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A518 torque converter help #2952100
08/09/21 04:15 PM
08/09/21 04:15 PM
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cincinnati ohio
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mcat4321 Offline OP
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cincinnati ohio
a518 (46rh) guys with big HP what
torque lock up converter are you using

Re: A518 torque converter help [Re: mcat4321] #2952108
08/09/21 04:33 PM
08/09/21 04:33 PM
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Pattison Texas
CSK Offline
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PATC , not PTC is what I have, not high HP about 650ish in a 68 512 cid Charger street car, it is a lock up but only for light throttle, they do make multi disc converters, I had them build it for my combination & it was right on the money 4200 flash, when I had a Carb, now it flashes a little over 5k with the Hilborn EFI & long runners. drives great on the street.


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: A518 torque converter help [Re: CSK] #2952110
08/09/21 04:52 PM
08/09/21 04:52 PM
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cincinnati ohio
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mcat4321 Offline OP
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PATC not taking any orders

Re: A518 torque converter help [Re: mcat4321] #2952113
08/09/21 04:55 PM
08/09/21 04:55 PM
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Pattison Texas
CSK Offline
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CSK  Offline
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Well thats not good


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: A518 torque converter help [Re: CSK] #2952130
08/09/21 05:56 PM
08/09/21 05:56 PM
Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
Glen440 Offline
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I ordered a Patc 10" lockup back in April. They cannot get parts when I checked up on it in June.

Someone else makes one, I'm not sure who it is. Crt transmission has a video with one and I thought he said Ultimate converter. I phoned Ultimate and they told me they do not have an aftermarket lockup for the 727/518. Maybe have to order through crt.

I ended up having the stock 11" freshened, they couldn't do much for the stall speed. I don't need high stall yet so I can wait for now.


87 dakota 6.1 hemi
Re: A518 torque converter help [Re: Glen440] #2952136
08/09/21 06:18 PM
08/09/21 06:18 PM
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Tulsa OK
Bad340fish Offline
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IF you are not married to the lock up I bet you can change the pump and go non lock up. That will open up your options a ton. In a turbo deal the converter is pretty tight most of the time so losing the lock up may not be that big of a deal.


68 Barracuda Formula S 340
Re: A518 torque converter help [Re: Bad340fish] #2952138
08/09/21 06:25 PM
08/09/21 06:25 PM
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cincinnati ohio
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mcat4321 Offline OP
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Originally Posted by Bad340fish
IF you are not married to the lock up I bet you can change the pump and go non lock up. That will open up your options a ton. In a turbo deal the converter is pretty tight most of the time so losing the lock up may not be that big of a deal.
i would be all for this, but i am not fluent enough in transmissions to know if it will work that way

Re: A518 torque converter help [Re: mcat4321] #2952223
08/09/21 09:23 PM
08/09/21 09:23 PM
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Tulsa OK
Bad340fish Offline
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Originally Posted by mcat4321
Originally Posted by Bad340fish
IF you are not married to the lock up I bet you can change the pump and go non lock up. That will open up your options a ton. In a turbo deal the converter is pretty tight most of the time so losing the lock up may not be that big of a deal.
i would be all for this, but i am not fluent enough in transmissions to know if it will work that way



You might call the guys at A&A transmission, or hope Transman or John Kunkel(spelling?) answer you.


68 Barracuda Formula S 340
Re: A518 torque converter help [Re: Bad340fish] #2952291
08/10/21 12:09 AM
08/10/21 12:09 AM
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RTSE4ME Offline
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I did something similar. Not sure this would work and I don't know about A518s. But when I built my 904 race trans I used a 904 with lockup converter I didn't change the pump or input. I just ordered a non lockup converter that would work the existing lockup pump and input splines

Re: A518 torque converter help [Re: CSK] #2952606
08/10/21 07:54 PM
08/10/21 07:54 PM
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Atlanta, GA
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mgoblue9798 Offline
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Originally Posted by csk
PATC , not PTC is what I have, not high HP about 650ish in a 68 512 cid Charger street car, it is a lock up but only for light throttle, they do make multi disc converters, I had them build it for my combination & it was right on the money 4200 flash, when I had a Carb, now it flashes a little over 5k with the Hilborn EFI & long runners. drives great on the street.


Are you aware of someone making a multi disc converter for 518 gas trans? Only multi discs I have found are for the diesel trans.

Re: A518 torque converter help [Re: mgoblue9798] #2952619
08/10/21 08:24 PM
08/10/21 08:24 PM
Joined: Aug 2011
Posts: 2,853
Pattison Texas
CSK Offline
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Originally Posted by mgoblue9798
Originally Posted by csk
PATC , not PTC is what I have, not high HP about 650ish in a 68 512 cid Charger street car, it is a lock up but only for light throttle, they do make multi disc converters, I had them build it for my combination & it was right on the money 4200 flash, when I had a Carb, now it flashes a little over 5k with the Hilborn EFI & long runners. drives great on the street.


Are you aware of someone making a multi disc converter for 518 gas trans? Only multi discs I have found are for the diesel trans.


PATC said they could back when I had mine built. mine has Diesel internals ??


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: A518 torque converter help [Re: Glen440] #2954661
08/17/21 01:12 PM
08/17/21 01:12 PM
Joined: Aug 2008
Posts: 69
racine,wi
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70gtx1 Offline
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Originally Posted by Glen440
I ordered a Patc 10" lockup back in April. They cannot get parts when I checked up on it in June.

Someone else makes one, I'm not sure who it is. Crt transmission has a video with one and I thought he said Ultimate converter. I phoned Ultimate and they told me they do not have an aftermarket lockup for the 727/518. Maybe have to order through crt.

I ended up having the stock 11" freshened, they couldn't do much for the stall speed. I don't need high stall yet so I can wait for now.


The CRT video you are referring to , the converter is from Ultimate converter and trans https://www.facebook.com/UltimateTrans/ I actually have one of their 10 inch lockup converters in my CRT lockup 727 behind my hellcat swap 1970 GTX. It is working great so far.

Re: A518 torque converter help [Re: 70gtx1] #2954991
08/18/21 11:35 AM
08/18/21 11:35 AM
Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
Glen440 Offline
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Toronto Ontario, Can
I did not know there is more than one company starting with ultimate. Thanks.

I use the compushift mini controller and can lock the converter in 2nd 3rd or 4th. I did not want manual switches, it works good.


87 dakota 6.1 hemi
Re: A518 torque converter help [Re: 70gtx1] #2959730
08/31/21 10:26 PM
08/31/21 10:26 PM
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Posts: 767
NW PA
V10nacuda Offline
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[quote=70gtx1]

The CRT video you are referring to , the converter is from Ultimate converter and trans https://www.facebook.com/UltimateTrans/ I actually have one of their 10 inch lockup converters in my CRT lockup 727 behind my hellcat swap 1970 GTX. It is working great so far.


[quote]
Is yours a single disc billet piece like the diesel stuff?
Is this for a race car or cruiser and whats the approx stall on that? Thinking about using the 518 behind a Hellcat for a Ramcharger..







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