Supercharged 5.3 (GMT-900) - will stock(ish) torque converters live?
#11
100% Redneck
The following users liked this post:
Smithsonite (03-17-2022)
#12
On The Tree
iTrader: (1)
I'm not sure I completely understand the terminology. Loose as in it will flash to its stall RPM easily, like at part throttle? I've owned a few hotrodded vehicles over the years, but never played with stall converters before. I don't fully understand what "tight" and "loose" are.
In their email they made it sound like it will be perfect for a daily driver, but still hold up to my abuse in MA traffic, towing heavier than I should be at higher than normal speeds, coupled with full throttle launches while loaded and still survive a long time.
In their email they made it sound like it will be perfect for a daily driver, but still hold up to my abuse in MA traffic, towing heavier than I should be at higher than normal speeds, coupled with full throttle launches while loaded and still survive a long time.
It really depends on what you are willing to live with. While I'm sure I could have better high throttle takeoffs with the 1b, normal driving is better with the 1a. The 1a for my heavy Crewcab 1500HD was looser than I was expecting. I believe it's just a stator change from 1a to 1b, so you could always send the convertor back to be reworked if you don't like the one you pick. So I went on the conservative side getting the 1a thinking I could send back for the 1b and stuck with the 1a.
The following users liked this post:
Smithsonite (03-17-2022)
#13
On The Tree
Thread Starter
Join Date: Oct 2020
Location: Where Freedom began ... and now goes to die.
Posts: 104
Received 25 Likes
on
20 Posts
Thanks, Red, for that info about turning in the old converter - I'll ask them about that whenever I scrape the cash together to order. Hopefully they'll take it.
Much appreciated, pknowles! I had it right, I just couldn't explain it. I remember discussing this with someone 30 years ago, but most of that info was all long since forgotten. That '78 Cutlass I had back then with a Crane 292H cam barely idled, yet had the stock converter! I used to get smoked by Ford Escorts at green lights for the first 100' because of that. It was embarrassing, lol. Didn't know how converters worked then. Once the tach hit 3k, HANG ON! She took off like a missile!
Red, I think that 1A / 1B thing could be a completely different build for our applications. I tow between 5,500 - 9k lbs. regularly with mine, so that could be why they suggested this custom build with a different part number. I think our clutches are probably the same, but everything else is different from there due to what we're doing with our trucks. My stall is going to be in the 2k- 2,200 RPM range not just for towing, but also because 4 months out of the year I have to drive in snow and ice. Flashing to peak torque doesn't work in snow, lol. You just spin endlessly and go nowhere.
Much appreciated, pknowles! I had it right, I just couldn't explain it. I remember discussing this with someone 30 years ago, but most of that info was all long since forgotten. That '78 Cutlass I had back then with a Crane 292H cam barely idled, yet had the stock converter! I used to get smoked by Ford Escorts at green lights for the first 100' because of that. It was embarrassing, lol. Didn't know how converters worked then. Once the tach hit 3k, HANG ON! She took off like a missile!
Red, I think that 1A / 1B thing could be a completely different build for our applications. I tow between 5,500 - 9k lbs. regularly with mine, so that could be why they suggested this custom build with a different part number. I think our clutches are probably the same, but everything else is different from there due to what we're doing with our trucks. My stall is going to be in the 2k- 2,200 RPM range not just for towing, but also because 4 months out of the year I have to drive in snow and ice. Flashing to peak torque doesn't work in snow, lol. You just spin endlessly and go nowhere.
Last edited by Smithsonite; 03-17-2022 at 10:18 AM.
#15
On The Tree
Thread Starter
Join Date: Oct 2020
Location: Where Freedom began ... and now goes to die.
Posts: 104
Received 25 Likes
on
20 Posts
Just an update ...
I talked with someone at Circle D about the "1A" vs "1B" subject. They stated that on the 265mm converters, the 1B is TIGHTER than the 1A.
On the 258mm converter, it is OPPOSITE. In that case, the 1A is TIGHTER than the 1B.
Hope this clears things up.
I talked with someone at Circle D about the "1A" vs "1B" subject. They stated that on the 265mm converters, the 1B is TIGHTER than the 1A.
On the 258mm converter, it is OPPOSITE. In that case, the 1A is TIGHTER than the 1B.
Hope this clears things up.
#16
On The Tree
Thread Starter
Join Date: Oct 2020
Location: Where Freedom began ... and now goes to die.
Posts: 104
Received 25 Likes
on
20 Posts
With the LS having such weak bottom end torque, I think with the blower it'll be just right. As it is in stock form, the truck hardly gets out of its own way until over 3k RPM, and really comes on nicely at 4k. Crazy high compared to what I grew up with.
Thread
Thread Starter
Forum
Replies
Last Post
Stroker 1500
GM Engine & Exhaust Performance
7
05-25-2005 10:10 PM