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Re: 727 sfi case [Re: AndyF] #3265592
10/21/24 03:06 PM
10/21/24 03:06 PM
Joined: Jan 2003
Posts: 19,586
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
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Joined: Jan 2003
Posts: 19,586
Las Vegas
Originally Posted by AndyF
It is a tough sell for the aftermarket. The PG and TH have become so popular that it is hard to compete with them. The 727 doesn't really do anything super special, and they are expensive to build for high powered cars.


Gear selection is the reason people choose to run a TF.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: 727 sfi case [Re: AndyF] #3265596
10/21/24 03:24 PM
10/21/24 03:24 PM
Joined: Apr 2022
Posts: 199
Kansas
T
Thelma133 Offline
member
Thelma133  Offline
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T

Joined: Apr 2022
Posts: 199
Kansas
Sfi cert was 500$ just to come look at the design. I have no idea what final certification would cost to have the final sfi sticker on it. I’m having one made with 5 layers of Kevlar. I plan to test it with numerous fire arms to see if it penetrates. Far superior to the stroud junk I have on my current torqueflight.

Re: 727 sfi case [Re: Thelma133] #3265653
10/21/24 06:57 PM
10/21/24 06:57 PM
Joined: Mar 2006
Posts: 10,020
MI, usa
dvw Offline
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Posts: 10,020
MI, usa
You can build a pretty inexpensive low maintence 727 that will hold 900hp easy. For most of us thats plenty. Decent quality clutches & KD band, good VB, front drum, steel front planet, super sprage, RH46 pan will get it done.
Doug

Re: 727 sfi case [Re: Dragula] #3265779
10/22/24 09:46 AM
10/22/24 09:46 AM
Joined: Jan 2003
Posts: 75,306
A gulag near you.
JohnRR Offline
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JohnRR  Offline
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Joined: Jan 2003
Posts: 75,306
A gulag near you.
Originally Posted by Dragula
It does really look like a diesel trans, but I think they missed the mark on the design...If they ARE trying to contain the aforementioned drum explosion. They should have built in a steel sleeve or band in there somewhere. I do not think the design they have will do that. If they had sleeved it under all that extra reinforcement, with a steel band, then I think it would send it out the bottom which would be safer than into the drivers compartment.

My car was the victim of an exploding drum on the launch, although I was not the driver that day. The guy that was, was lucky to still have a foot. Broke two bones in his foot, and threw the shifter into the back of the car and pepper the interior like it was shot up with buck shot. I had chunks of the housing in the car, and a bunch of the rollers from the sprag, plus a bunch of the hot fluid. Was a real scary mess.


Were you running a stock drum in that trans ?

To me for the cost of that case, and having to cut the car up to use it, I would just buy a billet drum, a super sprag, and put a shield or blanket over the trans if It's required , the drum and sprag would be more than enough for the power level of my junk.

Last edited by JohnRR; 10/23/24 11:31 AM.

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Re: 727 sfi case [Re: JohnRR] #3265811
10/22/24 12:32 PM
10/22/24 12:32 PM
Joined: May 2004
Posts: 12,486
Taxes & Virus's R-US, NY
Dragula Offline
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Taxes & Virus's R-US, NY
Originally Posted by JohnRR
Originally Posted by Dragula
It does really look like a diesel trans, but I think they missed the mark on the design...If they ARE trying to contain the aforementioned drum explosion. They should have built in a steel sleeve or band in there somewhere. I do not think the design they have will do that. If they had sleeved it under all that extra reinforcement, with a steel band, then I think it would send it out the bottom which would be safer than into the drivers compartment.

My car was the victim of an exploding drum on the launch, although I was not the driver that day. The guy that was, was lucky to still have a foot. Broke two bones in his foot, and threw the shifter into the back of the car and pepper the interior like it was shot up with buck shot. I had chunks of the housing in the car, and a bunch of the rollers from the sprag, plus a bunch of the hot fluid. Was a real scary mess.


Were you running a stock drum in that trans ?

To me for the cost of that case, and having to cut the car up to use it, I would just buy a billet drum, a super sprag, and put a shield or blanket over the trans if It's required , the drum and sparg would be more than enough for the power level of my junk.


At the time, I do believe the drum was stock with good clutches and a RMVB. The drum in it now is A&A. To give you an idea how bad it was, we didn't find a good portion of the trans, it was just gone.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
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