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Discussion Starter #1
i'm putting together a 557 mustang that will have estimated 850 horsepower and about 700 ft lbs of torque all in a 3000 lbs mustang, which transmission should i use, a powerglide or a c-4? it will be of course strip only that will see it's share in the all motor and bracket classes. i hoping to see 9.00's to high 8.90's ets.
 

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You're at the 3000lb threshold that is the usual go/no go for a powerglide, so it's sort of a toss up. Bracket racing, it's proabably going to be more consistent with the 'glide
 

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Trans

I go with neither of you choices , I run a C-6 , rollerize the planetary's to cut down the parisitic lose , a good trans brake . I run mine in the 7's at 176 mph
Frank
 
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Transmission

I have to go with a Powerglide. YOu can get anything for them. They are simple & light. Plus with a big engine, I believe in getting the car into high gear & let torque move the car. If money is no object I would say a Bruno with a Lenco behind it(Wishful thinking on my part). LOL! What ever trans you decide to run make sure you build it with good parts, put a big cooler on it & change fluid regular. That 4.5" stroke puts a little stress on transmissions.
 

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A glide is cheap, easy to maintain, and parts can be found even on Sunday at the track. A C4 will require lots of big dollar parts to make it live, which won't be for long compared to a Glide. Don
 

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Discussion Starter #7
parts are cheaper for a glide and stronger as well, but which one will et better? i'm running a mini tubbed 97 mustang with ladder bars and 29.5x13.5 slicks; the firewall is currently being moved back 6" to aid in weight transfer. so i don't think that the first gear of the c-4 would be a problem as for traction but i know the glide has less rotational mass and being only 2 gears, it should be more consistent as a bracket car. anymore takes at it?
 

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glide will et better

I had 1.54 60' times with my C-4/trans brake and went to a glide/brake and now have 1.38/1.40 60's and don't worry about breaking the tranny. Chris
 
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Powerglides

I don't care for Chevys but a powerglide is hard to beat. But remeber with 850 HP you have got to put good parts in it. A $750 glide aint going to hold up to all that torque. Talk with the people at Coan,ATI,TCI & they can set you up. I also have a glide for sale on the web site. check it out if you are interested.:D
 

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Don Senkow said:
A glide is cheap, easy to maintain, and parts can be found even on Sunday at the track. A C4 will require lots of big dollar parts to make it live, which won't be for long compared to a Glide. Don

Not to be a smart a$$, what can be replaced at the track on Sunday that a C4 does not have. And a C4 at 3,000 pds, and at 850 horse and 700 pds of torque what makes a glide better, just curious. BZ
 

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At our local track lots of people carry spare glides or parts with them. If you needed a solnoid or a seal or whatever someone will have it. Very few racers will be at your average bracket track with a C4, let alone spare parts. A powerglide is to bracket racing just the same as a 9 inch rearend is. What makes a glide not work at 3000 lbs? It will get you off the line with more consistancy and thats what wins at bracket racing. Don
 

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C4's can take 1000hp properly built. They are also light and very simple. I would wager 90% of the people on this board could take one apart without instructions, and use little instructions to put it back together.

C4 parts are not expensive if you get them off the net, I can give you some links on where to buy them. I built my C4 to PA's 750hp specs and spent a little over $400 including the core.

I am not downing on the glide but lets give the C4 credit, it is not as weak as many people believe.
 

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jpierce55 said:
C4's can take 1000hp properly built. They are also light and very simple. I would wager 90% of the people on this board could take one apart without instructions, and use little instructions to put it back together.

C4 parts are not expensive if you get them off the net, I can give you some links on where to buy them. I built my C4 to PA's 750hp specs and spent a little over $400 including the core.

I am not downing on the glide but lets give the C4 credit, it is not as weak as many people believe.
At the 1000hp mark even the toughest C4's will only last for a handfull of passes w/o a rebuild where a glide will go for a full season or more w/o complaint. The tall 1st gear and wide gear spread will make the car much more tame coming out of the hole and on the shift which both add to consistency. Add that to the fact that a C4 built to the hilt for 1000hp will cost much more than a 'glide at a similar power level is basically stock with a transbrake.
 
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