graemlins/biggrin.gif)
Chris.. ![](/ubbthreads/images/graemlins/wave.gif)
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Re: 727 or POWERGLIDE????
[Re: Eric]
#1051120
08/12/11 10:53 PM
08/12/11 10:53 PM
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Joined: Jan 2005
Posts: 12,424 Kalispell Mt.
HotRodDave
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The only reason people have "too violent of a launch" with a 727 is because they run too low of a rear gear, they blame the trans when it was there own choice of rear gear that made too much tq at the rear tires during the launch.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 727 or POWERGLIDE????
[Re: Super Scamp]
#1051121
08/12/11 10:58 PM
08/12/11 10:58 PM
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Joined: Jan 2007
Posts: 728 mi usa
old yeller
super stock
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super stock
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mi usa
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Quote:
Quote:
Quote:
The powerglide WILL slow you down, maybe a good or bad thing (I always thought the point of racing was to go fast ).
The power glide is cheaper, until you have to go through a dozen converters and 1st gear ratio swaps to get it nearly as fast as the 727.
Just don't run a valve body without LBA and the 727 is bullet proof. You will probably even be able to run a higher gear at the start line unless you are running 1/8th mile. The only reason a glide should be mentioned on a mopar site is by the guys who like to no other reason to recommend one on here
Too bad Monte doesn't post here anymore.. He would strongly disagree, as do I.. ![](/ubbthreads/images/graemlins/biggrin.gif)
Chris..
The Power Glide did not slow me down I just keep getting faster and faster.. Consistent is the word . I don't even have to hold a # just run her out the back door..
Dude, could you put a bigger tire on that A body car?
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Re: 727 or POWERGLIDE????
[Re: HotRodDave]
#1051122
08/12/11 10:59 PM
08/12/11 10:59 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Romeo MI
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Quote:
The only reason people have "too violent of a launch" with a 727 is because they run too low of a rear gear, they blame the trans when it was there own choice of rear gear that made too much tq at the rear tires during the launch.
you set the gear for the max rpm that you want to run ![](/ubbthreads/images/graemlins/wave.gif)
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Re: 727 or POWERGLIDE????
[Re: MR_P_BODY]
#1051123
08/13/11 04:56 AM
08/13/11 04:56 AM
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Joined: Jun 2005
Posts: 793 Utah
topbrent
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Utah
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MR_P_BODY you set the [rear] gear for the max rpm that you want to run
^^^^ THIS
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To MrPBody's good advice, I would add only this: - First order of business is you gotta get the converter right.
Regardless of transmission choice, you have to get the engine into its optimal power producing range and keep it there through the shifts. Too tight of a converter will not let the engine rev up quickly and at the shifts it will pull the engine down below that optimal power range which will just simply rob you of ET.
It is said that converter choice is more critical with a powerglide due to 1 less gear and the missing torque multiplication, but if you have the wrong converter in a 727/904 you are also just as likely to go slow.
![](/ubbthreads/images/graemlins/Twocents.gif)
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Re: 727 or POWERGLIDE????
[Re: HotRodDave]
#1051125
08/13/11 12:56 PM
08/13/11 12:56 PM
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Joined: Jul 2006
Posts: 9,366 Lehigh Acres, Florida
rickstershemi
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Lehigh Acres, Florida
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Quote:
The powerglide WILL slow you down, mabey a good or bad thing (I always thought the point of raceing was to go fast ).
The power glide is cheaper, until you have to go through a dozen converters and 1st gear ratio swaps to get it nearly as fast as the 727.
Just don't run a valve body without LBA and the 727 is bullet proof. You will probalby even be able to run a higher gear at the start line unless you are running 1/8th mile. The only reason a glide should be mentioned on a mopar site is by the guys who like to no other reason to recomend one on here
Dave contact: John Urist, Chip Havemann, Sean Lyon, Kieth Szabo....the list goes on and please tell them they are doing it wrong by running glides ![](/ubbthreads/images/graemlins/stirthepot.gif)
Note....this is just a point....nothing personal ![](/ubbthreads/images/graemlins/wave.gif)
Rickster
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Re: 727 or POWERGLIDE????
[Re: HotRodDave]
#1051126
08/13/11 01:39 PM
08/13/11 01:39 PM
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Joined: Nov 2003
Posts: 3,461 Dandridge TN
Dabee
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Dandridge TN
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As for keeping it in the right RPM range at the top end of the track, most guys with glides are way past the sweet spot in the RPM range when they cross the stripe, they have to compromise the top end to improve the launch.
![](/ubbthreads/images/graemlins/down.gif)
I totally disagree. I run a glide in both my RED and door car and both cars cross the stripe in the sweet spot with out compromising the launch. Look at my signature picture and tell me again I’m doing something wrong.
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Re: 727 or POWERGLIDE????
[Re: steeldust]
#1051130
08/13/11 02:58 PM
08/13/11 02:58 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Either trans has its good and bad points... myself I dont like a 2 speed in a heavy car... I like the lower ratio and the added gear but if I want to calm down a launch I would surely go with a 2 speed... you can kill EITHER trans with the wrong converter...I have a brand new glide sitting in the shop with a JW bell for a BB thats going to go up for sale(only reason is I sold off most of my BB stuff and dont need it) ![](/ubbthreads/images/graemlins/wave.gif)
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Re: 727 or POWERGLIDE????
[Re: MR_P_BODY]
#1051131
08/13/11 03:22 PM
08/13/11 03:22 PM
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Joined: Jan 2005
Posts: 12,424 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
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Kalispell Mt.
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Almost every time someone posts how they drive there glide car they say something like they shift at 6000 and cross the line at 7000, the fact in MOST cases is they shift right when they should and cross the line significantly past that same RPM how can the sweet spot be so different from one shift to the next? The truth is it is not and another gear near the finish line would allow MOST cars to accelerate even more before the finish line. All the car cares about at the starting line is the TQ multiplication, a 727 with a 3.23 gear is gonna launch with the same starting lin tq as a glide with a 1.74 1st and 4.56 gear, it is not rocket science, run the right gear to tame the launch and you can still shift at the top end when MOST cars need to. The problem is most guys want to brag about haveing a 4.56 gear, makes up for small .... syndrome, I mean who wants to show up with a hot drag car and tell every one they have a 3.23 gear?
The only worthwhile argument for the glide is that it is a simpler trans. Of course you lose that argument when you have to run adapters and stuff to make it bolt to your motor and car.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 727 or POWERGLIDE????
[Re: HotRodDave]
#1051132
08/13/11 04:57 PM
08/13/11 04:57 PM
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Joined: Jul 2006
Posts: 9,366 Lehigh Acres, Florida
rickstershemi
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Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
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Quote:
Almost every time someone posts how they drive there glide car they say something like they shift at 6000 and cross the line at 7000, the fact in MOST cases is they shift right when they should and cross the line significantly past that same RPM how can the sweet spot be so different from one shift to the next? The truth is it is not and another gear near the finish line would allow MOST cars to accelerate even more before the finish line. All the car cares about at the starting line is the TQ multiplication, a 727 with a 3.23 gear is gonna launch with the same starting lin tq as a glide with a 1.74 1st and 4.56 gear, it is not rocket science, run the right gear to tame the launch and you can still shift at the top end when MOST cars need to. The problem is most guys want to brag about haveing a 4.56 gear, makes up for small .... syndrome, I mean who wants to show up with a hot drag car and tell every one they have a 3.23 gear?
The only worthwhile argument for the glide is that it is a simpler trans. Of course you lose that argument when you have to run adapters and stuff to make it bolt to your motor and car.
Dave maybe you should build yourself a time machine that can take you back to the 60's & 70's and then maybe your argument would be valid ![](/ubbthreads/images/graemlins/stirthepot.gif)
I shifted my glide at 7200 and crossed the stripe at 7500 7.90's - 8.0's didn't need a 3rd gear ![](/ubbthreads/images/graemlins/wave.gif)
Rickster
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Re: 727 or POWERGLIDE????
[Re: rickstershemi]
#1051133
08/13/11 06:37 PM
08/13/11 06:37 PM
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Joined: Jan 2005
Posts: 12,424 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
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Quote:
Quote:
Almost every time someone posts how they drive there glide car they say something like they shift at 6000 and cross the line at 7000, the fact in MOST cases is they shift right when they should and cross the line significantly past that same RPM how can the sweet spot be so different from one shift to the next? The truth is it is not and another gear near the finish line would allow MOST cars to accelerate even more before the finish line. All the car cares about at the starting line is the TQ multiplication, a 727 with a 3.23 gear is gonna launch with the same starting lin tq as a glide with a 1.74 1st and 4.56 gear, it is not rocket science, run the right gear to tame the launch and you can still shift at the top end when MOST cars need to. The problem is most guys want to brag about haveing a 4.56 gear, makes up for small .... syndrome, I mean who wants to show up with a hot drag car and tell every one they have a 3.23 gear?
The only worthwhile argument for the glide is that it is a simpler trans. Of course you lose that argument when you have to run adapters and stuff to make it bolt to your motor and car.
Dave maybe you should build yourself a time machine that can take you back to the 60's & 70's and then maybe your argument would be valid ![](/ubbthreads/images/graemlins/stirthepot.gif)
I shifted my glide at 7200 and crossed the stripe at 7500 7.90's - 8.0's didn't need a 3rd gear ![](/ubbthreads/images/graemlins/wave.gif)
Rickster
You are only proveing my point crossing the line higher RPM than your shift point, not as big a differance as most but still proveing my point ![](/ubbthreads/images/graemlins/thumbs.gif)
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 727 or POWERGLIDE????
[Re: HotRodDave]
#1051134
08/14/11 04:41 AM
08/14/11 04:41 AM
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Joined: Jan 2003
Posts: 4,448 Phoenix, AZ
MoparBilly
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Phoenix, AZ
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Dave, One point you are missing in your comparison is the converter. While the choice seems to be more crtical with a Glide, the glide has much better choices. Converter technology, development and size,(THICKNESS) all favor the glide user.
The shallow bellhousing of a 727/904 limit converter choice in those areas, so the extra gear isn't as much of an advantage.
My 3000 lb A body with a small block, small system, and drag radials has a low gear set 904, and just went from a 9inch turbo action to an 8inch J&W. My 2800 lb. Chally with a big block, big system and 14.5 X 32's has a glide that's seen 2 different gear sets, and 3 different converters. I've spent more money in half the passes on the 904.
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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