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Re: 727 Over Heating Problem? [Re: Tig] #1293772
09/02/12 09:21 AM
09/02/12 09:21 AM
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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dizuster Offline OP
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dizuster  Offline OP
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Oakland, MI
I tried driving the car home yesterday in 2nd gear. Still got hot... so I guess I can't blame the 3.23 gear. Next I'll try the 2nd cooler since I have it already. If that doesn't doesn't work then I'll try taking the blanket off just to make sure it's really the problem.

I used to run my 11 second 340 duster around with a MUCH looser converter then this one, and it had an even smaller cooler. Gotta either be the blanket or something wrong in the trans.

Re: 727 Over Heating Problem? [Re: dizuster] #1293773
09/02/12 09:36 AM
09/02/12 09:36 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Posts: 52,972
Romeo MI
Quote:

I tried driving the car home yesterday in 2nd gear. Still got hot... so I guess I can't blame the 3.23 gear. Next I'll try the 2nd cooler since I have it already. If that doesn't doesn't work then I'll try taking the blanket off just to make sure it's really the problem.

I used to run my 11 second 340 duster around with a MUCH looser converter then this one, and it had an even smaller cooler. Gotta either be the blanket or something wrong in the trans.




Scott do you think that the exhaust is doing it...
might rap the exhaust right at the trans as a test....
I am going to add a couple of holes to my firewall
to get some air going through there... but yours is
open so that wouldnt be your issue

Re: 727 Over Heating Problem? [Re: MR_P_BODY] #1293774
09/02/12 10:43 AM
09/02/12 10:43 AM
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441 Offline
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Leon441  Offline
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Posts: 4,330
Lynchburg, VA
What size is the transmission line? What is the ID of the fittings going into the transmission?

If the line or the fittings are small then there you go. I ran #4 lines with aluminum fittings into the transmission. Big mistake. The aluminum fitting for 1/8" pipe is too small. Switched over to steel and drilled them out a little more. Plus I run #6 line now. These little things can make a huge difference.

Leon


Career best 8.02 @ 169 at 3050# and 10" tires small block power.
Re: 727 Over Heating Problem? [Re: Leon441] #1293775
09/02/12 10:48 AM
09/02/12 10:48 AM
Joined: Oct 2006
Posts: 4,590
Indy
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joshking440 Offline
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I also ran -6 line

Re: 727 Over Heating Problem? [Re: Leon441] #1293776
09/02/12 10:55 AM
09/02/12 10:55 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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MR_P_BODY  Offline
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Posts: 52,972
Romeo MI
Quote:

What size is the transmission line? What is the ID of the fittings going into the transmission?

If the line or the fittings are small then there you go. I ran #4 lines with aluminum fittings into the transmission. Big mistake. The aluminum fitting for 1/8" pipe is too small. Switched over to steel and drilled them out a little more. Plus I run #6 line now. These little things can make a huge difference.

Leon




My trans line is 3/8" OD(5/16"ID)its a 518 trans and
yes I drill the fittings... in Scotts case he has
5/16 OD... unless he changed it .... my cooler has
3/8 inlet outlets so it should be ok... I would like
to do a flow check to see how its flowing

Re: 727 Over Heating Problem? [Re: MR_P_BODY] #1293777
09/02/12 11:59 AM
09/02/12 11:59 AM
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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dizuster Offline OP
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Mine is all 3/8" lines and fittings. My guess is that the 1/8" npt at the case would be the restriction, but that would be the same thing for any 727.

The exhaust is wrapped at the trans. Plus has the blanket to insulate it.

Re: 727 Over Heating Problem? [Re: JohnRR] #1293778
09/02/12 12:17 PM
09/02/12 12:17 PM
Joined: Jul 2004
Posts: 19,318
State of confusion
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Thumperdart Offline
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Quote:

Quote:

No it's got a Griffin aluminum, so it's only using the aftermarket cooler for the trans.




You don't have enough cooling capacity with just the aftermarket cooler if the car is street driven


No problem here w/just a little b&m honey-comb cooler mounted in ft. of and BELOW the radiator NOT mounted to it............never see above 180 yet and I live in the desert and that`s w/a blanket.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: 727 Over Heating Problem? [Re: Thumperdart] #1293779
09/03/12 02:59 PM
09/03/12 02:59 PM
Joined: Jan 2003
Posts: 75,134
A Banana Republic near you.
JohnRR Offline
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JohnRR  Offline
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Joined: Jan 2003
Posts: 75,134
A Banana Republic near you.
Quote:

Quote:

Quote:

No it's got a Griffin aluminum, so it's only using the aftermarket cooler for the trans.




You don't have enough cooling capacity with just the aftermarket cooler if the car is street driven


No problem here w/just a little b&m honey-comb cooler mounted in ft. of and BELOW the radiator NOT mounted to it............never see above 180 yet and I live in the desert and that`s w/a blanket.




Are you running the same stall convertor , tire size and 3.23's ?

Re: 727 Over Heating Problem? [Re: JohnRR] #1293780
09/03/12 03:27 PM
09/03/12 03:27 PM
Joined: Oct 2006
Posts: 4,590
Indy
J
joshking440 Offline
Lunch is on me!
joshking440  Offline
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J

Joined: Oct 2006
Posts: 4,590
Indy
Not that its exactly the same, but my dads car 31" tall tire 8" converter 4:56 727 with a blanket, and he uses a trans cooler with a fan below the radiator and it never gets above 180

Re: 727 Over Heating Problem? [Re: JohnRR] #1293781
09/03/12 03:36 PM
09/03/12 03:36 PM
Joined: Jul 2004
Posts: 19,318
State of confusion
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Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
T

Joined: Jul 2004
Posts: 19,318
State of confusion
Quote:

Quote:

Quote:

Quote:

No it's got a Griffin aluminum, so it's only using the aftermarket cooler for the trans.




You don't have enough cooling capacity with just the aftermarket cooler if the car is street driven


No problem here w/just a little b&m honey-comb cooler mounted in ft. of and BELOW the radiator NOT mounted to it............never see above 180 yet and I live in the desert and that`s w/a blanket.




Are you running the same stall convertor , tire size and 3.23's ?


No sir I`m not nor would I..........that`s a tough unorthodox combo to me............just not ideal so maybe that`s where the problem lies.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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