School me on converters please.
#1
School me on converters please.
Ok, so how much has converter technology changed. I have an LS swamped C4 with a 4L60E and a 3500 converter.
I was reluctant to go with a stall that high because I had a 3000 stall in my 81 PU with a TH350 and it was almost unbearable to drive at low speeds/RPMs.
The difference is amazing the only time I notice the stall at all is backing up or idling though a parking lot.
What gives?
Also, I have been advised not to manually shift my 4L60 because it can cause damage but when I shift it manually the Veh has way more power and is a lot quicker.
I was reluctant to go with a stall that high because I had a 3000 stall in my 81 PU with a TH350 and it was almost unbearable to drive at low speeds/RPMs.
The difference is amazing the only time I notice the stall at all is backing up or idling though a parking lot.
What gives?
Also, I have been advised not to manually shift my 4L60 because it can cause damage but when I shift it manually the Veh has way more power and is a lot quicker.
#3
FormerVendor
Join Date: Apr 2014
Location: Justin, TX
Posts: 263
Likes: 0
Received 0 Likes
on
0 Posts
It all depends on the core chosen for the torque converter, and what parts are achieved to reach the stall speed. Converter technology has also come a long way in the last 10 years!
#6
TECH Enthusiast
iTrader: (11)
Join Date: Dec 2002
Location: Iowa
Posts: 529
Likes: 0
Received 0 Likes
on
0 Posts
I dont know the inner workings and what has changed, but I know where you are coming from. I had a few 2500-3000+ converters built locally out of old gm cores that I ran in a few sbc applications and one bbc build quite a few years a go. They all pretty much sucked in comparison to my tci 3800 in my SS. I think thats why so many people are afraid to put one in their car. The newer ones are much tighter, and hit way harder. Having lockup is huge too.
#7
Moderator
Trending Topics
#8
The GM 245mm core has had a lot to do with the improvements in converters available to the average consumer. When it became popular (more than 10 yrs ago) it gave converter builders a lot more options to work with over older designs. There are quite a few different stator designs alone that come in these converters from GM, before you start modifying them. Pumps come in all different fin angles, etc. It's a nice "modular" converter that you can buy a boxload of cores, cut them all apart, and have a selection of parts to build just about any converter from ranging from a 300 HP street cruiser to a 1000+ HP strip converter.
#11
TECH Fanatic
iTrader: (1)
Join Date: Jul 2006
Location: MPLS MN
Posts: 1,215
Likes: 0
Received 0 Likes
on
0 Posts
jake, what leaps & bounds are missing from todays converters? what should a converter do that it cant ? thx orig poster you should search for an old thread called " converter education".
#12
FormerVendor
iTrader: (21)
My opinion on 2 of the major advancements are CNC machines and data logging. With CNCs we are capable of making converters hold 1000+ HP even with lock up. And with data gathering we have learned a lot on how the converter works going down the track and as a DD. Letting us really fine tune exactly how you want to converter to work.
Chris
Chris