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Re: Racing with A518 -46RH transmission
[Re: JohnRR]
#56662
01/05/10 04:33 PM
01/05/10 04:33 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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gee, you changed the suspension (which should hook much better) and a converter with 1200 RPM more stall? well, that's an apples to kumquats comparison. to be fair, you really should have run the 727 with the same or comparable converter on the old suspension.
I'm guessing the majority of the 60' time improvement it due to the converter and suspension, not the tranny itself.
put cal-tracks and a 4k stall converter on the 46RE, I bet it would have sped up about the same.
Last edited by patrick; 01/05/10 04:39 PM.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Racing with A518 -46RH transmission
[Re: patrick]
#56663
01/05/10 05:30 PM
01/05/10 05:30 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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not that this matters, but I shipped a dry 727, and inside a tupperware box, it weighed about 140 lbs. I was right up on the limit of the Fed-Ex limit for ground shipments of 150lbs.
no converter.
**Photobucket sucks**
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Re: Racing with A518 -46RH transmission
[Re: patrick]
#56664
01/05/10 06:28 PM
01/05/10 06:28 PM
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Joined: May 2006
Posts: 1,260
New Mexico
Adobedude
pro stock
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pro stock
Joined: May 2006
Posts: 1,260
New Mexico
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Quote:
gee, you changed the suspension (which should hook much better) and a converter with 1200 RPM more stall? well, that's an apples to kumquats comparison. to be fair, you really should have run the 727 with the same or comparable converter on the old suspension.
I'm guessing the majority of the 60' time improvement it due to the converter and suspension, not the tranny itself.
put cal-tracks and a 4k stall converter on the 46RE, I bet it would have sped up about the same.
It was built 46RE, not a stock 46RE by any means, and had a non lock up valve body in it...It was like a 3 speed with the OD off. SO it was as good as a 46RE can get.
My old suspension was relocated QA1 shocks, it never spun out of the hole, hooked like crazy. I changed it because I, well, I wanted too.
I agree on the stall helping out...but my old cam and manifold were not working with the higher stall.
A big differance is the PCM controlled the 1-2 shift on the 46RE, I made the 2-3. My 727 is full manual, so it's not bouncing off the rev limiter on the 1-2.
Hard to compare apples to apples on a 46RE to 727 swap if the 46RE is computer controlled, and the 727 driver controlled...But there's no way in you know what I'm going back to a 46RE.
2001 Dodge Dakota
408 All Motor
11.27 @ 117.83 mph
2017 NM Mopar Challenge Series Champion.
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Re: Racing with A518 -46RH transmission
[Re: 70Cuda383]
#56665
01/05/10 06:30 PM
01/05/10 06:30 PM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
super stock
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super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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Well, having dropped a 46re on my chest, I can confidently say it's almost double that with the verter in it.  I would not doubt a significant gain using the 727 over the 518. The overdrive adds a good deal of rotating weight. I think a half second gain with the 727 is definitely possible. I believe the power loss through a 518 was figured to be something like 23 percent if memory serves correct.
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