Looking to get more serious. Need advice
Thread Starter
TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
Looking to get more serious. Need advice Well as things break it is just another excuse to upgrade. I am about to shoot for a performabuilt level 2 trans. I currently have a 278mm circle D stall rated at 3000-3200. It's a fairly tight converter and honestly I can't even feel it until I mash the pedal. Since my trans is getting an upgrade I figured a converter would be a good idea. I guess to go any further with this you will need to know my mods.
LS1 stock bottom
Ls6 heads/intake
Lts and TDs
Lunati 222/228 113+4
------------------------------
9" w/ 3.70
TA, LCA, PHB, SFC
LCA relocation, TA relocation
Billsteins
LS1 stock bottom
Ls6 heads/intake
Lts and TDs
Lunati 222/228 113+4
------------------------------
9" w/ 3.70
TA, LCA, PHB, SFC
LCA relocation, TA relocation
Billsteins
-------------------------------
390whp 370wtq
smooth flat torque curve from 3000 up
Car is full weight plus 9". 26" tire.
What kind of converter should I be running to maintain streetability and good track times? I was thinking of a 3800ish stall with more torque multiplication? IDK let me know what you guys think. Thanks.
390whp 370wtq
smooth flat torque curve from 3000 up
Car is full weight plus 9". 26" tire.
What kind of converter should I be running to maintain streetability and good track times? I was thinking of a 3800ish stall with more torque multiplication? IDK let me know what you guys think. Thanks.
As a general rule,
More torque multiplication=looseness,more slippage.
But that's gonna vary among/between convertor manufacturers.
Streetability also varies.
A 4000 with a STR of 2.0 from one manufacturer could be looser OR tighter of a 4000 with a STR of 2.0 from another manufacturer.
More torque multiplication=looseness,more slippage.
But that's gonna vary among/between convertor manufacturers.
Streetability also varies.
A 4000 with a STR of 2.0 from one manufacturer could be looser OR tighter of a 4000 with a STR of 2.0 from another manufacturer.
With my TH400 all the converter places for the exception of one said i should be running around a 4,000. Once my 4l60e comes out i have a yank SS 4,000 that was just freshened up if your interested
TECH Junkie
Joined: Nov 2013
Posts: 3,913
Likes: 366
From: White Bear, Mn
I'm in the process of having mine re stalled to a pt4400. I would say I'm not as sensitive to converter looseness as others also. Even if I had 2.73 rear gears I don't see it being a issue just to give ya a idea of where I'm coming from.
How high you spin your motor?
I spin to 7000 and with the pt4000 I see shift extensions around 6100 rpms. Looking to be around 63-6400
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