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#1 |
Junior Member
Join Date: Nov 2009
Posts: 21
Likes: 1
Liked 2 Times in 1 Post
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I'll put the car back on the track w/ the current -- and old -- Dynamic (Lupo) 9.5" piece that was in the car previously to get a baseline w/ the new engine combination. With that combination, it would flash to approx 4500 from a 2000 launch and showed about 8% slippage on the big end (1/4 mile).
Being a dual-purpose car, I don't presume the converter can be set "on kill" and still actually drive the pig to the track. However, my expectation is I'll be getting recommendations to go w/ a tight 8". The torque peak's moved up from about 4900 to 5100, and the HP peak has moved up from 6300 to 6800. Power-wise, the torque curve has picked up across the full 3500-7200 dyno pull range and the peak HP is is up about 60 HP. Trap RPM will probably increase from 6800 to maybe 7200 now. It's a BB Mopar (440 stock-stroke), and a number of BBM bracket racers were using Ultimate w/ good results before Lenny sold it (to one of his former employees, IIRC). I really don't have any complaints w/ Dynamic based on how the 9.5" has performed, but they haven't even updated their website in 10+ years. I have no sense for what they're doing today or what their rep is now. Have never used ATI, but I could drive there from where I live in Northern Virginia and talk to them face-to-face, if a better approach than over the phone. I have talked w/ their reps at the track, but not in many years. Also not against going somewhere else, so any feedback or thoughts as to what converter company might have a better handle on a combination like mine is appreciated. FWIW, it's approx 3800# w/ driver and should pick up noticeably over the old engine that was good for mid-to-high 10s as driven to the track. My apology if this post seems to bounce around in terms of how info is presented. Thx - Brad |
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#2 |
Member
Join Date: Dec 2015
Location: Bowling green, Ky
Posts: 218
Likes: 12
Liked 163 Times in 53 Posts
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Call Ultimate Converter Concepts and talk to Montgomery. He is now running the operation, and I believe he has worked for Lenny and Dawn for a number of years. I'm sure Lenny wouldn't have turn over is successful business to any one that wasn't as good as him. I have talked to Montgomery, and he is as nice as Lenny and Dawn. I am not at all hesitant to use Montgomery. He helped me through a possible issue with my current converter (which came from them) when switching to a power glide transmission from a turbo 400. I will be sending my converter back to them in a few weeks.
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#3 |
Junior Member
Join Date: Oct 2012
Location: Sydney , Australia
Posts: 91
Likes: 20
Liked 30 Times in 19 Posts
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ya know Brad .
I have a Dynamic 9 1/2 flashed to 4800 with 440 , 5000 behind 505 and was fine daily driving and and interstate .Now I have an A1 behind my 505 it is 6000 again been fine daily and interstate . I did also have the A1 behind my 440 for a while when i split the 505 stock block . A converter is always a bit of a cross your fingers and also how much of a compromise you can accept . Bit like ordering dinner in a dark restraunt in a foreign country . Tex |
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#4 |
Senior Member
Join Date: Sep 2010
Location: Houston,Texas
Posts: 731
Likes: 2,406
Liked 350 Times in 133 Posts
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Have had great luck with Circle D, would recommend them to anyone.
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#5 | |
Junior Member
Join Date: Apr 2017
Posts: 93
Likes: 19
Liked 30 Times in 16 Posts
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Last edited by Mike Rietow; 11-13-2021 at 12:55 AM. |
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